Implement waiter ordering and improvements

app/models/list.rb

@@ -17,6 +17,7 @@ class List
   belongs_to :supplier
   belongs_to :section
   has_and_belongs_to_many :users, storing_keys: true
+  has_and_belongs_to_many :employees, storing_keys: true
 
   attr_protected :supplier_id
 
@@ -76,6 +77,17 @@ class List
     list
   end
 
+  # Create, a list given a table and a employee
+  def self.from_table_by_employee table, employee
+    unless list = table.active_list
+      list = new table: table, section_id: table.section_id
+      list.supplier_id = table.supplier_id
+      list.add_employee employee
+      list.save
+    end
+    list
+  end
+
   def self.for_supplier(supplier, options = {})
     total_entries = database.view(for_supplier_view({startkey: ["#{supplier.id}\u9999"], endkey: [supplier.id], include_docs: false, reduce: true, descending: true}))
     options[:total_entries] = total_entries
@@ -142,9 +154,7 @@ class List
   def needs_help!
     self.needs_help = true
     if save
-      for user_id in user_ids
-        broadcast_user user_id, 'list_needs_help', id: id
-      end
+      broadcast_users 'list_needs_help', id: id
       broadcast_supplier(supplier_id, 'list_needs_help', id: id)
     end
   end
@@ -152,9 +162,7 @@ class List
   def is_helped!
     self.needs_help = false
     if save
-      for user_id in user_ids
-        broadcast_user user_id, 'list_helped', id: id
-      end
+      broadcast_users 'list_helped', id: id
       broadcast_supplier supplier_id, 'list_helped', id: id
     end
   end
@@ -162,9 +170,7 @@ class List
   def needs_payment!
     self.needs_payment = true
     if save
-      for user_id in user_ids
-        broadcast_user user_id, 'list_needs_payment', id: id
-      end
+      broadcast_users 'list_needs_payment', id: id
       broadcast_supplier supplier_id, 'list_needs_payment', id: id
     end
   end
@@ -173,9 +179,7 @@ class List
     self.is_paid = true
     self.paid_at ||= Time.now
     if save
-      for user_id in user_ids
-        broadcast_user user_id, 'list_is_paid', id: id
-      end
+      broadcast_users 'list_is_paid', id: id
       broadcast_supplier supplier_id, 'list_is_paid', id: id
     end
   end
@@ -192,9 +196,7 @@ class List
         order.section_id = self.section_id
         order.save
       end
-      for user_id in user_ids
-        broadcast_user user_id, 'list_changed_table', list: as_json, section_title: to_table.section.try(:title), from_table_id: from_table
-      end
+      broadcast_users 'list_changed_table', list: as_json, section_title: to_table.section.try(:title), from_table_id: from_table
       broadcast_supplier supplier_id, 'list_changed_table', list: as_json, section_title: to_table.section.try(:title), from_table_id: from_table
     end
   end
@@ -214,7 +216,7 @@ class List
 
   def unlink_user(user)
     changed = join_requests.delete(user.id)
-    changed ||= user_ids.delete(user.id)
+    changed ||= Array.wrap(user_ids).delete(user.id)
     if user.active_list_id == id
       user.active_list_id = nil
       user.save
@@ -265,10 +267,9 @@ class List
     state == 'active'
   end
 
-  def place_order(user, products)
+  def place_order(products, user: nil, employee: nil)
     return false unless products.any?
-    return false unless user
-    order = Order.create list: self, supplier: supplier, user: user, section_id: section_id
+    order = Order.create list: self, supplier: supplier, user: user, employee: employee, section_id: section_id
     return unless order.id
     orders_placed_count = supplier.increment_orders_placed_count!
     loaded_products = self.class.database.load_document products.keys
@@ -279,16 +280,23 @@ class List
     end
     set_price
     save
-    for user_id in user_ids
-      broadcast_user user_id, 'new_order', order: order.with_products_as_json, total_amount: price
-      broadcast_user user_id, 'orders_placed_count', count: orders_placed_count
-    end
+
+
+    broadcast_users 'new_order', order: order.with_products_as_json, total_amount: price
+    broadcast_users 'orders_placed_count', count: orders_placed_count
+
     broadcast_supplier supplier.id, 'list_update', active_model_serializer.new(self).as_json
     broadcast_supplier supplier.id, 'new_order', OrderSerializer.new(order)
     broadcast_supplier supplier.id, 'orders_placed_count', count: orders_placed_count
     order
   end
 
+  def broadcast_users(message, content = {})
+    for user_id in Array.wrap(user_ids)
+      broadcast_user user_id, message, content
+    end
+  end
+
   def as_json(*args)
     super.merge(id: id, table_number: table_number, has_active_orders: has_active_orders? )
   end