backbone.js - Backbone.Marionette - Accessing variables in the ItemView template or CompositeView template -

here want access variable or list of variables passed when initalizing new view corresponding template.

code example

creating list view

@taskit.module "tasks.list", (list, taskit, backbone, marionette, $, _) ->     class list.newtask extends taskit.views.itemview         template: jst["backbone/taskit/tasks/tasks/list/_templates/new_task"] 

template above list view

<div id="new-task-form"> </div> 

initializing itemview

view = new taskit.tasks.list.newtask     project_id: "project_id" 

here question how can access "project_id" variable template.

<%= project_id %> #is not working 

in backbone can achieved

$(@el).html(@template({task: @model, project_id: "project_id"})) 

how in marionette.js?

you can provide own method serialize data:

https://github.com/marionettejs/backbone.marionette/blob/master/docs/marionette.itemview.md#itemview-serializedata

backbone.marionette.itemview.extend({   serializedata: function(){     var data = this.model.tojson();     data.project_id = this.project_id;      return data;   } });