86 lines
2.1 KiB
JavaScript
86 lines
2.1 KiB
JavaScript
/**
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A base object we can use to handle models in the Discourse client application.
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@class Model
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@extends Ember.Object
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@uses Discourse.Presence
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@namespace Discourse
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@module Discourse
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**/
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Discourse.Model = Ember.Object.extend(Discourse.Presence, {
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/**
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Our own AJAX handler that handles erronous responses
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@method ajax
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@param {String} url The url to contact
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@param {Object} args The arguments to pass to $.ajax
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**/
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ajax: function(url, args) {
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var oldError = args.error;
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args.error = function(xhr) {
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return oldError($.parseJSON(xhr.responseText).errors);
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};
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return Discourse.ajax(url, args);
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},
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/**
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Update our object from another object
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@method mergeAttributes
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@param {Object} attrs The attributes we want to merge with
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@param {Object} builders Optional builders to use when merging attributes
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**/
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mergeAttributes: function(attrs, builders) {
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var _this = this;
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return Object.keys(attrs, function(k, v) {
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// If they're in a builder we use that
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var builder, col;
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if (typeof v === 'object' && builders && (builder = builders[k])) {
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if (!_this.get(k)) {
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_this.set(k, Em.A());
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}
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col = _this.get(k);
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return v.each(function(obj) {
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col.pushObject(builder.create(obj));
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});
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} else {
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_this.set(k, v);
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}
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});
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}
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});
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Discourse.Model.reopenClass({
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/**
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$.get shortcut that uses Discourse.Url and returns a promise
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**/
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getModelAjax: function(url) {
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var modelClass = this;
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return Discourse.ajax({ url: url, cache: false, dataType: 'json' }).then(function (result) {
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return modelClass.create(result);
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});
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},
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/**
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Given an array of values, return them in a hash
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@method extractByKey
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@param {Object} collection The collection of values
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@param {Object} klass Optional The class to instantiate
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**/
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extractByKey: function(collection, klass) {
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var retval = {};
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if (!collection) return retval;
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collection.each(function(c) {
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retval[c.id] = klass.create(c);
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});
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return retval;
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}
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});
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