database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-07 02:42:48 +03:00
Code Activity

Fixes for new triggers scheme.

Browse Source 
FossilOrigin-Name: 9eb91efda5241609ff18ff15ef5eaa0e86788eab
This commit is contained in:
dan
2009-08-30 11:42:51 +00:00
parent 165921a742
commit 76d462ee78
20 changed files with 217 additions and 183 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
src/trigger.c
View File

@@ -698,6 +698,10 @@ static int codeTriggerProgram(
*/
pParse->orconf = (orconfin==OE_Default)?pStep->orconf:orconfin;
if( pStep->op!=TK_SELECT ){
sqlite3VdbeAddOp1(v, OP_ResetCount, 0);
}
switch( pStep->op ){
case TK_UPDATE: {
sqlite3Update(pParse,
@@ -734,6 +738,9 @@ static int codeTriggerProgram(
break;
}
}
if( pStep->op!=TK_SELECT ){
sqlite3VdbeAddOp1(v, OP_ResetCount, 1);
}
pStep = pStep->pNext;
}
/* sqlite3VdbeAddOp2(v, OP_ContextPop, 0, 0); */
@@ -818,13 +825,19 @@ static CodedTrigger *codeRowTrigger(
v = sqlite3GetVdbe(pSubParse);
if( v ){
VdbeComment((v, "Trigger: %s (%s %s%s%s ON %s) (%s)", pTrigger->zName,
VdbeComment((v, "Start: %s.%s (%s %s%s%s ON %s)",
pTrigger->zName, onErrorText(orconf),
(pTrigger->tr_tm==TRIGGER_BEFORE ? "BEFORE" : "AFTER"),
(op==TK_UPDATE ? "UPDATE" : ""),
(op==TK_INSERT ? "INSERT" : ""),
(op==TK_DELETE ? "DELETE" : ""),
pTab->zName, onErrorText(orconf)
pTab->zName
));
#ifndef SQLITE_OMIT_TRACE
sqlite3VdbeChangeP4(v, -1,
sqlite3MPrintf(db, "-- TRIGGER %s", pTrigger->zName), P4_DYNAMIC
);
#endif
if( pTrigger->pWhen ){
/* Code the WHEN clause. If it evaluates to false (or NULL) the
@@ -838,11 +851,13 @@ static CodedTrigger *codeRowTrigger(
}
/* Code the trigger program into the sub-vdbe. */
codeTriggerProgram(pSubParse, pTrigger->step_list, OE_Default);
codeTriggerProgram(pSubParse, pTrigger->step_list, orconf);
if( iEndTrigger ){
sqlite3VdbeResolveLabel(v, iEndTrigger);
}
sqlite3VdbeAddOp0(v, OP_Halt);
VdbeComment((v, "End: %s.%s", pTrigger->zName, onErrorText(orconf)));
transferParseError(pParse, pSubParse);
pProgram->aOp = sqlite3VdbeTakeOpArray(v, &pProgram->nOp, &pParse->nArg);
pProgram->nMem = pSubParse->nMem;
@@ -961,10 +976,10 @@ void sqlite3CodeRowTrigger(
/* Code the OP_Program opcode in the parent VDBE. P4 of the OP_Program
** is a pointer to the sub-vdbe containing the trigger program. */
if( pC ){
sqlite3VdbeAddOp3(v, OP_Program, oldIdx, newIdx, ++pParse->nMem);
sqlite3VdbeAddOp3(v, OP_Program, oldIdx, ignoreJump, ++pParse->nMem);
pC->pProgram->nRef++;
sqlite3VdbeChangeP4(v, -1, (const char *)pC->pProgram, P4_SUBPROGRAM);
VdbeComment((v, "Call trigger: %s (%s)", p->zName,onErrorText(orconf)));
VdbeComment((v, "Call: %s.%s", p->zName, onErrorText(orconf)));
}
}
}