fix(publication): log warning when relation field is unknown and return false

packages/forest_admin_datasource_customizer/lib/forest_admin_datasource_customizer/decorators/publication/publication_collection_decorator.rb

@@ -62,6 +62,12 @@ def published?(name)
           # Implicitly hidden
           field = child_collection.schema[:fields][name]
 
+          if field.nil?
+            message = "Field '#{name}' not found in schema of collection '#{self.name}'"
+            ForestAdminAgent::Facades::Container.logger.log('Warn', message)
+            return false
+          end
+
           if field.type == 'ManyToOne'
             return (
               datasource.published?(field.foreign_collection) &&

packages/forest_admin_datasource_customizer/spec/lib/forest_admin_datasource_customizer/decorators/publication/publication_collection_decorator_spec.rb

@@ -191,6 +191,18 @@ module Publication
             expect(@decorated_person.schema[:fields]).to have_key('my_book_person')
           end
         end
+
+        context 'when the relations is unknown (type nil)' do
+          it 'logs a warning and returns false when the field is not found in the schema' do
+            logger = instance_spy(Logger)
+            allow(ForestAdminAgent::Facades::Container).to receive(:logger).and_return(logger)
+
+            result = @decorated_book.published?('unknown_field')
+
+            expect(logger).to have_received(:log).with('Warn', "Field 'unknown_field' not found in schema of collection 'book'")
+            expect(result).to be(false)
+          end
+        end
       end
     end
   end