We *could* do slightly better, though, no?
i.e., If someone did a single-table SELECT which queried all the primary
keys of a table, he should be able to edit stuff. This would often be
the case for *me* -- I formulate my own single-table SELECT statements
as often as not.
This would be simple enough to implement if we could find 3 things:
- Is this a single-table SELECT?
- Do we have all the primary keys? ("SHOW KEYS"...)
- Are there any aggregate functions?
It occurs to me these are all very general questions one could ask about
queries, and these functions could be re-used elsewhere :).
Selecting but not displaying the primary keys of a single-table
non-aggregate query is another thought, don't know how good an idea that
is...
---------------
Adam Hooper
adamh@stripped
> -----Original Message-----
> From: Jorge del Conde [mailto:jorge@stripped]
> Sent: Thursday, April 25, 2002 12:10 PM
> To: 'Adam Hooper'; mycc@stripped
> Subject: RE: Bug in inline editing: only keys by visible values
>
>
> Hi!
>
> After thinking on the problem a bit, there is no easy way to fix this.
>
> The inline editing features will only work when one
> double-clicks on a table and keeps the original query unchanged.
>
> We will be able to support this feature to all its extent
> once mysql supports prepare statements.
>
> Regards,
> Jorge
> --
> For technical support contracts, visit https://order.mysql.com/
> __ ___ ___ ____ __
> / |/ /_ __/ __/ __ \/ / Mr. Jorge del Conde <jorge@stripped>
> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, Full-Time Developer
> /_/ /_/\_, /___/\___\_\___/ Mexico City, Mexico
> <___/ www.mysql.com
>
>
> > -----Original Message-----
> > From: Adam Hooper [mailto:adamh@stripped]
> > Sent: Friday, April 19, 2002 5:41 AM
> > To: mycc@stripped
> > Subject: Bug in inline editing: only keys by visible values
> >
> >
> > Editing a field when you have NOT done "select *" but rather
> > "select column1, column2, ..." has a very large chance of
> > updating the wrong columns. It'll do it if:
> > - Not all the primary key columns have been selected
> > - Not all of the multi-key columns have been selected
> > - Not all the fields have been selected (if there are no
> > primary/multi keys)
> >
> > Also, just about any query that selects from more than one
> > table will fail. Maybe once in a while freaky results would
> > show up if two tables have all the same field names, but it's
> > not likely.
> >
> > The solution to both these problems: Disable inline editing
> > when it won't work. The second case shouldn't be too hard -
> > maybe simply parsing the query for "JOIN" and making sure
> > there's only one table after "FROM", maybe? For the first, (I
> > think) the CSqlTable::exec() query would need to know table
> > information. That's well beyond my skill :).
> >
> > Hope this helps,
> >
> > ---------------
> > Adam Hooper
> > adamh@stripped
> >
> >
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