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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Bernhard Posselt <[email protected]> |
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* @author Christoph Wurst <[email protected]> |
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* @author Daniel Kesselberg <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCP\AppFramework\Db; |
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use function lcfirst; |
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use function substr; |
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/** |
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* @method integer getId() |
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* @method void setId(integer $id) |
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* @since 7.0.0 |
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*/ |
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abstract class Entity { |
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public $id; |
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private $_updatedFields = []; |
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private $_fieldTypes = ['id' => 'integer']; |
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/** |
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* Simple alternative constructor for building entities from a request |
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* @param array $params the array which was obtained via $this->params('key') |
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* in the controller |
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* @return Entity |
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* @since 7.0.0 |
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*/ |
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public static function fromParams(array $params) { |
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$instance = new static(); |
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foreach ($params as $key => $value) { |
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$method = 'set' . ucfirst($key); |
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$instance->$method($value); |
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} |
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return $instance; |
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} |
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/** |
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* Maps the keys of the row array to the attributes |
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* @param array $row the row to map onto the entity |
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* @since 7.0.0 |
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*/ |
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public static function fromRow(array $row) { |
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$instance = new static(); |
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foreach ($row as $key => $value) { |
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$prop = ucfirst($instance->columnToProperty($key)); |
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$setter = 'set' . $prop; |
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$instance->$setter($value); |
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} |
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$instance->resetUpdatedFields(); |
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return $instance; |
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} |
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/** |
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* @return array with attribute and type |
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* @since 7.0.0 |
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*/ |
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public function getFieldTypes() { |
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return $this->_fieldTypes; |
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} |
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/** |
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* Marks the entity as clean needed for setting the id after the insertion |
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* @since 7.0.0 |
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*/ |
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public function resetUpdatedFields() { |
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$this->_updatedFields = []; |
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} |
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/** |
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* Generic setter for properties |
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* @since 7.0.0 |
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*/ |
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protected function setter($name, $args) { |
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// setters should only work for existing attributes |
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if (property_exists($this, $name)) { |
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if ($this->$name === $args[0]) { |
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return; |
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} |
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$this->markFieldUpdated($name); |
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// if type definition exists, cast to correct type |
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if ($args[0] !== null && array_key_exists($name, $this->_fieldTypes)) { |
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$type = $this->_fieldTypes[$name]; |
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if ($type === 'blob') { |
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// (B)LOB is treated as string when we read from the DB |
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$type = 'string'; |
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} |
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if ($type === 'datetime') { |
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if (!$args[0] instanceof \DateTime) { |
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$args[0] = new \DateTime($args[0]); |
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} |
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} else { |
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settype($args[0], $type); |
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} |
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} |
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$this->$name = $args[0]; |
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} else { |
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throw new \BadFunctionCallException($name . |
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' is not a valid attribute'); |
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} |
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} |
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/** |
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* Generic getter for properties |
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* @since 7.0.0 |
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*/ |
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protected function getter($name) { |
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// getters should only work for existing attributes |
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if (property_exists($this, $name)) { |
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return $this->$name; |
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} else { |
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throw new \BadFunctionCallException($name . |
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' is not a valid attribute'); |
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} |
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} |
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/** |
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* Each time a setter is called, push the part after set |
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* into an array: for instance setId will save Id in the |
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* updated fields array so it can be easily used to create the |
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* getter method |
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* @since 7.0.0 |
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*/ |
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public function __call($methodName, $args) { |
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if (strpos($methodName, 'set') === 0) { |
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$this->setter(lcfirst(substr($methodName, 3)), $args); |
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} elseif (strpos($methodName, 'get') === 0) { |
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return $this->getter(lcfirst(substr($methodName, 3))); |
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} elseif ($this->isGetterForBoolProperty($methodName)) { |
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return $this->getter(lcfirst(substr($methodName, 2))); |
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} else { |
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throw new \BadFunctionCallException($methodName . |
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' does not exist'); |
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} |
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} |
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/** |
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* @param string $methodName |
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* @return bool |
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* @since 18.0.0 |
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*/ |
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protected function isGetterForBoolProperty(string $methodName): bool { |
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if (strpos($methodName, 'is') === 0) { |
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$fieldName = lcfirst(substr($methodName, 2)); |
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return isset($this->_fieldTypes[$fieldName]) && strpos($this->_fieldTypes[$fieldName], 'bool') === 0; |
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} |
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return false; |
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} |
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/** |
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* Mark am attribute as updated |
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* @param string $attribute the name of the attribute |
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* @since 7.0.0 |
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*/ |
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protected function markFieldUpdated($attribute) { |
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$this->_updatedFields[$attribute] = true; |
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} |
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/** |
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* Transform a database columnname to a property |
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* @param string $columnName the name of the column |
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* @return string the property name |
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* @since 7.0.0 |
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*/ |
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public function columnToProperty($columnName) { |
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$parts = explode('_', $columnName); |
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$property = null; |
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foreach ($parts as $part) { |
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if ($property === null) { |
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$property = $part; |
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} else { |
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$property .= ucfirst($part); |
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} |
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} |
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return $property; |
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} |
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/** |
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* Transform a property to a database column name |
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* @param string $property the name of the property |
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* @return string the column name |
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* @since 7.0.0 |
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*/ |
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public function propertyToColumn($property) { |
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$parts = preg_split('/(?=[A-Z])/', $property); |
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$column = null; |
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foreach ($parts as $part) { |
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if ($column === null) { |
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$column = $part; |
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} else { |
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$column .= '_' . lcfirst($part); |
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} |
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} |
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return $column; |
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} |
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/** |
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* @return array array of updated fields for update query |
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* @since 7.0.0 |
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*/ |
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public function getUpdatedFields() { |
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return $this->_updatedFields; |
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} |
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/** |
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* Adds type information for a field so that its automatically casted to |
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* that value once its being returned from the database |
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* @param string $fieldName the name of the attribute |
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* @param string $type the type which will be used to call settype() |
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* @since 7.0.0 |
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*/ |
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protected function addType($fieldName, $type) { |
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$this->_fieldTypes[$fieldName] = $type; |
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} |
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/** |
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* Slugify the value of a given attribute |
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* Warning: This doesn't result in a unique value |
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* @param string $attributeName the name of the attribute, which value should be slugified |
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* @return string slugified value |
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* @since 7.0.0 |
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*/ |
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public function slugify($attributeName) { |
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// toSlug should only work for existing attributes |
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if (property_exists($this, $attributeName)) { |
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$value = $this->$attributeName; |
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// replace everything except alphanumeric with a single '-' |
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$value = preg_replace('/[^A-Za-z0-9]+/', '-', $value); |
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$value = strtolower($value); |
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// trim '-' |
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return trim($value, '-'); |
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} else { |
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throw new \BadFunctionCallException($attributeName . |
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' is not a valid attribute'); |
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} |
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} |
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} |
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