> > db = SQLAlchemyFixture()
> > # anytime before db.data().setup() ...
> > db.session = my_session
>
> In my current system I have a single global session that is used for
> everything. Is there any reason you can see that I could not just
> reuse this session in all the test cases or should I be creating a new
> on each time?
Are you using postgres? The only problem I foresee is if your test
does some work with table instances shared by the fixtures but doesn't
explicitly call rollback when there is an exception. You will
probably even get a deadlock if that happens. `ps aux | grep
postgres` will show if a fixture's delete statement is waiting on
another transaction. I've tried to accomodate for this scenario so
let me know if you run into it again so I can add some tests for it.
> The other thing you lose with an SQL dump is that the output may not
> work across different database backends. That is why I would really
> like the loading of the table to be routed back through SA so we can
> have some support for moving the testing data to whatever db's you end
> up needed. (in my particular case this isn't really going to work
> because I need GIS support which is non portable, but it sounds like a
> nice capability to me)
>
agreed. I'm not entirely convinced that XML is the way to go, but
this makes sense (and I like the plugin idea). It would be mighty
fast with lxml.etree.iterparse(). still thinking...
> ...and points out a problem I am going to
> have using it. In my current code I am not keeping the tables or
> mappers around. Instead I have a database manager class that sets
> everthing up and simply holds onto the session and engine that should
> be used to query the database. I rely upon the mapped classes to keep
> track of the table and metadata references internally.
>
> So... is there any way to associated a dataset with the Class type
> that is associated with the data in the dataset?
>
> for example maybe something like:
>
> class anything_I_want(DataSet):
> mappedType = MyDataClass
> class click:
> name="click"
>
> or something else along these lines. This seems like it would work
> well to tie the data back to the class type that is actually being
> mapped. Then the "anything_I_want" class is really just a list of
> MyDataClass objects that need to be populated into the database.
Yes, I've made an attempt to support mapped classes but there are many
different ways to map classes so I might not have captured them all.
Please try:
class anything_i_want(DataSet):
class Meta:
storable=MyDataClass
class click:
name="click"
and let me know if that doesn't work, so I can get an idea for how you
are using mapped classes.
-Kumar
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