On 7/20/06, Geta <[EMAIL PROTECTED]> wrote:
There isn't a simple way to do this - however, if you're feeling adventurous, there are a few things that might be worth trying.
The m2m table name is determined by the m2m_db_table() method on the ManyToManyField itself (from django.db.models.fields.related.py). Similarly, the m2m_column_name() and m2m_reverse_name() methods on the ManyToManyField determine the column names that are used on the m2m table. These three functions are curried versions of more generic functions (_get_m2m_db_table, et al). At present, they are hard coded to use the field and related model names as the basis for naming of the m2m table.
If you were to subclass ManyToManyField and override the _get_m2m versions of the functions, or modify the m2m_...() functions on a field instance, you might find that you can point the m2m relation at your existing table.
As a more general solution - your idea is reasonable enough, and shouldn't be too hard to implement. I would suggest submitting it as an enhancement request.
Yours,
Russ Magee %-)
I know you can
specify META.db_table to specify database table names and db_column for
field names, but I couldn't see where/if this could be set for a
ManyToManyField -- is it possible?
There isn't a simple way to do this - however, if you're feeling adventurous, there are a few things that might be worth trying.
The m2m table name is determined by the m2m_db_table() method on the ManyToManyField itself (from django.db.models.fields.related.py). Similarly, the m2m_column_name() and m2m_reverse_name() methods on the ManyToManyField determine the column names that are used on the m2m table. These three functions are curried versions of more generic functions (_get_m2m_db_table, et al). At present, they are hard coded to use the field and related model names as the basis for naming of the m2m table.
If you were to subclass ManyToManyField and override the _get_m2m versions of the functions, or modify the m2m_...() functions on a field instance, you might find that you can point the m2m relation at your existing table.
As a more general solution - your idea is reasonable enough, and shouldn't be too hard to implement. I would suggest submitting it as an enhancement request.
Yours,
Russ Magee %-)
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