Marionette stores a collection for various item views

Question

Marionette stores a collection for various item views

I am currently working on a project involving a composite view called QueueItems, with each item in the collection having its own itemView for modification. The challenge lies in allowing each element to select from multiple tag collections like States, Companies, etc. I am uncertain about how to integrate this functionality into individual item views without making repeated calls. To address this concern, I have placed the collection in the composite view. However, I now face the issue of not knowing how to access it and determine if the ajax call to fetch the collection was successful.

Any thoughts or suggestions would be greatly appreciated. Thank you!

javascript ajax backbone.js marionette

Answer 1

Answer №1

One approach is to store the collections in a central location that can be easily accessed globally. A common method is attaching them to the Application object during application bootstrapping.

App.States = new StatesCollection();
App.States.fetch();

If you have the collection within your CompositeView object, you can pass it to each child using the childViewOptions parameter.

var QueueItems = Marionette.CompositeView.extend({
  childViewOptions: {
    states: this.states
  },

  initialize: function() {
     this.states = new StatesCollection();
     this.states.fetch();
  }
}

In the childView initialize function, you can then grab the collection.

var QueueItem = Marionette.ItemView.extend({
  initialize: function(options) {
    this.states = options.states;
  }
}

To ensure that the collection is always up-to-date, you can add a listener to your ItemView to trigger a re-render whenever the collection is synced or reset. This way, the view will automatically update whenever the collection changes.

var QueueItem = Marionette.ItemView.extend({
  initialize: function(options) {
    this.states = options.states;
    this.listenTo(this.states, 'sync reset', this.render);
  }
}

Answer 2

One approach is to store the collections in a central location that can be easily accessed globally. A common method is attaching them to the Application object during application bootstrapping.

App.States = new StatesCollection();
App.States.fetch();

If you have the collection within your CompositeView object, you can pass it to each child using the childViewOptions parameter.

var QueueItems = Marionette.CompositeView.extend({
  childViewOptions: {
    states: this.states
  },

  initialize: function() {
     this.states = new StatesCollection();
     this.states.fetch();
  }
}

In the childView initialize function, you can then grab the collection.

var QueueItem = Marionette.ItemView.extend({
  initialize: function(options) {
    this.states = options.states;
  }
}

To ensure that the collection is always up-to-date, you can add a listener to your ItemView to trigger a re-render whenever the collection is synced or reset. This way, the view will automatically update whenever the collection changes.

var QueueItem = Marionette.ItemView.extend({
  initialize: function(options) {
    this.states = options.states;
    this.listenTo(this.states, 'sync reset', this.render);
  }
}

Marionette stores a collection for various item views

Answer №1

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