PHP CActiveRecord is a package library that provides a convenient method for database interaction in PHP. It uses an object-oriented approach to map database tables to classes and provides a wide range of functions and methods to ease database interaction.
Some of the key features of CActiveRecord include: support for object-relational mapping, data validation, and data caching. It also includes a powerful query builder that simplifies the process of constructing complex SQL queries.
Here are some code examples that illustrate the use of relationships in CActiveRecord:
1. A simple one-to-many relationship between a post and comments:
class Post extends CActiveRecord { public function relations() { return array( 'comments' => array(self::HAS_MANY, 'Comment', 'post_id'), ); } }
class Comment extends CActiveRecord { public function relations() { return array( 'post' => array(self::BELONGS_TO, 'Post', 'post_id'), ); } }
2. A many-to-many relationship between users and groups:
class User extends CActiveRecord { public function relations() { return array( 'groups' => array(self::MANY_MANY, 'Group', 'user_group(user_id, group_id)'), ); } }
class Group extends CActiveRecord { public function relations() { return array( 'users' => array(self::MANY_MANY, 'User', 'user_group(group_id, user_id)'), ); } }
Overall, CActiveRecord is a powerful package library that simplifies database interaction in PHP. Whether you're working with simple or complex data models, CActiveRecord's object-oriented approach makes it easier to implement relationships and other database functions.
PHP CActiveRecord::relations - 30 examples found. These are the top rated real world PHP examples of CActiveRecord::relations extracted from open source projects. You can rate examples to help us improve the quality of examples.