Get the ID of the first parent-CodePudding

I have three models that are related: Article, ArticleBlock, ArticleBlockImage

ArticleBlock is related with Article and ArticleBlockImage is related with ArticleBlock

Here are the relations

Article

public function article_blocks()
{
    return $this->hasMany('App\Models\ArticleBlock');
}

ArticleBlock

public function article()
{
    return $this->belongsTo('App\Models\Article');
}

public function article_block_images()
{
    return $this->hasMany('App\Models\ArticleBlockImage');
}

ArticleBlockImage

public function article_block()
{
    return $this->belongsTo('App\Models\ArticleBlock');
}

Further in the ArticleBlockImage model I have one function with which I need to get the ID of the current Article in the form of type $article->id

I am trying to do something like this, but I get the error

$article = article_block_images()->article_block()->article()->get();

"message": "Call to undefined function App\Models\article_block_images()",

CodePudding user response：

$article = articleBlockImages()->article_block()->article()->get();

when you load your relation this way you load the relation type class, not the database records, relation classes like (HasMany, HasOne ...)

to get article_id you can a function like this:

public function article_id()
    {
        return $this->article_block->article_id; // without brackets
    }

CodePudding user response：

You wrote that ArticleBlock is related to Article and to ArticleBlockImage. Then you have the related Article ID inside the ArticleBlock.

That means if you have the ArticleBlockImage $articleBlockImage then you can write:

$articleId = $articleBlockImage->article_block()->article_id;