actually im working on a project, where i want to have all DB-tables as Models. But now im stucking at one Point. Lets say i have a "Master"-Table where many different relations are defined like the following (easy example):
Human has one heart; Human has one brain... and so on... Is it possible, to fill up the Master-Model with other Models? In PHP it would looks like that:
$human = new Human();
$human->heart = new Heart();
$human->brain = new Brain();
Finally i want to say:
$human-save(TRUE);
to VALIDATE all relational models AND save all relational data and the human object in DB.
Is that possible? I cant find something like that on the whole internet O_o.
Thank you very much!
You can override ActiveModel
Save
method, according to docs :
public function save($runValidation = true, $attributeNames = null)
{
if ($this->getIsNewRecord()) {
$save = $this->insert($runValidation, $attributeNames);
} else {
$save = $this->update($runValidation, $attributeNames) !== false;
}
/* Condition Work if heart and brain is also ActiveModel then
you can trigger save method on these models as well
or you can add your custom logic as well.
*/
if($this->heart && $this->brain) {
return $this->heart->save() && $this->brain->save();
}
return $save;
}
I suggest you following approach:
$model->link()
method) save
and validate
to perform cascade for these operations (using reflection) Or , as an alternative for overriding validate
method, you can build some suitable implementation for rules
method in common class.
This common class can looks as follows ( this is a simple draft, not tested, just to show the conception ):
<?php
namespace app\models;
use yii\db\ActiveRecord;
class ActiveRecordWithNestedModels extends ActiveRecord
{
public function save($runValidation = true, $attributeNames = null)
{
$saveResult = parent::save($runValidation, $attributeNames);
$class = new \ReflectionClass($this);
foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC) as $property) {
$propertyValue = $property->getValue($this);
if (!empty($propertyValue) && is_subclass_of($propertyValue, ActiveRecord::className())) {
/* @var ActiveRecord $nestedModel */
$nestedModel = $propertyValue;
$nestedModel->save($runValidation);
$relation = $property->name;
$this->link($relation, $nestedModel);
}
}
return $saveResult;
}
public function validate($attributeNames = null, $clearErrors = true)
{
$class = new \ReflectionClass($this);
foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC) as $property) {
$propertyValue = $property->getValue($this);
if (!empty($propertyValue) && is_subclass_of($propertyValue, ActiveRecord::className())) {
/* @var ActiveRecord $nestedModel */
$nestedModel = $propertyValue;
if (!$nestedModel->validate(null, $clearErrors)) {
array_push($this->errors, [
$property->name => $nestedModel->errors
]);
}
}
}
parent::validate($attributeNames, $clearErrors);
if ($this->hasErrors()) return false;
return true;
}
}
Then your models can looks like this:
class Heart extends ActiveRecordWithNestedModels
{
}
class Human extends ActiveRecordWithNestedModels
{
/* @var Heart $heart */
public $heart = null;
/**
* The relation name will be 'heart', same as property `heart'
*
* @return \yii\db\ActiveQuery
*/
public function getHeart()
{
return $this->hasOne(Heart::className(), ['id', 'heart_id']);
}
}
And (in theory) you can do:
$human = new Human();
$human->heart = new Heart();
$human->save();
PS here can be many complex details in further implementation, as for example
save
if some child object fails save delete
one-to-many
and many-to-many
relations $attributeNames
in cascade operations
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.