don't add values if they already exists

fabric_order_controller.lua

@@ -1,55 +1,58 @@
 local function createui()
-if mem.controls then return end
+--if mem.controls then return end
-
 mem.controls = {
     {
         command = "clear"
     },
     {
-        command = "adddropdown",
-        Y = 1.2,
-        label = "Drawer Controller",
-        selected_id = 1,
-        W = 10,
         X = 0.4,
         H = 0.8,
-        name = "ddController",
+        command = "adddropdown",
         choices = {
             "drawercontroller"
-        }
+        },
+        W = 10,
+        label = "Drawer Controller",
+        selected_id = 1,
+        Y = 1.2,
+        name = "ddController"
     },
     {
-        command = "adddropdown",
-        Y = 3.2,
-        label = "Item name",
-        selected_id = 1,
-        X = 0.4,
-        W = 10,
-        H = 0.8,
-        name = "ddItem",
         choices = {
             "basic_materials:oil_extract",
+            "default:coal_lump",
             "default:cobble",
             "default:copper_ingot",
+            "default:copper_lump",
             "default:gold_ingot",
+            "default:gravel",
             "default:iron_lump",
             "default:mese_crystal",
+            "default:silver_sand",
+            "default:steel_ingot",
             "default:stone",
+            "farming:chocolate_dark",
+            "farming:cocoa_beans",
             "flowers:tulip_black",
             "mesecons_materials:glue",
             "moreblocks:cobble_compressed",
-            "moretrees:rubber_tree_trunk"
+            "moretrees:rubber_tree_trunk",
-        }
+            "technic:chromium_lump",
+            "technic:sulfur_lump"
         },
-    {
+        H = 0.8,
-        command = "adddropdown",
+        label = "Item name",
-        Y = 5.2,
-        label = "Destination",
         selected_id = 1,
         W = 10,
+        command = "adddropdown",
+        Y = 3.2,
+        X = 0.4,
+        name = "ddItem"
+    },
+    {
         X = 0.4,
         H = 0.8,
-        name = "ddDestination",
+        command = "adddropdown",
         choices = {
             "Tacit:cobblecompress",
             "Tacit:extract",
@@ -60,81 +63,92 @@ mem.controls =   {
             "Tacit:obsidian",
             "Tacit:plasticin",
             "Tacit:refab"
-        }
+        },
+        W = 10,
+        label = "Destination",
+        selected_id = 1,
+        Y = 5.2,
+        name = "ddDestination"
     },
     {
         default = "99",
-        label = "Stack size",
-        X = 0.7,
-        W = 1.2,
         command = "addfield",
-        Y = 7.1,
         name = "fldStackSize",
-        H = 0.8
+        W = 1.2,
+        X = 0.7,
+        Y = 7.1,
+        H = 0.8,
+        label = "Stack size"
     },
     {
         default = "1",
-        label = "Stacks count",
-        X = 1.9,
-        W = 1.6,
         command = "addfield",
-        Y = 7.1,
         name = "fldStacksCount",
-        H = 0.8
+        W = 1.6,
+        X = 1.9,
+        Y = 7.1,
+        H = 0.8,
+        label = "Stacks count"
     },
     {
-        label = "Order",
+        command = "addbutton",
+        name = "btnOrder",
         W = 1.6,
         X = 3.2,
-        command = "addbutton",
+        Y = 6.8,
         H = 0.8,
-        name = "btnOrder",
+        label = "Order"
-        Y = 6.8
     },
     {
         default = "",
-        label = "Enter drawer controller or select one",
-        X = 0.7,
-        W = 9.2,
         command = "addfield",
-        Y = 0.7,
         name = "fldController",
-        H = 0.8
-    },
-    {
-        default = "",
-        label = "Enter item id or select one",
         W = 9.2,
         X = 0.7,
-        command = "addfield",
+        Y = 0.7,
-        Y = 2.7,
-        name = "fldItem",
-        H = 0.8
-    },
-    {
-        default = "",
-        label = "Enter destination name or select one",
-        X = 0.7,
-        W = 9.2,
-        command = "addfield",
         H = 0.8,
+        label = "Enter drawer controller or select one"
+    },
+    {
+        default = "",
+        command = "addfield",
+        name = "fldItem",
+        W = 9.2,
+        X = 0.7,
+        Y = 2.7,
+        H = 0.8,
+        label = "Enter item id or select one"
+    },
+    {
+        default = "",
+        command = "addfield",
+        X = 0.7,
+        W = 9.2,
         name = "fldDestination",
-        Y = 4.7
+        Y = 4.7,
+        H = 0.8,
+        label = "Enter destination name or select one"
     },
     {
         command = "addlabel",
-        label = "Created with SX Digi labs Touch Designer",
         Y = 8.11,
-        X = 7.18
+        X = 7.18,
+        label = "Created with SX Digi labs Touch Designer"
     }
 }
-
 end
 local function addvalues(control, value)
   local controls = mem.controls
   
   for k,v in pairs(controls) do
     if v.name and v.name == control then 
+      
+      for kc,vc in pairs(v.choices) do
+        if vc == value then
+          return
+        end
+      end
+      
       table.insert(v.choices, value)
       table.sort(v.choices)
     end
@@ -144,11 +158,8 @@ local function addvalues(control, value)
 end
 
 if event.type == "program" then
-  mem = {}
   createui()
   digiline_send("touch", mem.controls)
-  mem.orderNumber = 0
-  
 end
 
 if event.type == "digiline" then