Maslosoft Mangan API
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/**
* This software package is licensed under AGPL or Commercial license.
*
* @package maslosoft/mangan
* @licence AGPL or Commercial
* @copyright Copyright (c) Piotr Masełkowski <pmaselkowski@gmail.com>
* @copyright Copyright (c) Maslosoft
* @copyright Copyright (c) Others as mentioned in code
* @link https://maslosoft.com/mangan/
*/
namespace Maslosoft\Mangan\Traits;
use Maslosoft\Addendum\Interfaces\AnnotatedInterface;
use Maslosoft\Mangan\Cursor;
use Maslosoft\Mangan\Finder;
use Maslosoft\Mangan\Interfaces\CriteriaInterface;
use Maslosoft\Mangan\Interfaces\FinderInterface;
/**
* Finder trait contains implementation of `FinderInterface`, and it forwards
* them to concrete Finder class. Finder used by this trait
* can be defined via Finder annotation.
*
* This trait could be used as a part of active document class.
*
* @see FinderInterface
* @author Piotr Maselkowski <pmaselkowski at gmail.com>
*/
trait FinderTrait
{
/**
* Finder
* @var Finder
*/
private $_finder = null;
/**
* Finds a single Document with the specified condition.
*
* @param array|CriteriaInterface $criteria query criteria.
* @return AnnotatedInterface|static|null
* @Ignored
*/
public function find($criteria = null)
{
return $this->_getFinder()->find($criteria);
}
/**
* Finds document with the specified primary key. Primary key by default
* is defined by `_id` field. But could be any other. For simple (one column)
* keys use it's value.
*
* For composite use key-value with column names as keys
* and values for values.
*
* Example for simple pk:
* ```php
* $pk = '51b616fcc0986e30026d0748'
* ```
*
* Composite pk:
* ```php
* $pk = [
* 'mainPk' => 1,
* 'secondaryPk' => 2
* ];
* ```
*
* @param mixed $pk primary key value. Use array for composite key.
* @param array|CriteriaInterface $criteria
* @return AnnotatedInterface|static|null
* @Ignored
*/
public function findByPk($pk, $criteria = null)
{
return $this->_getFinder()->findByPk($pk, $criteria);
}
/**
* Finds document with the specified attributes.
* Attributes should be specified as key-value pairs.
* This allows easier syntax for simple queries.
*
* Example:
* ```php
* $attributes = [
* 'name' => 'John',
* 'title' => 'dr'
* ];
* ```
*
* @param mixed[] Array of stributes and values in form of ['attributeName' => 'value']
* @return AnnotatedInterface|static|null
* @Ignored
*/
public function findByAttributes(array $attributes)
{
return $this->_getFinder()->findByAttributes($attributes);
}
/**
* Finds all documents satisfying the specified condition.
*
* @param array|CriteriaInterface $criteria query criteria.
* @return AnnotatedInterface[]|static[]|Cursor
* @Ignored
*/
public function findAll($criteria = null)
{
return $this->_getFinder()->findAll($criteria);
}
/**
* Finds all documents with the specified attributes.
*
* @param mixed[] Array of stributes and values in form of ['attributeName' => 'value']
* @return AnnotatedInterface[]|static[]|Cursor
* @Ignored
*/
public function findAllByAttributes(array $attributes)
{
return $this->_getFinder()->findAllByAttributes($attributes);
}
/**
* Finds all documents with the specified primary keys.
* In MongoDB world every document has '_id' unique field, so with this method that
* field is in use as PK by default.
* See {@link find()} for detailed explanation about $condition.
*
* @param mixed $pk primary key value(s). Use array for multiple primary keys. For composite key, each key value must be an array (column name=>column value).
* @param array|CriteriaInterface $criteria query criteria.
* @return AnnotatedInterface[]|static[]|Cursor
* @Ignored
*/
public function findAllByPk($pk, $criteria = null)
{
return $this->_getFinder()->findAllByPk($pk, $criteria);
}
/**
* Counts all documents satisfying the specified condition.
*
* @param array|CriteriaInterface $criteria query criteria.
* @return int
* @Ignored
*/
public function count($criteria = null)
{
return $this->_getFinder()->count($criteria);
}
/**
* Counts all documents found by attribute values.
*
* Example:
* ```php
* $attributes = [
* 'name' => 'John',
* 'title' => 'dr'
* ];
* ```
*
* @param mixed[] Array of attributes and values in form of ['attributeName' => 'value']
* @return int
* @Ignored
*/
public function countByAttributes(array $attributes)
{
return $this->_getFinder()->countByAttributes($attributes);
}
/**
* Checks whether there is document satisfying the specified condition.
*
* @param CriteriaInterface $criteria
* @return bool
* @Ignored
*/
public function exists(CriteriaInterface $criteria = null)
{
return $this->_getFinder()->exists($criteria);
}
/**
* Whenever to use cursor
*
* @param boolean $useCursor
* @return FinderInterface
* @Ignored
*/
public function withCursor($useCursor = true)
{
return $this->_getFinder()->withCursor($useCursor);
}
/**
* Get finder instance
* @return FinderInterface
*/
private function _getFinder()
{
if (null === $this->_finder)
{
assert($this instanceof AnnotatedInterface, sprintf('Trait `%s` can be used only on `%s` instances', __CLASS__, AnnotatedInterface::class));
$this->_finder = Finder::create($this);
}
return $this->_finder;
}
}
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