Description
General procedure to read data from the database into the class dataset.
The data is stored into the temp-tables referred by a handle in tFcDynRel.
Parameters
| tDynRel | input | temp-table | Description of the data to read. |
| ihClass | input | handle | Handle to the class that is using the persistence layer. In most of the cases, this handle will be available in the preprocessor {&TARGETPROCEDURE}. |
| oiReturnStatus | output | integer | |
Internal usage
unused
program code (program1/progress.p)
vlEof = ?.
vlEmpty = yes.
for each tDynRel on error undo, throw:
assign vhTable = tDynRel.thFcBuffer:table-handle.
if vhTable:has-records
then vlEmpty = no.
assign vhTable = tDynRel.thFcIBuffer:table-handle.
if vhTable:has-records
then vlEmpty = no.
end.
for each tDynRel where
tDynRel.tcFcFrom = "" on error undo, throw:
<M-1 run ReadDataRecursive (input tDynRel.tcFcTo (icTableName),
input tDynRel.thFcBuffer (ihDestinationBuffer),
input tDynRel.thFcIBuffer (ihIDestinationBuffer),
input tDynRel.tcFcRel (icPrepare),
input '' (icParentRowid),
input true (ilTopLevel),
input ihClass (ihClass),
input vlEmpty (ilStartEmpty),
output oiReturnStatus (oiReturnStatus)) in Progress>
if oiReturnStatus = -4
then assign vlEof = (if vlEof = no then no else yes)
oiReturnStatus = 0.
else assign vlEof = no.
empty temp-table tRowidList.
if oiReturnStatus <> 0 then return.
end.
if vlEof
then assign oiReturnStatus = -4.
else if can-find (first tDynRel where tDynRel.tcParent <> "")
then do:
<M-2 run UpdateParent (output oiReturnStatus (oiReturnStatus)) in Progress>
end.