Initial commit

lib/assets/javascripts/dashboard/data/like-model.js

@@ -0,0 +1,68 @@
+var Backbone = require('backbone');
+var _ = require('underscore');
+const checkAndBuildOpts = require('builder/helpers/required-opts');
+
+const REQUIRED_OPTS = [
+  'config'
+];
+
+var LikeModel = Backbone.Model.extend({
+
+  defaults: {
+    likeable: true
+  },
+
+  url: function (method) {
+    var version = this._config.urlVersion('like', method);
+    return `${this._config.get('base_url')}/api/${version}/viz/${this.get('vis_id')}/like`;
+  },
+
+  initialize: function (attrs, options) {
+    checkAndBuildOpts(options, REQUIRED_OPTS, this);
+
+    _.bindAll(this, '_onSaveError');
+
+    this.on('destroy', function () {
+      this.set({
+        liked: false,
+        likes: this.get('likes') - 1
+      });
+    }, this);
+  },
+
+  _onSaveError: function (model, response) {
+    this.trigger('error', {
+      status: response.status,
+      statusText: response.statusText
+    });
+  },
+
+  toggleLiked: function () {
+    if (this.get('liked')) {
+      this.destroy();
+    } else {
+      this.set({ id: null }, { silent: true });
+      this.save({}, { error: this._onSaveError });
+    }
+  }
+
+}, {
+
+  newByVisData: function (opts) {
+    var d = _.defaults({
+      id: opts.liked ? opts.vis_id : null
+    }, _.omit(opts, 'url', 'config'));
+
+    var model = new LikeModel(d, {
+      config: opts.config
+    });
+
+    if (opts.url) {
+      model.url = opts.url;
+    }
+
+    return model;
+  }
+});
+
+module.exports = LikeModel;