o ChF@sNddlmZddlmZddlmZddlmZddlm Z GdddZ d S) )ObjectDoesNotExist) NOT_PROVIDED)Manager)widgets) FieldErrorc@sfeZdZdZddgZdddeddddfddZdd Zd d Zd d Z dddZ ddZ dddZ dS)Fielda ``Field`` represents a mapping between an ``instance`` field and a representation of the field's data. :param attribute: A string of either an instance attribute or callable of the instance. :param column_name: An optional column name for the column that represents this field in the export. :param widget: Defines a widget that will be used to represent this field's data in the export, or transform the value during import. :param readonly: A Boolean which defines if this field will be ignored during import. :param default: This value will be returned by :meth:`~import_export.fields.Field.clean` if this field's widget returned a value defined in :attr:`~import_export.fields.empty_values`. :param saves_null_values: Controls whether null values are saved on the instance. This can be used if the widget returns null, but there is a default instance value which should not be overwritten. :param dehydrate_method: You can provide a `dehydrate_method` as a string to use instead of the default `dehydrate_{field_name}` syntax, or you can provide a callable that will be executed with the instance as its argument. :param m2m_add: changes save of this field to add the values, if they do not exist, to a ManyToMany field instead of setting all values. Only useful if field is a ManyToMany field. NFTc Cs@||_||_||_|st}||_||_||_||_||_ dSN) attributedefault column_namerWidgetwidgetreadonlysaves_null_valuesdehydrate_methodm2m_add) selfr r rr rrrrrf/var/www/html/myvaluetrips/my_value_trip_new/venv/lib/python3.10/site-packages/import_export/fields.py__init__-s  zField.__init__cCs<|jjd|jj}|jdurd|d|jdSd|S)zC Displays the module, class and name of the field. .Nz<%s>) __class__ __module____name__r )rpathrrr__repr__Cs zField.__repr__cKs|z||j}Wntytd|jt|fw|jj|fd|i|}||jvr<|jtkrrrrrr s$!   !rN) django.core.exceptionsrdjango.db.models.fieldsrdjango.db.models.managerrr r exceptionsrrrrrrs