%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Interface LP_Interface_CURD
*/
interface LP_Interface_CURD {
/**
* Create item and insert to database.
*
* @since 3.0.0
*
* @param object $object
*/
public function create( &$object );
/**
* Load data from database.
*
* @since 3.0.0
*
* @param object $object
*/
public function load( &$object );
/**
* Update data into database.
*
* @since 3.0.0
*
* @param object $object
*/
public function update( &$object );
/**
* Delete data from database.
*
* @since 3.0.0
*
* @param object $object
*/
public function delete( &$object );
/**
* Duplicate item and insert to database
*
* @param $object
* @param array $args
*
* @return mixed
*/
public function duplicate( &$object, $args = array() );
/**
* Add new meta data.
*
* @since 3.0.0
*
* @param $object
* @param $meta
*/
public function add_meta( &$object, $meta );
/**
* Read meta data for passed object.
*
* @since 3.0.0
*
* @param $object
*/
public function read_meta( &$object );
/**
* Update meta data.
*
* @since 3.0.0
*
* @param $object
* @param $meta
*/
public function update_meta( &$object, $meta );
/**
* Delete meta data.
*
* @since 3.0.0
*
* @param $object
* @param $meta
*/
public function delete_meta( &$object, $meta );
}
/**
* Class LP_Object_Data_Meta
*/
class LP_Object_Data_CURD {
/**
* @var string
*/
protected $_meta_type = 'post';
/**
* Errors codes and message.
*
* @var bool
*/
protected $_error_messages = false;
/**
* Add new meta data.
*
* @param $object
* @param $meta
*/
public function add_meta( &$object, $meta ) {
// TODO: Implement add_meta() method.
}
/**
* Delete meta data.
*
* @since 3.0.0
*
* @param $object
* @param $meta
*/
public function delete_meta( &$object, $meta ) {
// TODO: Implement delete_meta() method.
}
/**
* Read all meta data from DB.
*
* @param $object LP_Course|LP_Lesson|LP_Quiz|LP_Question
*
* @return array|null|object
*/
public function read_meta( &$object ) {
global $wpdb;
if ( false === ( $meta_data = wp_cache_get( $object->get_id(), 'object-meta' ) ) ) {
$id_column = ( 'user' == $this->_meta_type ) ? 'umeta_id' : 'meta_id';
$object_id_column = $this->_meta_type . '_id';
$table = _get_meta_table( $this->_meta_type );
$query = $wpdb->prepare( "
SELECT {$id_column} as meta_id, meta_key, meta_value
FROM {$table}
WHERE {$object_id_column} = %d
ORDER BY {$id_column}
", $object->get_id() );
$meta_data = $wpdb->get_results( $query );
wp_cache_set( $object->get_id(), $meta_data, 'object-meta' );
}
return $meta_data;
}
/**
* Update meta data.
*
* @since 3.0.0
*
* @param $object LP_Course|LP_Lesson|LP_Quiz|LP_Question
* @param $meta
*/
public function update_meta( &$object, $meta ) {
update_metadata( $this->_meta_type, $object->get_id(), $meta->meta_key, $meta->meta_value );
}
/**
* @param $type
*
* @return mixed|LP_Object_Data_CURD
*/
public static function get( $type ) {
static $curds = false;
if ( ! $curds ) {
$curds = array(
'user' => new LP_User_CURD(),
'order' => new LP_Order_CURD(),
);
}
return ! empty( $curds[ $type ] ) ? $curds[ $type ] : false;
}
/**
* Get WP_Object.
*
* @param $code
*
* @return bool|WP_Error
*/
protected function get_error( $code ) {
if ( isset( $this->_error_messages[ $code ] ) ) {
return new WP_Error( $code, $this->_error_messages[ $code ] );
}
return false;
}
}
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