What is the model execution process of yii2?

Previously, the data submitted in yii1 was $ model-& amp; gt; load () $ model-& amp; gt; save () for example, if you want to convert the date type to the int type, it will be converted to $ this-& amp; gt; datetime () in beforesave () But beforeSave () in yii2 () {$ this-& amp; gt; datetime ()} will first... Previously in yii1

Yes
$model->load()
$model->save()
For example, I want to convert the date type to the int type.
Will be in beforesave ()$this->date = time()Conversion

But in yii2

BeforeSave (){
$ This-> date = time ()
}

The rule Method of validate will be taken first

That is to say, the beforeSave command is executed before the beforeSave command is converted. The beforeSave command is still in use.

Reply content:

Previously in yii1

Yes
$model->load()
$model->save()
For example, I want to convert the date type to the int type.
Will be in beforesave ()$this->date = time()Conversion

But in yii2

BeforeSave (){
$ This-> date = time ()
}

The rule Method of validate will be taken first

That is to say, the beforeSave command is executed before the beforeSave command is converted. The beforeSave command is still in use.

If you just want to assign a value to the time field, we recommend that you add the following code to the model:

phppublic function behaviors()    {        return [            [                'class' => TimestampBehavior::className(),                'attributes' => [                    ActiveRecord::EVENT_BEFORE_INSERT => ['created_at','updated_at'],                    ActiveRecord::EVENT_BEFORE_UPDATE => 'updated_at'                ],            ],    }

Then I will reply to the landlord's question. The process is as follows:

flowSt => start: $ model-> save (runValidation) e => end: the entire request ends. runValidation => condition: runValidation? BeforeValidate => operation: Operator => operation: validate (run rules here) afterValidate => operation: afterValidatebeforeSave => operation: beforeSavesave => operation: saveafterSave => operation: afterSavest-> runValidationrunValidation (yes, right)-> beforeValidaterunValidation (no)-> validate-> afterValidate (left)-> beforeSavebeforeSave-> save-> afterSave-e

I went here. In order to draw this flowchart, I took a special look.markdownFlow chart syntax... One night is in vain... You are responsible

Try this:

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

I don't know what troubles the subject is, but if you have to leaverules(), You can directlysave()Method specified$runValidationIsfalse

RTFM

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