• 8 stark组件 展示数据


    1、编辑按钮构建完成

    1、必备知识预习

      

     2、mark_safe模块:将html标签安全传输

     

    3、构造表单数据

     

    4、反向解析

    https://www.cnblogs.com/yuanchenqi/articles/7629939.html

     

     

    5、编辑按钮构造

     

    # -*- coding: utf-8 -*-
    # @Time    : 2018/08/17 0017 14:52
    # @Author  : Venicid
    
    from stark.service import stark
    from .models import *
    
    from django.utils.safestring import mark_safe
    from django.urls import reverse
    
    class AuthorConfig(stark.ModelStark):
    
        def edit(self,obj):
            # return mark_safe("<a>编辑</a>")
    
            # 方案1:固定url
            # return mark_safe("<a href=/stark/app01/userinfo/%s/change>编辑</a>")
    
            # 方案2:拼接url
            # return mark_safe("<a href='%s/change'>编辑</a>")
    
            # 方案3:反向解析
            model_name = self.model._meta.model_name
            app_label = self.model._meta.app_label
            _url = reverse("%s_%s_change"%(app_label,model_name),args=(obj.pk,))
            print("_url",_url)
            return mark_safe("<a href='%s'>编辑</a>"%_url)
    
        list_display = ['pk', 'name', 'age', edit]
    
    
    stark.site.register(Book)
    stark.site.register(Publish)
    stark.site.register(Author,AuthorConfig)
    stark.site.register(AuthorDetail)
    
    print(stark.site._registry)
    
    """
    {<class 'app01.models.Book'>: <stark.service.stark.ModelStark object at 0x0000003AA7439630>,
    <class 'app01.models.Publish'>: <stark.service.stark.ModelStark object at 0x0000003AA7439668>,
    <class 'app01.models.Author'>: <stark.service.stark.ModelStark object at 0x0000003AA74396A0>,
    <class 'app01.models.AuthorDetail'>: <stark.service.stark.ModelStark object at 0x0000003AA7439940>}
    """
    starkadmin.py
    # -*- coding: utf-8 -*-
    # @Time    : 2018/08/17 0017 14:46
    # @Author  : Venicid
    from django.conf.urls import url
    from django.shortcuts import HttpResponse,render
    
    
    class ModelStark(object):
        list_display = ["__str__"]  # 子类中没有,直接用父类自己的
    
        def __init__(self,model, site):
            self.model = model
            self.site = site
    
        def list_view(self, request):
            print(self.model)  # <class 'app01.models.Book'>  用户访问的模型表
            print('list_display',self.list_display)
    
            # 获取data_list
            data_list = self.model.objects.all()        # [obj1,obj2,...]
            new_data_list = []
            for obj in data_list:       # Book表模型,Author表模型
                temp = []
                for filed in self.list_display:     # ['name','age']
                    if callable(filed):                 # edit()  可调用的
                        val = filed(self,obj)           # 直接调用edit()函数
                    else:
                        val = getattr(obj,filed)       # 反射  obj是实例对象,name是方法
                    temp.append(val)
    
                new_data_list.append(temp)
    
            print('new_data_list',new_data_list)        # 构造数据  [['jack', 44], ['mark', 33]]
    
            return render(request,'list_view.html', locals())
    
    
        def add(self, request):
            return HttpResponse('add')
    
        def delete(self, request, id):
            return HttpResponse('delete')
    
        def change(self, request, id):
            return HttpResponse('change')
    
        def get_urls2(self):
            """构造 add/delete/change"""
            model_name = self.model._meta.model_name
            app_label = self.model._meta.app_label
    
            temp = []
            temp.append(url(r'^$', self.list_view, name='%s_%s_list'%(app_label,model_name)))
            temp.append(url(r'^add/', self.add, name='%s_%s_add'%(app_label,model_name)))
            temp.append(url(r'^(d+)/delete/', self.delete, name='%s_%s_delete'%(app_label,model_name)))
            temp.append(url(r'^(d+)/change/', self.change, name='%s_%s_change'%(app_label,model_name)))
    
            return temp
    
        @property
        def urls2(self):
    
            return self.get_urls2(), None, None
    
    
    class StarkSite(object):
        """site单例类"""
        def __init__(self):
            self._registry = {}
    
        def register(self,model, stark_class=None):
            """注册"""
            if not stark_class:
                stark_class = ModelStark
    
            self._registry[model] = stark_class(model,self)
    
        def get_urls(self):
            """构造一层urls app01/book"""
            temp = []
            for model, stark_class_obj in self._registry.items():
                print(model, 'stark_clas_obj', stark_class_obj)  # 不同的model模型表
                """
                 <class 'app01.models.UserInfo'> ----> <app01.starkadmin.UserConfig object at 0x00000072DDB65198>
                 <class 'app01.models.Book'> ----> <stark.service.stark.ModelStark object at 0x00000072DDB65240>
                 """
    
                app_label = model._meta.app_label     # app01
                model_name = model._meta.model_name   # book
                # temp.append(url(r'^%s/%s'%(app_label, model_name),([],None,None)))
                temp.append(url(r'^%s/%s/'%(app_label, model_name),stark_class_obj.urls2))
                """
                   path('app01/userinfo/',UserConfig(Userinfo,site).urls2),
                   path('app01/book/',ModelStark(Book,site).urls2),
                """
    
    
            return temp
    
        @property
        def urls(self):
    
