create DMF import data project dynamically and map using XML

internal final class DMFImport
{
    /// <summary>
    /// Class entry point. The system will call this method when a designated menu 
    /// is selected or when execution starts and this class is set as the startup class.
    /// </summary>
    /// <param name = "_args">The specified arguments.</param>
    public static void main(Args _args)
    {
        str fileExtWithoutDot;
        str contentType;
        str fileId;
        guid fileGuid = newGuid();
        DMFDefinitionGroup  definitionGroup;
        DMFDefinitionGroupEntity    definitionGroupEntityTable;
        
        //Creates DMF project
        str _defintionGroupName = "Test8";
        ttsbegin;
        definitionGroup.initValue();
        definitionGroup.DefinitionGroupName = _defintionGroupName;
        definitionGroup.OperationType = DMFOperationType::Import;
        definitionGroup.insert();
        ttscommit;
        
        fileExtWithoutDot = DMFDataSource::getFormatFileExtension('XML-Element');
        contentType     = strFmt('application/%1', fileExtWithoutDot);

        DMFEntity DMFEntity;// = DMFEntity::find("Customer groups");
        select firstonly dmfEntity
            order by dmfEntity.EntityName asc
                where dmfEntity.targetEntity == "CUSTCUSTOMERGROUPENTITY";;

       // str _entityName = "CUSTCUSTOMERGROUPENTITY";
        str _entityName = DMFEntity.EntityName;
        
        str _fileName = "Test8";

        fileId = guid2str(fileGuid);
        str _fileBase64 = "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";
       
        //Creates a file from Base64
        System.Byte[] reportBytes = System.Convert::FromBase64String(_fileBase64);
        System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(reportBytes);

        FileUploadTemporaryStorageStrategy fileUploadStrategy = new FileUploadTemporaryStorageStrategy();
        FileUploadTemporaryStorageResult fileUploadResult = fileUploadStrategy.uploadFile(memoryStream, _fileName,contentType);

        //Adds the entity and file to the DMF Project
        ttsbegin;
        definitionGroupEntityTable.initValue();
        definitionGroupEntityTable.DefinitionGroup = _defintionGroupName;
        definitionGroupEntityTable.Entity = _entityName;
        definitionGroupEntityTable.Source = 'XML-Element';
        definitionGroupEntityTable.SampleFilePath = fileUploadResult.getFileId();
        definitionGroupEntityTable.EntityXMLName = DMFEntity.TargetEntity;

        definitionGroupEntityTable.RunInsertLogic = NoYes::Yes;
        definitionGroupEntityTable.RunValidateWrite = NoYes::Yes;
        DIS_DMFImport::GenerateAndValidateMapping(definitionGroupEntityTable);
        definitionGroupEntityTable.insert();
        ttscommit;

        DMFExecutionId  executionId = DMFUtil::setupNewExecution(_defintionGroupName);
        DMFDefinitionGroupExecution execution = DMFDefinitionGroupExecution::find(_defintionGroupName, definitionGroupEntityTable.Entity,executionId, true);

        //execution.DataProjectId = journalId;
        execution.FilePath = fileId;
        execution.update();

        //DMFQuickImportExport::doPGImport(_defintionGroupName, executionId);
    }

    /// <summary>
    /// Generates mapping for a definition group entity.
    /// </summary>
    /// <param name = "definitionGroupEntity">The definition group entity to generate mapping for.</param>
    public static void GenerateAndValidateMapping(DMFDefinitionGroupEntity definitionGroupEntity)
    {
        // Generate the mapping
        DMFXmlGeneration::generateMappingV2(definitionGroupEntity, '', true, true, false);

        // Validate generated mapping
        DMFQuickImportExport::validateXML(definitionGroupEntity.Source,
                definitionGroupEntity.SampleFilePath,
                definitionGroupEntity.Entity,
                definitionGroupEntity);
    }

