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notamedia/yii2-relation
=======================

Saving related data in Yii2

1.0.0(8y ago)95.2k4[2 issues](https://github.com/notamedia/yii2-relation/issues)MITPHPPHP >=5.6.0

Since Dec 30Pushed 8y ago4 watchersCompare

[ Source](https://github.com/notamedia/yii2-relation)[ Packagist](https://packagist.org/packages/notamedia/yii2-relation)[ RSS](/packages/notamedia-yii2-relation/feed)WikiDiscussions master Synced 3w ago

READMEChangelog (4)Dependencies (5)Versions (5)Used By (0)

Saving Related Data in Yii2
===========================

[](#saving-related-data-in-yii2)

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Behavior for support relational data management.

- Insert related models from POST array.
- Pre-processing for new models via callback function.
- Delete related models from database which not exist in POST array.
- Skip related models which already exist in database with same attributes.
- Rollback database changes, if relational model save/delete error occurred.
- Support one-to-one and one-to-many relations.

With pre-processing you can set additional logic before create related models. For example, to add additional columns data to the junction table in a many-to-many relationship.

This behavior uses getters for relational attribute in owner model, such getters must return `ActiveQuery` object. If you use string values in ON condition in `ActiveQuery` object, then this behavior will throw exception.

Installation
------------

[](#installation)

```
composer require notamedia/yii2-relation
```

Usages
------

[](#usages)

For make works this behavior you need:

- Add all relational properties to rules as safe attribute.
- Declare getter for relational attribute.
- Put attribute or attribute with callback to relations property of behavior.
- All used models need to have only one primary key column.

### One to One Relationships

[](#one-to-one-relationships)

```