• Laravel MongoDB


    Laravel MongoDB

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    This package adds functionalities to the Eloquent model and Query builder for MongoDB, using the original Laravel API. This library extends the original Laravel classes, so it uses exactly the same methods.

    Installation

    Make sure you have the MongoDB PHP driver installed. You can find installation instructions at http://php.net/manual/en/mongodb.installation.php

    Laravel version Compatibility

    Laravel Package
    4.2.x 2.0.x
    5.0.x 2.1.x
    5.1.x 2.2.x or 3.0.x
    5.2.x 2.3.x or 3.0.x
    5.3.x 3.1.x or 3.2.x
    5.4.x 3.2.x
    5.5.x 3.3.x
    5.6.x 3.4.x
    5.7.x 3.4.x
    5.8.x 3.5.x
    6.x 3.6.x
    7.x 3.7.x

    Install the package via Composer:

    $ composer require jenssegers/mongodb
    

    Laravel

    In case your Laravel version does NOT autoload the packages, add the service provider to config/app.php:

    JenssegersMongodbMongodbServiceProvider::class,
    

    Lumen

    For usage with Lumen, add the service provider in bootstrap/app.php. In this file, you will also need to enable Eloquent. You must however ensure that your call to $app->withEloquent(); is below where you have registered the MongodbServiceProvider:

    $app->register(JenssegersMongodbMongodbServiceProvider::class);
    
    $app->withEloquent();
    

    The service provider will register a MongoDB database extension with the original database manager. There is no need to register additional facades or objects.

    When using MongoDB connections, Laravel will automatically provide you with the corresponding MongoDB objects.

    Non-Laravel projects

    For usage outside Laravel, check out the Capsule manager and add:

    $capsule->getDatabaseManager()->extend('mongodb', function($config, $name) {
        $config['name'] = $name;
    
        return new JenssegersMongodbConnection($config);
    });
    

    Testing

    To run the test for this package, run:

    docker-compose up
    

    Database Testing

    To reset the database after each test, add:

    use IlluminateFoundationTestingDatabaseMigrations;
    

    Also inside each test classes, add:

    use DatabaseMigrations;
    

    Keep in mind that these traits are not yet supported:

    • use Database Transactions;
    • use RefreshDatabase;

    Configuration

    You can use MongoDB either as the main database, either as a side database. To do so, add a new mongodb connection to config/database.php:

    'mongodb' => [
        'driver' => 'mongodb',
        'host' => env('DB_HOST', '127.0.0.1'),
        'port' => env('DB_PORT', 27017),
        'database' => env('DB_DATABASE', 'homestead'),
        'username' => env('DB_USERNAME', 'homestead'),
        'password' => env('DB_PASSWORD', 'secret'),
        'options' => [
            // here you can pass more settings to the Mongo Driver Manager
            // see https://www.php.net/manual/en/mongodb-driver-manager.construct.php under "Uri Options" for a list of complete parameters that you can use
    
            'database' => env('DB_AUTHENTICATION_DATABASE', 'admin'), // required with Mongo 3+
        ],
    ],
    

    For multiple servers or replica set configurations, set the host to an array and specify each server host:

    'mongodb' => [
        'driver' => 'mongodb',
        'host' => ['server1', 'server2', ...],
        ...
        'options' => [
            'replicaSet' => 'rs0',
        ],
    ],
    

    If you wish to use a connection string instead of full key-value params, you can set it so. Check the documentation on MongoDB's URI format: https://docs.mongodb.com/manual/reference/connection-string/

    'mongodb' => [
        'driver' => 'mongodb',
        'dsn' => env('DB_DSN'),
        'database' => env('DB_DATABASE', 'homestead'),
    ],
    

    Eloquent

    Extending the base model

    This package includes a MongoDB enabled Eloquent class that you can use to define models for corresponding collections.

    use JenssegersMongodbEloquentModel;
    
    class Book extends Model
    {
        //
    }
    

    Just like a normal model, the MongoDB model class will know which collection to use based on the model name. For Book, the collection books will be used.

