CDbExpression
鍖 | system.db.schema |
---|---|
缁ф壙 | class CDbExpression » CComponent |
鐗堟湰 | $Id: CDbExpression.php 3515 2011-12-28 12:29:24Z mdomba $ |
婧愮爜 | framework/db/schema/CDbExpression.php |
CDbExpression鎸囬渶瑕佽浆涔夌殑鏁版嵁琛ㄨ揪寮忋
CDbExpression浣滀负灞炴у间富瑕佺敤浜CActiveRecord銆
褰撴彃鍏ユ垨鑰呮洿鏂颁竴涓CActiveRecord鏃讹紝CDbExpression
绫诲瀷鐨勫睘鎬у间細琚洿鎺ユ姇鍏ョ浉搴旂殑SQL璇彞
鑰屼笉杞箟銆傚吀鍨嬬殑鐢ㄦ硶鏄紝缁欎竴涓睘鎬ц缃楴OW()鈥
琛ㄨ揪寮忥紝杩欐牱鍦ㄤ繚瀛樿褰曟椂浼氬~鍏呯浉搴斿垪鐨
璁板綍涓烘暟鎹簱鏈嶅姟鍣ㄦ椂闂存埑銆
浠1.1.鐗堟湰寮濮嬶紝涔熷彲浠ョ粰琛ㄨ揪寮忔寚瀹 瑕佺粦瀹氱殑鍙傛暟鍊笺備緥濡傦紝鑻ヨ〃杈惧紡鏄楲OWER(:value)鈥欙紝閭d箞鍙互璁惧畾params涓
浠1.1.鐗堟湰寮濮嬶紝涔熷彲浠ョ粰琛ㄨ揪寮忔寚瀹 瑕佺粦瀹氱殑鍙傛暟鍊笺備緥濡傦紝鑻ヨ〃杈惧紡鏄楲OWER(:value)鈥欙紝閭d箞鍙互璁惧畾params涓
array(':value'=>$value)
銆鍏叡灞炴
灞炴 | 绫诲瀷 | 鎻忚堪 | 瀹氫箟鍦 |
---|---|---|---|
expression | string | 鏁版嵁琛ㄨ揪寮 | CDbExpression |
params | array | 鏄撳疂缁戝畾鍦ㄨ琛ㄨ揪寮忎笂鐨勫弬鏁板垪琛ㄣ 閿槸expression鍑虹幇鐨勫崰浣嶇锛 鑰屽兼槸鐩稿簲鐨勫弬鏁板笺 | CDbExpression |
鍏叡鏂规硶
灞炴ц缁
expression
灞炴
public string $expression;
鏁版嵁琛ㄨ揪寮
params
灞炴
锛堝彲鐢ㄨ嚜 v1.1.1锛
public array $params;
鏄撳疂缁戝畾鍦ㄨ琛ㄨ揪寮忎笂鐨勫弬鏁板垪琛ㄣ 閿槸expression鍑虹幇鐨勫崰浣嶇锛 鑰屽兼槸鐩稿簲鐨勫弬鏁板笺
鏂规硶璇︾粏
__construct()
鏂规硶
public void __construct(string $expression, array $params=array (
))
| ||
$expression | string | 鏁版嵁琛ㄨ揪寮 |
$params | array | 鍙傛暟 |
婧愮爜锛 framework/db/schema/CDbExpression.php#47 (鏄剧ず)
public function __construct($expression,$params=array())
{
$this->expression=$expression;
$this->params=$params;
}
鏋勯犳柟娉曘
__toString()
鏂规硶
public string __toString()
| ||
{return} | string | 鏁版嵁琛ㄨ揪寮 |
婧愮爜锛 framework/db/schema/CDbExpression.php#57 (鏄剧ず)
public function __toString()
{
return $this->expression;
}
瀛楃涓查瓟鏈柟娉