# relations.utils
#### get\_relations\_sides\_and\_names
```python
get_relations_sides_and_names(to_field: ForeignKeyField, parent: "Model", child: "Model") -> Tuple["Model", "Model", str, str]
```
Determines the names of child and parent relations names, as well as
changes one of the sides of the relation into weakref.proxy to model.
**Arguments**:
- `to_field` (`ForeignKeyField`): field with relation definition
- `parent` (`Model`): parent model
- `child` (`Model`): child model
**Returns**:
`Tuple["Model", "Model", str, str]`: parent, child, child_name, to_name