Yii-数据库操作（增）

1 第一种

$post=new Post;
$post->title='sample post';
$post->content='content for the sample post';
$post->createTime=time();/$post->createTime=new CDbexpression_r('NOW()');
$post->save();

$user_field_data= new user_field_data;
$user_field_data->flag=0;
$user_field_data->user_id=$profile->id;
$user_field_data->field_id=$_POST['emailhiden'];
$user_field_data->value1=$_POST['email'];
$user_field_data->save();

注当一个表存储4次的时候，需要创建4个handle new4次

2 第二种

存储后我们需要找到这条记录的流水id 这样做 $profile = new profile; $profile->id;

3 第三种

用于更加安全的方法，来绑定变量类型 这样可以在同一个表中存储两个记录

$sql="insert into user_field_data(user_id,field_id,flag,value1) values(:user_id,:field_id,:flag,:value1);";
$command=user_field_data::model()->dbConnection->createCommand($sql);
$command->bindParam(":user_id",$profile->id,PDO::PARAM_INT);
$command->bindParam(":field_id",$_POST['firstnamehiden'],PDO::PARAM_INT);
$command->bindParam(":flag",$tmpflag,PDO::PARAM_INT);
$command->bindParam(":value1",$_POST['firstname'],PDO::PARAM_STR);
$command->execute();
$command->bindParam(":user_id",$profile->id,PDO::PARAM_INT);
$command->bindParam(":field_id",$_POST['emailhiden'],PDO::PARAM_INT);
$command->bindParam(":flag",$tmpflag,PDO::PARAM_INT);
$command->bindParam(":value1",$_POST['email'],PDO::PARAM_STR);
$rowchange = $command->execute();

if( $rowchange != 0){ 修改成功 }// 用来判断
//注：update delete都可以用这个方法
$sql="delete from profile where id=:id";
$command=profile::model()->dbConnection->createCommand($sql);
$command->bindParam(":id",$userid,PDO::PARAM_INT);
$this->rowflag=$command->execute();

$sql="update profile set pass=:pass,role=:role where id=:id";
$command=profile::model()->dbConnection->createCommand($sql);
$command->bindParam(":pass",$password,PDO::PARAM_STR);
$command->bindParam(":role",$role,PDO::PARAM_INT);
$command->bindParam(":id",$userid,PDO::PARAM_INT);
$this->rowflag=$command->execute();
// 同理变更updateAll()模式
$sql="update user_field_data set flag = :flag where user_id= :user_id and field_id= :field_id ";
原始sql语句
$criteria = new CDbCriteria;
$criteria->condition = 'user_id = :user_id and field_id= :field_id';
$criteria->params = array(':user_id' => $userid,':field_id' => $fieldid);
$arrupdate = array('flag' => $flag);
if(user_field_data::model()->updateAll($arrupdate,$criteria) != 0)
{
更新成功后。。。
}

4 第四种

更新和存储应用同一个handle 流程：先查询记录是否存在，若存在就更新，不存在就新创建
注：1. 第一次查询的变量，要跟save()前的变量一致。2. 存储时候需要再次 new一下库对象

$user_field_data = user_field_data::model()->findByAttributes(
$attributes = array('user_id' => Yii::app()->user->user_id, 'field_id' => $key));
if ($user_field_data !== null)
{
	$user_field_data->value1 = $value;
	$user_field_data->save();
}
else
{
	$user_field_data = new user_field_data;
	$user_field_data->user_id = Yii::app()->user->user_id;
	$user_field_data->field_id = $key;
	$user_field_data->value1 = $value;
	$user_field_data->save();
}