strive
7 years ago
committed by
GitHub
1 changed files with 73 additions and 22 deletions
@ -1,35 +1,86 @@
|
||||
多模型的复合表单 |
||||
================================== |
||||
|
||||
在复杂的用户界面可能会发生,用户在表单中填写数据 |
||||
后将其保存在数据库的不同表中。yii形式的表单与单模型表单相比 |
||||
可以让你用更加简单的方法来创建。 |
||||
When dealing with some complex data, it is possible that you may need to use multiple different models to collect |
||||
the user input. For example, assuming the user login information is stored in the `user` table while the user profile |
||||
information is stored in the `profile` table, you may want to collect the input data about a user through a `User` model |
||||
and a `Profile` model. With the Yii model and form support, you can solve this problem in a way that is not much |
||||
different from handling a single model. |
||||
|
||||
与一个模型一样,你遵循以下模式用于服务端验证: |
||||
In the following, we will show how you can create a form that would allow you to collect data for both `User` and `Profile` |
||||
models. |
||||
|
||||
1. 实例化模型类 |
||||
2. 用输入数据填充模型属性 |
||||
3. 验证所有模型 |
||||
4. 如果所有模型验证通过,则保存它们 |
||||
5. 如果验证失败或没有提交数据,传递所有模型对象到视图显示表单 |
||||
First, the controller action for collecting the user and profile data can be written as follows, |
||||
|
||||
在下文中我们展示了一个在表单中使用多模型的例子... TBD |
||||
```php |
||||
namespace app\controllers; |
||||
|
||||
多模型实例 |
||||
--------------- |
||||
use Yii; |
||||
use yii\base\Model; |
||||
use yii\web\Controller; |
||||
use yii\web\NotFoundHttpException; |
||||
use app\models\User; |
||||
use app\models\Profile; |
||||
|
||||
> Note: This section is under development. |
||||
> |
||||
> It has no content yet. |
||||
class UserController extends Controller |
||||
{ |
||||
public function actionUpdate($id) |
||||
{ |
||||
$user = User::findOne($id); |
||||
if (!$user) { |
||||
throw new NotFoundHttpException("The user was not found."); |
||||
} |
||||
|
||||
$profile = Profile::findOne($user->profile_id); |
||||
|
||||
if (!$profile) { |
||||
throw new NotFoundHttpException("The user has no profile."); |
||||
} |
||||
|
||||
$user->scenario = 'update'; |
||||
$profile->scenario = 'update'; |
||||
|
||||
if ($user->load(Yii::$app->request->post()) && $profile->load(Yii::$app->request->post())) { |
||||
$isValid = $user->validate(); |
||||
$isValid = $profile->validate() && $isValid; |
||||
if ($isValid) { |
||||
$user->save(false); |
||||
$profile->save(false); |
||||
return $this->redirect(['user/view', 'id' => $id]); |
||||
} |
||||
} |
||||
|
||||
return $this->render('update', [ |
||||
'user' => $user, |
||||
'profile' => $profile, |
||||
]); |
||||
} |
||||
} |
||||
``` |
||||
|
||||
TBD |
||||
In the `update` action, we first load the `$user` and `$profile` models to be updated from the database. We then call |
||||
[[yii\base\Model::load()]] to populate these two models with the user input. If loading is successful, we will validate |
||||
the two models and then save them — please note that we use `save(false)` to skip over validations inside the models |
||||
as the user input data have already been validated. If loading is not successful, we will render the `update` view which |
||||
has the following content: |
||||
|
||||
Dependend models |
||||
---------------- |
||||
```php |
||||
<?php |
||||
use yii\helpers\Html; |
||||
use yii\widgets\ActiveForm; |
||||
|
||||
$form = ActiveForm::begin([ |
||||
'id' => 'user-update-form', |
||||
'options' => ['class' => 'form-horizontal'], |
||||
]) ?> |
||||
<?= $form->field($user, 'username') ?> |
||||
|
||||
> Note: This section is under development. |
||||
> |
||||
> It has no content yet. |
||||
...other input fields... |
||||
|
||||
<?= $form->field($profile, 'website') ?> |
||||
|
||||
TBD |
||||
<?= Html::submitButton('Update', ['class' => 'btn btn-primary']) ?> |
||||
<?php ActiveForm::end() ?> |
||||
``` |
||||
|
||||
As you can see, in the `update` view you would render input fields using two models `$user` and `$profile`. |
||||
|
Loading…
Reference in new issue