}

Sysoperation framework with Aot query

public class UpdatePriceFormulaIdOnItemsService__Custom extends SysOperationServiceBase
{
    #OCCRetrycount
    public void processOperation(UpdatePriceFormulaIdOnItemsContract__Custom _contract)
    {
        Query               orderQuery;

        orderQuery      = _contract.getQuery();
        container       compCon = str2con(_contract.parmCompany(), SysAppUtilities__Custom::semiColon);
        QueryRun    queryRun = new QueryRun(orderQuery);
        while (queryRun.Next())
        {
            InventTable inventTable = queryRun.get(tableNum(InventTable));
            try
            {
                PriceFormulaId__Custom  priceFormulaIdMaster = this.getPriceFormulaId(inventTable);

                //DSSE
                if (inventTable &&
                    inventTable.PriceFormulaIdMaster__Custom != priceFormulaIdMaster)
                {
                    ttsbegin;
                    inventTable.selectForUpdate(true);
                    inventTable.PriceFormulaIdMaster__Custom = priceFormulaIdMaster;
                    inventTable.PriceFormulaId__Custom = priceFormulaIdMaster;
                    inventTable.doUpdate();
                    ttscommit;
                }

                for (int i=1; i<=conLen(compCon); i++)
                {
                    DataAreaId  company = conPeek(compCon, i);
                    changecompany(company)
                    {
                        InventTable inventTableSales = InventTable::find(inventTable.ItemId);
                        PriceFormulaId__Custom  priceFormulaId = this.getPriceFormulaId(inventTableSales);

                        if (inventTableSales &&
                            inventTableSales.PriceFormulaId__Custom != priceFormulaId)
                        {
                            ttsbegin;
                            inventTableSales.selectForUpdate(true);
                            inventTableSales.PriceFormulaIdMaster__Custom = priceFormulaIdMaster;
                            inventTableSales.PriceFormulaId__Custom = priceFormulaId;
                            inventTableSales.doUpdate();
                            ttscommit;
                        }
                    }
                }

                info(strfmt("@_CustomtITServices:SucessUpdateItem", inventTable.ItemId));
            }
            catch (Exception::Deadlock)
            {
                retry;
            }
            catch (Exception::UpdateConflict)
            {
                if (appl.ttsLevel() == 0)
                {
                    if (xSession::currentRetryCount() >= #RetryNum)
                    {
                        warning(strFmt("@_CustomtITServices:FaliedUpdateItem", inventTable.ItemId));
                        continue;
                    }
                    else
                    {
                        retry;
                    }
                }
                else
                {
                    warning(strFmt("@_CustomtITServices:FaliedUpdateItem", inventTable.ItemId));
                    continue;
                }
            }
            catch (Exception::Error)
            {
                warning(strFmt("@_CustomtITServices:FaliedUpdateItem", inventTable.ItemId));
                continue;
            }
        }
    }

    public PriceFormulaId__Custom getPriceFormulaId(InventTable _inventTable)
    {
        DimensionValue      brandDim;
        EcoResCategoryId    ecoResCategoryId;
        container           catCon  = conNull();

        if (_inventTable)
        {
            brandDim            = _CustomtITServicesUtility__Custom::getDimension_CustomplayValue(_inventTable.DefaultDimension, SysAppUtilities__Custom::dimensionAttributeNameBrand);
            catCon              = _CustomtITServicesUtility__Custom::getProdCategories(_inventTable.ItemId);
        }

        ItemPriceFormula__Custom    itemPriceFormula;
        
        if (_inventTable.ItemId)
        {
            itemPriceFormula    = ItemPriceFormula__Custom::findByItem(_inventTable.ItemId);
        }
           
        if (!itemPriceFormula && catCon != conNull() && brandDim)
        {
            for (int i=1; i<=conLen(catCon); i++)
            {
                ecoResCategoryId    = EcoResCategory::find(conPeek(catCon, i)).RecId;
                itemPriceFormula    = ItemPriceFormula__Custom::findByCategoryBrand(ecoResCategoryId, brandDim);
                if (itemPriceFormula)
                {
                    break;
                }
            }
        }

        if (!itemPriceFormula && brandDim)
        {
            itemPriceFormula    = ItemPriceFormula__Custom::findByBrand(brandDim);
        }
        
        if (!itemPriceFormula && catCon != conNull())
        {
            for (int i=1; i<=conLen(catCon); i++)
            {
                ecoResCategoryId    = conPeek(catCon, i);
                itemPriceFormula    = ItemPriceFormula__Custom::findByCategory(ecoResCategoryId);
                if (itemPriceFormula)
                {
                    break;
                }
            }
        }

