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<?php |
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/** |
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* KumbiaPHP web & app Framework |
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* |
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* LICENSE |
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* |
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* This source file is subject to the new BSD license that is bundled |
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* with this package in the file LICENSE.txt. |
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* It is also available through the world-wide-web at this URL: |
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* http://wiki.kumbiaphp.com/Licencia |
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* If you did not receive a copy of the license and are unable to |
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* obtain it through the world-wide-web, please send an email |
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* to [email protected] so we can send you a copy immediately. |
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* |
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* @category Kumbia |
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* @package ActiveRecord |
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* @subpackage Metadata |
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* @copyright Copyright (c) 2005-2014 Kumbia Team (http://www.kumbiaphp.com) |
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* @license http://wiki.kumbiaphp.com/Licencia New BSD License |
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*/ |
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namespace Kumbia\ActiveRecord\Metadata; |
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/** |
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* Metadata de tabla |
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* |
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*/ |
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abstract class Metadata |
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{ |
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/** |
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* Singleton de metadata |
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* |
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* @var array |
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*/ |
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private static $instances = array(); |
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/** |
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* Descripción de los campos |
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* |
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* @var array |
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*/ |
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protected $fields = array(); |
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/** |
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* Lista de campos |
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* |
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* @var array |
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*/ |
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protected $fieldsList = array(); |
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/** |
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* Clave primaria |
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* |
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* @var string |
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*/ |
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protected $pk; |
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/** |
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* Campos con valor predeterminado |
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* |
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* @var array |
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*/ |
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protected $withDefault = array(); |
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/** |
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* Campos con valor autogenerado |
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* |
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* @var array |
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*/ |
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protected $autoFields = array(); |
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/** |
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* Metadata de la tabla |
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* |
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* @param string $type tipo de controlador |
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* @param string $database |
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* @param string $table |
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* @param string $schema |
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* @return Metadata |
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*/ |
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public static function get($type, $database, $table, $schema = null) |
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{ |
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if (isset(self::$instances["$database.$table.$schema"])) { |
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return self::$instances["$database.$table.$schema"]; |
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} |
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return self::getMetadata($type, $database, $table, $schema); |
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} |
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/** |
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* Obtiene la metadata de la tabla |
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* Y la cachea si esta en producción |
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* |
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* @param string $type tipo de controlador |
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* @param string $database |
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* @param string $table |
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* @param string $schema |
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* @return Metadata |
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*/ |
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private static function getMetadata($type, $database, $table, $schema) |
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{ |
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if (PRODUCTION && !(self::$instances["$database.$table.$schema"] = \Cache::driver()->get("$database.$table.$schema", 'ActiveRecord.Metadata'))) { |
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return self::$instances["$database.$table.$schema"]; |
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} |
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$class = ucwords($type) . 'Metadata'; |
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$class = __NAMESPACE__ . "\\$class"; |
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self::$instances["$database.$table.$schema"] = new $class($database, $table, $schema); |
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// Cachea los metadatos |
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if (PRODUCTION) { |
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\Cache::driver()->save( |
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self::$instances["$database.$table.$schema"], |
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\Config::get('config.application.metadata_lifetime'), |
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"$database.$table.$schema", |
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'ActiveRecord.Metadata' |
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); |
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} |
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return self::$instances["$database.$table.$schema"]; |
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} |
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/** |
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* Constructor |
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* |
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* @param string $database base de datos |
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* @param string $table tabla |
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* @param string $schema squema |
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*/ |
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private function __construct($database, $table, $schema = null) |
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{ |
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$this->fields = $this->queryFields($database, $table, $schema); |
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$this->fieldsList = \array_keys($this->fields); |
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} |
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/** |
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* Permite el filtrado de columna en PK, por Defecto y Autogenerado |
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* @param $m información de la columna |
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* @param $field nombre de la columna |
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*/ |
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protected function filterCol($m, $field) |
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{ |
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if ($m['Key'] == 'PRI') |
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$this->pk = $field; |
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elseif ($m['Default']) |
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$this->withDefault[] = $field; |
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elseif ($m['Auto']) |
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$this->autoFields[] = $field; |
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} |
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/** |
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* Consultar los campos de la tabla en la base de datos |
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* |
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* @param string $database base de datos |
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* @param string $table tabla |
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* @param string $schema squema |
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* @return array |
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*/ |
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abstract protected function queryFields($database, $table, $schema = null); |
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/** |
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* Obtiene la descripción de los campos |
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* |
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* @return array |
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*/ |
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public function getFields() |
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{ |
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return $this->fields; |
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} |
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/** |
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* Obtiene la lista de campos |
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* |
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* @return array |
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*/ |
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public function getFieldsList() |
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{ |
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return $this->fieldsList; |
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} |
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/** |
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* Obtiene la clave primaria |
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* |
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* @return string |
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*/ |
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public function getPK() |
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{ |
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return $this->pk; |
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} |
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/** |
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* Obtiene los campos con valor predeterminado |
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* |
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* @return array |
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*/ |
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public function getWithDefault() |
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{ |
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return $this->withDefault; |
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} |
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/** |
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* Obtiene los campos con valor generado automatico |
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* |
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* @return array |
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*/ |
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public function getAutoFields() |
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{ |
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return $this->autoFields; |
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} |
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} |
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KumbiaPHP /
ActiveRecord
