JSON api serializers for suppliers

app/assets/javascripts/supplier/app/models/order.js.coffee

@@ -1,11 +1,12 @@
 attr = DS.attr
 App.Order = DS.Model.extend
   state: attr('string')
-  list: DS.belongsTo('list')
   price: attr('number')
-  section: DS.belongsTo('section')
-  section_id: attr('string')
-  product_orders: DS.hasMany('product_order')
+
+  list: DS.belongsTo('list', async: false)
+  section: DS.belongsTo('section', async: false)
+  product_orders: DS.hasMany('product_order', async: false)
+  user: DS.belongsTo 'user', async: false
 
   active: (-> @get('state') == 'active').property('state')
   delivered: (-> @get('state') == 'delivered').property('state')

app/assets/javascripts/supplier/app/models/user.js.coffee

@@ -6,8 +6,7 @@ App.User= DS.Model.extend
   avatar: attr('string')
   list: DS.belongsTo('list') # in ember scope not many to many (yet)
   join_requests: DS.hasMany('join_request')
-  avatar_tag: (->
-    return unless avatar = @get('avatar')
+  avatar_tag: Ember.computed 'avatar', 'name', ->
+    avatar = @get('avatar') || "#{$asset_path}/supplier/unknown-avatar.png"
     name = @get('name')
-    "<img src='#{avatar}' alt='#{name}' title='#{name}' class='user-avatar-image #{@get('provider')}'>".htmlSafe()
-  ).property('avatar', 'name')
+    "<img src='#{avatar}' alt='#{name}' title='#{name}' class='user-avatar-image #{@get('provider', '')}'>".htmlSafe()