a D ge @sFddlmZddlmZddlmZGdddZGdddeZdS) )ImproperlyConfigured)models)resolve_model_stringc@s2eZdZdZddZd ddZdd Zd d ZdS) ObjectTypeRegistryz Implements a lookup table for mapping objects to values according to the object type. The most specific type according to the object's inheritance chain is selected. cCsi|_i|_dSNvalues_by_exact_classvalues_by_classselfr U/var/www/lab.imftr.de/x/nb_venv/lib/python3.9/site-packages/wagtail/utils/registry.py__init__ szObjectTypeRegistry.__init__NFcCs|r||j|<n ||j|<dSrr)r clsvalue exact_classr r r registers zObjectTypeRegistry.registerc CsZz |j|WStyT|D],}z|j|WYStyLYq"0q"Yn0dSr)rKeyErrormror )r rZancestorr r r get_by_types    zObjectTypeRegistry.get_by_typecCs*||j}t|r&t|ts&||}|Sr)r __class__callable isinstancetype)r objrr r r get%s zObjectTypeRegistry.get)NF)__name__ __module__ __qualname____doc__rrrrr r r r rs   rcs6eZdZdZfddZd fdd Zdd ZZS) ModelFieldRegistrya Handles the recurring pattern where we need to register different values for different model field types, and retrieve the one that most closely matches a given model field, according to its type (taking inheritance into account), and in the case of foreign keys, the type of the related model (again, taking inheritance into account). For example, this is used by wagtail.admin.forms.models when constructing model forms: we use such a registry to retrieve the appropriate dict of arguments to pass to the form field constructor. A lookup for a models.TextField will return a dict specifying a text area widget, and a lookup for a foreign key to Image will return a dict specifying an image chooser widget. cs"t|j|jtj<i|_dSr)superrforeign_key_lookupr r ForeignKeyvalues_by_fk_related_modelr rr r r<s zModelFieldRegistry.__init__NFcs>|r(|tjkr||jt|<q:tdntj|||ddS)NzTThe 'to' argument on ModelFieldRegistry.register is only valid for ForeignKey fields)rr)rr#r$rrr!r)r Z field_classtorrr%r r rDs zModelFieldRegistry.registercCsPd}|jj}|D]}||jvr|j|}q2qt|rLt|tsL||}|Sr)Z remote_fieldmodelrr$rrr)r fieldrZ target_modelr'r r r r"Os   z%ModelFieldRegistry.foreign_key_lookup)NNF)rrrrrrr" __classcell__r r r%r r .s  r N)Zdjango.core.exceptionsrZ django.dbrZwagtail.coreutilsrrr r r r r s   '