26 lines
827 B
Markdown
26 lines
827 B
Markdown
<a name="models.helpers.related_names_validation"></a>
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# models.helpers.related\_names\_validation
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<a name="models.helpers.related_names_validation.validate_related_names_in_relations"></a>
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#### validate\_related\_names\_in\_relations
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```python
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validate_related_names_in_relations(model_fields: Dict, new_model: Type["Model"]) -> None
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```
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Performs a validation of relation_names in relation fields.
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If multiple fields are leading to the same related model
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only one can have empty related_name param
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(populated by default as model.name.lower()+'s').
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Also related_names have to be unique for given related model.
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**Raises**:
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- `ModelDefinitionError`: if validation of related_names fail
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**Arguments**:
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- `model_fields` (`Dict[str, ormar.Field]`): dictionary of declared ormar model fields
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- `new_model` (`Model class`):
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