        return itemPriceFormula.PriceFormulaId;
    }

}
=====================
public class UpdatePriceFormulaIdOnItemsController__Custom extends SysOperationServiceController
{
    // <summary>
    /// Creates a new instance of <c>UpdateEndOfLifeOnItemsController__Custom</c> class.
    /// </summary>
    /// <param name = "_args">A controller arguments.</param>
    /// <returns>A instance of <c>SysOperationController</c> class.</returns>
    public static UpdatePriceFormulaIdOnItemsController__Custom construct(Args _args)
    {
        UpdatePriceFormulaIdOnItemsController__Custom controller = new UpdatePriceFormulaIdOnItemsController__Custom();
        controller.parmArgs(_args);

        return controller;
    }

    /// <summary>
    /// Instantiate controller.
    /// </summary>
    protected void new()
    {
        super(classStr(UpdatePriceFormulaIdOnItemsService__Custom), methodStr(UpdatePriceFormulaIdOnItemsService__Custom, processOperation));

        this.parmDialogCaption("@_CustomtITServices:UpdatePriceFormulaIdItem");
    }

    /// <summary>
    /// Runs the class with the specified arguments.
    /// </summary>
    /// <param name = "_args">The specified arguments.</param>
    public static void main(Args _args)
    {
        UpdatePriceFormulaIdOnItemsController__Custom controller = UpdatePriceFormulaIdOnItemsController__Custom::newFromArgs(_args);
        controller.parmExecutionMode(SysOperationExecutionMode::Synchronous);
        controller.startOperation();
    }

    /// <summary>
    /// Instantiate and initialize controller class.
    /// </summary>
    /// <param name = "_args">The specified arguments.</param>
    /// <returns>
    /// returns controller class.
    /// </returns>
    public static UpdatePriceFormulaIdOnItemsController__Custom newFromArgs(Args _args)
    {
        UpdatePriceFormulaIdOnItemsController__Custom controller = UpdatePriceFormulaIdOnItemsController__Custom::construct(_args);
        return controller;
    }

}
==================
[DataContractAttribute, SysOperationContractProcessingAttribute(ClassStr(UpdatePriceFormulaIdOnItemsUIbuilder__Custom))]
public class UpdatePriceFormulaIdOnItemsContract__Custom
{
    str     packedQuery;
    Str                     company;
    /// <summary>
    ///    Initialize query
    /// </summary>
    public void initQuery()
    {
        Query   newQuery;
        newQuery = new Query(queryStr(InventTable));
        this.setQuery(newQuery);
    }

    /// <summary>
    ///     Get/Set the packed query
    /// </summary>
    /// <param name = "_packedQuery">query</param>
    /// <returns>string</returns>
    [
    DataMemberAttribute,
    AifQueryTypeAttribute('_packedQuery', queryStr(InventTable))
    ]
    public str parmPackedQuery(str _packedQuery = packedQuery)
    {
        packedQuery = _packedQuery;

        return packedQuery;
    }

    /// <summary>
    ///     Get the query
    /// </summary>
    /// <returns>Query</returns>
    public Query getQuery()
    {
        return
        new Query(SysOperationHelper::base64Decode(packedQuery));
    }

    /// <summary>
    ///     Set the query
    /// </summary>
    /// <param name = "_query">query</param>
    public void setQuery(Query _query)
    {
        packedQuery = SysOperationHelper::base64Encode(_query.pack());
    }

    // <summary>
    /// Gets or sets the value of the datacontract parameter company.
    /// </summary>
    /// <param name="_company">
    /// The new value of the datacontract parameter company; optional.
    /// </param>
    /// <returns>
    ///  The current value of datacontract parameter company
    /// </returns>
    [
        DataMemberAttribute,
        SysOperationLabelAttribute(literalStr("@_CustomtITServices:Company")),
        SysOperation_CustomplayOrderAttribute("1")
    ]
    public Str parmCompany(Str _company = company)
    {
        company = _company;
        return company;
    }

}

Iterate through extended child classes dynamically using X++

/// <summary>
/// Base class for search
/// </summary>
class searchBaseClass
{
    const private Integer priorityMax = 99;

