** "Referential integrity update trigger for" order_line_items LOCAL llRetVal llRetVal = .t. PRIVATE pcParentDBF,pnParentRec,pcChildDBF,pnChildRec,pcParentID,pcChildID PRIVATE pcParentExpr,pcChildExpr STORE "" TO pcParentDBF,pcChildDBF,pcParentID,pcChildID,pcParentExpr,pcChildExpr STORE 0 TO pnParentRec,pnChildRec IF _triggerlevel=1 BEGIN TRANSACTION PRIVATE pcRIcursors,pcRIwkareas,pcRIolderror,pnerror,; pcOldDele,pcOldExact,pcOldTalk,pcOldCompat,PcOldDBC pcOldTalk=SET("TALK") SET TALK OFF pcOldDele=SET("DELETED") pcOldExact=SET("EXACT") pcOldCompat=SET("COMPATIBLE") SET COMPATIBLE OFF SET DELETED ON SET EXACT OFF pcRIcursors="" pcRIwkareas="" pcRIolderror=ON("error") pnerror=0 ON ERROR pnerror=rierror(ERROR(),message(),message(1),program()) IF TYPE('gaErrors(1)')<>"U" release gaErrors ENDIF PUBLIC gaErrors(1,12) pcOldDBC=DBC() SET DATA TO ("TASTRADE") ENDIF first trigger LOCAL lcParentID && parent's value to be sought in child LOCAL lcOldParentID && previous parent id value LOCAL lcChildWkArea && child work area handle returned by riopen LOCAL lcChildID && child's value to be sought in parent LOCAL lcOldChildID && old child id value LOCAL lcParentWkArea && parentwork area handle returned by riopen LOCAL lcStartArea lcStartArea=select() llRetVal=.t. lcChildWkArea=select() IF _triggerlevel=1 or type("pccascadeparent")#"C" or (NOT pccascadeparent=="PRODUCTS") SELECT (lcChildWkArea) lcChildID=PRODUCT_ID lcOldChildID=oldval("PRODUCT_ID") pcChildDBF=dbf(lcChildWkArea) pnChildRec=recno(lcChildWkArea) pcChildID=lcOldChildID pcChildExpr="PRODUCT_ID" IF lcChildID<>lcOldChildID lcParentWkArea=riopen("products","product_id") IF lcParentWkArea<=0 IF _triggerlevel=1 DO riend WITH .F. ENDIF at the end of the highest trigger level SELECT (lcStartArea) RETURN .F. ENDIF not able to open the child work area pcParentDBF=dbf(lcParentWkArea) llRetVal=SEEK(lcChildID,lcParentWkArea) pnParentRec=recno(lcParentWkArea) =rireuse("products",lcParentWkArea) IF NOT llRetVal DO rierror with -1,"Insert restrict rule violated.","","" IF _triggerlevel=1 DO riend WITH llRetVal ENDIF at the end of the highest trigger level SELECT (lcStartArea) RETURN llRetVal ENDIF no parent ENDIF this value was changed ENDIF not part of a cascade from "products" IF _triggerlevel=1 or type("pccascadeparent")#"C" or (NOT pccascadeparent=="ORDERS") SELECT (lcChildWkArea) lcChildID=ORDER_ID lcOldChildID=oldval("ORDER_ID") pcChildDBF=dbf(lcChildWkArea) pnChildRec=recno(lcChildWkArea) pcChildID=lcOldChildID pcChildExpr="ORDER_ID" IF lcChildID<>lcOldChildID lcParentWkArea=riopen("orders","order_id") IF lcParentWkArea<=0 IF _triggerlevel=1 DO riend WITH .F. ENDIF at the end of the highest trigger level SELECT (lcStartArea) RETURN .F. ENDIF not able to open the child work area pcParentDBF=dbf(lcParentWkArea) llRetVal=SEEK(lcChildID,lcParentWkArea) pnParentRec=recno(lcParentWkArea) =rireuse("orders",lcParentWkArea) IF NOT llRetVal DO rierror with -1,"Insert restrict rule violated.","","" IF _triggerlevel=1 DO riend WITH llRetVal ENDIF at the end of the highest trigger level SELECT (lcStartArea) RETURN llRetVal ENDIF no parent ENDIF this value was changed ENDIF not part of a cascade from "orders" lcParentWkArea=lcChildWkArea IF _triggerlevel=1 do riend with llRetVal ENDIF at the end of the highest trigger level SELECT (lcStartArea) RETURN llRetVal ** "End of Referential integrity Update trigger for" order_line_items ******************************************************************************** ******************************************************************************** ** "Referential integrity insert trigger for" order_line_items