Insert via Dynamic Property

Relationships can be set directly via their properties in the same way you would access them. Setting a relationship using this approach will overwrite any relationship that existed previously. The model should be saved afterwards like you would with any attribute.

Similar to deferred binding, relationships defined on non-existent models are deferred in memory until they are saved. In this example the post does not exist yet, so the post_id attribute cannot be set on the comment via $post->comments. Therefore the association is deferred until the post is created by calling the save method.

In this example the post does not exist yet, so the post_id attribute cannot be set on the comment via $post->comments. Therefore the association is deferred until the post is created by calling the save method.