Comparing
#11 with
#12
Yii version
2.0
Content
[...]
### PostWithCategories model
And the last one is extended from Post. It has an additional attribute called 'category_ids' that will be used to handle the categories of the post. Note that **'category_ids' attribute is an array** of category ids.
```php
class PostWithCategories extends Post
{[...]
We want to add a small utility method to Category model.
```php
class Category extends ActiveRecord
{[...]
{
$categories = self::find()->order('name')->asArray()->all();
$items = ArrayHelper::map($categoryies, 'id', 'name');
return $items;
}[...]
### Create action
```php
/**
* Create Post with its categories[...]
In the view script, we can use a listBox with multiple selection or a checkboxList to select the categories.
```php
<?php $form = ActiveForm::begin([
'id' => 'post-form',[...]
It's almost the same with Create action:
```php
/**
* Update a post with its categories[...]
It's different from create.php only in the text of the submit button:
```php
...
<?= Html::submitButton('Update', [
'class' => 'btn btn-primary'
]) ?>
...[...]
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