    To change the collection, pass the $collection property:

    use JenssegersMongodbEloquentModel;
    
    class Book extends Model
    {
        protected $collection = 'my_books_collection';
    }
    

    NOTE: MongoDB documents are automatically stored with a unique ID that is stored in the _id property. If you wish to use your own ID, substitute the $primaryKey property and set it to your own primary key attribute name.

    use JenssegersMongodbEloquentModel;
    
    class Book extends Model
    {
        protected $primaryKey = 'id';
    }
    
    // Mongo will also create _id, but the 'id' property will be used for primary key actions like find().
    Book::create(['id' => 1, 'title' => 'The Fault in Our Stars']);
    

    Likewise, you may define a connection property to override the name of the database connection that should be used when utilizing the model.

    use JenssegersMongodbEloquentModel;
    
    class Book extends Model
    {
        protected $connection = 'mongodb';
    }
    

    Extending the Authenticable base model

    This package includes a MongoDB Authenticatable Eloquent class JenssegersMongodbAuthUser that you can use to replace the default Authenticatable class IlluminateFoundationAuthUser for your User model.

    use JenssegersMongodbAuthUser as Authenticatable;
    
    class User extends Authenticatable
    {
    
    }
    

    Soft Deletes

    When soft deleting a model, it is not actually removed from your database. Instead, a deleted_at timestamp is set on the record.

    To enable soft deletes for a model, apply the JenssegersMongodbEloquentSoftDeletes Trait to the model:

    use JenssegersMongodbEloquentSoftDeletes;
    
    class User extends Model
    {
        use SoftDeletes;
    
        protected $dates = ['deleted_at'];
    }
    

    For more information check Laravel Docs about Soft Deleting.

    Guarding attributes

    When choosing between guarding attributes or marking some as fillable, Taylor Otwell prefers the fillable route.
    This is in light of recent security issues described here.

    Keep in mind guarding still works, but you may experience unexpected behavior.

    Dates

    Eloquent allows you to work with Carbon or DateTime objects instead of MongoDate objects. Internally, these dates will be converted to MongoDate objects when saved to the database.

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        protected $dates = ['birthday'];
    }
    

    This allows you to execute queries like this:

    $users = User::where(
        'birthday', '>',
        new DateTime('-18 years')
    )->get();
    

    Basic Usage

    Retrieving all models

    $users = User::all();
    

    Retrieving a record by primary key

    $user = User::find('517c43667db388101e00000f');
    

    Where

    $posts =
        Post::where('author.name', 'John')
            ->take(10)
            ->get();
    

    OR Statements

    $posts =
        Post::where('votes', '>', 0)
            ->orWhere('is_approved', true)
            ->get();
    

    AND statements

    $users =
        User::where('age', '>', 18)
            ->where('name', '!=', 'John')
            ->get();
    

    whereIn

    $users = User::whereIn('age', [16, 18, 20])->get();
    

    When using whereNotIn objects will be returned if the field is non-existent. Combine with whereNotNull('age') to leave out those documents.

    whereBetween

    $posts = Post::whereBetween('votes', [1, 100])->get();
    

    whereNull

    $users = User::whereNull('age')->get();
    

    Advanced wheres

    $users =
        User::where('name', 'John')
            ->orWhere(function ($query) {
                return $query
                    ->where('votes', '>', 100)
                    ->where('title', '<>', 'Admin');
            })->get();
    

    orderBy

    $users = User::orderBy('age', 'desc')->get();
    

    Offset & Limit (skip & take)

    $users =
        User::skip(10)
            ->take(5)
            ->get();
    

    groupBy

    Selected columns that are not grouped will be aggregated with the $last function.

    $users =
        Users::groupBy('title')
            ->get(['title', 'name']);
    

    Distinct

    Distinct requires a field for which to return the distinct values.

