thats because both Table objects need to be present in the MetaData
when used. Ultimately your application can't run unless both "queue"
and "filequeue" have been imported in some way.
On Dec 23, 2008, at 1:21 PM, Michael Mileusnich wrote:
> I am not sure based on the project if I can have a module that
> imports both of them. How can I use the string based ForeignKey? I
> may be doing it in correctly because it says the table does not
> exist that I try to reference.
>
> On Tue, Dec 23, 2008 at 12:18 PM, Michael Bayer <mike...@zzzcomputing.com
> > wrote:
>
> ForeignKey accepts strings to remove the inconvenience of handling
> circular imports. Both dependent tables will need to be present
> within the shared MetaData object at the point at which the Table
> object is first used, though, so another module that imports both
> queue and filequeue would be best.
>
> On Dec 23, 2008, at 10:48 AM, justmike2...@gmail.com wrote:
>
> >
> > Over the last couple days I have been having an issue with
> relations/
> > imports. I have a class called queue where I define all my columns.
> > Within queue I have a function that references a class filequeue
> so I
> > need to 'from filequeues import filequeue'. The queue class itself
> > has relations with other classes/tables. My problem is that within
> > filequeue, I need to 'from queues import queue' in order to
> ForeignKey
> > (queue.queueid). Well now queue imports filequeue and filequeue
> > imports queue causing an issue. I tried to ForeignKey
> > ('QUEUES.queueid') but SQLAlch says it cannot find the tables.
> >
> > Any ideas?
> >
> > >
>
>
>
>
>
> >
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