Merge pull request #70 from DyeH/master

Many to Many relationships

.gitignore

@@ -4,4 +4,5 @@ phpunit.phar
 composer.phar
 composer.lock
 *.sublime-project
-*.sublime-workspace
\ No newline at end of file
+*.sublime-workspace
+*.project

src/Jenssegers/Mongodb/Model.php

@@ -7,6 +7,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 use Jenssegers\Mongodb\DatabaseManager as Resolver;
 use Jenssegers\Mongodb\Builder as QueryBuilder;
 use Jenssegers\Mongodb\Relations\BelongsTo;
+use Jenssegers\Mongodb\Relations\BelongsToMany;
 
 use Carbon\Carbon;
 use DateTime;
@@ -199,6 +200,43 @@ abstract class Model extends \Illuminate\Database\Eloquent\Model {
         return new BelongsTo($query, $this, $foreignKey, $otherKey, $relation);
     }
 
+	/**
+	 * Define a many-to-many relationship.
+	 *
+	 * @param  string  $related
+	 * @param  string  $table
+	 * @param  string  $foreignKey
+	 * @param  string  $otherKey
+	 * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+	 */
+	public function belongsToMany($related, $collection = null, $foreignKey = null, $otherKey = null)
+	{
+		$caller = $this->getBelongsToManyCaller();
+		
+		// First, we'll need to determine the foreign key and "other key" for the
+		// relationship. Once we have determined the keys we'll make the query
+		// instances as well as the relationship instances we need for this.
+		$foreignKey = $foreignKey ?: $this->getForeignKey() . 's';
+
+		$instance = new $related;
+		
+		$otherKey = $otherKey ?: $instance->getForeignKey() . 's';
+		// If no table name was provided, we can guess it by concatenating the two
+		// models using underscores in alphabetical order. The two model names
+		// are transformed to snake case from their default CamelCase also.
+		if (is_null($collection))
+		{
+			$collection = snake_case(str_plural(class_basename($related)));
+		}
+
+		// Now we're ready to create a new query builder for the related model and
+		// the relationship instances for the relation. The relations will set
+		// appropriate query constraint and entirely manages the hydrations.
+		$query = $instance->newQuery();
+
+		return new BelongsToMany($query, $this, $collection, $foreignKey, $otherKey, $caller['function']);
+	}
+
     /**
      * Get a new query builder instance for the connection.
      *
@@ -274,4 +312,4 @@ abstract class Model extends \Illuminate\Database\Eloquent\Model {
         return parent::__call($method, $parameters);
     }
 
-}
+}
\ No newline at end of file

tests/ModelTest.php

@@ -312,11 +312,14 @@ class ModelTest extends PHPUnit_Framework_TestCase {
 	public function testDates()
 	{
 		$user = User::create(array('name' => 'John Doe', 'birthday' => new DateTime('1980/1/1')));
+
 		$this->assertInstanceOf('Carbon\Carbon', $user->birthday);
 
 		$check = User::find($user->_id);
+
 		$this->assertInstanceOf('Carbon\Carbon', $check->birthday);
 		$this->assertEquals($user->birthday, $check->birthday);
+		
 
 		$user = User::where('birthday', '>', new DateTime('1975/1/1'))->first();
 		$this->assertEquals('John Doe', $user->name);

tests/models/Client.php

+<?php
+use Jenssegers\Mongodb\Model as Eloquent;
+
+class Client extends Eloquent {
+
+	protected $collection = 'clients';
+
+	protected static $unguarded = true;
+	
+	public function users()
+	{
+		return $this->belongsToMany('User');
+	}
+}
\ No newline at end of file

tests/models/User.php

@@ -7,13 +7,13 @@ use Illuminate\Auth\Reminders\RemindableInterface;
 
 class User extends Eloquent implements UserInterface, RemindableInterface {
 
-    protected $collection = 'users';
+	protected $collection = 'users';
+	
+	protected $dates = array('birthday');
+	
+	protected static $unguarded = true;
 
-    protected $dates = array('birthday');
-
-    protected static $unguarded = true;
-
-    public function books()
+	public function books()
     {
         return $this->hasMany('Book', 'author_id');
     }
@@ -27,6 +27,11 @@ class User extends Eloquent implements UserInterface, RemindableInterface {
     {
         return $this->hasOne('Role');
     }
+	
+	public function clients()
+	{
+		return $this->belongsToMany('Client');
+	}
 
     /**
      * Get the unique identifier for the user.
@@ -57,5 +62,4 @@ class User extends Eloquent implements UserInterface, RemindableInterface {
     {
         return $this->email;
     }
-
-}
+}
\ No newline at end of file