seperate rails logic for parameters for showing products

app/assets/javascripts/user/quser.js.coffee

@@ -136,9 +136,11 @@ window.Quser=
       row.append($('<td></td>').text(order_txts.join(', ')))
       row.append($('<td class="currency"></td>').html(currency(order.total_amount)))
     foot.append('<tr><td></td><td class="currency"><strong>'+currency(res.total_amount)+'</strong></td></tr>')
-  order_selected_products: (h)->
+  order_selected_products: ()->
     return if $.isEmptyObject(window.active_products_list)
-    h ||= {}
+    h = {}
+    match = window.document.URL.toString().match('table_id=([0-9a-zA-Z]+)')
+    h['table_id'] = match[1] if match
     for product_id, info of window.active_products_list
       h['products['+product_id+']'] = info.number
     $.post(data_host + '/user/order_selected_products', h, ((res) -> Quser.handle_response(res)), 'json')
@@ -170,11 +172,23 @@ window.Quser=
     table.show() 
 
   load_active_list_products: ->
-    Quser.populate_products_table('/user/list_products.json', true)
-  load_table_products: (table_id, occupied)->
-    Quser.populate_products_table('/user/list_products_for_table.json?table_id='+table_id, !occupied)
-  populate_products_table: (src, include_order_buttons)->
+    Quser.populate_products_table('/user/list_products.json')
+  load_table_products: ->
+    match = window.document.URL.toString().match('table_id=([0-9a-zA-Z]+)')
+    if match
+      table_id = match[1]
+    else
+      redirect_to 'user_root', {message: 'cannot_identify_table'}
+      return
+    Quser.populate_products_table('/user/list_products_for_table.json?table_id='+table_id)
+  populate_products_table: (src)->
     $.get(data_host + src, (res) ->
+      if res.has_occupied_info
+        include_order_buttons = !res.is_occupied
+        delete(res['has_occupied_info'])
+        delete(res['is_occupied'])
+      else
+        include_order_buttons = true
       body = $('#products-table tbody')
       if res.table_number
         $('.table-number').text(res.table_number)