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from django.contrib import admin
from django.contrib.auth import get_permission_codename
from ..permissions import perm_exists
class ObjectPermissionsModelAdminMixin(object):
def has_view_permission(self, request, obj=None):
opts = self.opts
codename = get_permission_codename("view", opts)
perm = "%s.%s" % (opts.app_label, codename)
if perm_exists(perm):
return request.user.has_perm(perm, obj)
else:
return self.has_change_permission(request, obj)
def has_change_permission(self, request, obj=None):
opts = self.opts
codename = get_permission_codename("change", opts)
return request.user.has_perm("%s.%s" % (opts.app_label, codename), obj)
def has_delete_permission(self, request, obj=None):
opts = self.opts
codename = get_permission_codename("delete", opts)
return request.user.has_perm("%s.%s" % (opts.app_label, codename), obj)
class ObjectPermissionsInlineModelAdminMixin(ObjectPermissionsModelAdminMixin):
def has_change_permission(self, request, obj=None): # pragma: no cover
opts = self.opts
if opts.auto_created:
for field in opts.fields:
if field.rel and field.rel.to != self.parent_model:
opts = field.rel.to._meta
break
codename = get_permission_codename("change", opts)
return request.user.has_perm("%s.%s" % (opts.app_label, codename), obj)
def has_delete_permission(self, request, obj=None): # pragma: no cover
if self.opts.auto_created:
return self.has_change_permission(request, obj)
return super(
ObjectPermissionsInlineModelAdminMixin, self
).has_delete_permission(request, obj)
class ObjectPermissionsModelAdmin(ObjectPermissionsModelAdminMixin, admin.ModelAdmin):
pass
class ObjectPermissionsStackedInline(
ObjectPermissionsInlineModelAdminMixin, admin.StackedInline
):
pass
class ObjectPermissionsTabularInline(
ObjectPermissionsInlineModelAdminMixin, admin.TabularInline
):
pass
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