public/js/collections/tag-collection.js

   1 'use strict';
   2
   3 var Backbone = require('backbone');
   4 var context = require('gitter-web-client-context');
   5 var validateTag = require('gitter-web-shared/validation/validate-tag').validateTag;
   6
   7 var TagModel = Backbone.Model.extend({
   8   defaults: {
   9     value: ''
  10   },
  11
  12   //we get an array of tag strings from the server
  13   //rather than { value: ''  }
  14   //we need to parse them here
  15   initialize: function(tag) {
  16     this.set('value', tag);
  17   },
  18
  19   validate: function(attrs) {
  20     var isStaff = context.isStaff();
  21     var result = validateTag(attrs.value, isStaff);
  22
  23     if (result.messages.length > 0) {
  24       return result.messages.join(' ');
  25     }
  26   }
  27 });
  28
  29 var TagCollection = Backbone.Collection.extend({
  30   model: TagModel,
  31
  32   addModel: function(model) {
  33     var val = model.get('value');
  34
  35     //if there is a duplicate fire error
  36     if (this.where({ value: val }).length) {
  37       this.trigger('tag:error:duplicate', val);
  38     } else {
  39       this.add(model);
  40       this.trigger('tag:added', val);
  41     }
  42   },
  43
  44   toJSON: function() {
  45     return this.reduce(function(memo, model) {
  46       memo.push(model.get('value'));
  47       return memo;
  48     }, []).join(',');
  49   }
  50 });
  51
  52 module.exports = {
  53   TagCollection: TagCollection,
  54   TagModel: TagModel
  55 };