engine/vendor/assets/javascripts/locomotive/backbone.sync.js

114 lines
3.4 KiB
JavaScript

(function() {
var methodMap = {
'create': 'POST',
'update': 'PUT',
'delete': 'DELETE',
'read' : 'GET'
};
var getUrl = function(object) {
if (!(object && object.url)) return null;
return _.isFunction(object.url) ? object.url() : object.url;
};
var urlError = function() {
throw new Error("A 'url' property or function must be specified");
};
Backbone.sync = function(method, model, options) {
var type = methodMap[method];
// Default JSON-request options.
var params = _.extend({
type: type,
dataType: 'json',
beforeSend: function( xhr ) {
var token = $('meta[name="csrf-token"]').attr('content');
if (token) xhr.setRequestHeader('X-CSRF-Token', token);
}
}, options);
if (!params.url) {
params.url = getUrl(model) || urlError();
}
// Ensure that we have the appropriate request data.
if (!params.data && model && (method == 'create' || method == 'update')) {
params.contentType = 'application/json';
var data = {}
if(model.paramRoot) {
data[model.paramRoot] = model.toJSON();
} else {
data = model.toJSON();
}
if (typeof(FormData) != 'undefined') { // XHR2
var formData = new FormData();
formData.append('xhr', true); // fix a bug with POW which happens to not like empty form
if (typeof(window.content_locale) != 'undefined' && window.content_locale != '')
formData.append('content_locale', window.content_locale);
var _buildParams = function(prefix, obj, fn) { // code grabbed from jquery
if (jQuery.isArray(obj)) {
if (obj.length == 0) { // empty arrays
fn(prefix, obj);
return;
}
jQuery.each(obj, function(i, v) {
if (/\[\]$/.test(prefix)) { // rbracket
fn(prefix, v);
} else {
_buildParams(prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, fn);
}
});
} else if (obj != null && typeof obj === "object" && !(obj instanceof File)) {
for (var name in obj) {
_buildParams(prefix + "[" + name + "]", obj[name], fn);
}
} else {
fn(prefix, obj);
}
}
for (var prefix in data) {
_buildParams(prefix, data[prefix], function(key, value) {
// console.log('append ' + key + ', ' + value + ', is Array = ' + jQuery.isArray(value));
if (jQuery.isArray(value) && value.length == 0)
formData.append(key + '[]', '');
else
if (value != null)
formData.append(key, value);
});
}
params.data = formData;
params.processData = false;
params.contentType = false;
} else {
params.data = JSON.stringify(data);
}
}
// Don't process data on a non-GET request.
if (params.type !== 'GET') {
params.processData = false;
}
params.complete = function(xhr, textStatus) {
var noticeType = xhr.getResponseHeader('X-Message-Type');
if (noticeType != null) {
var growlType = noticeType == 'notice' ? 'notice' : 'alert'; // for now, only 2 kind of growl messages
$.growl(noticeType, xhr.getResponseHeader('X-Message'));
}
}
// Make the request.
return $.ajax(params);
}
}).call(this);