Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Follow-up to 83c9ebbd66.
Consider the case where calls to the reset methods on the same object
are nested as in the following sequence:
1. beginResetModel()
2. beginResetModel()
3. endResetModel()
4. endResetModel()
In such cases, only the outermost calls, i.e., 1) and 4), should emit
signals.
After 83c9ebbd66, 1) and 3) emitted the
signals, which is wrong. This is corrected by keeping track of the
nesting level.
Such sequences can come about when a base class calls the begin/end
methods between the calls made by the subclass.
QSqlTableModel::select() is an example of this.
Test included.
Change-Id: Ia62b45cb1abaab00a32bb8357de4a958bcff83e5
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Previously the method attempted to reset only as a last resort.
Now reset() is deprecated and resetting must happen between emitting
modelAboutToBeReset() and modelReset(). Since this suffices in all
cases to notify views that they must reinterrogate the model, it is no
longer necessary to signal explicitly row removals and insertions
within the scope of the reset.
Additionally, fetchMore() is now called within the scope of the reset
so insert signals do not have to be emitted here either.
This improved handling of resetting in QSqlQueryModel also allows the
cache in QSqlTableModel to be cleared directly at select().
This change may actually allow views to operate more efficiently since
they no longer have to react to separate row removal and insert
signals. Views can avoid pointless deallocation and reallocation
by considering row count only after the reset is finished. The cost is
that the columns and horizontal headers must be considered in the view
at each setQuery() call. In any case, it is not clear that trying to
be smart about this in the model justifies additional complexity.
Tests had to be adjusted where they expected explicit row removal
and insert signals.
Change-Id: I4f7eac1419824361d7d9bdcc6a87092b33e80d7a
Task-Id: QTBUG-25419
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Honglei Zhang <honglei.zhang@nokia.com>
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.
Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
Iikka Eklund
Mark Brand
Jason McDonald
Jyri Tahtela
Qt by Nokia