Review Request 110163: Use KexiDB's TableViewData in the biblio table model

[Jarosław Staniek]

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http://git.reviewboard.kde.org/r/110163/
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Review request for Calligra, Oleg Kukharchuk, Adam Pigg, Smit Patel, Dimitrios Tanis, Tomasz Olszak, and Radosław Wicik.


Description
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Use KexiDB's TableViewData in the biblio table model. As a result the model is properly editable. 

Moreover, unlike the original solution, thanks to buffering in TableViewData all operations are no longer expensive:
- row count is O(1),
- data altering is O(1),
- data retrieving (individual cells) is O(1)

Filtering works too. The code is also relatively simple.

This patch depends on https://git.reviewboard.kde.org/r/110162 (KexiTableViewColumn and KexiTableViewData from calligradb).


Diffs
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  libs/kotext/BibliographyTableModel.h PRE-CREATION 
  libs/kotext/BibliographyTableModel.cpp PRE-CREATION 

Diff: http://git.reviewboard.kde.org/r/110163/diff/


Testing
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Features of the Bibliography Database window work properly.

Not sure about memory leaks, e.g. two cases of Cursor lifetime: m_conn->deleteCursor()


Thanks,

Jarosław Staniek

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