    $users = User::distinct()->get(['name']);
    
    // Equivalent to:
    $users = User::distinct('name')->get();
    

    Distinct can be combined with where:

    $users =
        User::where('active', true)
            ->distinct('name')
            ->get();
    

    Like

    $spamComments = Comment::where('body', 'like', '%spam%')->get();
    

    Aggregation

    Aggregations are only available for MongoDB versions greater than 2.2.x

    $total = Product::count();
    $price = Product::max('price');
    $price = Product::min('price');
    $price = Product::avg('price');
    $total = Product::sum('price');
    

    Aggregations can be combined with where:

    $sold = Orders::where('sold', true)->sum('price');
    

    Aggregations can be also used on sub-documents:

    $total = Order::max('suborder.price');
    

    NOTE: This aggregation only works with single sub-documents (like EmbedsOne) not subdocument arrays (like EmbedsMany).

    Incrementing/Decrementing the value of a column

    Perform increments or decrements (default 1) on specified attributes:

    Cat::where('name', 'Kitty')->increment('age');
    
    Car::where('name', 'Toyota')->decrement('weight', 50);
    

    The number of updated objects is returned:

    $count = User::increment('age');
    

    You may also specify additional columns to update:

    Cat::where('age', 3)
        ->increment('age', 1, ['group' => 'Kitty Club']);
    
    Car::where('weight', 300)
        ->decrement('weight', 100, ['latest_change' => 'carbon fiber']);
    

    MongoDB-specific operators

    Exists

    Matches documents that have the specified field.

    User::where('age', 'exists', true)->get();
    

    All

    Matches arrays that contain all elements specified in the query.

    User::where('roles', 'all', ['moderator', 'author'])->get();
    

    Size

    Selects documents if the array field is a specified size.

    Post::where('tags', 'size', 3)->get();
    

    Regex

    Selects documents where values match a specified regular expression.

    use MongoDBBSONRegex;
    
    User::where('name', 'regex', new Regex('.*doe', 'i'))->get();
    

    NOTE: you can also use the Laravel regexp operations. These are a bit more flexible and will automatically convert your regular expression string to a MongoDBBSONRegex object.

    User::where('name', 'regexp', '/.*doe/i')->get();
    

    The inverse of regexp:

    User::where('name', 'not regexp', '/.*doe/i')->get();
    

    Type

    Selects documents if a field is of the specified type. For more information check: http://docs.mongodb.org/manual/reference/operator/query/type/#op._S_type

    User::where('age', 'type', 2)->get();
    

    Mod

    Performs a modulo operation on the value of a field and selects documents with a specified result.

    User::where('age', 'mod', [10, 0])->get();
    

    MongoDB-specific Geo operations

    Near

    $bars = Bar::where('location', 'near', [
        '$geometry' => [
            'type' => 'Point',
            'coordinates' => [
                -0.1367563, // longitude
                51.5100913, // latitude
            ],
        ],
        '$maxDistance' => 50,
    ])->get();
    

    GeoWithin

    $bars = Bar::where('location', 'geoWithin', [
        '$geometry' => [
            'type' => 'Polygon',
            'coordinates' => [
                [
                    [-0.1450383, 51.5069158],
                    [-0.1367563, 51.5100913],
                    [-0.1270247, 51.5013233],
                    [-0.1450383, 51.5069158],
                ],
            ],
        ],
    ])->get();
    

    GeoIntersects

    $bars = Bar::where('location', 'geoIntersects', [
        '$geometry' => [
            'type' => 'LineString',
            'coordinates' => [
                [-0.144044, 51.515215],
                [-0.129545, 51.507864],
            ],
        ],
    ])->get();
    

    Inserts, updates and deletes

    Inserting, updating and deleting records works just like the original Eloquent. Please check Laravel Docs' Eloquent section.

