Form Data Source Method override COC D365FO

Form Data Source Method override COC D365FO

Here is the sample how can you override the form data-source event.

In this demo we have created the extension of HcmWorker form data-source (HcmWorker).

Here is the original method  of HcmWorker data-source 

    public boolean validateWrite()

        {

            boolean ret;

            ret = super();

            if (ret)

            {

                partyForm.validateWrite();

            }

            return ret;

        }

Here is the  code to create form data-source extension class 

[ExtensionOf(formdatasourcestr(HcmWorker, HcmWorker))]

final class Demo_Extension

{

}

Here is the code to override the data-source method through COC.

[ExtensionOf(formdatasourcestr(HcmWorker, HcmWorker))]

final class Demo_Extension

{

    public boolean validateWrite()

    {

        boolean ret;

        ret  =  next validateWrite();

        if (ret)

        {

                    

           /// do your code here

        }

        return ret;

    }

}

In last perform Build & Sync.

Important 

Feature available from Build 8.1 PU-20

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Default parameters can be wrapped In extension classes COC

Default parameters can be wrapped In extension classes

In Build-8.1 you can override the default parameter by using class extension COC.

Code reference 

There is the method in HCMWORKER table isEmployee in which you can see the default value set with _validFrom & _validto.

  public HcmIsEmployee isEmployee(

        utcdatetime   _validFrom = DateTimeUtil::utcNow(),

        utcdatetime   _validTo = _validFrom

    )

    {

        HcmIsEmployee   hcmIsEmployee = NoYes::No;

        HcmEmployment   hcmEmployment;

        unchecked(Uncheck::XDS)

        {

            if (prmisDefault(_validFrom) && prmisDefault(_validTo))

            {

                select firstonly RecId from hcmEmployment

                where hcmEmployment.Worker == this.RecId

                &&    hcmEmployment.EmploymentType == HcmEmploymentType::Employee;

            }

            else if (_validFrom == _validTo)

            {

                select firstonly ValidTimeState(_validFrom) RecId from hcmEmployment

                where hcmEmployment.Worker == this.RecId

                &&    hcmEmployment.EmploymentType == HcmEmploymentType::Employee;

            }

            else

            {

                select firstonly ValidTimeState(_validFrom, _validTo) RecId from hcmEmployment

                where hcmEmployment.Worker == this.RecId

                &&    hcmEmployment.EmploymentType == HcmEmploymentType::Employee;

            }

            if (hcmEmployment.RecId != 0)

            {

                hcmIsEmployee = NoYes::Yes;

            }

            return hcmIsEmployee;

        }

    }

So we created extension class of Hcmworker with name of Demo_Extension and override the method using COC.

[ExtensionOf(tableStr(HcmWorker))]

final class Demo_Extension

{

    public HcmIsEmployee isEmployee(

        utcdatetime   _validFrom,

        utcdatetime   _validTo 

    )

    {

        HcmIsEmployee   hcmIsEmployee = NoYes::No;

        HcmEmployment   hcmEmployment;

      

        next isEmployee(_validFrom,_validTo);

               unchecked(Uncheck::XDS)

        {

           if (_validFrom == _validTo)

            {

                select firstonly ValidTimeState(_validFrom) RecId from hcmEmployment

                where hcmEmployment.Worker == this.RecId

                &&    hcmEmployment.EmploymentType == HcmEmploymentType::Employee;

            }

            else

            {

                select firstonly ValidTimeState(_validFrom, _validTo) RecId from hcmEmployment

                where hcmEmployment.Worker == this.RecId

                &&    hcmEmployment.EmploymentType == HcmEmploymentType::Employee;

            }

            if (hcmEmployment.RecId != 0)

            {

                hcmIsEmployee = NoYes::Yes;

            }

            return hcmIsEmployee;

        }

    }

}

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