a C g@sddlmZGdddZGdddeZGdddZGdd d eeZeejZGd d d eeZ Gd d d eje dZ Gdddeej j Z Gddde ej jZGddde ejedZdS))formsc@seZdZdZdddZdS)Optionsa An object that serves as a container for configuration options. When a class is defined using OptionCollectingMetaclass as its metaclass, any attributes defined on an inner `class Meta` will be copied to an Options instance which will then be accessible as the class attribute `_meta`. The base Options class has no functionality of its own, but exists so that specific configuration options can be defined as mixins and collectively merged in to either Options or another base class with the same interface such as django.forms.models.ModelFormOptions, to arrive at a final class that recognises the desired set of options. NcCsdSNselfoptionsrrV/var/www/lab.imftr.de/x/nb_venv/lib/python3.9/site-packages/permissionedforms/forms.py__init__szOptions.__init__)N)__name__ __module__ __qualname____doc__r rrrr rs rcs$eZdZdZdZfddZZS)OptionCollectingMetaclassa% Metaclass that handles inner `class Meta` definitions. When a class using OptionCollectingMetaclass defines an inner Meta class and an `options_class` attribute specifying an Options class, an Options object will be created from it and set as the class attribute `_meta`. Ncs0t||||}|jr,|t|dd|_|S)NZMeta)super__new__ options_classgetattr_meta)Zmcsnamebasesattrs new_class __class__rr rsz!OptionCollectingMetaclass.__new__)r r r rrr __classcell__rrrr rsrcs"eZdZdZdfdd ZZS)PermissionedFormOptionsMixinz9Handles the field_permissions option for PermissionedFormNcst|t|dd|_dS)Nfield_permissions)rr rrrrrr r &s z%PermissionedFormOptionsMixin.__init__)Nr r r rr rrrrr r$src@seZdZdZdS)PermissionedFormOptionsz"Options class for PermissionedFormNr r r rrrrr r+src@seZdZdZeZdS)PermissionedFormMetaclassz Extends the django.forms.Form metaclass with support for an inner `class Meta` that accepts a `field_permissions` configuration option N)r r r rrrrrrr r!1sr!cs&eZdZdZddfdd ZZS)PermissionedFormax An extension to `django.forms.Form` to accept an optional `for_user` keyword argument indicating the user the form will be presented to. Any fields named in the `field_permissions` dict in Meta will apply a permission test on the named permission using `User.has_perm`; if the user lacks that permission, the field will be omitted from the form. N)for_usercsJtj|i||rF|jjp i}|D]\}}||s*|j|=q*dSr)rr rritemsZhas_permfields)rr#argskwargsZ field_perms field_namepermrrr r Bs   zPermissionedForm.__init__rrrrr r"9sr") metaclassc@seZdZdZdS)PermissionedModelFormOptionszp Options class for PermissionedModelForm; extends ModelForm's options to accept `field_permissions` Nr rrrr r+Ksr+c@seZdZdZeZdS)PermissionedModelFormMetaclassa Metaclass for PermissionedModelForm; extends the ModelForm metaclass to use PermissionedModelFormOptions in place of ModelFormOptions and thus accept the `field_permissions` option. Note that because ModelForm does not participate in the OptionCollectingMetaclass logic, this has the slightly hacky effect of letting ModelFormMetaclass construct a ModelFormOptions object for the lifetime of ModelFormMetaclass.__new__, which we promptly throw out and recreate as a PermissionedModelFormOptions object. N)r r r rr+rrrrr r,Rs r,c@seZdZdZdS)PermissionedModelFormzQA ModelForm that implements the `for_user` keyword argument from PermissionedFormNr rrrr r-`sr-N)ZdjangorrtyperrrZFormZ FormMetaclassr!r"modelsZModelFormOptionsr+ZModelFormMetaclassr,Z ModelFormr-rrrr s