    /// <summary>
    /// Method that searches for values
    /// </summary>
   
    protected void search(//your parmeters)
    {
    }

    /// <summary>
    /// Method that indicates the class priority and therefor the number in which it is executed
    /// </summary>
    /// <returns>
    /// An integer indicating the class priority and therefor the number in which it is executed
    /// </returns>
    protected Priority priority()
    {
        return searchBaseClass::PriorityMax;
    }

    /// <summary>
    /// Method that creates a map of search classes to be executed in a priorized way
    /// </summary>
    /// <returns>
    /// A map containing class objects to execute
    /// </returns>
    private Map createExecutionMap()
    {
        DictClass                       dictClass;
        searchBaseClass    		searchBase;
        ListEnumerator                  listEnumerator;
        List                            listClass = new DictClass(classnum(searchBaseClass)).extendedBy();
        Map                             mapExecutionClasses = new Map(Types::Integer, Types::Class);

        listEnumerator = listClass.getEnumerator();
        while (listEnumerator.moveNext())
        {
            dictClass = new DictClass(listEnumerator.current());
            if (dictClass)
            {
                searchBase = dictClass.makeObject();
                if (searchBase)
                {
                    // Add class object to execution list unless the priority is already added
                    if (!mapExecutionClasses.exists(searchBase.priority()))
                    {
                        mapExecutionClasses.insert(searchBase.priority(), searchBase);
                    }
                    else
                    {
                        warning(strFmt("SearchSkipped", dictClass.name(), searchBase.priority()));
                    }
                }
            }
        }

        return mapExecutionClasses;
    }

    /// <summary>
    /// Method that run through all classes that searches for data
    /// </summary>
    public void run()
    {
        searchBaseClass  		  	  searchBase;
        Map                           mapExecutionClasses;

        mapExecutionClasses = this.createExecutionMap();

        for (int i = 1; i <= searchBase::priorityMax; i++)
        {
            if (mapExecutionClasses.exists(i))
            {
                searchBase = mapExecutionClasses.lookup(i);
                if (searchBase)
                {
                    searchBase.search();
                }
            }
        }
    }

}


/// <summary>
/// child Class searching 
/// </summary>
class searchChildClass extends searchBaseClass
{
    /// <summary>
    /// Method that indicates the class priority and therefor the number in which it is executed
    /// </summary>
    /// <returns>
    /// An integer indicating the class priority and therefor the number in which it is executed
    /// </returns>
    protected Priority priority()
    {
        return 1;
    }

    /// <summary>
    /// Method searching
    /// </summary>
  
    protected void search(//your parmeters)
    {
        //your logic
    }

Find smallest date from a set of dates using X++

ListEnumerator  listEnumerator;
list listDates = new  list(Types::Date);

listDates.addEnd(Date1);
listDates.addEnd(Date2);
listDates.addEnd(Date3);
listDates.addEnd(Date4);

TransDate lowestDate = dateMax();

if (listDates.elements() > 0)
{
	listEnumerator = listDates.getEnumerator();
	while (listEnumerator.moveNext())
	{
		if(listEnumerator.current() <= lowestDate && listEnumerator.current() != dateNull())
		{
			lowestDate = listEnumerator.current();
		}
	}
}

if(lowestDate != dateNull() && lowestDate != dateMax())
{
	info(lowestDate);
}

Validate multiple emails using X++ , Regex

    ///
    /// </summary>
    /// <param name = "_fieldIdToCheck"></param>
    /// <returns></returns>
    public boolean validateField(FieldId _fieldIdToCheck)
    {
        boolean ret;
    
        ret = super(_fieldIdToCheck);

        switch (_fieldIdToCheck)
        {
            case fieldNum(Reporting, Email) :
              
                container email = str2con(this.Email, SysAppUtilities::semiColon);

                for (int i = 1; i <= conLen(email); i++)
                {
                    if (!Reporting::isValidEmail(conPeek(email, i)))
                    {
                        ret = checkFailed(strFmt("%1: %2", "@SYS334523", conPeek(email, i)));
                    }
                }

