138 lines
5.0 KiB
JavaScript
138 lines
5.0 KiB
JavaScript
/* this view should own everything on the page which has controls effecting its operation
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generate other views for the individual editors.
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The render here adds views for each update/handout by delegating to their collections but does not
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generate any html for the surrounding page.
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*/
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CMS.Views.CourseInfoEdit = Backbone.View.extend({
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// takes CMS.Models.CourseInfo as model
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tagName: 'div',
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render: function() {
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// instantiate the ClassInfoUpdateView and delegate the proper dom to it
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new CMS.Views.ClassInfoUpdateView({
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el: this.$('#course-update-view'),
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collection: this.model.get('updates')
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});
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// TODO instantiate the handouts view
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return this;
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}
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});
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// ??? Programming style question: should each of these classes be in separate files?
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CMS.Views.ClassInfoUpdateView = Backbone.View.extend({
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// collection is CourseUpdateCollection
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events: {
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"click .new-update-button" : "onNew",
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"click .save-button" : "onSave",
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"click .cancel-button" : "onCancel",
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"click .edit-button" : "onEdit",
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"click .delete-button" : "onDelete"
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},
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initialize: function() {
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var self = this;
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// instantiates an editor template for each update in the collection
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window.templateLoader.loadRemoteTemplate("course_info_update",
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// TODO Where should the template reside? how to use the static.url to create the path?
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"/static/coffee/src/client_templates/course_info_update.html",
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function (raw_template) {
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self.template = _.template(raw_template);
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self.render();
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}
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);
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},
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render: function () {
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// iterate over updates and create views for each using the template
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var updateEle = this.$el.find("#course-update-list");
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// remove and then add all children
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$(updateEle).empty();
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var self = this;
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this.collection.each(function (update) {
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var newEle = self.template({ updateModel : update });
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$(updateEle).append(newEle);
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});
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this.$el.find(".new-update-form").hide();
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return this;
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},
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onNew: function(event) {
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// create new obj, insert into collection, and render this one ele overriding the hidden attr
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var newModel = new CMS.Models.CourseUpdate();
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this.collection.add(newModel, {at : 0});
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var newForm = this.template({ updateModel : newModel });
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var updateEle = this.$el.find("#course-update-list");
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$(updateEle).append(newForm);
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$(newForm).find(".new-update-form").show();
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},
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onSave: function(event) {
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var targetModel = this.eventModel(event);
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targetModel.set({ date : this.dateEntry(event).val(), content : this.contentEntry(event).val() });
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// push change to display, hide the editor, submit the change
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$(this.dateDisplay(event)).val(targetModel.get('date'));
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$(this.contentDisplay(event)).val(targetModel.get('content'));
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$(this.editor(event)).hide();
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targetModel.save();
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},
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onCancel: function(event) {
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// change editor contents back to model values and hide the editor
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$(this.editor(event)).hide();
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var targetModel = this.eventModel(event);
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$(this.dateEntry(event)).val(targetModel.get('date'));
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$(this.contentEntry(event)).val(targetModel.get('content'));
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},
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onEdit: function(event) {
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$(this.editor(event)).show();
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},
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onDelete: function(event) {
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// TODO ask for confirmation
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// remove the dom element and delete the model
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var targetModel = this.eventModel(event);
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this.modelDom(event).remove();
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var cacheThis = this;
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targetModel.destroy({success : function (model, response) {
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cacheThis.collection.fetch({success : function() {cacheThis.render();}});
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}
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});
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},
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// Dereferencing from events to screen elements
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eventModel: function(event) {
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// not sure if it should be currentTarget or delegateTarget
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return this.collection.getByCid($(event.currentTarget).attr("name"));
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},
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modelDom: function(event) {
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return $(event.currentTarget).closest("li");
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},
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editor: function(event) {
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var li = $(event.currentTarget).closest("li");
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if (li) return $(li).find("form").first();
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},
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dateEntry: function(event) {
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var li = $(event.currentTarget).closest("li");
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if (li) return $(li).find("#date-entry").first();
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},
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contentEntry: function(event) {
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return $(event.currentTarget).closest("li").find(".new-update-content").first();
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},
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dateDisplay: function(event) {
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return $(event.currentTarget).closest("li").find("#date-display").first();
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},
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contentDisplay: function(event) {
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return $(event.currentTarget).closest("li").find(".update-contents").first();
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}
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});
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