Sokil\Mongo\Collection::getDistinct PHP Method

Collection Class Documentation Usage Examples Of Sokil\Mongo\Collection::getDistinct Show file Open project: sokil/php-mongo

getDistinct() public method

Retrieve a list of distinct values for the given key across a collection.

public getDistinct ( string $selector, array \| callable \| Expression $expression = null ) : array
$selector	string	field selector
$expression	array \| callable \| Expression	expression to search documents
return	array	distinct values

    public function getDistinct($selector, $expression = null)
    {
        if ($expression) {
            return $this->getMongoCollection()->distinct($selector, Expression::convertToArray($expression));
        }
        return $this->getMongoCollection()->distinct($selector);
    }

Usage Example

Example #1

Show file

File: CollectionTest.php Project: sokil/php-mongo

 public function testGetDistinct_NoExpression()
 {
     $this->collection->createDocument(array('k' => array('f' => 'F1', 'kk' => 'A')))->save();
     $this->collection->createDocument(array('k' => array('f' => 'F1', 'kk' => 'A')))->save();
     $this->collection->createDocument(array('k' => array('f' => 'F1', 'kk' => 'B')))->save();
     $this->collection->createDocument(array('k' => array('f' => 'F2', 'kk' => 'C')))->save();
     // get distinct
     $distinctValues = $this->collection->getDistinct('k.kk');
     $this->assertEquals(array('A', 'B', 'C'), $distinctValues);
 }

Collection

__construct

__get

addDocumentToDocumentPool

addDocumentsToDocumentPool

aggregate

batchDelete

batchInsert

batchUpdate

clearDocumentPool

count

createAggregator