5.在MVC中使用泛型仓储模式和工作单元来进行增删查改

      原文链接：http://www.c-sharpcorner.com/UploadFile/3d39b4/crud-operations-using-the-generic-repository-pattern-and-uni/

或者：http://www.codeproject.com/Articles/814768/CRUD-Operations-Using-the-Generic-Repository-Patte

系列目录：

• Relationship in Entity Framework Using Code First Approach With Fluent API【【使用EF Code-First方式和Fluent API来探讨EF中的关系】】
• Code First Migrations with Entity Framework【使用EF 做数据库迁移】
• CRUD Operations Using Entity Framework 5.0 Code First Approach in MVC【在MVC中使用EF 5.0做增删查改】
• CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式，来做增删查改】
• CRUD Operations Using the Generic Repository Pattern and Unit of Work in MVC【在MVC中使用泛型仓储模式和工作单元来做增删查改】
• CRUD Operations Using the Generic Repository Pattern and Dependency Injection in MVC【在MVC中使用泛型仓储模式和依赖注入，来做增删查改】

   

源代码下载：https://github.com/caofangsheng93/GenericRepositoryCURD

  这篇文章，我将会介绍在ASP.NET MVC应用程序中使用泛型仓储模式和工作单元。我将开发一个程序，对Book实体进行增删查改，为了保证这篇文章简单，便于大家理解泛型仓储模式和工作单元，在这篇文章中，我将只会使用一个Book实体。

在上篇文章中“4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式进行增删查改】“讲到了仓储模式，里面我们为Book实体，创建了一个仓储类，但是这个仓储仅仅是只能为一个实体服务的。试想一下，如果是真正的企业级开发，我们会有很多实体，难道，我们要为每一个实体都创建一个仓储类么？？？显然是不现实的。对于这个问题，我们需要创建一个可以为所有实体公用的仓储，所以这里引入泛型仓储。这样就避免了重复编码。

下面的图中，讲到了两个开发者，讨论一个问题："是否需要创建一个新的零件或者是利用已经存在的零件？"  ------如果你选择第一种，那么就是这篇文章讲到的，"4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式进行增删查改】"

但我在这里选择第二种，也就是这篇文章，我将要讲到的。--使用泛型仓储模式来重用代码，减少冗余代码。

 

既然说到仓储，那么什么是仓储模式呢？

仓储模式旨在数据访问层和业务逻辑层之间创建一个抽象层。仓储模式是数据访问模式，旨在达到数据访问的更松散的耦合性。我们在单独的类，或者类库中创建数据访问的逻辑，这就是仓储。仓储的职责就是和业务逻辑层进行通信。

在这篇文章中，我将会为所有的实体设计一个公共的泛型仓储，另外还有一个工作单元类。这个工作单元类，为每个实体创建仓储的实例，然后仓储实例用来做增删查改操作。我在控制器中创建工作单元类的实例，然后依据具体的实体，创建仓储的实例，然后就可以使用仓储中的方法进行每个操作了。

下面的图表显示了仓储和EF数据上下文之间的关系。在图中，MVC控制器直接通过工作单元和仓储进行交互，而不是直接和EF进行交互。

 

 

讲到这里，大家可能就会有疑问了,为什么要使用工作单元呢？？？

工作单元就像它的名字一样，做某件事情。在这篇文章中，工作单元主要做的是：我们创建工作单元的实例，然后工作单元为我们初始化EF数据上下文，然后每个仓储的实例都使用同一个数据上下文实例进行数据库操作。因此工作单元就是，用来确保所有的仓储实例都使用同一个数据上下文实例。

 

好了理论到此为止，讲的差不多了。现在我们开始进入正题：

 

先看看项目的结构：

 

这三个项目就不用做过多介绍了吧，前面的文章已经说了很多次了...

 

EF.Entity类库中，添加BaseEntity实体：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EF.Entity
{
    public abstract class BaseEntity
    {
        /// <summary>
        /// ID编号
        /// </summary>
        public int ID { get; set; }

        /// <summary>
        /// 添加时间
        /// </summary>
        public DateTime AddedDate { get; set; }

        /// <summary>
        /// 修改时间
        /// </summary>
        public DateTime ModifiedDate { get; set; }

        /// <summary>
        /// IP地址
        /// </summary>
        public string IP { get; set; }


    }
}

Book实体：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EF.Entity
{
   public class Book:BaseEntity
    {
       /// <summary>
       /// 书名
       /// </summary>
       public string Title { get; set; }

       /// <summary>
       /// 作者
       /// </summary>
       public string Author { get; set; }

       /// <summary>
       /// ISBN编号
       /// </summary>
       public string ISBN { get; set; }

       /// <summary>
       /// 出版时间
       /// </summary>
       public DateTime PublishedDate { get; set; }
    }
}

Entity.Data类库中BookMap类：

using EF.Entity;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity.ModelConfiguration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EF.Data
{
    public class BookMap:EntityTypeConfiguration<Book>
    {
        public BookMap()
        {
            //配置主键
            this.HasKey(s => s.ID);

            //配置字段
            this.Property(s => s.ID).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
            this.Property(s => s.Author).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();
            this.Property(s => s.AddedDate).IsRequired();
            this.Property(s => s.IP).IsOptional();
            this.Property(s => s.ISBN).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();
            this.Property(s => s.ModifiedDate).IsOptional();
            this.Property(s => s.PublishedDate).IsRequired();
            this.Property(s => s.Title).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();

            //配置表名
            this.ToTable("Books");
        }
    }
}

EF数据上下文类：

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace EF.Data
{
   public class EFDbContext:DbContext
    {
       public EFDbContext()
           : base("name=DbConnectionString")
       { }

       protected override void OnModelCreating(DbModelBuilder modelBuilder)
       {
           var typesToRegister = Assembly.GetExecutingAssembly().GetTypes()
     .Where(type => !String.IsNullOrEmpty(type.Namespace))
     .Where(type => type.BaseType != null && type.BaseType.IsGenericType
          && type.BaseType.GetGenericTypeDefinition() == typeof(EntityTypeConfiguration<>));
           foreach (var type in typesToRegister)
           {
               dynamic configurationInstance = Activator.CreateInstance(type);
               modelBuilder.Configurations.Add(configurationInstance);
           }  
           //base.OnModelCreating(modelBuilder);
       }
    }
}

 

然后启用数据库迁移，自动生成数据库，这里的步骤就省略了，因为前面的文章已经说了。

接着，在EF.Data项目中创建泛型仓储类，里面提供了增删查改的方法，这个泛型的仓储类中，有一个带DbContext参数的构造函数，所以当我们实例化仓储的时候，传递一个数据上下文对象给仓储，所有的实体就可以使用同一个数据上下文对象了。我们使用了数据上下文的SaveChange方法，但是你同样可以使用工作单元类的Save方法，因为这两者使用的是同一个数据上下文对象，下面是泛型的仓储类代码：【为了使文章更容易理解，这里我不创建泛型的仓储接口】。

 

using EF.Entity;
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.Validation;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EF.Data
{
    /// <summary>
    /// 泛型仓储类
    /// </summary>
    /// <typeparam name="T"></typeparam>
   public class Repository<T> where T:BaseEntity
    {
       /// <summary>
       /// 数据上下文变量
       /// </summary>
       private readonly EFDbContext db;
       string errorMessage = string.Empty;

       #region 封装属性
       /// <summary>
       /// 实体访问字段
       /// </summary>
       private IDbSet<T> entities;

       /// <summary>
       /// 封装属性
       /// </summary>
       public IDbSet<T> Entities
       {
           get
           {
               if (entities == null)
               {
                   return entities = db.Set<T>();
               }
               else
               {
                   return entities; 
               }
           }
       } 
       #endregion

       #region 构造函数
       public Repository(EFDbContext context)
       {
           this.db = context;
       } 
       #endregion

       #region 泛型方法--根据Id查找实体
       /// <summary>
       /// 泛型方法--根据Id查找实体
       /// </summary>
       /// <param name="id"></param>
       /// <returns></returns>
       public T GetById(int id)
       {
           return this.entities.Find(id);
       } 
       #endregion

       #region Insert
       public void Insert(T entity)
       {
           try
           {
               if (entity == null)
               {
                   throw new ArgumentNullException("entity");
               }
               else
               {
                   this.Entities.Add(entity);//把实体的状态设置为Added
                   this.db.SaveChanges();//保存到数据库
               }
           }
           catch (DbEntityValidationException dbEx)//DbEntityValidationException
           {
               foreach (var validationErrors in dbEx.EntityValidationErrors)
               {
                   foreach (var item in validationErrors.ValidationErrors)
                   {
                       errorMessage += string.Format("Property:{0} Error:{1}", item.PropertyName, item.ErrorMessage) + Environment.NewLine;
                   }
               }
               throw new Exception(errorMessage, dbEx);
           }
       } 
       #endregion

