A Django model field that stores lists of values. Implemented using the PostgreSQL array type.

Usage

Note that this field currently works only on Postgres/psycopg2. Requires Django >= 1.2.

Four field types are defined in the dbarray module:

from django.db import models

import dbarray

class Foo(models.Model):

    numlist = dbarray.IntegerArrayField()
    floatlist = dbarray.FloatArrayField(null=True)
    textlist = dbarray.TextArrayField(
        help_text="Fields take the same arguments as their corresponding Django fields.")
    charlist = dbarray.CharArrayField(max_length=5)

Custom fields

To define an array type based on a field other than Integer, Float, Text, or Char:

import dbarray

class FooArrayField(dbarray.ArrayFieldBase, FooField):
    __metaclass__ = dbarray.ArrayFieldMetaclass

This may or may not work depending on a few factors; you might, for example, need to override the db_type method to make it add [] to right spot in the column type used in generated SQL.