Having blank index.php page when save record in new custom module about vtmoduledesigner

[samhast]

do you have an indentifier field? Is necessary. I had that problem to, but when I added an identifier field = problem solved

[mask207]

Thank you, identifier field solved the problem.
I have another question. I'm trying to create a module using existing inventoryproductrel table and it's fields when I add fields to Block & Fields tab in Module Designer.
After making the module, i have this error when I save record:
{"success":false,"error":{"code":"Record you are trying to access is not found","message":"Record you are trying to access is not found"}}
If I let Module Designer creates new table (same name as module name) then everything is fine.
Is it possible to use existing tables & fields for new custom module ?

[mask207]

Don't worry about it, i figured out the issue. The php file from modules/[modulename] has setting of new fields under new table in database, change table in Module Designer doesn't carry the table setting to this file. So the file need to be modified.