       #region Update
       public void Update(T entity)
       {
           try
           {
               if (entity == null)
               {
                   throw new ArgumentNullException("entity");
               }
               else
               {
                   this.db.SaveChanges();//保存到数据库
               }
           }
           catch (DbEntityValidationException dbEx)
           {
               foreach (var validationErrors in dbEx.EntityValidationErrors)
               {
                   foreach (var error in validationErrors.ValidationErrors)
                   {
                       errorMessage += string.Format("Property:{0} Error:{1}", error.PropertyName, error.ErrorMessage) + Environment.NewLine;
                   }
               }
               //抛出捕获的异常
               throw new Exception(errorMessage, dbEx);
           }
       } 
       #endregion

       #region Delete
       public void Delete(T entity)
       {
           try
           {
               if (entity == null)
               {
                   throw new ArgumentException("entity");
               }
               else
               {
                   this.db.Entry(entity).State = EntityState.Deleted;
                   this.db.SaveChanges();
               }
           }
           catch (DbEntityValidationException dbEx)
           {
               foreach (var validationErrors in dbEx.EntityValidationErrors)
               {
                   foreach (var error in validationErrors.ValidationErrors)
                   {
                       errorMessage += string.Format("Property:{0} Error:{1}", error.PropertyName, error.ErrorMessage) + Environment.NewLine;
                   }
               }

               throw new Exception(errorMessage, dbEx);
           }
       } 
       #endregion

       #region Table
       public virtual IQueryable<T> Table
       {
           get
           {
               return this.Entities;
           }
       } 
       #endregion


    }
}

 

 

下面创建工作单元类，UnitOfWork,这个工作单元类继承自IDisposable接口，所以它的实例将会在每个控制器中被 释放掉。工作单元类初始化了程序的上下文，工作单元类的核心就是Repository<T>() 类型的泛型方法，这个方法为继承自BaseEntity的每个实体返回了仓储实例。下面是工作单元类的代码：

using EF.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EF.Data
{
    public class UnitOfWork : IDisposable
    {
        private readonly EFDbContext db;
        private bool disposed;
        private Dictionary<string, object> repositories;

        public UnitOfWork(EFDbContext context)
        {
            this.db = context;  //构造函数中初始化上下文对象
        }

        public UnitOfWork()
        {
            db = new EFDbContext(); //构造函数中初始化上下文对象
        }

        #region Dispose
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
        public virtual void Dispose(bool disposing)
        {
            if (!disposed)
            {
                if (disposing)
                {
                    db.Dispose();
                }
            }
            disposed = true;
        }
        #endregion

        #region Save
        public void Save()
        {
            db.SaveChanges();
        } 
        #endregion

        #region Repository<T>()
        public Repository<T> Repository<T>() where T : BaseEntity
        {
            if (repositories == null)
            {
                repositories = new Dictionary<string, object>();

            }
            var type = typeof(T).Name;//获取当前成员名称
            if (!repositories.ContainsKey(type))//如果repositories中不包含Name
            {
                var repositoryType = typeof(Repository<>);//获取Repository<>类型
                var repositoryInstance = Activator.CreateInstance(repositoryType.MakeGenericType(typeof(T)), db);
                repositories.Add(type, repositoryInstance);

            }
            return (Repository<T>)repositories[type];

        } 
        #endregion


    }
}

 

 

 好了，底层的代码，写完了，现在开始写控制器的代码：我们创建一个Book控制器，进行增删查改。

using EF.Data;
using EF.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace EF.Web.Controllers
{
    public class BookController : Controller
    {
        //创建并实例化工作单元来
        private UnitOfWork unitOfWork = new UnitOfWork();
        private Repository<Book> bookRepository;

        public BookController()
        {
            //控制器的构造函数中，通过工作单元类的实例，来调用Repository<T>方法，实例化Book仓储
            bookRepository = unitOfWork.Repository<Book>();
        }

       
        #region Index
        public ActionResult Index()
        {
            IEnumerable<Book> lstBooks = bookRepository.Table.ToList();
            return View(lstBooks);
        } 
        #endregion

        #region CreateEditBook
        public ActionResult CreateEditBook(int? id)
        {
            Book model = new Book();
            if (id.HasValue) //如果ID有值
            {
                model = bookRepository.GetById(id.Value);
                return View(model);
            }
            else
            {
                return View(model);
            }
        } 
       

        [HttpPost]
        public ActionResult CreateEditBook(Book model)
        {
            if (model.ID == 0)//ID为0表示是添加
            {
                model.AddedDate = DateTime.Now;
                model.ModifiedDate = DateTime.Now;
                model.IP = Request.UserHostAddress;//获取客户端的主机地址
                bookRepository.Insert(model);
            }
            else //ID不为0,表示是修改
            {
               Book editModel=  bookRepository.GetById(model.ID);
               editModel.Author = model.Author;
               editModel.ISBN = model.ISBN;
               editModel.Title = model.Title;
               editModel.PublishedDate = model.PublishedDate;
               editModel.ModifiedDate = model.ModifiedDate;
               editModel.IP = Request.UserHostAddress;
               bookRepository.Update(editModel);

            }
            if (model.ID > 0)
            {
                return RedirectToAction("Index");
            }
            return View(model);
        }

        #endregion

        #region DeleteBook
        public ActionResult DeleteBook(int id)
        {
            Book model = bookRepository.GetById(id);
            return View(model);
        }

        [HttpPost, ActionName("DeleteBook")]
        public ActionResult ConfirmDeleteBook(int id)
        {
            Book model = bookRepository.GetById(id);
            bookRepository.Delete(model);
            return RedirectToAction("Index");
        }   
        #endregion

        #region DetailBook
        public ActionResult DetailBook(int id)
        {
            Book model = bookRepository.GetById(id);
            return View(model);
        } 
        #endregion

        #region Dispose
        protected override void Dispose(bool disposing)
        {
            unitOfWork.Dispose();
            base.Dispose(disposing);
        }   
        #endregion
    }
}

 

Index 视图代码：

@model IEnumerable<EF.Entity.Book>

<div class="book-example panel panel-primary">
    <div class="panel-heading panel-head">Books Listing</div>
    <div class="panel-body">
        <a id="createEditBookModal" href="@Url.Action("CreateEditBook")" class="btn btn-success">
            <span class="glyphicon glyphicon-plus"></span>Book
        </a>

        <table class="table" style="margin: 4px">
            <tr>
                <th>
                    @Html.DisplayNameFor(model => model.Title)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.Author)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.ISBN)
                </th>
                <th>
                    Action
                </th>

                <th></th>
            </tr>
            @foreach (var item in Model)
            {
                <tr>
                    <td>
                        @Html.DisplayFor(modelItem => item.Title)
                    </td>
                    <td>
                        @Html.DisplayFor(modelItem => item.Author)
                    </td>
                    <td>
                        @Html.DisplayFor(modelItem => item.ISBN)
                    </td>
                    <td>
                        @Html.ActionLink("Edit", "CreateEditBook", new { id = item.ID }, new { @class = "btn btn-success" }) |
                        @Html.ActionLink("Details", "DetailBook", new { id = item.ID }, new { @class = "btn btn-primary" }) |
                        @Html.ActionLink("Delete", "DeleteBook", new { id = item.ID }, new { @class = "btn btn-danger" })
                    </td>
                </tr>
            }

        </table>
    </div>
</div>  

CraeteEdit视图代码：

@model EF.Entity.Book

@{
    ViewBag.Title = "Create Edit Book";
}
<div class="book-example panel panel-primary">
    <div class="panel-heading panel-head">Add / Edit Book</div>
    <div class="panel-body">
        @using (Html.BeginForm())
        {
            <div class="form-horizontal">
                <div class="form-group">
                    @Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
                    <div class="col-lg-9">
                        @Html.TextBoxFor(model => model.Title, new { @class = "form-control" })
                    </div>
                </div>
                <div class="form-group">
                    @Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
                    <div class="col-lg-9">
                        @Html.TextBoxFor(model => model.ISBN, new { @class = "form-control" })
                    </div>
                </div>
                <div class="form-group">
                    @Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
                    <div class="col-lg-9">
                        @Html.TextBoxFor(model => model.Author, new { @class = "form-control" })
                    </div>
                </div>
                <div class="form-group">
                    @Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
                    <div class="col-lg-9">
                        @Html.TextBoxFor(model => model.Published, new { @class = "form-control datepicker" })
                    </div>
                </div>
                <div class="form-group">
                    <div class="col-lg-8"></div>
                    <div class="col-lg-3">
                        @Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-default" })
                        <button class="btn btn-success" id="btnSubmit" type="submit">
                            Submit
                        </button>
                    </div>
                </div>
            </div>
        }
    </div>
</div>
@section scripts  这里的话，在布局页中要添加这个块： @RenderSection("scripts", required: false)
{
    <script src="~/Scripts/bootstrap-datepicker.js" type="text/javascript"></script>
    <script src="~/Scripts/book-create-edit.js" type="text/javascript"></script>
}  

