Fixing some bugs with credential constraining.

src/Illuminate/Auth/DatabaseUserProvider.php

@@ -72,7 +72,7 @@ public function retrieveByCredentials(array $credentials)
 
 		foreach ($credentials as $key => $value)
 		{
-			$query->where($key, $value);
+			if ( ! str_contains($key, 'password')) $query->where($key, $value);
 		}
 
 		// Now we are ready to execute the query to see if we have an user matching

src/Illuminate/Auth/EloquentUserProvider.php

@@ -57,7 +57,7 @@ public function retrieveByCredentials(array $credentials)
 
 		foreach ($credentials as $key => $value)
 		{
-			$query->where($key, $value);
+			if ( ! str_contains($key, 'password')) $query->where($key, $value);
 		}
 
 		return $query->first();

tests/DatabaseUserProviderTest.php

@@ -46,7 +46,7 @@ public function testRetrieveByCredentialsReturnsUserWhenUserIsFound()
 		$conn->shouldReceive('first')->once()->andReturn(array('id' => 1, 'name' => 'taylor'));
 		$hasher = m::mock('Illuminate\Hashing\HasherInterface');
 		$provider = new Illuminate\Auth\DatabaseUserProvider($conn, $hasher, 'foo');
-		$user = $provider->retrieveByCredentials(array('username' => 'dayle'));
+		$user = $provider->retrieveByCredentials(array('username' => 'dayle', 'password' => 'foo'));
 
 		$this->assertInstanceOf('Illuminate\Auth\GenericUser', $user);
 		$this->assertEquals(1, $user->getIdentifier());

tests/EloquentUserProviderTest.php

@@ -31,7 +31,7 @@ public function testRetrieveByCredentialsReturnsUser()
 		$mock->shouldReceive('where')->once()->with('username', 'dayle');
 		$mock->shouldReceive('first')->once()->andReturn('bar');
 		$provider->expects($this->once())->method('createModel')->will($this->returnValue($mock));
-		$user = $provider->retrieveByCredentials(array('username' => 'dayle'));
+		$user = $provider->retrieveByCredentials(array('username' => 'dayle', 'password' => 'foo'));
 
 		$this->assertEquals('bar', $user);
 	}