    Here, only the MongoDB-specific operations are specified.

    MongoDB specific operations

    Raw Expressions

    These expressions will be injected directly into the query.

    User::whereRaw([
        'age' => ['$gt' => 30, '$lt' => 40],
    ])->get();
    

    You can also perform raw expressions on the internal MongoCollection object. If this is executed on the model class, it will return a collection of models.

    If this is executed on the query builder, it will return the original response.

    Cursor timeout

    To prevent MongoCursorTimeout exceptions, you can manually set a timeout value that will be applied to the cursor:

    DB::collection('users')->timeout(-1)->get();
    

    Upsert

    Update or insert a document. Additional options for the update method are passed directly to the native update method.

    // Query Builder
    DB::collection('users')
        ->where('name', 'John')
        ->update($data, ['upsert' => true]);
    
    // Eloquent
    $user->update($data, ['upsert' => true]);
    

    Projections

    You can apply projections to your queries using the project method.

    DB::collection('items')
        ->project(['tags' => ['$slice' => 1]])
        ->get();
    
    DB::collection('items')
        ->project(['tags' => ['$slice' => [3, 7]]])
        ->get();
    

    Projections with Pagination

    $limit = 25;
    $projections = ['id', 'name'];
    
    DB::collection('items')
        ->paginate($limit, $projections);
    

    Push

    Add items to an array.

    DB::collection('users')
        ->where('name', 'John')
        ->push('items', 'boots');
    
    $user->push('items', 'boots');
    
    DB::collection('users')
        ->where('name', 'John')
        ->push('messages', [
            'from' => 'Jane Doe',
            'message' => 'Hi John',
        ]);
    
    $user->push('messages', [
        'from' => 'Jane Doe',
        'message' => 'Hi John',
    ]);
    

    If you DON'T want duplicate items, set the third parameter to true:

    DB::collection('users')
        ->where('name', 'John')
        ->push('items', 'boots', true);
    
    $user->push('items', 'boots', true);
    

    Pull

    Remove an item from an array.

    DB::collection('users')
        ->where('name', 'John')
        ->pull('items', 'boots');
    
    $user->pull('items', 'boots');
    
    DB::collection('users')
        ->where('name', 'John')
        ->pull('messages', [
            'from' => 'Jane Doe',
            'message' => 'Hi John',
        ]);
    
    $user->pull('messages', [
        'from' => 'Jane Doe',
        'message' => 'Hi John',
    ]);
    

    Unset

    Remove one or more fields from a document.

    DB::collection('users')
        ->where('name', 'John')
        ->unset('note');
    
    $user->unset('note');
    

    Relationships

    Basic Usage

    The only available relationships are:

    • hasOne
    • hasMany
    • belongsTo
    • belongsToMany

    The MongoDB-specific relationships are:

    • embedsOne
    • embedsMany

    Here is a small example:

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        public function items()
        {
            return $this->hasMany(Item::class);
        }
    }
    

    The inverse relation of hasMany is belongsTo:

    use JenssegersMongodbEloquentModel;
    
    class Item extends Model
    {
        public function user()
        {
            return $this->belongsTo(User::class);
        }
    }
    

    belongsToMany and pivots

    The belongsToMany relation will not use a pivot "table" but will push id's to a related_ids attribute instead. This makes the second parameter for the belongsToMany method useless.

    If you want to define custom keys for your relation, set it to null:

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        public function groups()
        {
            return $this->belongsToMany(
                Group::class, null, 'user_ids', 'group_ids'
            );
        }
    }
    

    EmbedsMany Relationship

    If you want to embed models, rather than referencing them, you can use the embedsMany relation. This relation is similar to the hasMany relation but embeds the models inside the parent object.

    REMEMBER: These relations return Eloquent collections, they don't return query builder objects!

