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<?php |
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/* |
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* This file is part of the PommProject/ModelManager package. |
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* |
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* (c) 2014 - 2015 Grégoire HUBERT <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace PommProject\ModelManager\Model; |
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use PommProject\Foundation\Inflector; |
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use PommProject\ModelManager\Exception\ModelException; |
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use PommProject\ModelManager\Model\FlexibleEntity\FlexibleContainer; |
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use PommProject\ModelManager\Model\FlexibleEntity\FlexibleEntityInterface; |
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/** |
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* FlexibleEntity |
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* |
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* Parent for entity classes. |
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* |
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* @abstract |
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* @package ModelManager |
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* @copyright 2014 - 2015 Grégoire HUBERT |
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* @author Grégoire HUBERT <[email protected]> |
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* @license MIT/X11 {@link http://opensource.org/licenses/mit-license.php} |
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*/ |
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abstract class FlexibleEntity extends FlexibleContainer implements \ArrayAccess |
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{ |
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public static $strict = true; |
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protected static $has_methods; |
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/** |
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* __construct |
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* |
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* Instantiate the entity and hydrate it with the given values. |
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* |
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* @access public |
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* @param array $values Optional starting values. |
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*/ |
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public function __construct(array $values = null) |
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{ |
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if ($values !== null) { |
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$this->hydrate($values); |
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} |
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} |
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/** |
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* get |
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* |
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* Returns the $var value |
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* |
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* @final |
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* @access public |
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* @param string|array $var Key(s) you want to retrieve value from. |
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* @throws ModelException if strict and the attribute does not exist. |
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* @return mixed |
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*/ |
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final public function get($var) |
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{ |
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if (is_scalar($var)) { |
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if ($this->has($var)) { |
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return $this->container[$var]; |
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} elseif (static::$strict === true) { |
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throw new ModelException(sprintf("No such key '%s'.", $var)); |
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} |
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} elseif (is_array($var)) { |
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return array_intersect_key($this->container, array_flip($var)); |
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} |
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} |
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/** |
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* has |
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* |
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* Returns true if the given key exists. |
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* |
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* @final |
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* @access public |
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* @param string $var |
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* @return boolean |
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*/ |
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final public function has($var) |
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{ |
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return isset($this->container[$var]) || array_key_exists($var, $this->container); |
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} |
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/** |
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* set |
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* |
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* Set a value in the var holder. |
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* |
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* @final |
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* @access public |
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* @param String $var Attribute name. |
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* @param Mixed $value Attribute value. |
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* @return FlexibleEntity $this |
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*/ |
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final public function set($var, $value) |
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{ |
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$this->container[$var] = $value; |
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$this->touch(); |
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$this->addModifiedColumn($var); |
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return $this; |
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} |
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/** |
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* add |
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* |
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* When the corresponding attribute is an array, call this method |
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* to set values. |
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* |
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* @access public |
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* @param string $var |
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* @param mixed $value |
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* @return FlexibleEntity $this |
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* @throws ModelException |
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*/ |
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public function add($var, $value) |
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{ |
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if ($this->has($var)) { |
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if (is_array($this->container[$var])) { |
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$this->container[$var][] = $value; |
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} else { |
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throw new ModelException(sprintf("Field '%s' exists and is not an array.", $var)); |
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} |
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} else { |
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$this->container[$var] = [$value]; |
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} |
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$this->touch(); |
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$this->addModifiedColumn($var); |
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return $this; |
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} |
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/** |
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* clear |
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* |
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* Drop an attribute from the var holder. |
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* |
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* @final |
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* @access public |
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* @param String $offset Attribute name. |
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* @return FlexibleEntity $this |
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*/ |
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final public function clear($offset) |
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{ |
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if ($this->has($offset)) { |
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unset($this->container[$offset]); |
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$this->touch(); |
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$this->removeModifiedColumn($offset); |
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} |
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return $this; |
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} |
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/** |
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* __call |
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* |
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* Allows dynamic methods getXxx, setXxx, hasXxx, addXxx or clearXxx. |
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* |
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* @access public |
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* @throws ModelException if method does not exist. |
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* @param mixed $method |
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* @param mixed $arguments |
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* @return mixed |
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*/ |
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public function __call($method, $arguments) |
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{ |
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list($operation, $attribute) = $this->extractMethodName($method); |
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switch ($operation) { |
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case 'set': |
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return $this->set($attribute, $arguments[0]); |
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case 'get': |
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return $this->get($attribute); |
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case 'add': |
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return $this->add($attribute, $arguments[0]); |
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case 'has': |
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return $this->has($attribute); |
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case 'clear': |
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return $this->clear($attribute); |
