PushAll example

PushAll.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\Relation;
use Illuminate\Support\Collection;

trait PushAll {

    public function pushAll()
    {
        // Convert attributes to relations
        foreach ($this->attributes as $key => $value) {
            if (method_exists($this, $key) && $this->$key() instanceof Relation) {
                $this->setRelation($key, $value);
                unset($this->attributes[$key]);
            }
        }

        // Split the relations in BelongsTo and other
        $belongsToRelations = [];
        $otherRelations = [];
        foreach ($this->relations as $name => $model) {
            if ($this->$name() instanceof BelongsTo) {
                $belongsToRelations[$name] = $model;
            } else {
                $otherRelations[$name] = $model;
            }
        }

        /**
         * Check the inverse relations first, to set the correct key
         */
        foreach ($belongsToRelations as $name => $model) {
            /** @var BelongsTo $rel */
            $relation = $this->$name();

            $model = $this->convertDataToModel($relation, $model);

            if (! $this->pushAllModel($model)) {
                return false;
            }

            $relation->associate($model);
        }

        if (! $this->save()) {
            return false;
        }

        // To sync all of the relationships to the database, we will simply spin through
        // the relationships and save each model via this "push" method, which allows
        // us to recurse into all of these nested relations for the model instance.
        foreach ($otherRelations as $name => $models) {
            $models = $models instanceof Collection ? $models->all() : [$models];

            foreach (array_filter($models) as $model) {

                /** @var Relation $rel */
                $relation = $this->$name();

                $model = $this->convertDataToModel($relation, $model);

                // Save related model
                $relation->save($model);

                if (! $this->pushAllModel($model)) {
                    return false;
                }
            }
        }

        return true;
    }

    protected function pushAllModel($model)
    {
        $pushMethod = method_exists($model, 'pushAll') ? 'pushAll' : 'push';

        return $model->$pushMethod();
    }

    protected function convertDataToModel(Relation $relation, $data)
    {
        if ($data instanceof Model) {
            return $data;
        }

        return $relation->getRelated()->fill($data);
    }
}

web.php

<?php

Route::get('push', function(){


    $user = new User;
    $user->name = 'Barry';
    $user->email = str_random();
    $user->password = str_random();

    $post = new Post;
    $post->title = 'Test 1';
    $post->body = 'Lorem ipsum';

    $user->posts[] = $post;
    $user->posts[] = [
        'title'  => 'Test 2',
        'body' => 'from array',
    ];

    $user->pushAll();

    $user = $user->fresh('posts');
    $user->posts->first()->title = 'Test 1a';
    $user->posts[] = [
        'title' => 'test 3',
        'body' => 'lala',
    ];
    $user->pushAll();

    dump($user->fresh('posts'));

    return 'ok';
});

Route::get('push2', function(){

    $post = new Post;
    $post->title = 'Test A';
    $post->body = 'Lorem ipsum';
    $post->user = [
        'name' => 'Barry',
        'email' => str_random(),
        'password'  => str_random(),
    ];
/*
    $user = new User;
    $user->name = 'Barry';
    $user->email = str_random();
    $user->password = str_random();

    $post->user = $user;*/

    $post->pushAll();

    dump($post->fresh('user'));

    return 'ok';
});