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        public function books()
        {
            return $this->embedsMany(Book::class);
        }
    }
    

    You can access the embedded models through the dynamic property:

    $user = User::first();
    
    foreach ($user->books as $book) {
        //
    }
    

    The inverse relation is automagically available. You don't need to define this reverse relation.

    $book = Book::first();
    
    $user = $book->user;
    

    Inserting and updating embedded models works similar to the hasMany relation:

    $book = $user->books()->save(
        new Book(['title' => 'A Game of Thrones'])
    );
    
    // or
    $book =
        $user->books()
             ->create(['title' => 'A Game of Thrones']);
    

    You can update embedded models using their save method (available since release 2.0.0):

    $book = $user->books()->first();
    
    $book->title = 'A Game of Thrones';
    $book->save();
    

    You can remove an embedded model by using the destroy method on the relation, or the delete method on the model (available since release 2.0.0):

    $book->delete();
    
    // Similar operation
    $user->books()->destroy($book);
    

    If you want to add or remove an embedded model, without touching the database, you can use the associate and dissociate methods.

    To eventually write the changes to the database, save the parent object:

    $user->books()->associate($book);
    $user->save();
    

    Like other relations, embedsMany assumes the local key of the relationship based on the model name. You can override the default local key by passing a second argument to the embedsMany method:

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        public function books()
        {
            return $this->embedsMany(Book::class, 'local_key');
        }
    }
    

    Embedded relations will return a Collection of embedded items instead of a query builder. Check out the available operations here: https://laravel.com/docs/master/collections

    EmbedsOne Relationship

    The embedsOne relation is similar to the embedsMany relation, but only embeds a single model.

    use JenssegersMongodbEloquentModel;
    
    class Book extends Model
    {
        public function author()
        {
            return $this->embedsOne(Author::class);
        }
    }
    

    You can access the embedded models through the dynamic property:

    $book = Book::first();
    $author = $book->author;
    

    Inserting and updating embedded models works similar to the hasOne relation:

    $author = $book->author()->save(
        new Author(['name' => 'John Doe'])
    );
    
    // Similar
    $author =
        $book->author()
             ->create(['name' => 'John Doe']);
    

    You can update the embedded model using the save method (available since release 2.0.0):

    $author = $book->author;
    
    $author->name = 'Jane Doe';
    $author->save();
    

    You can replace the embedded model with a new model like this:

    $newAuthor = new Author(['name' => 'Jane Doe']);
    
    $book->author()->save($newAuthor);
    

    Query Builder

    Basic Usage

    The database driver plugs right into the original query builder.

    When using MongoDB connections, you will be able to build fluent queries to perform database operations.

    For your convenience, there is a collection alias for table as well as some additional MongoDB specific operators/operations.

    $books = DB::collection('books')->get();
    
    $hungerGames =
        DB::collection('books')
            ->where('name', 'Hunger Games')
            ->first();
    

    If you are familiar with Eloquent Queries, there is the same functionality.

    Available operations

    To see the available operations, check the Eloquent section.

    Schema

    The database driver also has (limited) schema builder support. You can easily manipulate collections and set indexes.

    Basic Usage

    Schema::create('users', function ($collection) {
        $collection->index('name');
        $collection->unique('email');
    });
    

    You can also pass all the parameters specified in the MongoDB docs to the $options parameter:

    Schema::create('users', function ($collection) {
        $collection->index(
            'username',
            null,
            null,
            [
                'sparse' => true,
                'unique' => true,
                'background' => true,
            ]
        );
    });
    

    Inherited operations:

    • create and drop
    • collection
    • hasCollection
    • index and dropIndex (compound indexes supported as well)
    • unique

    MongoDB specific operations:

    • background
    • sparse
    • expire
    • geospatial

    All other (unsupported) operations are implemented as dummy pass-through methods because MongoDB does not use a predefined schema.

    Read more about the schema builder on Laravel Docs

    Geospatial indexes

    Geospatial indexes are handy for querying location-based documents.

