forked from PeoplePerHour/MongoYii
/
EMongoDataProvider.php
179 lines (161 loc) · 4.92 KB
/
EMongoDataProvider.php
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<?php
/**
* EMongoDataProvider
*
* A data Provider helper for interacting with the EMongoCursor
*/
class EMongoDataProvider extends CActiveDataProvider
{
/**
* The primary ActiveRecord class name. The {@link getData()} method
* will return a list of objects of this class.
* @var string
*/
public $modelClass;
/**
* The AR finder instance (eg <code>Post::model()</code>).
* This property can be set by passing the finder instance as the first parameter
* to the constructor. For example, <code>Post::model()->published()</code>.
* @var EMongoModel
*/
public $model;
/**
* The name of key attribute for {@link modelClass}. If not set,
* it means the primary key of the corresponding database table will be used.
* @var string
*/
public $keyAttribute = '_id';
/**
* @var array The criteria array
*/
private $_criteria;
/**
* The internal MongoDB cursor as a MongoCursor instance
* @var EMongoCursor|MongoCursor
*/
private $_cursor;
/**
* @var EMongoSort
*/
private $_sort;
/**
* Creates the EMongoDataProvider instance
* @param string|EMongoDocument $modelClass
* @param array $config
*/
public function __construct($modelClass, $config = array())
{
if(is_string($modelClass)){
$this->modelClass = $modelClass;
$this->model = EMongoDocument::model($this->modelClass);
}elseif($modelClass instanceof EMongoDocument){
$this->modelClass = get_class($modelClass);
$this->model = $modelClass;
}
$this->setId($this->modelClass);
foreach($config as $key => $value){
$this->$key = $value;
}
}
/**
* @see CActiveDataProvider::getCriteria()
* @return array
*/
public function getCriteria()
{
return $this->_criteria;
}
/**
* @see CActiveDataProvider::setCriteria()
* @param array|EMongoCriteria $value
*/
public function setCriteria($value)
{
if($value instanceof EMongoCriteria){
$this->_criteria = $value->toArray();
}
if(is_array($value)){
$this->_criteria = $value;
}
}
/**
* @see CActiveDataProvider::fetchData()
* @return array
*/
public function fetchData()
{
$criteria = $this->getCriteria();
// I have not refactored this line considering that the condition may have changed from total item count to here, maybe.
$this->_cursor = $this->model->find(
isset($criteria['condition']) && is_array($criteria['condition']) ? $criteria['condition'] : array(),
isset($criteria['project']) && !empty($criteria['project']) ? $criteria['project'] : array()
);
// If we have sort and limit and skip setup within the incoming criteria let's set it
if(isset($criteria['sort']) && is_array($criteria['sort'])){
$this->_cursor->sort($criteria['sort']);
}
if(isset($criteria['skip']) && is_int($criteria['skip'])){
$this->_cursor->skip($criteria['skip']);
}
if(isset($criteria['limit']) && is_int($criteria['limit'])){
$this->_cursor->limit($criteria['limit']);
}
if(isset($criteria['hint']) && (is_array($criteria['hint']) || is_string($criteria['hint']))){
$this->_cursor->hint($criteria['hint']);
}
if(($pagination = $this->getPagination()) !== false){
$pagination->setItemCount($this->getTotalItemCount());
$this->_cursor->limit($pagination->getLimit());
$this->_cursor->skip($pagination->getOffset());
}
if(($sort = $this->getSort()) !== false){
$sort = $sort->getOrderBy();
if(count($sort) > 0){
$this->_cursor->sort($sort);
}
}
return iterator_to_array($this->_cursor, false);
}
/**
* @see CActiveDataProvider::fetchKeys()
* @return array
*/
public function fetchKeys()
{
$keys = array();
foreach($this->getData() as $i => $data){
$key = $this->keyAttribute === null ? $data->{$data->primaryKey()} : $data->{$this->keyAttribute};
$keys[$i] = is_array($key) ? implode(',', $key) : $key;
}
return $keys;
}
/**
* @see CActiveDataProvider::calculateTotalItemCount()
* @return int
*/
public function calculateTotalItemCount()
{
if(!$this->_cursor){
$criteria = $this->getCriteria();
$this->_cursor = $this->model->find(isset($criteria['condition']) && is_array($criteria['condition']) ? $criteria['condition'] : array());
}
return $this->_cursor->count();
}
/**
* Returns the sort object. We don't use the newer getSort function because it does not have the same functionality
* between 1.1.10 and 1.1.13, the functionality we need is actually in 1.1.13 only
* @param string $className
* @return CSort|EMongoSort|false - the sorting object. If this is false, it means the sorting is disabled.
*/
public function getSort($className = 'EMongoSort')
{
if($this->_sort === null){
$this->_sort = new $className;
if(($id = $this->getId()) != ''){
$this->_sort->sortVar = $id . '_sort';
}
$this->_sort->modelClass = $this->modelClass;
}
return $this->_sort;
}
}