DeleteBook视图：

@model EF.Entity.Book

@{
    ViewBag.Title = "Delete Book";
}

<div class="book-example panel panel-primary">
    <div class="panel-heading panel-head">Delete Book</div>
    <div class="panel-body">
        <h3>Are you sure you want to delete this?</h3>
        <h1>@ViewBag.ErrorMessage</h1>
        <div class="form-horizontal">
            <div class="form-group">
                @Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Title, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Author, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.ISBN, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Published, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.AddedDate, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.AddedDate, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.ModifiedDate, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.ModifiedDate, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.IP, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.IP, new { @class = "form-control" })
                </div>
            </div>

            @using (Html.BeginForm())
            {
                <div class="form-group">
                    <div class="col-lg-1"></div>
                    <div class="col-lg-9">
                        <input type="submit" value="Delete" class="btn btn-danger" />
                        @Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-success" })
                    </div>
                </div>
            }
        </div>
    </div>
</div>  

Detail视图：

@model EF.Entity.Book
@{
    ViewBag.Title = "Detail Book";
}
<div class="book-example panel panel-primary">
    <div class="panel-heading panel-head">Book Detail</div>
    <div class="panel-body">
        <div class="form-horizontal">
            <div class="form-group">
                @Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Title, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Author, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.ISBN, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.Published, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.AddedDate, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.AddedDate, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.ModifiedDate, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.ModifiedDate, new { @class = "form-control" })
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.IP, new { @class = "col-lg-1 control-label" })
                <div class="col-lg-9">
                    @Html.DisplayFor(model => model.IP, new { @class = "form-control" })
                </div>
            </div>

            @using (Html.BeginForm())
            {
                <div class="form-group">
                    <div class="col-lg-1"></div>
                    <div class="col-lg-9">
                        @Html.ActionLink("Edit", "CreateEditBook", new { id = Model.ID }, new { @class = "btn btn-primary" })
                        @Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-success" })
                    </div>
                </div>
            }
        </div>
    </div>
</div>  

修改一下默认路由为Book控制器，Index方法，然后运行项目》》》

 后记：

用到的两个js文件

book-create-edit.js

(function ($) {
    function Book() {
        var $this = this;
        function initializeAddEditBook() {
            $('.datepicker').datepicker({
                "setDate": new Date(),
                "autoclose": true
            });            
        }
        $this.init = function () {            
            initializeAddEditBook();
        }
    }
    $(function () {
        var self = new Book();
        self.init();
    });
}(jQuery))

bootstrap-datepicker.js

/* =========================================================
 * bootstrap-datepicker.js
 * Repo: https://github.com/eternicode/bootstrap-datepicker/
 * Demo: http://eternicode.github.io/bootstrap-datepicker/
 * Docs: http://bootstrap-datepicker.readthedocs.org/
 * Forked from http://www.eyecon.ro/bootstrap-datepicker
 * =========================================================
 * Started by Stefan Petre; improvements by Andrew Rowls + contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================= */

(function($, undefined){

    var $window = $(window);

    function UTCDate(){
        return new Date(Date.UTC.apply(Date, arguments));
    }
    function UTCToday(){
        var today = new Date();
        return UTCDate(today.getFullYear(), today.getMonth(), today.getDate());
    }
    function alias(method){
        return function(){
            return this[method].apply(this, arguments);
        };
    }

    var DateArray = (function(){
        var extras = {
            get: function(i){
                return this.slice(i)[0];
            },
            contains: function(d){
                // Array.indexOf is not cross-browser;
                // $.inArray doesn't work with Dates
                var val = d && d.valueOf();
                for (var i=0, l=this.length; i < l; i++)
                    if (this[i].valueOf() === val)
                        return i;
                return -1;
            },
            remove: function(i){
                this.splice(i,1);
            },
            replace: function(new_array){
                if (!new_array)
                    return;
                if (!$.isArray(new_array))
                    new_array = [new_array];
                this.clear();
                this.push.apply(this, new_array);
            },
            clear: function(){
                this.splice(0);
            },
            copy: function(){
                var a = new DateArray();
                a.replace(this);
                return a;
            }
        };

        return function(){
            var a = [];
            a.push.apply(a, arguments);
            $.extend(a, extras);
            return a;
        };
    })();


    // Picker object

    var Datepicker = function(element, options){
        this.dates = new DateArray();
        this.viewDate = UTCToday();
        this.focusDate = null;

        this._process_options(options);

        this.element = $(element);
        this.isInline = false;
        this.isInput = this.element.is('input');
        this.component = this.element.is('.date') ? this.element.find('.add-on, .input-group-addon, .btn') : false;
        this.hasInput = this.component && this.element.find('input').length;
        if (this.component && this.component.length === 0)
            this.component = false;

        this.picker = $(DPGlobal.template);
        this._buildEvents();
        this._attachEvents();

        if (this.isInline){
            this.picker.addClass('datepicker-inline').appendTo(this.element);
        }
        else {
            this.picker.addClass('datepicker-dropdown dropdown-menu');
        }

        if (this.o.rtl){
            this.picker.addClass('datepicker-rtl');
        }

        this.viewMode = this.o.startView;

        if (this.o.calendarWeeks)
            this.picker.find('tfoot th.today')
                        .attr('colspan', function(i, val){
                            return parseInt(val) + 1;
                        });

        this._allow_update = false;

        this.setStartDate(this._o.startDate);
        this.setEndDate(this._o.endDate);
        this.setDaysOfWeekDisabled(this.o.daysOfWeekDisabled);

        this.fillDow();
        this.fillMonths();

        this._allow_update = true;

        this.update();
        this.showMode();

        if (this.isInline){
            this.show();
        }
    };

    Datepicker.prototype = {
        constructor: Datepicker,

        _process_options: function(opts){
            // Store raw options for reference
            this._o = $.extend({}, this._o, opts);
            // Processed options
            var o = this.o = $.extend({}, this._o);

            // Check if "de-DE" style date is available, if not language should
            // fallback to 2 letter code eg "de"
            var lang = o.language;
            if (!dates[lang]){
                lang = lang.split('-')[0];
                if (!dates[lang])
                    lang = defaults.language;
            }
            o.language = lang;

            switch (o.startView){
                case 2:
                case 'decade':
                    o.startView = 2;
                    break;
                case 1:
                case 'year':
                    o.startView = 1;
                    break;
                default:
                    o.startView = 0;
            }

            switch (o.minViewMode){
                case 1:
                case 'months':
                    o.minViewMode = 1;
                    break;
                case 2:
                case 'years':
                    o.minViewMode = 2;
                    break;
                default:
                    o.minViewMode = 0;
            }

            o.startView = Math.max(o.startView, o.minViewMode);

            // true, false, or Number > 0
            if (o.multidate !== true){
                o.multidate = Number(o.multidate) || false;
                if (o.multidate !== false)
                    o.multidate = Math.max(0, o.multidate);
                else
                    o.multidate = 1;
            }
            o.multidateSeparator = String(o.multidateSeparator);

            o.weekStart %= 7;
            o.weekEnd = ((o.weekStart + 6) % 7);

            var format = DPGlobal.parseFormat(o.format);
            if (o.startDate !== -Infinity){
                if (!!o.startDate){
                    if (o.startDate instanceof Date)
                        o.startDate = this._local_to_utc(this._zero_time(o.startDate));
                    else
                        o.startDate = DPGlobal.parseDate(o.startDate, format, o.language);
                }
                else {
                    o.startDate = -Infinity;
                }
            }
            if (o.endDate !== Infinity){
                if (!!o.endDate){
                    if (o.endDate instanceof Date)
                        o.endDate = this._local_to_utc(this._zero_time(o.endDate));
                    else
                        o.endDate = DPGlobal.parseDate(o.endDate, format, o.language);
                }
                else {
                    o.endDate = Infinity;
                }
            }

            o.daysOfWeekDisabled = o.daysOfWeekDisabled||[];
            if (!$.isArray(o.daysOfWeekDisabled))
                o.daysOfWeekDisabled = o.daysOfWeekDisabled.split(/[,s]*/);
            o.daysOfWeekDisabled = $.map(o.daysOfWeekDisabled, function(d){
                return parseInt(d, 10);
            });

            var plc = String(o.orientation).toLowerCase().split(/s+/g),
                _plc = o.orientation.toLowerCase();
            plc = $.grep(plc, function(word){
                return (/^auto|left|right|top|bottom$/).test(word);
            });
            o.orientation = {x: 'auto', y: 'auto'};
            if (!_plc || _plc === 'auto')
                ; // no action
            else if (plc.length === 1){
                switch (plc[0]){
                    case 'top':
                    case 'bottom':
                        o.orientation.y = plc[0];
                        break;
                    case 'left':
                    case 'right':
                        o.orientation.x = plc[0];
                        break;
                }
            }
            else {
                _plc = $.grep(plc, function(word){
                    return (/^left|right$/).test(word);
                });
                o.orientation.x = _plc[0] || 'auto';

