Changes between Initial Version and Version 7 of Ticket #8279


Ignore:
Timestamp:
08/29/2008 12:41:18 AM (7 years ago)
Author:
mtredinnick
Comment:

(Fixed description formatting).

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  • Ticket #8279

    • Property Patch needs improvement unset
    • Property Needs tests unset
    • Property Milestone changed from to 1.0
    • Property Needs documentation unset
    • Property Triage Stage changed from Unreviewed to Accepted
  • Ticket #8279 – Description

    initial v7  
     1{{{
     2#!python
    13class Entry(models.Model):
    24    more_fields
    35    related = models.ManyToManyField('self', verbose_name=_('related entries'))
    46    translations = models.ManyToManyField('self', verbose_name=_('translations'))
    5 
     7}}}
    68
    79From the database (postgres):
    8 
     10{{{
    911blango=# select * from blango_entry_related;
    1012 id | from_entry_id | to_entry_id
     
    3032
    3133blango=#
    32 
     34}}}
    3335
    3436And from ./manage.py shell:
     37{{{
    3538In [2]: from blango.models import *;Entry.objects.get(pk=27).related.all()
    3639Out[2]: []
    3740In [3]: from blango.models import *;Entry.objects.get(pk=27).translations.all()
    3841Out[3]: []
     42}}}
    3943
    4044The database query log indicates that Django is using the wrong table:
     45{{{
    41462008-08-12 22:38:10 CEST LOG:  statement: SELECT "blango_entry"."id", "blango_entry"."title", "blango_entry"."slug", "blango_entry"."author_id", "blango_entry"."language_id", "blango_entry"."body", "blango_entry"."body_html", "blango_entry"."pub_date", "blango_entry"."draft", "blango_entry"."allow_comments" FROM "blango_entry" INNER JOIN "blango_entry_translations" ON ("blango_entry"."id" = "blango_entry_translations"."to_entry_id") WHERE "blango_entry_translations"."from_entry_id" = 27
    42 
     47}}}
    4348
    4449If I change the order of the m2m in the model to:
    4550
     51{{{
     52#!python
    4653class Entry(models.Model):
    4754   more_fields
    4855   translations = models.ManyToManyField('self', verbose_name=_('translations'))
    4956   related = models.ManyToManyField('self', verbose_name=_('related entries'))
    50 
     57}}}
    5158
    5259Then I get all the related entries as related and as translations.
    5360
    5461If it serves as help, I've added a print statement in django/db/models/fields/related.py at line 776:
    55 
     62{{{
    5663...
    5764775         else:
     
    5966777             return '%s_%s' % (opts.db_table, self.name)
    6067...
     68}}}
    6169
    6270Which prints:
    6371
     72{{{
    6473In [1]: from blango.models import *;Entry.objects.get(pk=27).related.all()
    6574blango_entry_related
     
    7180Out[2]: []
    7281
     82}}}
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