Hello
I have a Sujet that can have sub-Sujet recursively.
Here is a test among several ones that does not work :
class Sujet(models.Model):
objects = None
numero = models.PositiveSmallIntegerField()
titre = models.CharField(max_length=100)
partie = models.ForeignKey('self', models.CASCADE, blank=True,
null=True, db_index=False)
def __str__(self):
if self.partie is None:
s = ''
else:
s = str(self.partie)
s2 = ''
if len(s) > 0:
for i, c in enumerate(s):
if c.isdigit():
s2 = s[:(i+2)]
elif c == ' ': break
s = s2 + str(self.numero) + '. '
s += str(self.titre)
return s
@admin.register(Sujet)
@admin.display(ordering='__str__')
class SujetAdmin(admin.ModelAdmin):
fields = ('partie', 'numero', 'titre')
list_display = ('__str__',)
The asked ordering does work. Apparently, it sorts by decreasing order of
the Sujet creation.
Serge Alard
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