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Events

Metrix provides a collection of events for extending its functionality. Modules and plugins can register event listeners, typically in their init() methods, to modify Metrix’s behavior.

Source Events

The beforeSaveSource event

The event that is triggered before a source is saved.

use verbb\metrix\events\SourceEvent;
use verbb\metrix\services\Sources;
use yii\base\Event;

Event::on(Sources::class, Sources::EVENT_BEFORE_SAVE_SOURCE, function(SourceEvent $event) {
    $source = $event->source;
    $isNew = $event->isNew;
    // ...
});

The afterSaveSource event

The event that is triggered after a source is saved.

use verbb\metrix\events\SourceEvent;
use verbb\metrix\services\Sources;
use yii\base\Event;

Event::on(Sources::class, Sources::EVENT_AFTER_SAVE_SOURCE, function(SourceEvent $event) {
    $source = $event->source;
    $isNew = $event->isNew;
    // ...
});

The beforeDeleteSource event

The event that is triggered before a source is deleted.

use verbb\metrix\events\SourceEvent;
use verbb\metrix\services\Sources;
use yii\base\Event;

Event::on(Sources::class, Sources::EVENT_BEFORE_DELETE_SOURCE, function(SourceEvent $event) {
    $source = $event->source;
    // ...
});

The afterDeleteSource event

The event that is triggered after a source is deleted.

use verbb\metrix\events\SourceEvent;
use verbb\metrix\services\Sources;
use yii\base\Event;

Event::on(Sources::class, Sources::EVENT_AFTER_DELETE_SOURCE, function(SourceEvent $event) {
    $source = $event->source;
    // ...
});

View Events

The beforeSaveView event

The event that is triggered before a view is saved.

use verbb\metrix\events\ViewEvent;
use verbb\metrix\services\Views;
use yii\base\Event;

Event::on(Views::class, Views::EVENT_BEFORE_SAVE_SOURCE, function(ViewEvent $event) {
    $view = $event->view;
    $isNew = $event->isNew;
    // ...
});

The afterSaveView event

The event that is triggered after a view is saved.

use verbb\metrix\events\ViewEvent;
use verbb\metrix\services\Views;
use yii\base\Event;

Event::on(Views::class, Views::EVENT_AFTER_SAVE_SOURCE, function(ViewEvent $event) {
    $view = $event->view;
    $isNew = $event->isNew;
    // ...
});

The beforeDeleteView event

The event that is triggered before a view is deleted.

use verbb\metrix\events\ViewEvent;
use verbb\metrix\services\Views;
use yii\base\Event;

Event::on(Views::class, Views::EVENT_BEFORE_DELETE_SOURCE, function(ViewEvent $event) {
    $view = $event->view;
    // ...
});

The afterDeleteView event

The event that is triggered after a view is deleted.

use verbb\metrix\events\ViewEvent;
use verbb\metrix\services\Views;
use yii\base\Event;

Event::on(Views::class, Views::EVENT_AFTER_DELETE_SOURCE, function(ViewEvent $event) {
    $view = $event->view;
    // ...
});

Preset Events

The beforeSavePreset event

The event that is triggered before a preset is saved.

use verbb\metrix\events\PresetEvent;
use verbb\metrix\services\Presets;
use yii\base\Event;

Event::on(Presets::class, Presets::EVENT_BEFORE_SAVE_SOURCE, function(PresetEvent $event) {
    $preset = $event->preset;
    $isNew = $event->isNew;
    // ...
});

The afterSavePreset event

The event that is triggered after a preset is saved.

use verbb\metrix\events\PresetEvent;
use verbb\metrix\services\Presets;
use yii\base\Event;

Event::on(Presets::class, Presets::EVENT_AFTER_SAVE_SOURCE, function(PresetEvent $event) {
    $preset = $event->preset;
    $isNew = $event->isNew;
    // ...
});

The beforeDeletePreset event

The event that is triggered before a preset is deleted.

use verbb\metrix\events\PresetEvent;
use verbb\metrix\services\Presets;
use yii\base\Event;

Event::on(Presets::class, Presets::EVENT_BEFORE_DELETE_SOURCE, function(PresetEvent $event) {
    $preset = $event->preset;
    // ...
});

The afterDeletePreset event

The event that is triggered after a preset is deleted.

use verbb\metrix\events\PresetEvent;
use verbb\metrix\services\Presets;
use yii\base\Event;

Event::on(Presets::class, Presets::EVENT_AFTER_DELETE_SOURCE, function(PresetEvent $event) {
    $preset = $event->preset;
    // ...
});

Widget Events

The beforeSaveWidget event

The event that is triggered before a widget is saved.

use verbb\metrix\events\WidgetEvent;
use verbb\metrix\services\Widgets;
use yii\base\Event;

Event::on(Widgets::class, Widgets::EVENT_BEFORE_SAVE_SOURCE, function(WidgetEvent $event) {
    $widget = $event->widget;
    $isNew = $event->isNew;
    // ...
});

The afterSaveWidget event

The event that is triggered after a widget is saved.

use verbb\metrix\events\WidgetEvent;
use verbb\metrix\services\Widgets;
use yii\base\Event;

Event::on(Widgets::class, Widgets::EVENT_AFTER_SAVE_SOURCE, function(WidgetEvent $event) {
    $widget = $event->widget;
    $isNew = $event->isNew;
    // ...
});

The beforeDeleteWidget event

The event that is triggered before a widget is deleted.

use verbb\metrix\events\WidgetEvent;
use verbb\metrix\services\Widgets;
use yii\base\Event;

Event::on(Widgets::class, Widgets::EVENT_BEFORE_DELETE_SOURCE, function(WidgetEvent $event) {
    $widget = $event->widget;
    // ...
});

The afterDeleteWidget event

The event that is triggered after a widget is deleted.

use verbb\metrix\events\WidgetEvent;
use verbb\metrix\services\Widgets;
use yii\base\Event;

Event::on(Widgets::class, Widgets::EVENT_AFTER_DELETE_SOURCE, function(WidgetEvent $event) {
    $widget = $event->widget;
    // ...
});
Last updated: May 4, 2026, 9:12:07 AM
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