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<?php |
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namespace mQueue\Controller\ActionHelper; |
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use Zend_Controller_Action_Helper_Abstract; |
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class CreateSorting extends Zend_Controller_Action_Helper_Abstract |
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{ |
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/** |
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* Initialize the view for sorting based on $sortParameterName and store/retrieve values from session |
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* It will look for parameter "{name}Key" and "{name}Order" in request. |
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* It will add variables to the view: |
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* - sortParameterName |
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* - sortSelectedKey |
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* - sortSelectedOrder |
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* |
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* @param string $sortParameterName used to look for parameters in request and as key in $_SESSION |
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* @param array $allowedKeys |
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* |
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* @return string similar to 'name DESC' |
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*/ |
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public function createSorting($sortParameterName, array $allowedKeys) |
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{ |
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$sortOrderParameterName = $sortParameterName . 'Order'; |
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$key = $this->getRequest()->getParam($sortParameterName); |
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$order = $this->getRequest()->getParam($sortOrderParameterName); |
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$view = $this->getActionController()->view; |
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$view->sortParameterName = $sortParameterName; |
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$view->sortSelectedKey = $key; |
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$view->sortSelectedOrder = $order; |
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if (is_array($view->permanentParams)) { |
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$view->permanentParams[$sortParameterName] = $key; |
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$view->permanentParams[$sortOrderParameterName] = $order; |
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} |
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return self::getSorting($key, $order, $allowedKeys); |
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} |
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/** |
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* Returns a valid SQL sorting snippet |
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* |
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* @param string $key |
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* @param string $order |
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* @param array $allowedKeys |
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* |
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* @return string similar to 'name DESC' |
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*/ |
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private static function getSorting($key, $order, array $allowedKeys) |
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{ |
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if (!in_array($key, $allowedKeys)) { |
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$key = reset($allowedKeys); |
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} |
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$order = strcasecmp($order, 'desc') == 0 ? 'DESC' : 'ASC'; |
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return $key . ' ' . $order; |
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} |
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/** |
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* Strategy pattern: call helper as broker method |
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* |
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* @param string $sortParameterName used to look for parameters in request and as key in $_SESSION |
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* @param array $allowedKeys |
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* |
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* @return string similar to 'name DESC' |
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*/ |
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public function direct($sortParameterName, array $allowedKeys) |
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{ |
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return $this->createSorting($sortParameterName, $allowedKeys); |
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} |
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} |
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PowerKiKi /
mqueue
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