Class ManyToOneRel

Declaration

Documentation

``_meta.get_fields()`` returns this class to provide access to the field
flags for the reverse relation.

Note: Because we somewhat abuse the Rel objects by using them as reverse
fields we get the funny situation where
``ManyToOneRel.many_to_one == False`` and
``ManyToOneRel.one_to_many == True``. This is unfortunate but the actual
ManyToOneRel class is a private API and there is work underway to turn
reverse relations into actual fields.

Methods

• ▷ def __getstate__(self)

  source link
• ▶ def __init__(self, field, to, field_name, related_name=None, related_query_name=None, ...) override

  def __init__(

  self,

  field,

  to,

  field_name,

  related_name=None,

  related_query_name=None,

  limit_choices_to=None,

  parent_link=False,

  on_delete=None,

  )

  source link

  This method overrides django.db.models.fields.reverse_related.ForeignObjectRel.__init__.

  Overrides

  This method is overriden in:

  • django.db.models.fields.reverse_related.OneToOneRel
• ▷ def get_related_field(self)

  Return the Field in the 'to' object to which this relationship is tied.

  source link
• ▶ def identity(self) override @property

  @property
  def identity(self)

  source link

  This method overrides django.db.models.fields.reverse_related.ForeignObjectRel.identity.

• ▶ def set_field_name(self) override

  inherited doc Set the related field's name, this is not available until later stages of app loading, so set_field_name is called from set_attributes_from_rel()

  source link

  This method overrides django.db.models.fields.reverse_related.ForeignObjectRel.set_field_name.

Inherited methods

• Methods inherited from django.db.models.fields.reverse_related.ForeignObjectRel:
  __eq__, __hash__, __repr__, db_type, get_accessor_name, get_cache_name, get_choices, get_extra_restriction, get_internal_type, get_joining_columns, get_lookup, get_path_info, hidden, is_hidden, many_to_many, many_to_one, name, one_to_many, one_to_one, related_model, remote_field, target_field
• Methods inherited from django.db.models.fields.mixins.FieldCacheMixin:
  delete_cached_value, get_cached_value, is_cached, set_cached_value

Subclasses

• django.db.models.fields.reverse_related.OneToOneRel

Reexports

• Imported in django.contrib.admin.views.main.
• Imported in django.db.models.fields.related.
• Imported in django.db.models.

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