                break;
        }
    
        return ret;
    }

    /// <summary>
    ///    This method accepts a email and validates this using REGEX
    /// </summary>
    /// <returns>
    ///    true or false based on Regex match
    /// </returns>
    static server boolean isValidEmail(Email _email)
    {
        System.Text.RegularExpressions.Match match;
        System.Boolean netBool;
        boolean xppBool;
        str matchEmailPattern =
       @"^(([\w-]+\.)+[\w-]+|([a-zA-Z]{1}|[\w-]{2,}))@"
     + @"((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?
       [0-9]{1,2}|25[0-5]|2[0-4][0-9])\."
     + @"([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?
       [0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|"
     + @"([\w-]+\.)+[a-zA-Z]{2,4})$";
 
        new InteropPermission(InteropKind::ClrInterop).assert();
        match = System.Text.RegularExpressions.Regex::Match(_email, matchEmailPattern);
        netBool = match.get_Success();
        xppBool = netBool;
        CodeAccessPermission::revertAssert();

        return xppBool;
    }

Calculate FromDate/ToDate based on Daily,Weelkly,Monthly in X++

boolean canRun = false;
TransDate fromDate, toDate, prevDate;
TransDate currentDate = DateTimeUtil::getSystemDate(DateTimeUtil::getUserPreferredTimeZone());
switch (Reporting.Schedule)
{
	case ReportingSchedule::Daily :
		fromDate = currentDate - 1;
		toDate = currentDate - 1;
		canRun = true;
		break;
	case ReportingSchedule::Weekly :
		PreferredLocale preferredLocale = (new xSession()).PreferredLocale();
		prevDate = HcmDateTimeUtil::calculateDateWithOffset(PeriodUnit::Day,7,false, currentDate);
		fromDate = DateTimeUtil::getStartOfWeekDate(preferredLocale, prevDate);
		toDate   = DateTimeUtil::getEndOfWeekDate(preferredLocale, prevDate);
		canRun   = dayOfWk(currentDate) == 1; //1 for monday
		break;
	case ReportingSchedule::Monthly :
		prevDate = prevMth(currentDate);
		fromDate = DateStartMth(prevDate);
		toDate   = endmth(prevDate);
		canRun   = dayOfMth(currentDate) == 1; //1 for first day of the month
		break;
}

Computed column in View/DataEntity

private static server str compPurchQtyInvoiced()
{
	//return SysComputedColumn::sum(SysComputedColumn::returnField(
	//        tableStr(InboundOrderLinesOverview),
	//        identifierStr(InventTransPurchLine),
	//    fieldStr(InventTrans, Qty)));

	SysDictTable InventTrans = new SysDictTable(tableNum(InventTrans));
	SysDictTable InventTransOriginPurchLineLoc = new SysDictTable(tableNum(InventTransOriginPurchLine));
	str          val;

	str     inventtransid = SysComputedColumn::returnField(dataentityviewstr(InboundOrderLinesOverview), identifierstr(PurchLine), fieldstr(PurchLine, InventTransId));

	//select SUM(QTY) from inventtrans
	//    join InventTransOriginPurchLine on InventTransOriginPurchLine.INVENTTRANSORIGIN = inventtrans.INVENTTRANSORIGIN
	//    where InventTransOriginPurchLine.PURCHLINEINVENTTRANSID = 'L00834739'
	//    AND inventtrans.STATUSRECEIPT in (1,2)


	val = strFmt("select SUM(%1) from %2 join %3 on %3.%4 = %2.%5 where %3.%6 = %7 AND %2.%8 = %9",
		InventTrans.fieldName(fieldNum(InventTrans, Qty), DbBackend::Sql),
		InventTrans.name(DbBackend::Sql),
		InventTransOriginPurchLineLoc.name(DbBackend::Sql),
		InventTransOriginPurchLineLoc.fieldName(fieldNum(InventTransOriginPurchLine, INVENTTRANSORIGIN), DbBackend::Sql),
		InventTrans.fieldName(fieldNum(InventTrans, INVENTTRANSORIGIN), DbBackend::Sql),
		InventTransOriginPurchLineLoc.fieldName(fieldNum(InventTransOriginPurchLine, PURCHLINEINVENTTRANSID), DbBackend::Sql),
		inventtransid,
		InventTrans.fieldName(fieldNum(InventTrans, StatusReceipt), DbBackend::Sql),
		SysComputedColumn::returnLiteral(1));

	return val;
}