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yii2 的model 执行流程是什么

WBOY
WBOYOriginal
2016-06-06 20:30:331204browse

之前在yii1里

提交数据是
$model->load()
$model->save()
比如我要把 date类型转为int类型
会在 beforesave()里 $this->date = time() 转换

但是在yii2里

beforeSave(){
$this->date = time()
}

会先走validate的 rule方法

就是说 没有进beforeSave转换之前就先执行了, 那beforeSave还有毛用了

回复内容:

之前在yii1里

提交数据是
$model->load()
$model->save()
比如我要把 date类型转为int类型
会在 beforesave()里 $this->date = time() 转换

但是在yii2里

beforeSave(){
$this->date = time()
}

会先走validate的 rule方法

就是说 没有进beforeSave转换之前就先执行了, 那beforeSave还有毛用了

如果楼主是单纯想要给时间字段赋值,建议在模型里添加如下代码:

<code>php</code><code>public function behaviors()
    {
        return [
            [
                'class' => TimestampBehavior::className(),
                'attributes' => [
                    ActiveRecord::EVENT_BEFORE_INSERT => ['created_at','updated_at'],
                    ActiveRecord::EVENT_BEFORE_UPDATE => 'updated_at'
                ],
            ],
    }
</code>

然后我再正面回答一下楼主问题,流程如下:

<code>flow</code><code>st=>start: $model->save(runValidation)
e=>end: 整个请求结束
runValidation=>condition: runValidation?
beforeValidate=>operation: beforeValidate
validate=>operation: validate(rules在这儿执行)
afterValidate=>operation: afterValidate
beforeSave=>operation: beforeSave
save=>operation: save
afterSave=>operation: afterSave

st->runValidation
runValidation(yes,right)->beforeValidate
runValidation(no)->beforeSave
beforeValidate->validate->afterValidate(left)->beforeSave
beforeSave->save->afterSave->e
</code>

我勒个去,为了画这个流程图,我专门去看了下markdown的流程图语法。。。一晚上时间就白费了。。。楼主,你要负责

这样写试试:

<code>public function beforeSave($insert)
{
    if (parent::beforeSave($insert)) {
        $this->date = time();
        return true;
    } else {
        return false;
    }
}
</code>

不知道题主是什么困扰,但是你如果是非得不走rules(),可以直接在save()方法指定$runValidationfalse

RTFM

http://www.yiiframework.com/doc-2.0/yii-db-baseactiverecord.html#save(...

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