Hello,
I am converting from PHP to Django. In my Postgres database I have
three tables:
models.py code:
class Publication(models.Model):
pubtitle = models.TextField()
def __unicode__(self):
return self.pubtitle
class Pathology(models.Model):
pathology = models.CharField(max_length=100)
def __unicode__(self):
return self.pathology
class Pathpubcombo(models.Model):
pathology = models.ForeignKey(Pathology)
publication = models.ForeignKey(Publication)
One publication can have many instances of pathology (one to many).
The pathology list is used by another table (researchpub), as well.
admin.py code:
from mysite.fsafety.models import Pathology
admin.site.register(Pathology)
from mysite.fsafety.models import Pathpubcombo
admin.site.register(Pathpubcombo)
class PathpubInline(admin.TabularInline):
model = Pathpubcombo
fk_name = "publication"
from mysite.fsafety.models import Publication
class PublicationAdmin(admin.ModelAdmin):
# ...
list_display = ('pubtitle', 'year')
search_fields = ['pubtitle', 'pubauthors']
fieldsets = [
(None, {'fields': ['active', 'pubtitle',
'pubauthors', 'pubcitationnum', 'pubwebaddress', 'month', 'year']}),
('Abstract', {'fields': ['pubabstract'], 'classes':
['collapse']}),
]
inlines = [PathpubInline]
admin.site.register(Publication,PublicationAdmin)
My admin form - publication shows more than one pathology on the edit
page, which means the above code works up to this point. It also
gives me 3 empty fields that allows me to continue to add pathologies
to the publication. When I add a new pathology and then save I
receive the following error:
duplicate key value violates unique constraint
"fsafety_pathpubcombo_pkey"
Can anyone please help? This is the first python code I've written.
Thanks,
Anna
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