Skip to Content (Press Enter)
2023-03-21 09-05-05
m.irfan.azam
101Views
4Comments
Rule Engine and Calculated Fields
Question
Extension
Beginner
Logic

I am looking for a way to define business rules through UI. Later, when we apply rules it will make calculations and save in other atributes in the same entity.

Here is the scenario:-

  • There is an entity with attributes like RegCode, RegCount, RegType, Fee1, Fee2
  • Rule 1: Fee1 = RegCount * 2
  • Rule 2: Fee2 = If RegType = 'A' Then Fee2 = 100 Else Fee2 = 200

Please guide me if you have implemented something similar in OuSystems.

0
0
21 Mar 2023
Copy Link
2023-07-31 05-30-45
Siddharth Mukherji

You can store only the required attributes in the Entity, for calculated attributes you can use aggregate's ( Query)  calculated attributes. If you want to save all required attributes in entity, then you can apply your logic for calculated attributes while  performing CREATE/UPDATE operation in your entity.

0
1
22 Mar 2023
Copy Link
2024-07-05 14-16-55
Daniël Kuhlmann
 
MVP

Your solution is not a rules engine. The idea of a rules engine is you can configure the rules runtime and let the engine evaluate them to a result.

1
0
22 Mar 2023
Copy Link
2023-03-21 09-05-05
m.irfan.azam

Using aggregates will not serve the purpose. 

Daniël Kuhlmann is right about it.




0
0
22 Mar 2023
Copy Link
Community GuidelinesBe kind and respectful, give credit to the original source of content, and search for duplicates before posting.