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default: |
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throw new ModelException(sprintf('No such method "%s:%s()"', get_class($this), $method)); |
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} |
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} |
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/** |
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* convert |
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* |
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* Make all keys lowercase and hydrate the object. |
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* |
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* @access public |
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* @param Array $values |
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* @return FlexibleEntity |
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*/ |
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public function convert(array $values) |
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{ |
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$tmp = []; |
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foreach ($values as $key => $value) { |
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$tmp[strtolower($key)] = $value; |
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} |
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return $this->hydrate($tmp); |
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} |
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/** |
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* extract |
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* |
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* Returns the fields flatten as arrays. |
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* |
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* The complex stuff in here is when there is an array, since all elements |
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* in arrays are the same type, we check only its first value to know if we need |
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* to traverse it or not. |
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* |
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* @see FlexibleEntityInterface |
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*/ |
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public function extract() |
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{ |
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$array_recurse = function ($val) use (&$array_recurse) { |
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if (is_scalar($val)) { |
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return $val; |
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} |
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if (is_array($val)) { |
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if (is_array(current($val)) || (is_object(current($val)) && current($val) instanceof FlexibleEntityInterface)) { |
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return array_map($array_recurse, $val); |
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} else { |
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return $val; |
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} |
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} |
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if (is_object($val) && $val instanceof FlexibleEntityInterface) { |
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return $val->extract(); |
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} |
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return $val; |
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}; |
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return array_map($array_recurse, array_merge($this->container, $this->getCustomFields())); |
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} |
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/** |
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* getCustomFields |
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* |
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* Return a list of custom methods with has() accessor. |
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* |
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* @access private |
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* @return array |
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*/ |
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private function getCustomFields() |
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{ |
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if (static::$has_methods === null) { |
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static::fillHasMethods($this); |
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} |
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$custom_fields = []; |
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foreach (static::$has_methods as $method) { |
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if (call_user_func([$this, sprintf("has%s", $method)]) === true) { |
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$custom_fields[Inflector::underscore(lcfirst($method))] = call_user_func([$this, sprintf("get%s", $method)]); |
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} |
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} |
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return $custom_fields; |
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} |
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/** |
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* getIterator |
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* |
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* @see FlexibleEntityInterface |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator(array_merge($this->container, $this->getCustomFields())); |
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} |
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/** |
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* __set |
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* |
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* PHP magic to set attributes. |
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* |
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* @access public |
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* @param String $var Attribute name. |
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* @param Mixed $value Attribute value. |
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* @return FlexibleEntity $this |
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*/ |
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public function __set($var, $value) |
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{ |
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$method_name = "set".Inflector::studlyCaps($var); |
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$this->$method_name($value); |
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return $this; |
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} |
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/** |
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* __get |
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* |
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* PHP magic to get attributes. |
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* |
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* @access public |
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* @param String $var Attribute name. |
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* @return Mixed Attribute value. |
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*/ |
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public function __get($var) |
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{ |
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$method_name = "get".Inflector::studlyCaps($var); |
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return $this->$method_name(); |
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} |
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/** |
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* __isset |
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* |
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* Easy value check. |
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* |
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* @access public |
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* @param string $var |
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* @return bool |
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*/ |
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public function __isset($var) |
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{ |
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$method_name = "has".Inflector::studlyCaps($var); |
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return $this->$method_name(); |
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} |
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/** |
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* __unset |
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* |
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* Clear an attribute. |
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* |
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* @access public |
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* @param string $var |
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* @return FlexibleEntity $this |
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*/ |
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public function __unset($var) |
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{ |
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$method_name = "clear".Inflector::studlyCaps($var); |
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return $this->$method_name(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetExists($offset) |
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{ |
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$method_name = "has".Inflector::studlyCaps($offset); |
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return $this->$method_name(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->__set($offset, $value); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->__get($offset); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetUnset($offset) |
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{ |
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$this->clear($offset); |
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} |
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/** |
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* fillHasMethods |
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* |
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* When getIterator is called the first time, the list of "has" methods is |
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* set in a static attribute to boost performances. |
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* |
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* @access protected |
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* @param FlexibleEntity $entity |
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* @return null |
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*/ |
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protected static function fillHasMethods(FlexibleEntity $entity) |
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{ |
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static::$has_methods = []; |
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|
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foreach (get_class_methods($entity) as $method) { |
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if (preg_match('/^has([A-Z].*)$/', $method, $matches)) { |
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static::$has_methods[] = $matches[1]; |
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} |
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} |
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} |
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} |
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