< ? php class PostTest extends CDbTestCase{ public $ fixtures = array ( 'posts' = > 'Post' , 'tags' = > 'Tag' , ) ; public function testFindPost( ) { //调用 find 时,我们使用 $condition 和 $params 指定查询条件。 //此处 $condition 可以是 SQL 语句中的 WHERE 字符串,$params 则是一个参数数组, //其中的值应绑定到 $condation 中的占位符。 $ post = $ this - > posts( 'post1' ) ; $ fPost = Post: : model( ) - > find( 'id = :id' , array ( ':id' = > $ post - > id) ) ; //SELECT * FROM `tbl_post` `t` WHERE `t`.`id`=1 LIMIT 1 $ fPost = Post: : model( ) - > find( '?' , array ( $ post - > id) ) ; //SELECT * FROM `tbl_post` `t` WHERE '1' LIMIT 1 //find返回符合条件的第一条记录,而findAll会返回符合条件的所有行。 $ fAllPost = Post: : model( ) - > findAll( 'id = :id' , array ( ':id' = > $ post - > id) ) ; //SELECT * FROM `tbl_post` `t` WHERE id = '1' $ fAllPost = Post: : model( ) - > findAll( '?' , array ( $ post - > id) ) ; //SELECT * FROM `tbl_post` `t` WHERE '1' $ criteria = new CDbCriteria( ) ; $ criteria - > condition = 'id = :id AND title = :title' ; $ criteria - > params = array ( ':id' = > $ post - > id, ':title' = > $ post - > title) ; $ fPost = Post: : model( ) - > find( $ criteria ) ; //SELECT * FROM `tbl_post` `t` WHERE id = '1' AND title = 'post1' LIMIT 1 $ fAllPost = Post: : model( ) - > findAll( $ criteria ) ; //SELECT * FROM `tbl_post` `t` WHERE id = '1' AND title = 'post1' $ fPost = Post: : model( ) - > findByPk( $ post - > id, 'title = :title' , array ( ':title' = > $ post - > title) ) ; //SELECT * FROM `tbl_post` `t` WHERE `t`.`id`=1 AND (title = 'post1') LIMIT 1 $ fPost = Post: : model( ) - > findByAttributes( array ( 'id' = > $ post - > id, 'title' = > $ post - > title) ) ; //SELECT * FROM `tbl_post` `t` WHERE `t`.`id`='1' AND `t`.`title`='post1' LIMIT 1 $ sql = 'SELECT id, title from {{post}} WHERE id = ? AND title = ?' ; //必须设置表前缀 $ fPost = Post: : model( ) - > findBySql( $ sql , array ( $ post - > id, $ post - > title) ) ; $ sql = 'SELECT id, title from {{post}} WHERE id = :id AND title = :title' ; $ fPost = Post: : model( ) - > findBySql( $ sql , array ( ':id' = > $ post - > id, ':title' = > $ post - > title) ) ; //如果没有找到符合条件的行,find返回null,findAll 返回 array()。 } public function testCountPost( ) { $ post = $ this - > posts( 'post1' ) ; $ cPost = Post: : model( ) - > count ( '?' , array ( $ post - > title) ) ; //SELECT COUNT(*) FROM `tbl_post` `t` WHERE 'post1' 无意义 $ cPost = Post: : model( ) - > countByAttributes( array ( 'title' = > $ post - > title, 'content' = > $ post - > content) ) ; //SELECT COUNT(*) FROM `tbl_post` `t` WHERE `t`.`title`='post1' AND `t`.`content`='content1' $ sql = "SELECT title from {{post}} WHERE title LIKE '%" . $ post - > title . "%'" ; $ cPost = Post: : model( ) - > countBySql( $ sql ) ; //至少有一条记录符合查询条件 $ ePost = Post: : model( ) - > exists( 'id = ? AND title = ?' , array ( $ post - > id, $ post - > title) ) ; //SELECT 1 FROM `tbl_post` `t` WHERE id = '1' AND title = 'post1' LIMIT 1 } public function testUpdatePost( ) { $ post = $ this - > posts( 'post1' ) ; $ post - > title = 'update post 1' ; if ( $ post - > isNewRecord) { $ post - > create_time = $ post - > update_time = new CDbExpression( 'NOW()' ) ; //UPDATE `tbl_post` SET `id`=1, `title`='update post 1', `content`='content1', `tags`=NULL, `status`=1, `create_time`=NULL, `update_time`=1302161123, `author_id`=1 WHERE `tbl_post`.`id`=1 } else { $ post - > update_time = time ( ) ; } $ post - > save( ) ; //updateAll $ sql = "SELECT * FROM {{post}} WHERE title LIKE '%" . "post" . "%'" ; //SELECT * FROM tbl_post WHERE title LIKE '%post%' $ post = Post: : model( ) - > findBySql( $ sql ) ; $ post - > updateAll( array ( 'update_time' = > time ( ) ) , 'id <= ?' , array ( '2' ) ) ; //UPDATE `tbl_post` SET `update_time`=1302161123 WHERE id <= '2' $ post - > updateByPk( $ post - > id + 2, array ( 'title' = > 'update post 3' ) ) ; $ post - > updateByPk( $ post - > id, array ( 'title' = > 'update post 3' ) , 'id = ?' , array ( '3' ) ) ; //updateCounter 更新某个字段的数值,一般是计数器(+/-)。 $ tag = $ this - > tags( 'tag1' ) ; $ uTag = Tag: : model( ) - > updateCounters( array ( 'frequency' = > '3' ) , 'id = ?' , array ( '1' ) ) ; } public function testDeletePost( ) { $ post = $ this - > posts( 'post1' ) ; $ post - > delete ( ) ; $ this - > assertEquals( 1, $ post - > id) ; //删除数据库表中的记录,但是post的这个实例还在。 $ post2 = Post: : model( ) - > findByPk( $ post - > id) ; $ this - > assertEquals( null , $ post2 ) ; //多条记录 $ delete = Post: : model( ) - > deleteAll( '(id = ? AND title = ?) || (id = \'4\') ' , array ( 1, 'post 1' ) ) ; $ this - > assertEquals( 0, $ delete ) ; $ delete = Post: : model( ) - > deleteAllByAttributes( array ( 'id' = > '2' ) , 'content = ?' , array ( 'content2' ) ) ; //DELETE FROM `tbl_post` WHERE `tbl_post`.`id`='2' AND (content = 'content2') $ this - > assertEquals( 1, $ delete ) ; } } ? >