# \[GSoC 2021\] Adapt Schema Editors to operate from model states instead of fake rendered models **URL:** \ **Category:** Google Season of Code\ **Created:** [May 22, 2021, 8:11am UTC](https://forum.djangoproject.com/t/gsoc-2021-adapt-schema-editors-to-operate-from-model-states-instead-of-fake-rendered-models/8012 "2021-05-22T08:11:55Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![manav014](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.djangoproject.com/manav014/32/2339_2.png) [@manav014](https://forum.djangoproject.com/u/manav014)\ **Post date:** [May 24, 2021, 11:29pm UTC](https://forum.djangoproject.com/t/gsoc-2021-adapt-schema-editors-to-operate-from-model-states-instead-of-fake-rendered-models/8012/3 "2021-05-24T23:29:55Z")
While writing the code for the central registry in ProjectState. I came across a problem which is mentioned below. I am trying to figure out the solution for the same. I would be glad if anyone may help me out with this. # Problem To initialize the central registry in `django.db.migrations.state.ProjectState.add_model` I need the following parameters - from\_app\_label - from model\_name - from field - to model\_name - to app\_label - to\_field Out of all these required values I figured out how to get the first 5 values as follows: - from\_app\_label - `model_State.app_label` - from model\_name - `model_state.name_lower` - from field - `model_state.fields.items()` - to model\_name - `model_state.fields.items().field.remote_field.model` - to app\_label - `model_state.fields.items().field.remote_field.model.split(".")` But I am unable to figure out how can I get to\_field in case the to\_field is not explicitly defined by the developer. Suggestions and feedback would be highly appreciated. Regard, Manav --- _[View the full topic](https://forum.djangoproject.com/t/gsoc-2021-adapt-schema-editors-to-operate-from-model-states-instead-of-fake-rendered-models/8012)._