The twinnable_has_one relation is the equivalent of the FuelPHP native has_one relation (moreover, it extends has_one).
The difference is that the link is not made on the primary key but on the context common ID.
If you use the twinnable_has_one relation, the model must implement Twinnable behaviour.
Changed in version 4.2: Before the 4.2 (Dubrovka) version, the linked model also need to implement Twinnable behaviour.
| key_from: | Calculated from the behaviour Twinnable. |
|---|---|
| model_to: | The full class name of the target model. Calculated from alias. |
| key_to: | The key used for the relation in the linked model if model_to is twinnable. |
| column_context_from: | |
Calculated from the behaviour Twinnable if model_to is twinnable. |
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| column_context_to: | |
Calculated from the behaviour Twinnable if model_to is twinnable. |
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| column_context_is_main_to: | |
Calculated from the behaviour Twinnable if model_to is twinnable. |
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