<s> from __future__ import unicode_literals <EOL> from django . core . exceptions import PermissionDenied <EOL> from django . db import models <EOL> from django . utils . translation import ugettext <EOL> from acls . models import AccessControlList <EOL> from permissions import Permission <EOL> class ModelAttribute ( object ) : <EOL> __registry = { } <EOL> @ classmethod <EOL> def get_for ( cls , model , type_names = None ) : <EOL> result = [ ] <EOL> try : <EOL> for type_name , attributes in cls . __registry [ model ] . iteritems ( ) : <EOL> if not type_names or type_name in type_names : <EOL> result . extend ( attributes ) <EOL> return result <EOL> except IndexError : <EOL> if model . __class__ == models . base . ModelBase : <EOL> raise <EOL> return cls . get_for [ type ( model ) ] <EOL> @ classmethod <EOL> def get_choices_for ( cls , model , type_names = None ) : <EOL> return [ <EOL> ( <EOL> attribute . name , attribute <EOL> ) for attribute in cls . get_for ( model , type_names ) <EOL> ] <EOL> @ classmethod <EOL> def help_text_for ( cls , model , type_names = None ) : <EOL> result = [ ] <EOL> for count , attribute in enumerate ( cls . get_for ( model , type_names ) , <NUM_LIT:1> ) : <EOL> result . append ( <EOL> '<STR_LIT>' . format ( <EOL> count , unicode ( attribute . get_display ( show_name = True ) ) <EOL> ) <EOL> ) <EOL> return '<STR_LIT:U+0020>' . join ( <EOL> [ ugettext ( '<STR_LIT>' ) , '<STR_LIT:U+002CU+0020>' . join ( result ) ] <EOL> ) <EOL> def get_display ( self , show_name = False ) : <EOL> if self . description : <EOL> return '<STR_LIT>' . format ( <EOL> self . name if show_name else self . label , self . description <EOL> ) <EOL> else : <EOL> return unicode ( self . name if show_name else self . label ) <EOL> def __unicode__ ( self ) : <EOL> return self . get_display ( ) <EOL> def __init__ ( self , model , name , label = None , description = None , type_name = None ) : <EOL> self . model = model <EOL> self . label = label <EOL> self . name = name <EOL> self . description = description <EOL> for field in model . _meta . fields : <EOL> if field . name == name : <EOL> self . label = field . verbose_name <EOL> self . description = field . help_text <EOL> self . __registry . setdefault ( model , { } ) <EOL> if isinstance ( type_name , list ) : <EOL> for single_type in type_name : <EOL> self . __registry [ model ] . setdefault ( single_type , [ ] ) <EOL> self . __registry [ model ] [ single_type ] . append ( self ) <EOL> else : <EOL> self . __registry [ model ] . setdefault ( type_name , [ ] ) <EOL> self . __registry [ model ] [ type_name ] . append ( self ) <EOL> class MissingItem ( object ) : <EOL> _registry = [ ] <EOL> @ classmethod <EOL> def get_all ( cls ) : <EOL> return cls . _registry <EOL> def __init__ ( self , label , condition , description , view ) : <EOL> self . label = label <EOL> self . condition = condition <EOL> self . description = description <EOL> self . view = view <EOL> self . __class__ . _registry . append ( self ) <EOL> class Filter ( object ) : <EOL> _registry = { } <EOL> @ classmethod <EOL> def get ( cls , slug ) : <EOL> return cls . _registry [ slug ] <EOL> @ classmethod <EOL> def all ( cls ) : <EOL> return cls . _registry <EOL> def __init__ ( self , label , slug , filter_kwargs , model , object_permission = None , hide_links = False ) : <EOL> self . label = label <EOL> self . slug = slug <EOL> self . filter_kwargs = filter_kwargs <EOL> self . model = model <EOL> self . object_permission = object_permission <EOL> self . hide_links = hide_links <EOL> self . __class__ . _registry [ self . slug ] = self <EOL> def __unicode__ ( self ) : <EOL> return unicode ( self . label ) <EOL> def get_queryset ( self , user ) : <EOL> queryset = self . model . objects . all ( ) <EOL> for kwargs in self . filter_kwargs : <EOL> queryset = queryset . filter ( ** kwargs ) <EOL> queryset = queryset . distinct ( ) <EOL> if self . object_permission : <EOL> try : <EOL> Permission . check_permissions ( <EOL> user , ( self . object_permission , ) <EOL> ) <EOL> except PermissionDenied : <EOL> return AccessControlList . objects . filter_by_access ( <EOL> self . object_permission , user , queryset <EOL> ) <EOL> else : <EOL> return queryset <EOL> else : <EOL> return queryset <EOL> class Package ( object ) : <EOL> _registry = [ ] <EOL> @ classmethod <EOL> def get_all ( cls ) : <EOL> return cls . _registry <EOL> def __init__ ( self , label , license_text ) : <EOL> self . label = label <EOL> self . license_text = license_text <EOL> self . __class__ . _registry . append ( self ) </s>