    They come in two forms: 2d and 2dsphere. Use the schema builder to add these to a collection.

    Schema::create('bars', function ($collection) {
        $collection->geospatial('location', '2d');
    });
    

    To add a 2dsphere index:

    Schema::create('bars', function ($collection) {
        $collection->geospatial('location', '2dsphere');
    });
    

    Extending

    Cross-Database Relationships

    If you're using a hybrid MongoDB and SQL setup, you can define relationships across them.

    The model will automatically return a MongoDB-related or SQL-related relation based on the type of the related model.

    If you want this functionality to work both ways, your SQL-models will need to use the JenssegersMongodbEloquentHybridRelations trait.

    This functionality only works for hasOne, hasMany and belongsTo.

    The MySQL model should use the HybridRelations trait:

    use JenssegersMongodbEloquentHybridRelations;
    
    class User extends Model
    {
        use HybridRelations;
    
        protected $connection = 'mysql';
    
        public function messages()
        {
            return $this->hasMany(Message::class);
        }
    }
    

    Within your MongoDB model, you should define the relationship:

    use JenssegersMongodbEloquentModel;
    
    class Message extends Model
    {
        protected $connection = 'mongodb';
    
        public function user()
        {
            return $this->belongsTo(User::class);
        }
    }
    

    Authentication

    If you want to use Laravel's native Auth functionality, register this included service provider:

    JenssegersMongodbAuthPasswordResetServiceProvider::class,
    

    This service provider will slightly modify the internal DatabaseReminderRepository to add support for MongoDB based password reminders.

    If you don't use password reminders, you don't have to register this service provider and everything else should work just fine.

    Queues

    If you want to use MongoDB as your database backend, change the driver in config/queue.php:

    'connections' => [
        'database' => [
            'driver' => 'mongodb',
            // You can also specify your jobs specific database created on config/database.php
            'connection' => 'mongodb-job',
            'table' => 'jobs',
            'queue' => 'default',
            'expire' => 60,
        ],
    ],
    

    If you want to use MongoDB to handle failed jobs, change the database in config/queue.php:

    'failed' => [
        'driver' => 'mongodb',
        // You can also specify your jobs specific database created on config/database.php
        'database' => 'mongodb-job',
        'table' => 'failed_jobs',
    ],
    

    Laravel specific

    Add the service provider in config/app.php:

    JenssegersMongodbMongodbQueueServiceProvider::class,
    

    Lumen specific

    With Lumen, add the service provider in bootstrap/app.php. You must however ensure that you add the following after the MongodbServiceProvider registration.

    $app->make('queue');
    
    $app->register(JenssegersMongodbMongodbQueueServiceProvider::class);
    

    Upgrading

    Upgrading from version 2 to 3

    In this new major release which supports the new MongoDB PHP extension, we also moved the location of the Model class and replaced the MySQL model class with a trait.

    Please change all JenssegersMongodbModel references to JenssegersMongodbEloquentModel either at the top of your model files or your registered alias.

    use JenssegersMongodbEloquentModel;
    
    class User extends Model
    {
        //
    }
    

    If you are using hybrid relations, your MySQL classes should now extend the original Eloquent model class IlluminateDatabaseEloquentModel instead of the removed JenssegersEloquentModel.

    Instead use the new JenssegersMongodbEloquentHybridRelations trait. This should make things more clear as there is only one single model class in this package.

    use JenssegersMongodbEloquentHybridRelations;
    
    class User extends Model
    {
    
        use HybridRelations;
    
        protected $connection = 'mysql';
    }
    

    Embedded relations now return an IlluminateDatabaseEloquentCollection rather than a custom Collection class. If you were using one of the special methods that were available, convert them to Collection operations.

    $books = $user->books()->sortBy('title')->get();
    

    Security contact information

    To report a security vulnerability, follow these steps.

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  • 原文地址:https://www.cnblogs.com/niuben/p/13718141.html
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