                _plc = $.grep(plc, function(word){
                    return (/^top|bottom$/).test(word);
                });
                o.orientation.y = _plc[0] || 'auto';
            }
        },
        _events: [],
        _secondaryEvents: [],
        _applyEvents: function(evs){
            for (var i=0, el, ch, ev; i < evs.length; i++){
                el = evs[i][0];
                if (evs[i].length === 2){
                    ch = undefined;
                    ev = evs[i][1];
                }
                else if (evs[i].length === 3){
                    ch = evs[i][1];
                    ev = evs[i][2];
                }
                el.on(ev, ch);
            }
        },
        _unapplyEvents: function(evs){
            for (var i=0, el, ev, ch; i < evs.length; i++){
                el = evs[i][0];
                if (evs[i].length === 2){
                    ch = undefined;
                    ev = evs[i][1];
                }
                else if (evs[i].length === 3){
                    ch = evs[i][1];
                    ev = evs[i][2];
                }
                el.off(ev, ch);
            }
        },
        _buildEvents: function(){
            if (this.isInput){ // single input
                this._events = [
                    [this.element, {
                        focus: $.proxy(this.show, this),
                        keyup: $.proxy(function(e){
                            if ($.inArray(e.keyCode, [27,37,39,38,40,32,13,9]) === -1)
                                this.update();
                        }, this),
                        keydown: $.proxy(this.keydown, this)
                    }]
                ];
            }
            else if (this.component && this.hasInput){ // component: input + button
                this._events = [
                    // For components that are not readonly, allow keyboard nav
                    [this.element.find('input'), {
                        focus: $.proxy(this.show, this),
                        keyup: $.proxy(function(e){
                            if ($.inArray(e.keyCode, [27,37,39,38,40,32,13,9]) === -1)
                                this.update();
                        }, this),
                        keydown: $.proxy(this.keydown, this)
                    }],
                    [this.component, {
                        click: $.proxy(this.show, this)
                    }]
                ];
            }
            else if (this.element.is('div')){  // inline datepicker
                this.isInline = true;
            }
            else {
                this._events = [
                    [this.element, {
                        click: $.proxy(this.show, this)
                    }]
                ];
            }
            this._events.push(
                // Component: listen for blur on element descendants
                [this.element, '*', {
                    blur: $.proxy(function(e){
                        this._focused_from = e.target;
                    }, this)
                }],
                // Input: listen for blur on element
                [this.element, {
                    blur: $.proxy(function(e){
                        this._focused_from = e.target;
                    }, this)
                }]
            );

            this._secondaryEvents = [
                [this.picker, {
                    click: $.proxy(this.click, this)
                }],
                [$(window), {
                    resize: $.proxy(this.place, this)
                }],
                [$(document), {
                    'mousedown touchstart': $.proxy(function(e){
                        // Clicked outside the datepicker, hide it
                        if (!(
                            this.element.is(e.target) ||
                            this.element.find(e.target).length ||
                            this.picker.is(e.target) ||
                            this.picker.find(e.target).length
                        )){
                            this.hide();
                        }
                    }, this)
                }]
            ];
        },
        _attachEvents: function(){
            this._detachEvents();
            this._applyEvents(this._events);
        },
        _detachEvents: function(){
            this._unapplyEvents(this._events);
        },
        _attachSecondaryEvents: function(){
            this._detachSecondaryEvents();
            this._applyEvents(this._secondaryEvents);
        },
        _detachSecondaryEvents: function(){
            this._unapplyEvents(this._secondaryEvents);
        },
        _trigger: function(event, altdate){
            var date = altdate || this.dates.get(-1),
                local_date = this._utc_to_local(date);

            this.element.trigger({
                type: event,
                date: local_date,
                dates: $.map(this.dates, this._utc_to_local),
                format: $.proxy(function(ix, format){
                    if (arguments.length === 0){
                        ix = this.dates.length - 1;
                        format = this.o.format;
                    }
                    else if (typeof ix === 'string'){
                        format = ix;
                        ix = this.dates.length - 1;
                    }
                    format = format || this.o.format;
                    var date = this.dates.get(ix);
                    return DPGlobal.formatDate(date, format, this.o.language);
                }, this)
            });
        },

        show: function(){
            if (!this.isInline)
                this.picker.appendTo('body');
            this.picker.show();
            this.place();
            this._attachSecondaryEvents();
            this._trigger('show');
        },

        hide: function(){
            if (this.isInline)
                return;
            if (!this.picker.is(':visible'))
                return;
            this.focusDate = null;
            this.picker.hide().detach();
            this._detachSecondaryEvents();
            this.viewMode = this.o.startView;
            this.showMode();

            if (
                this.o.forceParse &&
                (
                    this.isInput && this.element.val() ||
                    this.hasInput && this.element.find('input').val()
                )
            )
                this.setValue();
            this._trigger('hide');
        },

        remove: function(){
            this.hide();
            this._detachEvents();
            this._detachSecondaryEvents();
            this.picker.remove();
            delete this.element.data().datepicker;
            if (!this.isInput){
                delete this.element.data().date;
            }
        },

        _utc_to_local: function(utc){
            return utc && new Date(utc.getTime() + (utc.getTimezoneOffset()*60000));
        },
        _local_to_utc: function(local){
            return local && new Date(local.getTime() - (local.getTimezoneOffset()*60000));
        },
        _zero_time: function(local){
            return local && new Date(local.getFullYear(), local.getMonth(), local.getDate());
        },
        _zero_utc_time: function(utc){
            return utc && new Date(Date.UTC(utc.getUTCFullYear(), utc.getUTCMonth(), utc.getUTCDate()));
        },

        getDates: function(){
            return $.map(this.dates, this._utc_to_local);
        },

        getUTCDates: function(){
            return $.map(this.dates, function(d){
                return new Date(d);
            });
        },

        getDate: function(){
            return this._utc_to_local(this.getUTCDate());
        },

        getUTCDate: function(){
            return new Date(this.dates.get(-1));
        },

        setDates: function(){
            var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
            this.update.apply(this, args);
            this._trigger('changeDate');
            this.setValue();
        },

        setUTCDates: function(){
            var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
            this.update.apply(this, $.map(args, this._utc_to_local));
            this._trigger('changeDate');
            this.setValue();
        },

        setDate: alias('setDates'),
        setUTCDate: alias('setUTCDates'),

        setValue: function(){
            var formatted = this.getFormattedDate();
            if (!this.isInput){
                if (this.component){
                    this.element.find('input').val(formatted).change();
                }
            }
            else {
                this.element.val(formatted).change();
            }
        },

        getFormattedDate: function(format){
            if (format === undefined)
                format = this.o.format;

            var lang = this.o.language;
            return $.map(this.dates, function(d){
                return DPGlobal.formatDate(d, format, lang);
            }).join(this.o.multidateSeparator);
        },

        setStartDate: function(startDate){
            this._process_options({startDate: startDate});
            this.update();
            this.updateNavArrows();
        },

        setEndDate: function(endDate){
            this._process_options({endDate: endDate});
            this.update();
            this.updateNavArrows();
        },

        setDaysOfWeekDisabled: function(daysOfWeekDisabled){
            this._process_options({daysOfWeekDisabled: daysOfWeekDisabled});
            this.update();
            this.updateNavArrows();
        },

        place: function(){
            if (this.isInline)
                return;
            var calendarWidth = this.picker.outerWidth(),
                calendarHeight = this.picker.outerHeight(),
                visualPadding = 10,
                windowWidth = $window.width(),
                windowHeight = $window.height(),
                scrollTop = $window.scrollTop();

            var zIndex = parseInt(this.element.parents().filter(function(){
                    return $(this).css('z-index') !== 'auto';
            }).first().css('z-index')) + 10;
            var offset = this.component ? this.component.parent().offset() : this.element.offset();
            var height = this.component ? this.component.outerHeight(true) : this.element.outerHeight(false);
            var width = this.component ? this.component.outerWidth(true) : this.element.outerWidth(false);
            var left = offset.left,
                top = offset.top;

            this.picker.removeClass(
                'datepicker-orient-top datepicker-orient-bottom '+
                'datepicker-orient-right datepicker-orient-left'
            );

            if (this.o.orientation.x !== 'auto'){
                this.picker.addClass('datepicker-orient-' + this.o.orientation.x);
                if (this.o.orientation.x === 'right')
                    left -= calendarWidth - width;
            }
            // auto x orientation is best-placement: if it crosses a window
            // edge, fudge it sideways
            else {
                // Default to left
                this.picker.addClass('datepicker-orient-left');
                if (offset.left < 0)
                    left -= offset.left - visualPadding;
                else if (offset.left + calendarWidth > windowWidth)
                    left = windowWidth - calendarWidth - visualPadding;
            }

