Tech Tip: Utility method that validates the existence of a table or a field from a name
PRODUCT: 4D | VERSION: 19 | PLATFORM: Mac & Win
Published On: July 11, 2022
The following method utilizes the 4D datastore to provide a simple way to validate the existence of a table or a field based on the name.
| #DECLARE($tableName : Text; $fieldName : Text)->$valid : Boolean Case of : (Count parameters=2) $valid:=(ds[$tableName][$fieldName]#Null) : (Count parameters=1) $valid:=(ds[$tableName]#Null) Else $valid:=False End case |