== Django model syntax change ==

As of ____, Django's model syntax has changed. If you're using models that use old (pre-____) syntax, you'll need to convert them according to the these instructions.

=== What changed ===

 * Fields are now attributes of the model class, rather than members of a {{{fields}}} list.
 * Meta information (anything that's NOT a field, such as {{{ordering}}}, {{{admin}}}, {{{unique_together}}}, etc.) now goes in an inner class, called {{{META}}} (note the all caps). This class doesn't have a parent class.
 * Each field is required to have an explicit name -- even {{{ForeignKey}}}s, {{{ManyToManyField}}}s and {{{OneToOneFields}}}. This solves the problem of "How do I refer to my field from within admin.fields?"
 * {{{rel_name}}} is no longer used for {{{ForeignKey}}}s. If your model has more than one {{{ForeignKey}}} to the same foreign model, differentiate the fields using the field name, not {{{rel_name}}}. See [http://www.djangoproject.com/documentation/models/m2o_recursive2/ Relating a model to another model more than once] for an example.
 * {{{rel_name}}} is no longer used for {{{ManyToManyField}}}s. If your model has more than one {{{ManyToManyField}}} to the same foreign model, differentiate the fields using the field name, not {{{rel_name}}}. Also, give both of the {{{ManyToManyField}}}s a {{{singular}}} attribute, which defines the name of the related object in singular format. (This is an obscure case, but it's included here for completeness.)

=== Examples ===

Old syntax example:

{{{
#!python
class Foo(meta.Model):
    fields = (
        meta.CharField('first_name', maxlength=30),
        meta.CharField('last_name', maxlength=30),
        meta.ForeignKey(Bar),
        meta.ManyToManyField(Sites),
    )
    ordering = ('-bar_id',)
    admin = meta.Admin(
        fields = (
            (None, {'fields': ('first_name', 'last_name', 'bar_id', 'sites')}),
        ),
    )
}}}

New syntax example:

{{{
#!python
class Foo(meta.Model):
    first_name = meta.CharField('first_name', maxlength=30)
    last_name = meta.CharField('last_name', maxlength=30)
    bar = meta.ForeignKey(Bar)
    sites = meta.ManyToManyField(Sites)
    class META:
        ordering = ('-bar',)
        admin = meta.Admin(
            fields = (
                (None, {'fields': ('first_name', 'last_name', 'bar', 'sites')}),
            ),
        )
}}}

Notes:

 * {{{bar}}} and {{{sites}}} now have explicit names, and {{{admin.fields}}} was changed to use {{{bar}}} instead of {{{bar_id}}}.
 * {{{ordering}}} was also changed to use the explicit name {{{bar}}} instead of {{{bar_id}}}.
 * Don't forget to remove the commas after each {{{Field}}}, because they're class attributes instead of list elements now.