İçereği Atla
Menü
Bu soru işaretlendi
1 Cevapla
10121 Görünümler

Has anyone known about custom_events in Odoo 12 javascript? also how to call or trigger a custom_events?

example\ https://github.com/odoo/odoo/blob/12.0/addons/web/static/src/js/fields/basic_fields.js#L153

Avatar
Vazgeç
En İyi Yanıt

Odoo has a custome_event the same HTML as the DOM event.

The difference is DOM event bubble up through DOM nodes while odoo custom_event bubble up thought odoo inheritance (parent/child widget) chain.

The main purpose of the custom_events is widget decupling (loos binding) so there is no hardcoded dependency between child to parent and the widget can move around freely while structure change. child widget just triggers custom_event and it's parents responsibility to listen to an event and react upon it.

Before custom_event there are several instances where a child call parent using ugly code like this.get_parent().get_parent().call_method()

Post here if you need an example or more explanation 
=================== 
`field_change` custom_event trigger_up from here


var GrandParentWidget = Widget.extend({
       custom_events: {
            my_custom_event : '_onMyCustomEvent',
      },
     _onMyCustomEvent: function(ev) {
          console.log('event triggred', ev.data)
     }                                                      
})

var ParentWidget = GrandParentWidget.extend({
           .......
})

var ChildWidget = ParentWidget.extend({
      'click .my_link': '_onLinkClick'
      _onLinkClick: function () {
             this.trigger_up('my_custom_event', {data: {}}  
      }
})                                                                                                                                                                                                           

In the above example ChildWidget trigger_up`my_custome_event' and it will listen by GrandParent up in the inheritance chain.  

Avatar
Vazgeç
Üretici

Thanks for answering

So, if the class has custom_events like:

custom_events: _.extend({}, DebouncedField.prototype.custom_events, {

field_changed: '_onFieldChanged',

}),

I still confuse how and when the event is fired

I have update the answer

Üretici

Oh I see. Thank you very much Ravi. It's very clear explanation

İlgili Gönderiler Cevaplar Görünümler Aktivite
0
Eki 18
4061
0
Eki 18
7497
3
Ara 23
30720
1
May 21
15853
1
Nis 21
4548