Wallpaper frame selected when post has one photo

app/assets/javascripts/app/models/post.js

@@ -12,6 +12,15 @@ app.models.Post = Backbone.Model.extend({
     this.participations = this.participations || new app.collections.Participations([], {post : this}); // load in the user like initially
   },
 
+  setFrameName : function(){
+    this.set({frame_name : findTheme(this)})
+
+
+    function findTheme(model) {
+      return model.get("photos").length == 1 ? "Wallpaper" : "Day"
+    }
+  },
+
   createdAt : function() {
     return this.timeOf("created_at");
   },

app/assets/javascripts/app/views/template_picker_view.js

@@ -6,7 +6,7 @@ app.views.TemplatePicker = app.views.Base.extend({
   },
 
   initialize : function(){
-    this.model.set({frame_name : 'Day'})
+    this.model.setFrameName()
   },
 
   postRenderTemplate : function(){

spec/javascripts/app/views/template_picker_view_spec.js

@@ -1,12 +1,41 @@
 describe("app.views.TemplatePicker", function(){
   beforeEach(function(){
     this.model = factory.statusMessage({frame_name: undefined})
-    this.view = new app.views.TemplatePicker({model : this.model })
+    this.view = createView(this.model)
   })
 
+  function createView(model){
+    return new app.views.TemplatePicker({model : model })
+  }
+
   describe("initialization", function(){
+    context("when the model has photos:", function(){
+      context("one photo", function(){
+        beforeEach(function(){
+          this.model.set({photos : [factory.photoAttrs()]})
+        })
+
+        it("sets the frame name to Wallpaper", function(){
+          createView(this.model)
+          expect(this.model.get("frame_name")).toBe("Wallpaper")
+        })
+      })
+
+      context("two photos", function(){
+        beforeEach(function(){
+          this.model.set({photos : [factory.photoAttrs(), factory.photoAttrs()]})
+        })
+
+        it("sets the frame name to Wallpaper", function(){
+          createView(this.model)
+          expect(this.model.get("frame_name")).toBe("Day")
+        })
+      })
+    })
+
     it("sets the frame_name of the model to 'Day' by default", function(){
-      expect(this.view.model.get("frame_name")).toBe("Day")
+      createView(this.model)
+      expect(this.model.get("frame_name")).toBe("Day")
     })
   })
 

spec/javascripts/helpers/factory.js

@@ -75,11 +75,12 @@ factory = {
   },
 
   photoAttrs : function(overrides){
+    var id = this.id.next();
     return _.extend({
       author: factory.userAttrs(),
       created_at: "2012-03-27T20:11:52Z",
-      guid: "8b0db16a4c4307b2",
+      guid: "8b0db16a4c4307b2" + id,
-      id: 117,
+      id: id,
       sizes: {
           large: "http://localhost:3000/uploads/images/scaled_full_d85410bd19db1016894c.jpg",
           medium: "http://localhost:3000/uploads/images/thumb_medium_d85410bd19db1016894c.jpg",