Finance | Project Operations, Human Resources, ...

Call super in Extension class

(0) Share

Report

Posted on by DK ram

Hello,

How can i call super() in extension method?

I'm trying to create extension method for ValidateWrite method in "ProjForecastEmpl" table. I see that the ret = super(), in validate write method. So how can i call the super here in Extension class?

Thank you.

I have the same question (0)

All responses (10)

Answers (0)

Suggested answer

Martin Dráb 237,874 Most Valuable Professional on at

Like (0)

Report

You can't. super() is used with inheritance, not extensions.

Assuming that you're talking abouut CoC (there is also a concept of extension methods meaning something else), use next validateWrite(); to call the actual ProjForecastEmpl.validateWrite() method. And because ProjForecastEmpl.validateWrite() calls super(), it'll be called in your case as well.

Was this reply helpful? Yes No
Suggested answer

Anton Venter 20,345 Super User 2025 Season 2 on at

Like (0)

Report

Hi DK,

The super will be called automatically if you extend it correctly. Have a look at this article:

Class extension - Method wrapping and Chain of Command

Was this reply helpful? Yes No
DK ram 10 on at

Like (0)

Report

HI Martin/Anton,

Thanks for your replies. Im using CoC, and when i have used the following code.

public boolean validateWrite()
{
boolean ok;
Amount amount;

amount = this.orig().SalesPrice;

ok = next validateWrite();

if (this.SalesPrice == 0 && this.SalesPrice != amount)
{
warning(strFmt("@BSS:ProjForecastSalesPrice", this.SalesPrice, amount));
}

if (!this.BASRfcCategoryCode)
{
ok = checkFailed("RFC category is required. Please enter a value.");
}

return ok;
}

It's returning the warning only after closing the form. But user expects this warning to prevent form closing. And when I checked the ValidateWrite method, The ret is calling the super like below. Please suggest what to do.

public boolean validateWrite()
{
ProjValCheckTrans projValCheckTrans = new ProjValCheckTrans();
boolean ret;
ForecastModel forecastModel;
boolean isProjForecastReduced;

isProjForecastReduced = this.isProjForecastReduced();

ret = super();

if (ret)
{
ret = this.checkModel() && ret;
ret = this.checkActivity() && ret;
ret = ProjTable::find(this.ProjId).status().validateWriteBudgetEmpl() && ret;
ret = projValCheckTrans.validateMandatory(this) && ret;

ret = ProjForecastPost::newPostForecastEmpl(this).runCheck() && ret;

if (ret)
{
if (ProjTable::find(this.ProjId).StartDate > this.SchedFromDate)
{
ret= checkFailed("@SYS107206");
}

Was this reply helpful? Yes No
WillWU 22,361 on at

Like (0)

Report
Hi DK ram,

Did you try to put the next validateWrite() method after your logic?

ok= yourcheckgoes; if(ret) { ret = super(); } else { info("......"); } return ok;

And please use insert code function to format your code:

public boolean validateWrite() { boolean ok; Amount amount; amount = this.orig().SalesPrice; ok = next validateWrite(); if (this.SalesPrice == 0 && this.SalesPrice != amount) { warning(strFmt("@BSS:ProjForecastSalesPrice", this.SalesPrice, amount)); } if (!this.BASRfcCategoryCode) { ok = checkFailed("RFC category is required. Please enter a value."); } return ok; } public boolean validateWrite() { ProjValCheckTrans projValCheckTrans = new ProjValCheckTrans(); boolean ret; ForecastModel forecastModel; boolean isProjForecastReduced; isProjForecastReduced = this.isProjForecastReduced(); ret = super(); if (ret) { ret = this.checkModel() && ret; ret = this.checkActivity() && ret; ret = ProjTable::find(this.ProjId).status().validateWriteBudgetEmpl() && ret; ret = projValCheckTrans.validateMandatory(this) && ret; ret = ProjForecastPost::newPostForecastEmpl(this).runCheck() && ret; if (ret) { if (ProjTable::find(this.ProjId).StartDate > this.SchedFromDate) { ret= checkFailed("@SYS107206"); }

Was this reply helpful? Yes No
Martin Dráb 237,874 Most Valuable Professional on at

Like (0)

Report
Please always use Insert > Insert Code to paste source code. If you paste code without indentation, as you did, it's very difficult to read.

Isn't this much better?

public boolean validateWrite() { boolean ok = next validateWrite(); Amount amount = this.orig().SalesPrice; if (this.SalesPrice == 0 && this.SalesPrice != amount) { warning(strFmt("@BSS:ProjForecastSalesPrice", this.SalesPrice, amount)); } if (!this.BASRfcCategoryCode) { ok = checkFailed("RFC category is required. Please enter a value."); } return ok; }

Which warning are you talking about? Do you realize that your first "if" block doesn't set the return value to false?

Please check it in the debugger if you don't believe us that next validateWrite() calls the method you're extending, including super().

Was this reply helpful? Yes No
DK ram 10 on at

Like (0)

Report
if (!this.BASRfcCategoryCode) { ok = checkFailed("RFC category is required. Please enter a value."); }

Hi Martin,

I talking about second if block. I even debugged the code, And i see that boolean is returning False, but the form is still closing and i get the warning message after the form closed.

Was this reply helpful? Yes No
Anton Venter 20,345 Super User 2025 Season 2 on at

Like (0)

Report

I agree with Martin, your first if statement only shows a warning and does not set the return value to false like the second if statement. This might not be enough to stop the form from closing though, you will have to check that.

Was this reply helpful? Yes No
Anton Venter 20,345 Super User 2025 Season 2 on at

Like (0)

Report

Check the form to see what needs to be done. I usually use/override the canClose form method to stop the form from closing.

Was this reply helpful? Yes No
nmaenpaa 101,160 Moderator on at

Like (0)

Report

If your form closes even if validateWrite returns false, it has nothing to do with extensions or Chain of Command in validateWrite method.

Was this reply helpful? Yes No
Vishals786 on at

Like (0)

Report

Hi ,

Whenever you are calling the methods of a standard object - table or a class in an extension. You have to use next keyword.

Your code should look something like below : -

[Extensionof(tablestr(ProjForecastEmpl))]

final class ProjForecastEmpl_Extension

{

public boolean validateWrite(boolean ret)

{

ret = next validateWrite(ret);

// Your condition goes here

}

}

Was this reply helpful? Yes No