            // auto y orientation is best-situation: top or bottom, no fudging,
            // decision based on which shows more of the calendar
            var yorient = this.o.orientation.y,
                top_overflow, bottom_overflow;
            if (yorient === 'auto'){
                top_overflow = -scrollTop + offset.top - calendarHeight;
                bottom_overflow = scrollTop + windowHeight - (offset.top + height + calendarHeight);
                if (Math.max(top_overflow, bottom_overflow) === bottom_overflow)
                    yorient = 'top';
                else
                    yorient = 'bottom';
            }
            this.picker.addClass('datepicker-orient-' + yorient);
            if (yorient === 'top')
                top += height;
            else
                top -= calendarHeight + parseInt(this.picker.css('padding-top'));

            this.picker.css({
                top: top,
                left: left,
                zIndex: zIndex
            });
        },

        _allow_update: true,
        update: function(){
            if (!this._allow_update)
                return;

            var oldDates = this.dates.copy(),
                dates = [],
                fromArgs = false;
            if (arguments.length){
                $.each(arguments, $.proxy(function(i, date){
                    if (date instanceof Date)
                        date = this._local_to_utc(date);
                    dates.push(date);
                }, this));
                fromArgs = true;
            }
            else {
                dates = this.isInput
                        ? this.element.val()
                        : this.element.data('date') || this.element.find('input').val();
                if (dates && this.o.multidate)
                    dates = dates.split(this.o.multidateSeparator);
                else
                    dates = [dates];
                delete this.element.data().date;
            }

            dates = $.map(dates, $.proxy(function(date){
                return DPGlobal.parseDate(date, this.o.format, this.o.language);
            }, this));
            dates = $.grep(dates, $.proxy(function(date){
                return (
                    date < this.o.startDate ||
                    date > this.o.endDate ||
                    !date
                );
            }, this), true);
            this.dates.replace(dates);

            if (this.dates.length)
                this.viewDate = new Date(this.dates.get(-1));
            else if (this.viewDate < this.o.startDate)
                this.viewDate = new Date(this.o.startDate);
            else if (this.viewDate > this.o.endDate)
                this.viewDate = new Date(this.o.endDate);

            if (fromArgs){
                // setting date by clicking
                this.setValue();
            }
            else if (dates.length){
                // setting date by typing
                if (String(oldDates) !== String(this.dates))
                    this._trigger('changeDate');
            }
            if (!this.dates.length && oldDates.length)
                this._trigger('clearDate');

            this.fill();
        },

        fillDow: function(){
            var dowCnt = this.o.weekStart,
                html = '<tr>';
            if (this.o.calendarWeeks){
                var cell = '<th class="cw">&nbsp;</th>';
                html += cell;
                this.picker.find('.datepicker-days thead tr:first-child').prepend(cell);
            }
            while (dowCnt < this.o.weekStart + 7){
                html += '<th class="dow">'+dates[this.o.language].daysMin[(dowCnt++)%7]+'</th>';
            }
            html += '</tr>';
            this.picker.find('.datepicker-days thead').append(html);
        },

        fillMonths: function(){
            var html = '',
            i = 0;
            while (i < 12){
                html += '<span class="month">'+dates[this.o.language].monthsShort[i++]+'</span>';
            }
            this.picker.find('.datepicker-months td').html(html);
        },

        setRange: function(range){
            if (!range || !range.length)
                delete this.range;
            else
                this.range = $.map(range, function(d){
                    return d.valueOf();
                });
            this.fill();
        },

        getClassNames: function(date){
            var cls = [],
                year = this.viewDate.getUTCFullYear(),
                month = this.viewDate.getUTCMonth(),
                today = new Date();
            if (date.getUTCFullYear() < year || (date.getUTCFullYear() === year && date.getUTCMonth() < month)){
                cls.push('old');
            }
            else if (date.getUTCFullYear() > year || (date.getUTCFullYear() === year && date.getUTCMonth() > month)){
                cls.push('new');
            }
            if (this.focusDate && date.valueOf() === this.focusDate.valueOf())
                cls.push('focused');
            // Compare internal UTC date with local today, not UTC today
            if (this.o.todayHighlight &&
                date.getUTCFullYear() === today.getFullYear() &&
                date.getUTCMonth() === today.getMonth() &&
                date.getUTCDate() === today.getDate()){
                cls.push('today');
            }
            if (this.dates.contains(date) !== -1)
                cls.push('active');
            if (date.valueOf() < this.o.startDate || date.valueOf() > this.o.endDate ||
                $.inArray(date.getUTCDay(), this.o.daysOfWeekDisabled) !== -1){
                cls.push('disabled');
            }
            if (this.range){
                if (date > this.range[0] && date < this.range[this.range.length-1]){
                    cls.push('range');
                }
                if ($.inArray(date.valueOf(), this.range) !== -1){
                    cls.push('selected');
                }
            }
            return cls;
        },

        fill: function(){
            var d = new Date(this.viewDate),
                year = d.getUTCFullYear(),
                month = d.getUTCMonth(),
                startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity,
                startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity,
                endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity,
                endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity,
                todaytxt = dates[this.o.language].today || dates['en'].today || '',
                cleartxt = dates[this.o.language].clear || dates['en'].clear || '',
                tooltip;
            this.picker.find('.datepicker-days thead th.datepicker-switch')
                        .text(dates[this.o.language].months[month]+' '+year);
            this.picker.find('tfoot th.today')
                        .text(todaytxt)
                        .toggle(this.o.todayBtn !== false);
            this.picker.find('tfoot th.clear')
                        .text(cleartxt)
                        .toggle(this.o.clearBtn !== false);
            this.updateNavArrows();
            this.fillMonths();
            var prevMonth = UTCDate(year, month-1, 28),
                day = DPGlobal.getDaysInMonth(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth());
            prevMonth.setUTCDate(day);
            prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.o.weekStart + 7)%7);
            var nextMonth = new Date(prevMonth);
            nextMonth.setUTCDate(nextMonth.getUTCDate() + 42);
            nextMonth = nextMonth.valueOf();
            var html = [];
            var clsName;
            while (prevMonth.valueOf() < nextMonth){
                if (prevMonth.getUTCDay() === this.o.weekStart){
                    html.push('<tr>');
                    if (this.o.calendarWeeks){
                        // ISO 8601: First week contains first thursday.
                        // ISO also states week starts on Monday, but we can be more abstract here.
                        var
                            // Start of current week: based on weekstart/current date
                            ws = new Date(+prevMonth + (this.o.weekStart - prevMonth.getUTCDay() - 7) % 7 * 864e5),
                            // Thursday of this week
                            th = new Date(Number(ws) + (7 + 4 - ws.getUTCDay()) % 7 * 864e5),
                            // First Thursday of year, year from thursday
                            yth = new Date(Number(yth = UTCDate(th.getUTCFullYear(), 0, 1)) + (7 + 4 - yth.getUTCDay())%7*864e5),
                            // Calendar week: ms between thursdays, div ms per day, div 7 days
                            calWeek =  (th - yth) / 864e5 / 7 + 1;
                        html.push('<td class="cw">'+ calWeek +'</td>');

