70 lines
1.8 KiB
JavaScript
70 lines
1.8 KiB
JavaScript
//= require ../collections/posts
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//= require ../collections/photos
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app.models.Stream = Backbone.Collection.extend({
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initialize : function(models, options){
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var collectionClass = options && options.collection || app.collections.Posts;
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this.items = new collectionClass([], this.collectionOptions());
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},
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collectionOptions :function(){
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var order = this.sortOrder();
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return { comparator : function(item) { return -item[order](); } }
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},
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url : function(){
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return _.any(this.items.models) ? this.timeFilteredPath() : this.basePath()
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},
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fetch: function() {
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if(this.isFetching()){ return false }
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var url = this.url()
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this.deferred = this.items.fetch({
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add : true,
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url : url
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}).done(_.bind(this.triggerFetchedEvents, this))
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},
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isFetching : function(){
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return this.deferred && this.deferred.state() == "pending"
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},
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triggerFetchedEvents : function(resp){
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this.trigger("fetched", this);
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// all loaded?
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var respItems = this.items.parse(resp);
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if(respItems && (respItems.author || respItems.length == 0)) {
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this.trigger("allItemsLoaded", this);
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}
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},
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basePath : function(){
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return document.location.pathname;
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},
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timeFilteredPath : function(){
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return this.basePath() + "?max_time=" + this.maxTime();
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},
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maxTime: function(){
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var lastPost = _.last(this.items.models);
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return lastPost[this.sortOrder()]()
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},
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sortOrder : function() {
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return this.basePath().match(/activity/) ? "interactedAt" : "createdAt"
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},
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add : function(models){
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this.items.add(models)
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},
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preloadOrFetch : function(){ //hai, plz test me THNX
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return $.when(app.hasPreload("stream") ? this.preload() : this.fetch())
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},
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preload : function(){
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this.items.reset(app.parsePreload("stream"))
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this.deferred = $.when(true)
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this.trigger("fetched")
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}
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});
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