Yii Framework v1.1.10 绫诲弬鑰

CDbExpression

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paramsarray(':value'=>$value)

鍏叡灞炴

闅愯棌缁ф壙灞炴

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

闅愯棌缁ф壙鏂规硶

鏂规硶鎻忚堪瀹氫箟鍦
__call() 濡傛灉绫讳腑娌℃湁璋冪殑鏂规硶鍚嶏紝鍒欒皟鐢ㄨ繖涓柟娉曘 CComponent
__construct() 鏋勯犳柟娉曘 CDbExpression
__get() 杩斿洖涓涓睘鎬у笺佷竴涓簨浠跺鐞嗙▼搴忓垪琛ㄦ垨涓涓涓哄悕绉般 CComponent
__isset() 妫鏌ヤ竴涓睘鎬ф槸鍚︿负null銆 CComponent
__set() 璁剧疆涓涓粍浠剁殑灞炴у笺 CComponent
__toString() 瀛楃涓查瓟鏈柟娉 CDbExpression
__unset() 璁剧疆涓涓粍浠剁殑灞炴т负null銆 CComponent
asa() 杩斿洖杩欎釜鍚嶅瓧鐨勮涓哄璞° CComponent
attachBehavior() 闄勫姞涓涓涓哄埌缁勪欢銆 CComponent
attachBehaviors() 闄勫姞涓涓涓哄垪琛ㄥ埌缁勪欢銆 CComponent
attachEventHandler() 涓轰簨浠堕檮鍔犱竴涓簨浠跺鐞嗙▼搴忋 CComponent
canGetProperty() 纭畾灞炴ф槸鍚﹀彲璇汇 CComponent
canSetProperty() 纭畾灞炴ф槸鍚﹀彲鍐欍 CComponent
detachBehavior() 浠庣粍浠朵腑鍒嗙涓涓涓恒 CComponent
detachBehaviors() 浠庣粍浠朵腑鍒嗙鎵鏈夎涓恒 CComponent
detachEventHandler() 鍒嗙涓涓瓨鍦ㄧ殑浜嬩欢澶勭悊绋嬪簭銆 CComponent
disableBehavior() 绂佺敤涓涓檮鍔犺涓恒 CComponent
disableBehaviors() 绂佺敤缁勪欢闄勫姞鐨勬墍鏈夎涓恒 CComponent
enableBehavior() 鍚敤涓涓檮鍔犺涓恒 CComponent
enableBehaviors() 鍚敤缁勪欢闄勫姞鐨勬墍鏈夎涓恒 CComponent
evaluateExpression() 璁$畻涓涓狿HP琛ㄨ揪寮忥紝鎴栨牴鎹粍浠朵笂涓嬫枃鎵ц鍥炶皟銆 CComponent
getEventHandlers() 杩斿洖涓涓簨浠剁殑闄勫姞澶勭悊绋嬪簭鍒楄〃銆 CComponent
hasEvent() 纭畾涓涓簨浠舵槸鍚﹀畾涔夈 CComponent
hasEventHandler() 妫鏌ヤ簨浠舵槸鍚︽湁闄勫姞鐨勫鐞嗙▼搴忋 CComponent
hasProperty() 纭畾灞炴ф槸鍚﹁瀹氫箟銆 CComponent
raiseEvent() 鍙戣捣涓涓簨浠躲 CComponent

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

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