doc/privacy: initial version for privacy feature (#843)

examples/privacyadmin/README.md

@@ -1,4 +1,4 @@
-# Privacy Admin Example
+# Privacy Admin Only Example
 
 An example for an application that allows any user to read any data,
 but accepts mutations only from viewers with admin role.

examples/privacyadmin/ent/schema/user.go

@@ -27,12 +27,12 @@ func (User) Fields() []ent.Field {
 // Policy defines the privacy policy of the User.
 func (User) Policy() ent.Policy {
 	return privacy.Policy{
-		Mutation: []privacy.MutationRule{
+		Mutation: privacy.MutationPolicy{
 			rule.DenyIfNoViewer(),
 			rule.AllowIfAdmin(),
 			privacy.AlwaysDenyRule(),
 		},
-		Query: []privacy.QueryRule{
+		Query: privacy.QueryPolicy{
 			privacy.AlwaysAllowRule(),
 		},
 	}