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QmlDesigner: Avoid writes into the project storage

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If the values are the same we should avoid writes to the database
because they are not so cheap. Also recognize that "IS NOT" is used
instead of "<>" because we want to test for null values too.

Change-Id: I6699c6c40ad42f5d07910905b10cc7d423373320
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This commit is contained in:
Marco Bubke
2021-07-06 11:39:24 +02:00
parent 3527ea8942
commit a8d6bb06df
1 changed files with 11 additions and 3 deletions
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14
src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h
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@@ -1072,6 +1072,9 @@ private:
static_cast<int>(type.accessSemantics),
&type.sourceId);
if (!type.typeId)
type.typeId = selectTypeIdByImportIdAndNameStatement.template value<TypeId>(&type.importId,
type.typeName);
upsertNativeType(type.importId, type.typeName, type.typeId);
for (const auto &exportedType : type.exportedTypes)
@@ -1516,10 +1519,15 @@ public:
"INSERT INTO types(importId, name, accessSemantics, sourceId) VALUES(?1, ?2, "
"?3, nullif(?4, -1)) ON "
"CONFLICT DO UPDATE SET prototypeId=excluded.prototypeId, "
"accessSemantics=excluded.accessSemantics, sourceId=excluded.sourceId RETURNING typeId",
"accessSemantics=excluded.accessSemantics, sourceId=excluded.sourceId WHERE "
"prototypeId iS NOT excluded.prototypeId OR accessSemantics IS NOT "
"excluded.accessSemantics OR "
"sourceId IS NOT excluded.sourceId RETURNING typeId",
database};
WriteStatement updatePrototypeStatement{
"UPDATE types SET prototypeId=?2, prototypeNameId=?3 WHERE typeId=?1", database};
"UPDATE types SET prototypeId=?2, prototypeNameId=?3 WHERE typeId=?1 AND (prototypeId IS "
"NOT ?2 OR prototypeNameId IS NOT ?3)",
database};
mutable ReadStatement<1> selectTypeIdByExportedNameStatement{
"SELECT typeId FROM typeNames WHERE name=?1 AND kind=1", database};
mutable ReadStatement<1> selectPrototypeIdStatement{
@@ -1553,7 +1561,7 @@ public:
database};
WriteStatement upsertTypeNamesStatement{
"INSERT INTO typeNames(importId, name, typeId, kind) VALUES(?1, ?2, ?3, ?4) ON CONFLICT DO "
"UPDATE SET typeId=excluded.typeId",
"UPDATE SET typeId=excluded.typeId WHERE typeId IS NOT excluded.typeId",
database};
mutable ReadStatement<1> selectPrototypeIdsStatement{
"WITH RECURSIVE "