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Validation can be disabled both on the client side (for yiiActiveForm) and on the server side.

Using a scenario will indicate that server-side validation should be skipped for certain fields.

On the client side, validation for specific fields will be dynamically removed depending on the selected action (in our case — delete).

Our controller:

$NewsletterMailForm = new NewsletterMailForm();

if(Yii::$app -> request -> post($NewsletterMailForm -> formName())['event'] != NewsletterMailForm::EVENT_DELETE)
{
	$NewsletterMailForm -> scenario = NewsletterMailForm::EVENT_SEND;
}

If the "event" field is not equal to "delete", it means we are going to send emails (no other actions are handled at this point).

2017-08-30 Pavel Yii2 CommentsNo Comments

Using IN in createCommand of Yii2 framework

To do this, you should form the query as follows:

Yii::$app -> db -> createCommand() -> update(ContactusModel::tableName(), ['is_read' => 0], [
	'id' => $this -> id
]) -> execute();

Where:
ContactusModel::tableName() — the target table
$this -> id — an array of IDs, which will automatically generate a query with IN (.., .., .....)

2017-08-30 Pavel Yii2 CommentsNo Comments

How to set default parameters for a widget in Yii2

To set default parameters for a widget in Yii2, you need to use the dependency injection container.

Example with DatePicker:

Yii::$container -> set('yiijuiDatePicker', [
	'language' => 'en-US',
]);

The first parameter in set is the class name, and the second is the array of parameters to configure. This way, we can preconfigure our widget properly from the start.

2017-08-30 Pavel Yii2 CommentsNo Comments

Your own Grid columns in the Yii2 framework

Continuing to expand my knowledge of Yii2.

I had, of course, heard about custom columns in Grid, but hadn’t used them in practice. However, when code duplication reached 5 separate places, I thought — why not give it a try? And it turned out to be quite nice, convenient, and most importantly — flexible!

Below is the full code listing of a sample column class that extends DataColumn:

namespace backendgrid;

use Yii;
use yiihelpersHtml;
use yiigridDataColumn;

class ActiveColumn extends DataColumn
{
	public $headerOptions = [
		'style' => 'width: 80px;'
	];
	
	public $contentOptions = [
		'class' => 'text-center'
	];
	
	public $attribute = 'is_active';
	
    /**
     * @inheritdoc
     */
    protected function renderDataCellContent($a)
    {
		if($a['is_active'] == 1)
		{
			return Html::a('<span class="glyphicon glyphicon-ok-circle"></span>', [
					'active', 'id' => $a['id'], 'is_active' => 0], [
					'title' => Yii::t('app', 'Unactivate this'),
					'data-pjax' => '0',
				]
			);
		}
		return Html::a('<span class="glyphicon glyphicon-lock"></span>', [
				'active', 'id' => $a['id'], 'is_active' => 1], [
				'title' => Yii::t('app', 'Activate this'),
				'data-pjax' => '0',
			]
		);
    }
}