前段时间的一个项目是要对一个用yii1.1写的商城做修改,不怎么好写,不过比面向过程的ecshop好得多,之前刚开始改ecshop还真是头大
yii1.1其中数据库操作花了我不少时间去找各种例子进行测试,出于日后可能还要改的原因,我将数据库的一些操作改成了thinkphp的形式,代码如下
<?php
/**gcud数据库操作
* @version 20191231
*/
class gcudDb { private $TableName; private $Conditions; private $ConditionsParameters; private $FieldsString; private function getDbCommand() { return \Yii::app()->db->createCommand(); } private function BuildCondition() { $this->ConditionsParameters = []; $this->ConditionsParameters['fieldString'] = ''; $this->ConditionsParameters['parameters'] = []; if ($this->Conditions) foreach ($this->Conditions as $Key => $Value) { $this->ConditionsParameters['fieldString'] .= " and $Key=:$Key"; $this->ConditionsParameters['parameters'][":$Key"] = $Value; } $this->ConditionsParameters['fieldString'] = ltrim($this->ConditionsParameters['fieldString'], ' and '); } public static function name($TableName) { $Table = new static(); $Table->TableName = "{{_$TableName}}"; return $Table; } public function field($FieldString) { $this->FieldsString = $FieldString; return $this; } public function where($field, $value) { $this->Conditions[$field] = $value; return $this; } public function insert($Data) { self::getDbCommand()->insert($this->TableName, $Data); } public function delete() { $this->BuildCondition(); self::getDbCommand()->delete($this->TableName, $this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters']); } public function find() { $this->BuildCondition(); return self::getDbCommand()->select($this->FieldsString) ->from($this->TableName)->where($this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters'])->queryRow(); } public function column($Field) { $this->BuildCondition(); $Data = self::getDbCommand()->select($Field) ->from($this->TableName)->where($this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters'])->queryAll(); $ReturnData = null; foreach ($Data as $Item) { $ReturnData[] = $Item[$Field]; } return $ReturnData; } public function value($Field) { $this->BuildCondition(); $Data = self::getDbCommand()->select($Field)->from($this->TableName) ->where($this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters'])->queryRow(); return $Data[$Field]; } public function count() { $this->BuildCondition(); $Data = self::getDbCommand()->select('count(1) gcudcount') ->from($this->TableName)->where($this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters'])->queryRow(); return $Data['gcudcount']; } public function update($Data) { $this->BuildCondition(); self::getDbCommand()->update($this->TableName, $Data, $this->ConditionsParameters['fieldString'], $this->ConditionsParameters['parameters']); } }db操作风格是5.1的,where操作仅支持直接的deng'yu