method ApiReplicate

Description

This is a generic procedure for updating database objects. This procedure is capable of handling multiple objects in one run, but cannot save draft instances if the input data is incorrect, like procedure ApiMaintainByDataset can.

PreCondition

This method cannot be run on a business class if method DataLoadByInput has not been implemented.

Parameters

izInputData	input	dataset-handle	class dataset
icActivityCode	input	character	Activity code (CREATE or MODIFY or DELETE) determines the kind of update. Value of tc_Status in the input data is ignored. When empty, CREATE or UPDATE is assumed, depending on whether the input data already exists in the application database.
oiReturnStatus	output	integer	Return status of the method.

Internal usage

unused

program code (program3/database.p)

assign vcActivityCode = icActivityCode.

/* ================================================================= */
/* Clear the I and O buffers in the object dataset by calling ClearData */
/* ================================================================= */
<M-7 run ClearData  (output viFcReturnSuper (oiReturnStatus)) in database>
if viFcReturnSuper <> 0
then oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.

/* ================================================================= */
/* Transfer input data to the class temp tables t_s***               */
/* ================================================================= */
run gipr_ClearSTables in {&TARGETPROCEDURE} no-error.

<M-1 run DataDescription
   (input  '' (icRowids), 
    input  '' (icPkey), 
    input  '' (icObjectIds), 
    input  yes (ilAllTables), 
    output viFcReturnSuper (oiReturnStatus)) in database>
if viFcReturnSuper <> 0
then oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.

for each tFcDynRel on error undo, throw:

    vhLocalBuffer = tFcDynRel.thFcSBuffer.
    vhInputBuffer = ?.
    vhInputBuffer = izInputData:get-buffer-handle("t":U + tFcDynRel.tcFcTo) no-error.
    if vhInputBuffer = ?
    then do:
        assign oiReturnStatus = -3.
        <M-6 run SetMessage (input  'Table t$1 not found in input data.':U (icMessage), 
                     input  tFcDynRel.tcFcTo (icArguments), 
                     input  '' (icFieldName), 
                     input  '' (icFieldValue), 
                     input  'S':U (icType), 
                     input  1 (iiSeverity), 
                     input  '' (icRowid), 
                     input  'BLF-306':U (icFcMsgNumber), 
                     input  '' (icFcExplanation), 
                     input  '' (icFcIdentification), 
                     input  '' (icFcContext), 
                     output viFcReturnSuper (oiReturnStatus)) in database>
        return.
    end.

    create query vhInputQuery in widget-pool "non-persistent".
    vhInputQuery:forward-only = yes.
    vhInputQuery:set-buffers(vhInputBuffer).
    vhInputQuery:query-prepare ("for each t":U + tFcDynRel.tcFcTo).
    vhInputQuery:query-open().
    vhInputQuery:get-first().
    
    do while not vhInputQuery:query-off-end:
        vhLocalBuffer:buffer-create().
        vhLocalBuffer:buffer-copy(vhInputBuffer).
        vhLocalBuffer:buffer-release().
        vhInputQuery:get-next().
    end.
    
    vhInputQuery:query-close().
    delete object vhInputQuery.
end.

/* ================================================================= */
/* Update data                                                       */
/* ================================================================= */
<M-5 run MaintainByDataset
   (input  {&DAEMONACTION-SAVE} (icAction), 
    output vpar1 (opPrimaryKey), 
    output vpar2 (opRowid), 
    output viFcCount4 (oiDraftInstance), 
    output viFcReturnSuper (oiReturnStatus)) in database>
if viFcReturnSuper <> 0
then oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.