Merge branch '171-dataset-creation-with-graphql-ignores-read_only-argument' into 'master'

Add custom CheckboxInput widget for read_only

Closes #171

See merge request !95

portal/graphql_schema.py

@@ -196,12 +196,18 @@ class DataSetMutation(DjangoModelFormMutation):
     class Meta:
         form_class = DataSetForm
         return_field_name = 'dataset'
-
+    
+    @classmethod
+    def get_form_kwargs(cls, root, info, **input) -> dict:
+        kwargs = super().get_form_kwargs(root, info, **input)
+        if 'read_only' not in kwargs['data'] and 'instance' not in kwargs.keys():
+            kwargs['data']['read_only'] = True
+        return kwargs
+    
     @classmethod
     def perform_mutate(cls, form, info):
         object = form.save(commit=False)
         if not object.pk:
-            object.read_only = True
             object.created_by = info.context.user.profile
 
         object.last_update_by = info.context.user.profile