                    }
                }
                clsName = this.getClassNames(prevMonth);
                clsName.push('day');

                if (this.o.beforeShowDay !== $.noop){
                    var before = this.o.beforeShowDay(this._utc_to_local(prevMonth));
                    if (before === undefined)
                        before = {};
                    else if (typeof(before) === 'boolean')
                        before = {enabled: before};
                    else if (typeof(before) === 'string')
                        before = {classes: before};
                    if (before.enabled === false)
                        clsName.push('disabled');
                    if (before.classes)
                        clsName = clsName.concat(before.classes.split(/s+/));
                    if (before.tooltip)
                        tooltip = before.tooltip;
                }

                clsName = $.unique(clsName);
                html.push('<td class="'+clsName.join(' ')+'"' + (tooltip ? ' title="'+tooltip+'"' : '') + '>'+prevMonth.getUTCDate() + '</td>');
                if (prevMonth.getUTCDay() === this.o.weekEnd){
                    html.push('</tr>');
                }
                prevMonth.setUTCDate(prevMonth.getUTCDate()+1);
            }
            this.picker.find('.datepicker-days tbody').empty().append(html.join(''));

            var months = this.picker.find('.datepicker-months')
                        .find('th:eq(1)')
                            .text(year)
                            .end()
                        .find('span').removeClass('active');

            $.each(this.dates, function(i, d){
                if (d.getUTCFullYear() === year)
                    months.eq(d.getUTCMonth()).addClass('active');
            });

            if (year < startYear || year > endYear){
                months.addClass('disabled');
            }
            if (year === startYear){
                months.slice(0, startMonth).addClass('disabled');
            }
            if (year === endYear){
                months.slice(endMonth+1).addClass('disabled');
            }

            html = '';
            year = parseInt(year/10, 10) * 10;
            var yearCont = this.picker.find('.datepicker-years')
                                .find('th:eq(1)')
                                    .text(year + '-' + (year + 9))
                                    .end()
                                .find('td');
            year -= 1;
            var years = $.map(this.dates, function(d){
                    return d.getUTCFullYear();
                }),
                classes;
            for (var i = -1; i < 11; i++){
                classes = ['year'];
                if (i === -1)
                    classes.push('old');
                else if (i === 10)
                    classes.push('new');
                if ($.inArray(year, years) !== -1)
                    classes.push('active');
                if (year < startYear || year > endYear)
                    classes.push('disabled');
                html += '<span class="' + classes.join(' ') + '">'+year+'</span>';
                year += 1;
            }
            yearCont.html(html);
        },

        updateNavArrows: function(){
            if (!this._allow_update)
                return;

            var d = new Date(this.viewDate),
                year = d.getUTCFullYear(),
                month = d.getUTCMonth();
            switch (this.viewMode){
                case 0:
                    if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear() && month <= this.o.startDate.getUTCMonth()){
                        this.picker.find('.prev').css({visibility: 'hidden'});
                    }
                    else {
                        this.picker.find('.prev').css({visibility: 'visible'});
                    }
                    if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear() && month >= this.o.endDate.getUTCMonth()){
                        this.picker.find('.next').css({visibility: 'hidden'});
                    }
                    else {
                        this.picker.find('.next').css({visibility: 'visible'});
                    }
                    break;
                case 1:
                case 2:
                    if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear()){
                        this.picker.find('.prev').css({visibility: 'hidden'});
                    }
                    else {
                        this.picker.find('.prev').css({visibility: 'visible'});
                    }
                    if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear()){
                        this.picker.find('.next').css({visibility: 'hidden'});
                    }
                    else {
                        this.picker.find('.next').css({visibility: 'visible'});
                    }
                    break;
            }
        },

        click: function(e){
            e.preventDefault();
            var target = $(e.target).closest('span, td, th'),
                year, month, day;
            if (target.length === 1){
                switch (target[0].nodeName.toLowerCase()){
                    case 'th':
                        switch (target[0].className){
                            case 'datepicker-switch':
                                this.showMode(1);
                                break;
                            case 'prev':
                            case 'next':
                                var dir = DPGlobal.modes[this.viewMode].navStep * (target[0].className === 'prev' ? -1 : 1);
                                switch (this.viewMode){
                                    case 0:
                                        this.viewDate = this.moveMonth(this.viewDate, dir);
                                        this._trigger('changeMonth', this.viewDate);
                                        break;
                                    case 1:
                                    case 2:
                                        this.viewDate = this.moveYear(this.viewDate, dir);
                                        if (this.viewMode === 1)
                                            this._trigger('changeYear', this.viewDate);
                                        break;
                                }
                                this.fill();
                                break;
                            case 'today':
                                var date = new Date();
                                date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);

                                this.showMode(-2);
                                var which = this.o.todayBtn === 'linked' ? null : 'view';
                                this._setDate(date, which);
                                break;
                            case 'clear':
                                var element;
                                if (this.isInput)
                                    element = this.element;
                                else if (this.component)
                                    element = this.element.find('input');
                                if (element)
                                    element.val("").change();
                                this.update();
                                this._trigger('changeDate');
                                if (this.o.autoclose)
                                    this.hide();
                                break;
                        }
                        break;
                    case 'span':
                        if (!target.is('.disabled')){
                            this.viewDate.setUTCDate(1);
                            if (target.is('.month')){
                                day = 1;
                                month = target.parent().find('span').index(target);
                                year = this.viewDate.getUTCFullYear();
                                this.viewDate.setUTCMonth(month);
                                this._trigger('changeMonth', this.viewDate);
                                if (this.o.minViewMode === 1){
                                    this._setDate(UTCDate(year, month, day));
                                }
                            }
                            else {
                                day = 1;
                                month = 0;
                                year = parseInt(target.text(), 10)||0;
                                this.viewDate.setUTCFullYear(year);
                                this._trigger('changeYear', this.viewDate);
                                if (this.o.minViewMode === 2){
                                    this._setDate(UTCDate(year, month, day));
                                }
                            }
                            this.showMode(-1);
                            this.fill();
                        }
                        break;
                    case 'td':
                        if (target.is('.day') && !target.is('.disabled')){
                            day = parseInt(target.text(), 10)||1;
                            year = this.viewDate.getUTCFullYear();
                            month = this.viewDate.getUTCMonth();
                            if (target.is('.old')){
                                if (month === 0){
                                    month = 11;
                                    year -= 1;
                                }
                                else {
                                    month -= 1;
                                }
                            }
                            else if (target.is('.new')){
                                if (month === 11){
                                    month = 0;
                                    year += 1;
                                }
                                else {
                                    month += 1;
                                }
                            }
                            this._setDate(UTCDate(year, month, day));
                        }
                        break;
                }
            }
            if (this.picker.is(':visible') && this._focused_from){
                $(this._focused_from).focus();
            }
            delete this._focused_from;
        },

        _toggle_multidate: function(date){
            var ix = this.dates.contains(date);
            if (!date){
                this.dates.clear();
            }
            else if (ix !== -1){
                this.dates.remove(ix);
            }
            else {
                this.dates.push(date);
            }
            if (typeof this.o.multidate === 'number')
                while (this.dates.length > this.o.multidate)
                    this.dates.remove(0);
        },

        _setDate: function(date, which){
            if (!which || which === 'date')
                this._toggle_multidate(date && new Date(date));
            if (!which || which  === 'view')
                this.viewDate = date && new Date(date);

            this.fill();
            this.setValue();
            this._trigger('changeDate');
            var element;
            if (this.isInput){
                element = this.element;
            }
            else if (this.component){
                element = this.element.find('input');
            }
            if (element){
                element.change();
            }
            if (this.o.autoclose && (!which || which === 'date')){
                this.hide();
            }
        },

        moveMonth: function(date, dir){
            if (!date)
                return undefined;
            if (!dir)
                return date;
            var new_date = new Date(date.valueOf()),
                day = new_date.getUTCDate(),
                month = new_date.getUTCMonth(),
                mag = Math.abs(dir),
                new_month, test;
            dir = dir > 0 ? 1 : -1;
            if (mag === 1){
                test = dir === -1
                    // If going back one month, make sure month is not current month
                    // (eg, Mar 31 -> Feb 31 == Feb 28, not Mar 02)
                    ? function(){
                        return new_date.getUTCMonth() === month;
                    }
                    // If going forward one month, make sure month is as expected
                    // (eg, Jan 31 -> Feb 31 == Feb 28, not Mar 02)
                    : function(){
                        return new_date.getUTCMonth() !== new_month;
                    };
                new_month = month + dir;
                new_date.setUTCMonth(new_month);
                // Dec -> Jan (12) or Jan -> Dec (-1) -- limit expected date to 0-11
                if (new_month < 0 || new_month > 11)
                    new_month = (new_month + 12) % 12;
            }
            else {
                // For magnitudes >1, move one month at a time...
                for (var i=0; i < mag; i++)
                    // ...which might decrease the day (eg, Jan 31 to Feb 28, etc)...
                    new_date = this.moveMonth(new_date, dir);
                // ...then reset the day, keeping it in the new month
                new_month = new_date.getUTCMonth();
                new_date.setUTCDate(day);
                test = function(){
                    return new_month !== new_date.getUTCMonth();
                };
            }
            // Common date-resetting loop -- if date is beyond end of month, make it
            // end of month
            while (test()){
                new_date.setUTCDate(--day);
                new_date.setUTCMonth(new_month);
            }
            return new_date;
        },

