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I have basically a username is unique (case insensitive), but the case matters when displaying as provided by the user.
I have the following requirements:
Is this possible in Django?
The only solution I came up with is "somehow" override the Model manager, use an extra field, or always use 'iexact' in searches.
I'm on Django 1.3 and PostgreSQL 8.4.2.
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So, the programmer has told Django explicitly, 'I want case-insensitive comparison', and Django tells MySQL, 'We want default comparison'. This is not field_icontains but rather some field_usingdefaultsettingscontains. So, case-sensitivity is explicitly requested, while case-insensitivity is implied.
unique=True sets the field to be unique i.e. once entered a value in a field, the same value can not be entered in any other instance of that model in any manner. It is generally used for fields like Roll Number, Employee Id, etc which should be unique.
case insensitive (not comparable) (computer science) Treating or interpreting upper- and lowercase letters as being the same.
name__iexact means that you are doing a case insensitive match on the field name. check for instance http://docs.djangoproject.com/en/dev/topics/db/queries/ for more documentation on django queries.
As of Django 1.11, you can use CITextField, a Postgres-specific Field for case-insensitive text backed by the citext type.
from django.db import models from django.contrib.postgres.fields import CITextField class Something(models.Model): foo = CITextField() Django also provides CIEmailField and CICharField, which are case-insensitive versions of EmailField and CharField.
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