Category Archives: Strategies

Derivation is not available in the database

This article was moved to MDriven Wiki – Derivation is not available in the database Derivation is a very good way to remove the need for repeating definitions. Suppose you have this model: An apartment has Occupants that may have … Continue reading

Posted in CO-Unique, Declarative, OCL | 1 Comment

Custom controls in ViewModel aided Views

This article was moved to MDriven Wiki – Custom controls in ViewModel aided Views I have written on numerous occasions on how to mold data from your model into viewmodels using the ViewModel-designer in Modlr. I have also made a … Continue reading

Posted in Declarative, Modlr, ViewModel, WECPOF, WPF | 4 Comments

Unique constraints on 1 to 1 links

This article was moved to MDriven Wiki – Unique constraints on 1 to 1 links When you have a 1 to 1 relation between classes a small (e) appears on the link that is embedded (where the key is actually … Continue reading

Posted in Declarative, MDrivenServer | Leave a comment

Business Delete Rules

This article was moved to MDriven Wiki – Business Delete Rules When you create a model – deletion of objects is seldom on top of your mind. But sooner or later users are going to want to remove objects from … Continue reading

Posted in Declarative, Modlr, WECPOF | Leave a comment

BorPred–Things are what you make them–so why not try easy

Almost all systems has the need to export and import data. Since it is always very easy to hack something up that does the job – the solution is often to hack something up that does the job – and … Continue reading

Posted in Declarative, MDrivenServer, ViewModel, WECPOF | 1 Comment

You will sooner or later need a Deep Clone

This article has been moved to our wiki: https://wiki.mdriven.net/index.php/Deepclone

Posted in CO-Unique, Declarative, SourceCode, ViewModel | 1 Comment

Information hygiene

This article was moved to MDriven Wiki – Information hygiene Everything starts up small – and some things never stops to grow. Pretty soon you have a big system on your hands that needs to send data here and there … Continue reading

Posted in Declarative, MDrivenServer, Modlr | 12 Comments

Type mapping, OR-Mapping

This article was moved to MDriven Wiki – Type mapping, OR-Mapping When modeling you can use any type name for attribute types. This name is what we call a “Common name”. When ECO is given the model and tries to … Continue reading

Posted in CO-Unique, Declarative, Modlr | Leave a comment

Different types of bugs

This article was moved to MDriven Wiki – Different types of bugs The typing-bug : You did not actually type the things you wanted to type The code-bug: Your code does not actually do the things you intended it to … Continue reading

Posted in Declarative, Strategies | 1 Comment