49) How to write a COC using extension

1) COC for table method : - 


/// <summary>

/// </summary>
[ExtensionOf(tableStr(EntAssetWorkOrderTable))]
final class AVAEntAssetWorkOrderTableDbt_Extension
{
    /// <summary>
    /// validating the Fields to be fill or blank </c> AVAKMPost & AVAYearofIssue </c> Validation perform for this two fields
    /// </summary>
    public boolean validateWrite()
    {
        boolean ret;        

        ret = next validateWrite();

        if(this.workOrderType().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline)
        {
            if (!this.AVAKMPost)
            {
                ret = checkfailed(strFmt("@SYS26332", fieldId2pname(tableNum(EntAssetWorkOrderTable), fieldNum(EntAssetWorkOrderTable, AVAKMPost))));
            }
       
            if (!this.AVAYearofIssue)
            {
                ret = checkfailed(strFmt("@SYS26332", fieldId2pname(tableNum(EntAssetWorkOrderTable), fieldNum(EntAssetWorkOrderTable, AVAYearofIssue))));
            }
        }

        return ret;
    }

    // <summary>
    // To fill the Year of issue field with the current year on system
    // </summary>
    public void initValue()
    {
        next initValue();

        if((this.workOrderType().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline))
        {
            this.AVAYearofIssue = int2Str(year(DateTimeUtil::getSystemDate(DateTimeUtil::getUserPreferredTimeZone())));
        }
    }

}

======================================================================================
2)  COC for Form  data source fields : -

/// <summary>
/// The <c>AVAEntAssetWorkOrderTableCreateFrm_Extension</c> xxxxxxxx</c> form.
/// </summary>
[ExtensionOf(formDataFieldStr(EntAssetWorkOrderTableCreate, WorkOrderTable, WorkOrderType))]
final class AVAEntAssetWorkOrderTableCreateFrm_Extension
{
 
    /// <summary>
    /// Fill the Year of issue if the work order type is pipleline
    /// </summary>
    public void modified()
    {
     
        FormDataObject                  entAssetWorkOrderTable_do = any2Object(this) as FormDataObject;
        FormDataSource                  entAssetWorkOrderTable_ds = entAssetWorkOrderTable_do.datasource();
        EntAssetWorkOrderTable          entAssetWorkOrderTable    = entAssetWorkOrderTable_ds.cursor();

        boolean                         enableDPMSButton          = (entAssetWorkOrderTable.workOrderType().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline);

        next modified();

        if(enableDPMSButton)
        {
            entAssetWorkOrderTable.AVAYearofIssue = int2Str(year(DateTimeUtil::getSystemDate(DateTimeUtil::getUserPreferredTimeZone())));
        }

    }

}

=======================================================================

3) COC for form data source only

[ExtensionOf(formDataSourceStr(EntAssetWorkOrderTableCreate, WorkOrderTable))]
1) final class AVAEntAssetWorkOrderTableCreateFrm_Extension
{
 
    /// <summary>
    /// Fill the Year of issue if the work order type is pipleline
    /// </summary>
    public void initValue()
    {
        EntAssetWorkOrderTable          entAssetWorkOrderTable    = this.cursor();
        boolean                         enableDPMSButton          = (entAssetWorkOrderTable.workOrderType().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline);

        next initValue();

        if (enableDPMSButton)
        {
            entAssetWorkOrderTable.AVAYearofIssue = int2Str(year(DateTimeUtil::getSystemDate(DateTimeUtil::getUserPreferredTimeZone())));
        }

    }

========================================================================

2) COC for the Active methods : -

Active method

/// <summary>
/// The <c>AVAEntAssetWorkOrderTableFrm_Extension</c> xxxxxxxx</c> form.
/// </summary>
[ExtensionOf(formDataSourceStr(EntAssetWorkOrderTable, WorkOrderTable))]
final class AVAEntAssetWorkOrderTableFrm_WorkOrderTableDS_Extension
{
 
    /// <summary>
    /// validating the Fields to be fill or blank </c> AVAKMPost & AVAYearofIssue </c> Validation perform for this two fields
    /// </summary>
    public int active()
    {
        int                             ret;
        FormRun                         formRun                   = this.formRun();
        FormControl                     dpmsUrlButton             = formRun.design().controlName(formControlStr(EntAssetWorkOrderTable, AVADpmsUrlLink));
        EntAssetWorkOrderTable          entAssetWorkOrderTable    = this.cursor();
        boolean                         enableDPMSButton          = (entAssetWorkOrderTable.workOrderType().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline);

        ret = next active();

        this.object(fieldNum(EntAssetWorkOrderTable, AVAKMPost)).mandatory(enableDPMSButton);
        this.object(fieldNum(EntAssetWorkOrderTable, AVAYearofIssue)).mandatory(enableDPMSButton);

        this.object(fieldnum(entAssetWorkOrderTable, AVAYearofIssue)).enabled(enableDPMSButton);
        this.object(fieldnum(entAssetWorkOrderTable, AVAKMPost)).enabled(enableDPMSButton);
        this.object(fieldnum(entAssetWorkOrderTable, AVAEnableDPMS)).enabled(enableDPMSButton);

        // Form control button
        dpmsUrlButton.enabled(enableDPMSButton);



        return ret;
    }

}

=======================================================================
COC for the Table method : -

/// <summary>
/// The <c>AVAEntAssetWorkOrderTableDbt_Extension</c> xxxxxxx</c> table.
/// </summary>
[ExtensionOf(tableStr(EntAssetWorkOrderTable))]
final class AVAEntAssetWorkOrderTableDbt_Extension
{
    // <summary>
    // To fill the Year of issue field with the current year on system
    // </summary>
    public void initValue()
    {
        next initValue();

        this.avaInitFromWorkOrderType();
     
    }

    // <summary>
    // To modified field call the "avaInitFromWorkOrderType" method to check the works order type
    // </summary>
    public void modifiedField(FieldId _fieldId)
    {
        next modifiedField(_fieldId);

        switch (_fieldId)
        {
            case fieldNum(EntAssetWorkOrderTable, WorkOrderType):
                this.avaInitFromWorkOrderType();
                break;
        }
    }

    // <summary>
    // Method will check that work order type what is the work order classification selected on work order typr form
    // </summary>
    public void avaInitFromWorkOrderType()
    {
        if(this.workordertype().AVAWorkOrderTypeClassification == AVAWorkOrderTypeClassification::Pipeline && this.workOrderType().AVAEnableDPMS == NoYes::Yes)
        {
            this.AVAYearofIssue = int2Str(year(DateTimeUtil::getSystemDate(DateTimeUtil::getUserPreferredTimeZone()))); // Current year
        }
        else
        {
            this.AVAYearofIssue = '';
        }
    }

}
====================================================================