class AreaField(models.FloatField):
Method | __init__ |
Undocumented |
Method | from_db_value |
Undocumented |
Method | get_db_prep_value |
Return field's value prepared for interacting with the database backend. |
Method | get_internal_type |
Undocumented |
Method | get_prep_value |
Perform preliminary non-db specific value checks and conversions. |
Instance Variable | geo_field |
Undocumented |
Inherited from FloatField
:
Method | formfield |
Return a django.forms.Field instance for this field. |
Method | to_python |
Convert the input value into the expected Python data type, raising django.core.exceptions.ValidationError if the data can't be converted. Return the converted value. Subclasses should override this. |
Class Variable | default_error_messages |
Undocumented |
Class Variable | description |
Undocumented |
Class Variable | empty_strings_allowed |
Undocumented |
Inherited from Field
(via FloatField
):
Class Method | _choices_is_value |
Undocumented |
Method | __copy__ |
Undocumented |
Method | __deepcopy__ |
Undocumented |
Method | __eq__ |
Undocumented |
Method | __hash__ |
Undocumented |
Method | __lt__ |
Undocumented |
Method | __reduce__ |
Pickling should return the model._meta.fields instance of the field, not a new copy of that field. So, use the app registry to load the model and then the field back. |
Method | __repr__ |
Display the module, class, and name of the field. |
Method | __str__ |
Return "app_label.model_label.field_name" for fields attached to models. |
Method | _check_backend_specific_checks |
Undocumented |
Method | _check_choices |
Undocumented |
Method | _check_db_index |
Undocumented |
Method | _check_deprecation_details |
Undocumented |
Method | _check_field_name |
Check if field name is valid, i.e. 1) does not end with an underscore, 2) does not contain "__" and 3) is not "pk". |
Method | _check_null_allowed_for_primary_keys |
Undocumented |
Method | _check_validators |
Undocumented |
Method | _description |
Undocumented |
Method | _get_flatchoices |
Flattened version of choices tuple. |
Method | cast_db_type |
Return the data type to use in the Cast() function. |
Method | check |
Undocumented |
Method | clean |
Convert the value's type and run validation. Validation errors from to_python() and validate() are propagated. Return the correct value if no error is raised. |
Method | clone |
Uses deconstruct() to clone a new copy of this Field. Will not preserve any class attachments/attribute names. |
Method | contribute_to_class |
Register the field with the model class it belongs to. |
Method | db_check |
Return the database column check constraint for this field, for the provided connection. Works the same way as db_type() for the case that get_internal_type() does not map to a preexisting model field. |
Method | db_parameters |
Extension of db_type(), providing a range of different return values (type, checks). This will look at db_type(), allowing custom model fields to override it. |
Method | db_type |
Return the database column data type for this field, for the provided connection. |
Method | db_type_parameters |
Undocumented |
Method | db_type_suffix |
Undocumented |
Method | deconstruct |
Return enough information to recreate the field as a 4-tuple: |
Method | get_attname |
Undocumented |
Method | get_attname_column |
Undocumented |
Method | get_choices |
Return choices with a default blank choices included, for use as <select> choices for this field. |
Method | get_col |
Undocumented |
Method | get_db_converters |
Undocumented |
Method | get_db_prep_save |
Return field's value prepared for saving into a database. |
Method | get_default |
Return the default value for this field. |
Method | get_filter_kwargs_for_object |
Return a dict that when passed as kwargs to self.model.filter(), would yield all instances having the same value for this field as obj has. |
Method | get_pk_value_on_save |
No summary |
Method | has_default |
Return a boolean of whether this field has a default value. |
Method | pre_save |
Return field's value just before saving. |
Method | rel_db_type |
Return the data type that a related field pointing to this field should use. For example, this method is called by ForeignKey and OneToOneField to determine its data type. |
Method | run_validators |
Undocumented |
Method | save_form_data |
Undocumented |
Method | select_format |
Custom format for select clauses. For example, GIS columns need to be selected as AsText(table.col) on MySQL as the table.col data can't be used by Django. |
Method | set_attributes_from_name |
Undocumented |
Method | validate |
Validate value and raise ValidationError if necessary. Subclasses should override this to provide validation logic. |
Method | value_from_object |
Return the value of this field in the given model instance. |
Method | value_to_string |
Return a string value of this field from the passed obj. This is used by the serialization framework. |
Class Variable | auto_creation_counter |
Undocumented |
Class Variable | default_validators |
Undocumented |
Class Variable | empty_values |
Undocumented |
Class Variable | flatchoices |
Undocumented |
Class Variable | hidden |
Undocumented |
Class Variable | many_to_many |
Undocumented |
Class Variable | many_to_one |
Undocumented |
Class Variable | one_to_many |
Undocumented |
Class Variable | one_to_one |
Undocumented |
Class Variable | related_model |
Undocumented |
Class Variable | system_check_deprecated_details |
Undocumented |
Class Variable | system_check_removed_details |
Undocumented |
Instance Variable | _db_tablespace |
Undocumented |
Instance Variable | _error_messages |
Undocumented |
Instance Variable | _unique |
Undocumented |
Instance Variable | _validators |
Undocumented |
Instance Variable | _verbose_name |
Undocumented |
Instance Variable | attname |
Undocumented |
Instance Variable | auto_created |
Undocumented |
Instance Variable | blank |
Undocumented |
Instance Variable | choices |
Undocumented |
Instance Variable | column |
Undocumented |
Instance Variable | concrete |
Undocumented |
Instance Variable | creation_counter |
Undocumented |
Instance Variable | db_column |
Undocumented |
Instance Variable | db_index |
Undocumented |
Instance Variable | default |
Undocumented |
Instance Variable | editable |
Undocumented |
Instance Variable | error_messages |
Undocumented |
Instance Variable | help_text |
Undocumented |
Instance Variable | is_relation |
Undocumented |
Instance Variable | max_length |
Undocumented |
Instance Variable | model |
Undocumented |
Instance Variable | name |
Undocumented |
Instance Variable | null |
Undocumented |
Instance Variable | primary_key |
Undocumented |
Instance Variable | remote_field |
Undocumented |
Instance Variable | serialize |
Undocumented |
Instance Variable | unique_for_date |
Undocumented |
Instance Variable | unique_for_month |
Undocumented |
Instance Variable | unique_for_year |
Undocumented |
Instance Variable | verbose_name |
Undocumented |
Property | _get_default |
Undocumented |
Property | cached_col |
Undocumented |
Property | db_returning |
Private API intended only to be used by Django itself. Currently only the PostgreSQL backend supports returning multiple fields on a model. |
Property | db_tablespace |
Undocumented |
Property | unique |
Undocumented |
Property | validators |
Some validators can't be created at field initialization time. This method provides a way to delay their creation until required. |
Inherited from RegisterLookupMixin
(via FloatField
, Field
):
Class Method | get_lookups |
Undocumented |
Class Method | register_lookup |
Undocumented |
Static Method | merge_dicts |
Merge dicts in reverse to preference the order of the original list. e.g., merge_dicts([a, b]) will preference the keys in 'a' over those in 'b'. |
Class Method | _clear_cached_lookups |
Undocumented |
Class Method | _get_lookup |
Undocumented |
Class Method | _unregister_lookup |
Remove given lookup from cls lookups. For use in tests only as it's not thread-safe. |
Method | get_lookup |
Undocumented |
Method | get_transform |
Undocumented |
Return field's value prepared for interacting with the database backend.
Used by the default implementations of get_db_prep_save().