        moveYear: function(date, dir){
            return this.moveMonth(date, dir*12);
        },

        dateWithinRange: function(date){
            return date >= this.o.startDate && date <= this.o.endDate;
        },

        keydown: function(e){
            if (this.picker.is(':not(:visible)')){
                if (e.keyCode === 27) // allow escape to hide and re-show picker
                    this.show();
                return;
            }
            var dateChanged = false,
                dir, newDate, newViewDate,
                focusDate = this.focusDate || this.viewDate;
            switch (e.keyCode){
                case 27: // escape
                    if (this.focusDate){
                        this.focusDate = null;
                        this.viewDate = this.dates.get(-1) || this.viewDate;
                        this.fill();
                    }
                    else
                        this.hide();
                    e.preventDefault();
                    break;
                case 37: // left
                case 39: // right
                    if (!this.o.keyboardNavigation)
                        break;
                    dir = e.keyCode === 37 ? -1 : 1;
                    if (e.ctrlKey){
                        newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir);
                        newViewDate = this.moveYear(focusDate, dir);
                        this._trigger('changeYear', this.viewDate);
                    }
                    else if (e.shiftKey){
                        newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir);
                        newViewDate = this.moveMonth(focusDate, dir);
                        this._trigger('changeMonth', this.viewDate);
                    }
                    else {
                        newDate = new Date(this.dates.get(-1) || UTCToday());
                        newDate.setUTCDate(newDate.getUTCDate() + dir);
                        newViewDate = new Date(focusDate);
                        newViewDate.setUTCDate(focusDate.getUTCDate() + dir);
                    }
                    if (this.dateWithinRange(newDate)){
                        this.focusDate = this.viewDate = newViewDate;
                        this.setValue();
                        this.fill();
                        e.preventDefault();
                    }
                    break;
                case 38: // up
                case 40: // down
                    if (!this.o.keyboardNavigation)
                        break;
                    dir = e.keyCode === 38 ? -1 : 1;
                    if (e.ctrlKey){
                        newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir);
                        newViewDate = this.moveYear(focusDate, dir);
                        this._trigger('changeYear', this.viewDate);
                    }
                    else if (e.shiftKey){
                        newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir);
                        newViewDate = this.moveMonth(focusDate, dir);
                        this._trigger('changeMonth', this.viewDate);
                    }
                    else {
                        newDate = new Date(this.dates.get(-1) || UTCToday());
                        newDate.setUTCDate(newDate.getUTCDate() + dir * 7);
                        newViewDate = new Date(focusDate);
                        newViewDate.setUTCDate(focusDate.getUTCDate() + dir * 7);
                    }
                    if (this.dateWithinRange(newDate)){
                        this.focusDate = this.viewDate = newViewDate;
                        this.setValue();
                        this.fill();
                        e.preventDefault();
                    }
                    break;
                case 32: // spacebar
                    // Spacebar is used in manually typing dates in some formats.
                    // As such, its behavior should not be hijacked.
                    break;
                case 13: // enter
                    focusDate = this.focusDate || this.dates.get(-1) || this.viewDate;
                    this._toggle_multidate(focusDate);
                    dateChanged = true;
                    this.focusDate = null;
                    this.viewDate = this.dates.get(-1) || this.viewDate;
                    this.setValue();
                    this.fill();
                    if (this.picker.is(':visible')){
                        e.preventDefault();
                        if (this.o.autoclose)
                            this.hide();
                    }
                    break;
                case 9: // tab
                    this.focusDate = null;
                    this.viewDate = this.dates.get(-1) || this.viewDate;
                    this.fill();
                    this.hide();
                    break;
            }
            if (dateChanged){
                if (this.dates.length)
                    this._trigger('changeDate');
                else
                    this._trigger('clearDate');
                var element;
                if (this.isInput){
                    element = this.element;
                }
                else if (this.component){
                    element = this.element.find('input');
                }
                if (element){
                    element.change();
                }
            }
        },

        showMode: function(dir){
            if (dir){
                this.viewMode = Math.max(this.o.minViewMode, Math.min(2, this.viewMode + dir));
            }
            this.picker
                .find('>div')
                .hide()
                .filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName)
                    .css('display', 'block');
            this.updateNavArrows();
        }
    };

    var DateRangePicker = function(element, options){
        this.element = $(element);
        this.inputs = $.map(options.inputs, function(i){
            return i.jquery ? i[0] : i;
        });
        delete options.inputs;

        $(this.inputs)
            .datepicker(options)
            .bind('changeDate', $.proxy(this.dateUpdated, this));

        this.pickers = $.map(this.inputs, function(i){
            return $(i).data('datepicker');
        });
        this.updateDates();
    };
    DateRangePicker.prototype = {
        updateDates: function(){
            this.dates = $.map(this.pickers, function(i){
                return i.getUTCDate();
            });
            this.updateRanges();
        },
        updateRanges: function(){
            var range = $.map(this.dates, function(d){
                return d.valueOf();
            });
            $.each(this.pickers, function(i, p){
                p.setRange(range);
            });
        },
        dateUpdated: function(e){
            // `this.updating` is a workaround for preventing infinite recursion
            // between `changeDate` triggering and `setUTCDate` calling.  Until
            // there is a better mechanism.
            if (this.updating)
                return;
            this.updating = true;

            var dp = $(e.target).data('datepicker'),
                new_date = dp.getUTCDate(),
                i = $.inArray(e.target, this.inputs),
                l = this.inputs.length;
            if (i === -1)
                return;

            $.each(this.pickers, function(i, p){
                if (!p.getUTCDate())
                    p.setUTCDate(new_date);
            });

            if (new_date < this.dates[i]){
                // Date being moved earlier/left
                while (i >= 0 && new_date < this.dates[i]){
                    this.pickers[i--].setUTCDate(new_date);
                }
            }
            else if (new_date > this.dates[i]){
                // Date being moved later/right
                while (i < l && new_date > this.dates[i]){
                    this.pickers[i++].setUTCDate(new_date);
                }
            }
            this.updateDates();

            delete this.updating;
        },
        remove: function(){
            $.map(this.pickers, function(p){ p.remove(); });
            delete this.element.data().datepicker;
        }
    };

    function opts_from_el(el, prefix){
        // Derive options from element data-attrs
        var data = $(el).data(),
            out = {}, inkey,
            replace = new RegExp('^' + prefix.toLowerCase() + '([A-Z])');
        prefix = new RegExp('^' + prefix.toLowerCase());
        function re_lower(_,a){
            return a.toLowerCase();
        }
        for (var key in data)
            if (prefix.test(key)){
                inkey = key.replace(replace, re_lower);
                out[inkey] = data[key];
            }
        return out;
    }

    function opts_from_locale(lang){
        // Derive options from locale plugins
        var out = {};
        // Check if "de-DE" style date is available, if not language should
        // fallback to 2 letter code eg "de"
        if (!dates[lang]){
            lang = lang.split('-')[0];
            if (!dates[lang])
                return;
        }
        var d = dates[lang];
        $.each(locale_opts, function(i,k){
            if (k in d)
                out[k] = d[k];
        });
        return out;
    }

    var old = $.fn.datepicker;
    $.fn.datepicker = function(option){
        var args = Array.apply(null, arguments);
        args.shift();
        var internal_return;
        this.each(function(){
            var $this = $(this),
                data = $this.data('datepicker'),
                options = typeof option === 'object' && option;
            if (!data){
                var elopts = opts_from_el(this, 'date'),
                    // Preliminary otions
                    xopts = $.extend({}, defaults, elopts, options),
                    locopts = opts_from_locale(xopts.language),
                    // Options priority: js args, data-attrs, locales, defaults
                    opts = $.extend({}, defaults, locopts, elopts, options);
                if ($this.is('.input-daterange') || opts.inputs){
                    var ropts = {
                        inputs: opts.inputs || $this.find('input').toArray()
                    };
                    $this.data('datepicker', (data = new DateRangePicker(this, $.extend(opts, ropts))));
                }
                else {
                    $this.data('datepicker', (data = new Datepicker(this, opts)));
                }
            }
            if (typeof option === 'string' && typeof data[option] === 'function'){
                internal_return = data[option].apply(data, args);
                if (internal_return !== undefined)
                    return false;
            }
        });
        if (internal_return !== undefined)
            return internal_return;
        else
            return this;
    };

