Files
edx-platform/cms/static/js/models/settings/advanced.js
Don Mitchell 05ec0c11c6 Oops, when i alphabetized i got the value incorrectly.
Fixed cancel to not retain new entries.
2013-02-06 09:08:28 -05:00

214 lines
8.5 KiB
JavaScript

if (!CMS.Models['Settings']) CMS.Models.Settings = {};
CMS.Models.Settings.Advanced = Backbone.Model.extend({
defaults: {
// the properties are whatever the user types in
},
// 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]
initialize: function() {
console.log('in initialize');
},
validate: function(attrs) {
var errors = {};
for (key in attrs) {
if (_.contains(this.blacklistKeys, key)) {
errors[key] = key + " is a reserved keyword or has another editor";
}
}
if (!_.isEmpty(errors)) return errors;
}
});
if (!CMS.Views['Settings']) CMS.Views.Settings = {};
CMS.Views.Settings.Advanced = CMS.Views.ValidatingView.extend({
// Model class is CMS.Models.Settings.Advanced
events : {
'click .delete-button' : "deleteEntry",
'click .save-button' : "saveView",
'click .cancel-button' : "revertView",
'click .new-button' : "addEntry",
// update model on changes
'change #course-advanced-policy-key' : "updateKey",
'change #course-advanced-policy-value' : "updateValue"
// TODO enable/disable save (add disabled class) based on validation & dirty
// TODO enable/disable new button?
},
initialize : function() {
var self = this;
// instantiates an editor template for each update in the collection
window.templateLoader.loadRemoteTemplate("advanced_entry",
"/static/client_templates/advanced_entry.html",
function (raw_template) {
self.template = _.template(raw_template);
self.render();
}
);
this.model.on('error', this.handleValidationError, this);
},
render: function() {
// catch potential outside call before template loaded
if (!this.template) return this;
var listEle$ = this.$el.find('.course-advanced-policy-list');
listEle$.empty();
// same object so manipulations to one keep the other up to date
this.fieldToSelectorMap = this.selectorToField = {};
// iterate through model and produce key : value editors for each property in model.get
var self = this;
_.each(_.sortBy(_.keys(this.model.attributes), _.identity),
function(key) {
listEle$.append(self.template({ key : key, value : self.model.get(key)}));
self.fieldToSelectorMap[key] = key;
});
// insert the empty one
this.addEntry();
// Should this be on an event rather than render?
// var editor = ace.edit('course-advanced-policy-1-value');
// editor.setTheme("ace/theme/monokai");
// editor.getSession().setMode("ace/mode/javascript");
return this;
},
deleteEntry : function(event) {
event.preventDefault();
// find out which entry
var li$ = $(event.currentTarget).closest('li');
// Not data b/c the validation view uses it for a selector
var key = $('.key', li$).attr('id');
delete this.fieldToSelectorMap[key];
if (key !== '__new_advanced_key__') {
this.model.deleteKeys.push(key);
delete this.model[key];
}
li$.remove();
},
saveView : function(event) {
// TODO one last verification scan:
// call validateKey on each to ensure proper format
// check for dupes
this.model.save({
success : function() { window.alert("Saved"); },
error : CMS.ServerError
});
// FIXME don't delete if the validation didn't succeed in the save call
// remove deleted attrs
if (!_.isEmpty(this.model.deleteKeys)) {
var self = this;
// hmmm, not sure how to do this via backbone since we're not destroying the model
$.ajax({
url : this.model.url,
// json to and fro
contentType : "application/json",
dataType : "json",
// delete
type : 'DELETE',
// data
data : JSON.stringify({ deleteKeys : this.model.deleteKeys})
})
.fail(function(hdr, status, error) { CMS.ServerError(self.model, "Deleting keys:" + status); })
.done(function(data, status, error) {
// clear deleteKeys on success
self.model.deleteKeys = [];
});
}
},
revertView : function(event) {
this.model.deleteKeys = [];
var self = this;
this.model.clear({silent : true});
this.model.fetch({
success : function() { self.render(); },
error : CMS.ServerError
});
},
addEntry : function() {
var listEle$ = this.$el.find('.course-advanced-policy-list');
listEle$.append(this.template({ key : "", value : ""}));
// disable the value entry until there's an acceptable key
listEle$.find('.course-advanced-policy-value').addClass('disabled');
this.fieldToSelectorMap['__new_advanced_key__'] = '__new_advanced_key__';
},
updateKey : function(event) {
// old key: either the key as in the model or __new_advanced_key__. That is, it doesn't change as the val changes until val is accepted
var oldKey = $(event.currentTarget).closest('.key').attr('id');
var newKey = $(event.currentTarget).val();
console.log('update ', oldKey, newKey); // REMOVE ME
if (oldKey !== newKey) {
// may erase other errors but difficult to just remove these
this.clearValidationErrors();
if (!this.validateKey(oldKey, newKey)) return;
if (this.model.has(newKey)) {
console.log('dupe key');
var error = {};
error[oldKey] = newKey + " has another entry";
error[newKey] = "Other entry for " + newKey;
this.model.trigger("error", this.model, error);
return false;
}
// explicitly call validate to determine whether to proceed (relying on triggered error means putting continuation in the success
// method which is uglier I think?)
var newEntryModel = {};
// set the new key's value to the old one's
newEntryModel[newKey] = (oldKey === '__new_advanced_key__' ? '' : this.model.get(oldKey));
var validation = this.model.validate(newEntryModel);
if (validation) {
console.log('reserved key');
this.model.trigger("error", this.model, validation);
// abandon update
return;
}
// Now safe to actually do the update
this.model.set(newEntryModel);
delete this.fieldToSelectorMap[oldKey];
if (oldKey !== '__new_advanced_key__') {
// mark the old key for deletion and delete from field maps
this.model.deleteKeys.push(oldKey);
this.model.unset(oldKey) ;
}
else {
// enable the value entry
this.$el.find('.course-advanced-policy-value').removeClass('disabled');
}
// update gui (sets all the ids etc)
$(event.currentTarget).closest('li').replaceWith(this.template({key : newKey, value : this.model.get(newKey) }));
this.fieldToSelectorMap[newKey] = newKey;
}
},
validateKey : function(oldKey, newKey) {
// model validation can't handle malformed keys nor notice if 2 fields have same key; so, need to add that chk here
// TODO ensure there's no spaces or illegal chars
if (_.isEmpty(newKey)) {
console.log('no key');
var error = {};
error[oldKey] = "Key cannot be an empty string";
this.model.trigger("error", this.model, error);
return false;
}
else return true;
},
updateValue : function(event) {
// much simpler than key munging. just update the value
var key = $(event.currentTarget).closest('.row').children('.key').attr('id');
var value = $(event.currentTarget).val();
console.log('updating ', key, value);
this.model.set(key, value, {validate:true});
}
});