            # return [],None,None
            return self.get_urls(),None,None
    
    site = StarkSite()   # 单例对象
    stark/service/stark.py

    2、构造表头,删除,checkbox,links编辑

    1、必备小知识

     

     2、list_display显示表头

     

    3、verbose_name显示中文

    4、list_display_links编辑link构造

    3、代码+总结

    1、总结

    完成
    (list_display)
    (list_display_links)

    1.根据str,拿字段对象,取中文
    val = self.model._meta.get_field(field).verbose_name

    2.模型名称,app名称
    model_name = self.model._meta.model_name
    app_lable = self.model._meta.app_label

    3.判断是否可调用
    if callable(field):
    val = field(self, header = True)

    4.字符串找对象得属性,反射
    val = getattr(data, field)

    5.返回标签
    return mark_safe("<input id='choice' type='checkbox'>")

    6.插入数组[]
    temp.append(ModelStark.checkbox)
    temp.extend(self.list_display)

    7.反向解析,含正则
    _url = reverse("%s_%s_delete" % (app_label, model_name), args=(obj.pk,))
    _url = reverse("%s_%s_add" % (app_label, model_name))

    8.复选框,全选/全不选
    $('#choice').click(function () {
    if($(this).prop('checked')){
    $('.choice_item').prop('checked',true)
    }else{
    $('.choice_item').prop('checked',false)
    }
    })

    2、starkadmin.py

    from stark.service import stark
    from .models import *
    
    
    class AuthorConfig(stark.ModelStark):
    
        list_display = ['nid', 'name', 'age']
        list_display_links = ['name','age']
    
    
    
    stark.site.register(Book)
    stark.site.register(Publish)
    stark.site.register(Author,AuthorConfig)
    stark.site.register(AuthorDetail)
    
    print(stark.site._registry)

    3、stark/server/stark.py

    # -*- coding: utf-8 -*-
    # @Time    : 2018/08/17 0017 14:46
    # @Author  : Venicid
    from django.conf.urls import url
    from django.shortcuts import HttpResponse,render
    
    from django.utils.safestring import mark_safe
    from django.urls import reverse
    
    
    class ModelStark(object):
        list_display = ["__str__"]  # 子类中没有,直接用父类自己的
        list_display_links = []
    
        def __init__(self,model, site):
            self.model = model
            self.site = site
    
        # 复选框,编辑,删除
        def checkbox(self,obj=None, header=False):
            if header:
                return mark_safe("<input id='choice' type='checkbox'>")
            return mark_safe("<input class='choice_item' type='checkbox'>")
    
    
        def edit(self,obj=None, header=False):
            if header:
                return "操作"
            # 方案1:固定url
            # return mark_safe("<a href=/stark/app01/userinfo/%s/change>编辑</a>")
            # 方案2:拼接url
            # return mark_safe("<a href='%s/change'>编辑</a>")
    
            # 方案3:反向解析
            model_name = self.model._meta.model_name
            app_label = self.model._meta.app_label
            _url = reverse("%s_%s_change"%(app_label,model_name),args=(obj.pk,))
            # print("_url",_url)
            return mark_safe("<a href='%s'>编辑</a>"%_url)
    
    
        def deletes(self,obj=None, header=False):
            if header:
                return "操作"
            model_name = self.model._meta.model_name
            app_label = self.model._meta.app_label
            _url = reverse("%s_%s_delete"%(app_label,model_name),args=(obj.pk,))
            return mark_safe("<a href='%s'>删除</a>"%_url)
    
    
        def new_list_play(self):
            """构建 ['checkbox','pk', 'name', 'age', edit,'delete']"""
            temp = []
            temp.append(ModelStark.checkbox)
            temp.extend(self.list_display)
            if not self.list_display_links:
                temp.append(ModelStark.edit)
            temp.append(ModelStark.deletes)
            return temp
    
        def list_view(self, request):
            print(self.model)  # <class 'app01.models.Book'>  用户访问的模型表
    