    var defaults = $.fn.datepicker.defaults = {
        autoclose: false,
        beforeShowDay: $.noop,
        calendarWeeks: false,
        clearBtn: false,
        daysOfWeekDisabled: [],
        endDate: Infinity,
        forceParse: true,
        format: 'mm/dd/yyyy',
        keyboardNavigation: true,
        language: 'en',
        minViewMode: 0,
        multidate: false,
        multidateSeparator: ',',
        orientation: "auto",
        rtl: false,
        startDate: -Infinity,
        startView: 0,
        todayBtn: false,
        todayHighlight: false,
        weekStart: 0
    };
    var locale_opts = $.fn.datepicker.locale_opts = [
        'format',
        'rtl',
        'weekStart'
    ];
    $.fn.datepicker.Constructor = Datepicker;
    var dates = $.fn.datepicker.dates = {
        en: {
            days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
            daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
            daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"],
            months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
            monthsShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
            today: "Today",
            clear: "Clear"
        }
    };

    var DPGlobal = {
        modes: [
            {
                clsName: 'days',
                navFnc: 'Month',
                navStep: 1
            },
            {
                clsName: 'months',
                navFnc: 'FullYear',
                navStep: 1
            },
            {
                clsName: 'years',
                navFnc: 'FullYear',
                navStep: 10
        }],
        isLeapYear: function(year){
            return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
        },
        getDaysInMonth: function(year, month){
            return [31, (DPGlobal.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
        },
        validParts: /dd?|DD?|mm?|MM?|yy(?:yy)?/g,
        nonpunctuation: /[^ -/:-@[u3400-u9fff-`{-~	

]+/g,
        parseFormat: function(format){
            // IE treats  as a string end in inputs (truncating the value),
            // so it's a bad format delimiter, anyway
            var separators = format.replace(this.validParts, '').split(''),
                parts = format.match(this.validParts);
            if (!separators || !separators.length || !parts || parts.length === 0){
                throw new Error("Invalid date format.");
            }
            return {separators: separators, parts: parts};
        },
        parseDate: function(date, format, language){
            if (!date)
                return undefined;
            if (date instanceof Date)
                return date;
            if (typeof format === 'string')
                format = DPGlobal.parseFormat(format);
            var part_re = /([-+]d+)([dmwy])/,
                parts = date.match(/([-+]d+)([dmwy])/g),
                part, dir, i;
            if (/^[-+]d+[dmwy]([s,]+[-+]d+[dmwy])*$/.test(date)){
                date = new Date();
                for (i=0; i < parts.length; i++){
                    part = part_re.exec(parts[i]);
                    dir = parseInt(part[1]);
                    switch (part[2]){
                        case 'd':
                            date.setUTCDate(date.getUTCDate() + dir);
                            break;
                        case 'm':
                            date = Datepicker.prototype.moveMonth.call(Datepicker.prototype, date, dir);
                            break;
                        case 'w':
                            date.setUTCDate(date.getUTCDate() + dir * 7);
                            break;
                        case 'y':
                            date = Datepicker.prototype.moveYear.call(Datepicker.prototype, date, dir);
                            break;
                    }
                }
                return UTCDate(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), 0, 0, 0);
            }
            parts = date && date.match(this.nonpunctuation) || [];
            date = new Date();
            var parsed = {},
                setters_order = ['yyyy', 'yy', 'M', 'MM', 'm', 'mm', 'd', 'dd'],
                setters_map = {
                    yyyy: function(d,v){
                        return d.setUTCFullYear(v);
                    },
                    yy: function(d,v){
                        return d.setUTCFullYear(2000+v);
                    },
                    m: function(d,v){
                        if (isNaN(d))
                            return d;
                        v -= 1;
                        while (v < 0) v += 12;
                        v %= 12;
                        d.setUTCMonth(v);
                        while (d.getUTCMonth() !== v)
                            d.setUTCDate(d.getUTCDate()-1);
                        return d;
                    },
                    d: function(d,v){
                        return d.setUTCDate(v);
                    }
                },
                val, filtered;
            setters_map['M'] = setters_map['MM'] = setters_map['mm'] = setters_map['m'];
            setters_map['dd'] = setters_map['d'];
            date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
            var fparts = format.parts.slice();
            // Remove noop parts
            if (parts.length !== fparts.length){
                fparts = $(fparts).filter(function(i,p){
                    return $.inArray(p, setters_order) !== -1;
                }).toArray();
            }
            // Process remainder
            function match_part(){
                var m = this.slice(0, parts[i].length),
                    p = parts[i].slice(0, m.length);
                return m === p;
            }
            if (parts.length === fparts.length){
                var cnt;
                for (i=0, cnt = fparts.length; i < cnt; i++){
                    val = parseInt(parts[i], 10);
                    part = fparts[i];
                    if (isNaN(val)){
                        switch (part){
                            case 'MM':
                                filtered = $(dates[language].months).filter(match_part);
                                val = $.inArray(filtered[0], dates[language].months) + 1;
                                break;
                            case 'M':
                                filtered = $(dates[language].monthsShort).filter(match_part);
                                val = $.inArray(filtered[0], dates[language].monthsShort) + 1;
                                break;
                        }
                    }
                    parsed[part] = val;
                }
                var _date, s;
                for (i=0; i < setters_order.length; i++){
                    s = setters_order[i];
                    if (s in parsed && !isNaN(parsed[s])){
                        _date = new Date(date);
                        setters_map[s](_date, parsed[s]);
                        if (!isNaN(_date))
                            date = _date;
                    }
                }
            }
            return date;
        },
        formatDate: function(date, format, language){
            if (!date)
                return '';
            if (typeof format === 'string')
                format = DPGlobal.parseFormat(format);
            var val = {
                d: date.getUTCDate(),
                D: dates[language].daysShort[date.getUTCDay()],
                DD: dates[language].days[date.getUTCDay()],
                m: date.getUTCMonth() + 1,
                M: dates[language].monthsShort[date.getUTCMonth()],
                MM: dates[language].months[date.getUTCMonth()],
                yy: date.getUTCFullYear().toString().substring(2),
                yyyy: date.getUTCFullYear()
            };
            val.dd = (val.d < 10 ? '0' : '') + val.d;
            val.mm = (val.m < 10 ? '0' : '') + val.m;
            date = [];
            var seps = $.extend([], format.separators);
            for (var i=0, cnt = format.parts.length; i <= cnt; i++){
                if (seps.length)
                    date.push(seps.shift());
                date.push(val[format.parts[i]]);
            }
            return date.join('');
        },
        headTemplate: '<thead>'+
                            '<tr>'+
                                '<th class="prev">&laquo;</th>'+
                                '<th colspan="5" class="datepicker-switch"></th>'+
                                '<th class="next">&raquo;</th>'+
                            '</tr>'+
                        '</thead>',
        contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>',
        footTemplate: '<tfoot>'+
                            '<tr>'+
                                '<th colspan="7" class="today"></th>'+
                            '</tr>'+
                            '<tr>'+
                                '<th colspan="7" class="clear"></th>'+
                            '</tr>'+
                        '</tfoot>'
    };
    DPGlobal.template = '<div class="datepicker">'+
                            '<div class="datepicker-days">'+
                                '<table class=" table-condensed">'+
                                    DPGlobal.headTemplate+
                                    '<tbody></tbody>'+
                                    DPGlobal.footTemplate+
                                '</table>'+
                            '</div>'+
                            '<div class="datepicker-months">'+
                                '<table class="table-condensed">'+
                                    DPGlobal.headTemplate+
                                    DPGlobal.contTemplate+
                                    DPGlobal.footTemplate+
                                '</table>'+
                            '</div>'+
                            '<div class="datepicker-years">'+
                                '<table class="table-condensed">'+
                                    DPGlobal.headTemplate+
                                    DPGlobal.contTemplate+
                                    DPGlobal.footTemplate+
                                '</table>'+
                            '</div>'+
                        '</div>';

    $.fn.datepicker.DPGlobal = DPGlobal;


    /* DATEPICKER NO CONFLICT
    * =================== */

    $.fn.datepicker.noConflict = function(){
        $.fn.datepicker = old;
        return this;
    };


    /* DATEPICKER DATA-API
    * ================== */

    $(document).on(
        'focus.datepicker.data-api click.datepicker.data-api',
        '[data-provide="datepicker"]',
        function(e){
            var $this = $(this);
            if ($this.data('datepicker'))
                return;
            e.preventDefault();
            // component click requires us to explicitly show it
            $this.datepicker('show');
        }
    );
    $(function(){
        $('[data-provide="datepicker-inline"]').datepicker();
    });

}(window.jQuery));

 总结：使用了标准清理模式，每次操作之后，工作单元对象都被销毁了，再次进行其他操作的时候，又会重新创建对象的实例。

完成之后项目的结构是：