2010/12/25 Marc Delisle marc@infomarc.info:
Le 2010-12-25 06:35, Dieter Adriaenssens a écrit :
Hi all,
I'd like your opinion about exporting view of view in xml format.
Aamir Khan prepared a patch [0] that creates an XML export in the way this is handled in SQL export, ie first all tables and views are exported. All views are exported as standin tables with the same structure. Then all views are recreated, first dropping the standin tables, and creating the real views. The reason for this is to make sure that when creating a view that uses another view, it at least exists, thus avoiding an error upon importing it again. Downside of this is that the xml export of the structure schema gets a bit confusing with a pma:table, pma:drop and pma:view tag for every view, as the xml export is intended to be used by custom scripting.
Another idea is just to export the schema structure with one tag for a view (without the extra table and drop parts), and make some changes to the xml import code, to handle the correct creation of the views.
Has a patch been contributed to implement this second idea? If not, how complex would be "some changes"?
There is no patch yet. Currently the import/xml.php code executes the SQL statements that are defined in the structure schema in the exported XML file (see attachment for an example, which was generated with Aamir's patch). 'Some changes' would mean that the import would have to detect a view and generate the stand-in table for it, and after creating all tables/stand-in views, executing the SQL statements to create the real views (and add a a DROP statement of that stand-in table)
It doesn't seem to be too complex.
Any ideas?
[0] http://sourceforge.net/tracker/?func=detail&aid=3141565&group_id=230...
-- Marc Delisle http://infomarc.info
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