            # 构建表头
            header_list = []  # # header_list = ['选择','pk',...'操作','操作']
            for field in self.new_list_play():
                if callable(field):
                    # header_list.append(field.__name__)
                    val = field(self,header=True)
                    header_list.append(val)
                else:
                    if field == "__str__":
                        header_list.append(self.model._meta.model_name.upper())
                    else:
                        val = self.model._meta.get_field(field).verbose_name    # 中文名称
                        header_list.append(val)
    
            # 构建表单
            data_list = self.model.objects.all()        # [obj1,obj2,...]
            new_data_list = []
            for obj in data_list:                   # Book表模型,Author表模型
                temp = []
                for field in self.new_list_play():     # ['name','age']
                    if callable(field):                 # edit()  可调用的
                        val = field(self,obj)           # 直接调用edit()函数
                        print('val--------->',val)
                    else:
                        val = getattr(obj,field)       # 反射  obj是实例对象,name是方法
    
                        # list_display_links 按钮
                        if field in self.list_display_links:
                            model_name = self.model._meta.model_name
                            app_label = self.model._meta.app_label
                            _url = reverse("%s_%s_change" % (app_label, model_name), args=(obj.pk,))
                            # print(_url)
                            val = mark_safe("<a href='%s'>%s</a>"%(_url,field))
    
                    temp.append(val)
    
                new_data_list.append(temp)
    
            print('new_data_list',new_data_list)        # 构造数据  [['jack', 44], ['mark', 33]]
    
            return render(request,'list_view.html', locals())
    
    
        def add(self, request):
            return HttpResponse('add')
    
        def delete(self, request, id):
            return HttpResponse('delete')
    
        def change(self, request, id):
            return HttpResponse('change')
    
        def get_urls2(self):
            """构造 add/delete/change"""
            model_name = self.model._meta.model_name
            app_label = self.model._meta.app_label
    
            temp = []
            temp.append(url(r'^$', self.list_view, name='%s_%s_list'%(app_label,model_name)))
            temp.append(url(r'^add/', self.add, name='%s_%s_add'%(app_label,model_name)))
            temp.append(url(r'^(d+)/delete/', self.delete, name='%s_%s_delete'%(app_label,model_name)))
            temp.append(url(r'^(d+)/change/', self.change, name='%s_%s_change'%(app_label,model_name)))
    
            return temp
    
        @property
        def urls2(self):
    
            return self.get_urls2(), None, None
    
    
    class StarkSite(object):
        """site单例类"""
        def __init__(self):
            self._registry = {}
    
        def register(self,model, stark_class=None):
            """注册"""
            if not stark_class:
                stark_class = ModelStark
    
            self._registry[model] = stark_class(model,self)
    
        def get_urls(self):
            """构造一层urls app01/book"""
            temp = []
            for model, stark_class_obj in self._registry.items():
                print(model, 'stark_clas_obj', stark_class_obj)  # 不同的model模型表
                """
                 <class 'app01.models.UserInfo'> ----> <app01.starkadmin.UserConfig object at 0x00000072DDB65198>
                 <class 'app01.models.Book'> ----> <stark.service.stark.ModelStark object at 0x00000072DDB65240>
                 """
    
                app_label = model._meta.app_label     # app01
                model_name = model._meta.model_name   # book
                # temp.append(url(r'^%s/%s'%(app_label, model_name),([],None,None)))
                temp.append(url(r'^%s/%s/'%(app_label, model_name),stark_class_obj.urls2))
                """
                   path('app01/userinfo/',UserConfig(Userinfo,site).urls2),
                   path('app01/book/',ModelStark(Book,site).urls2),
                """
    
    
            return temp
    
        @property
        def urls(self):
    
            # return [],None,None
            return self.get_urls(),None,None
    
    site = StarkSite()   # 单例对象

    4、模板层

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <link rel="stylesheet" href="/static/bootstrap-3.3.7/css/bootstrap.css">
        <script src="/static/jQuery/jquery-3.2.1.min.js"></script>
    </head>
    <body>
    <h3>list页面</h3>
    <div class="container">
        <div class="row">
            <div class="col-md-9 col-lg-offset-1">
                <table class="table table-bordered table-striped">
                    <tr>
                        {% for header in header_list %}
                            <th>{{ header }}</th>
                        {% endfor %}
                    </tr>
    
                    {% for data in new_data_list %}
                        <tr>
                            {% for item in data %}
                                <td>{{ item }}</td>
                            {% endfor %}
    
                        </tr>
                    {% endfor %}
                </table>
            </div>
        </div>
    </div>
    
    <script type="text/javascript">
            $('#choice').click(function () {
                if ($(this).prop('checked')){   //对象自身属性中是否具有指定的属性
                    $('.choice_item').prop("checked",true)
                }else{
                    $('.choice_item').prop("checked",false)
                }
            })
    </script>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/venicid/p/9494696.html
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