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CoC applied on same method by developers

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Posted on by CU10121822-0

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Hi team,

Suppose, In table SalesTable > Insert method, two developers wrote code in Extension class by using CoC method.

For example -

Developer 1:

ExtensionOf(Tablestr(SalesTable))

final class SalesTable_extension
{

public void insert()

{

// Custom code

next insert();

}
}

Developer 2:

ExtensionOf(Tablestr(SalesTable))

final class SalesTableTwo_extension
{

public void insert()

{

next insert();

// Custom code

}
}

here my question is in which order the both code will execute? I mean which code will first execute and then the next one.

Kindly elaborate please.

thanks!

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Dynamics 365 Finance

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Martin Dráb 239,762 Most Valuable Professional on at

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This is what F&O documentation (Class extension - Method wrapping and Chain of Command) says:

The system randomly runs one of these methods, such as the doSomething method of the BusinessLogic1_Extension class. When the call to the next doSomething method occurs, the system randomly picks another method in the CoC.

Therefore if you need two things that runs in a specific order, using two CoC extensions of the same method isn't a viable design. You'll need to do it differently.

By the way, two developers working on the same product typically shouldn't create two extensions of the same object. You'll may have two extensions when you have two products in a same environments, such as an ISV solution and customer-specific adjustments.

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CU10121822-0 314 on at

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Thanks Martin,

What I understood, We shouldn't write extension for same objects multiple times. We should use the existing one only which is already present.

As you said Therefore if you need two things that runs in a specific order, using two CoC extensions of the same method isn't a viable design. You'll need to do it differently.

Kindly elaborate, what will be the alternative solution?

thanks!

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Martin Dráb 239,762 Most Valuable Professional on at

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What you should do depends on what exactly you want to achieve. If you want to discuss a particular scenario, please tell us what it is.

Just to give you one example, you may have a CoC extension of insert() calling a class method (e.g. new MyBusinessProcess().doStuff()) and another model extending doStuff() method.

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