A Django address model and field. Addresses may be specified by address components or by performing an automatic Google Maps lookup.
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address
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README.md

django-address

Disclaimer

These instructions are a little shabby, I haven't had a whole lot of time to devote to explaining things thoroughly. If you're interested in using this but are having trouble getting it setup please feel free to email me at furious.luke@gmail.com, I'll assist as best I can and update the instructions in the process. Cheers!

Also, there will be bugs, please let me know of any issues and I'll do my best to fix them.

Installation

Previously a patch for Django was required to make this app work, but as of 1.7 the patch is no longer needed. Installation is now done as per usual. The package is installed with:

python setup.py install

Then, add address to your INSTALLED_APPS list in settings.py:

INSTALLED_APPS = (
    ...
    'address',
)

The Model

The rationale behind the model structure is centered on trying to make it easy to enter addresses that may be poorly defined. The model field included uses Google Maps API v3 (via the nicely done geocomplete jquery plugin) to determine a proper address where possible. However if this isn't possible the raw address is used and the user is responsible for breaking the address down into components.

It's currently assumed any address is represent-able using four components: country, state, locality and street address. In addition, country code, state code and postal code may be stored, if they exist.

There are four Django models used:

  Country
    name
    code

  State
    name
    code
    country -> Country

  Locality
    name
    postal_code
    state -> State

  Address
    raw
    street_number
    route
    locality -> Locality

Address Field

To simplify storage and access of addresses, a subclass of ForeignKey named AddressField has been created. It provides an easy method for setting new addresses.

Creation

It can be created using the same optional arguments as a ForeignKey field. For example:

  from address.models import AddressField

  class MyModel(models.Model):
    address1 = AddressField()
    address2 = AddressField(related_name='+', blank=True, null=True)

Setting Values

Values can be set either by assigning an Address object:

  addr = Address(...)
  addr.save()
  obj.address = addr

Or by supplying a dictionary of address components:

  obj.address = {'street_number': '1', route='Somewhere Ave', ...}

The structure of the address components is as follows:

  {
    'raw': '1 Somewhere Ave, Northcote, VIC 3070, AU',
    'street_number': '1',
    'route': 'Somewhere Ave',
    'locality': 'Northcote',
    'postal_code': '3070',
    'state': 'Victoria',
    'state_code': 'VIC',
    'country': 'Australia',
    'country_code': 'AU'
  }

All except the raw field can be omitted. In addition, a raw address may be set directly:

obj.address = 'Out the back of 1 Somewhere Ave, Northcote, Australia'

Getting Values

When accessed, the address field simply returns an Address object. This way all components may be accessed naturally through the object. For example::

  route = obj.address.route
  state_name = obj.address.locality.state.name

Forms

Included is a form field for simplifying address entry. A Google maps auto-complete is performed in the browser and passed to the view. If the lookup fails the raw entered value is used.

TODO: Talk about this more.

Partial Example

The model:

from address.models import AddressField

class Person(models.Model):
  address = AddressField()

The form:

from address.forms import AddressField

class PersonForm(forms.Form):
  address = AddressField()

The template:

<head>
{{ form.media }} <!-- needed for JS/GoogleMaps lookup -->
</head>
<body>
  {{ form }}
</body>