Files
edx-platform/cms/static/js/models/settings/advanced.js
2013-02-20 12:23:19 -05:00

63 lines
2.4 KiB
JavaScript

if (!CMS.Models['Settings']) CMS.Models.Settings = {};
CMS.Models.Settings.Advanced = Backbone.Model.extend({
// the key for a newly added policy-- before the user has entered a key value
new_key : "__new_advanced_key__",
defaults: {
// the properties are whatever the user types in (in addition to whatever comes originally from the server)
},
// which keys to send as the deleted keys on next save
deleteKeys : [],
blacklistKeys : [], // an array which the controller should populate directly for now [static not instance based]
validate: function (attrs) {
var errors = {};
for (var key in attrs) {
if (key === this.new_key || _.isEmpty(key)) {
errors[key] = "A key must be entered.";
}
else if (_.contains(this.blacklistKeys, key)) {
errors[key] = key + " is a reserved keyword or has another editor";
}
}
if (!_.isEmpty(errors)) return errors;
},
save : function (attrs, options) {
// wraps the save call w/ the deletion of the removed keys after we know the saved ones worked
options = options ? _.clone(options) : {};
// add saveSuccess to the success
var success = options.success;
options.success = function(model, resp, options) {
model.afterSave(model);
if (success) success(model, resp, options);
};
Backbone.Model.prototype.save.call(this, attrs, options);
},
afterSave : function(self) {
// remove deleted attrs
if (!_.isEmpty(self.deleteKeys)) {
// remove the to be deleted keys from the returned model
_.each(self.deleteKeys, function(key) { self.unset(key); });
// not able to do via backbone since we're not destroying the model
$.ajax({
url : self.url,
// json to and fro
contentType : "application/json",
dataType : "json",
// delete
type : 'DELETE',
// data
data : JSON.stringify({ deleteKeys : self.deleteKeys})
})
.fail(function(hdr, status, error) { CMS.ServerError(self, "Deleting keys:" + status); })
.done(function(data, status, error) {
// clear deleteKeys on success
self.deleteKeys = [];
});
}
}
});