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SqliteTableModel: Return from setData() if value hasn't changed

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Don't do any changes to the database if the value hasn't actually
changed. This avoids settings the dirty flag when there is no need to.
This commit is contained in:
Martin Kleusberg
2013-05-07 20:51:07 +02:00
parent ea31c8023b
commit 74bdfee384
1 changed files with 4 additions and 0 deletions
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4
src/sqlitetablemodel.cpp
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@@ -156,6 +156,10 @@ bool SqliteTableModel::setData(const QModelIndex& index, const QVariant& value,
{
if(index.isValid() && role == Qt::EditRole)
{
// Don't do anything if the data hasn't changed
if(m_data.at(index.row()).at(index.column()) == value)
return true;
if(m_db->updateRecord(m_sTable, m_headers.at(index.column()), m_data[index.row()].at(0).toInt(), value.toByteArray()))
{
// Only update the cache if this row has already been read, if not there's no need to do any changes to the cache