How To Update Laravel hasMany Relationship Models? - php

Question

I've been trying to wrap my head on figuring out how to update my hasMany relationship model. I can easily create new relationships but when I try to update my relationship model it does not work? Does laravel push() method still work? Can anyone help please? For example I want to update my Taxonomy Table thats related to my Products table within my Controller. I have a code snippet below::
Product.php
class Product extends Model
{
protected $fillable = [
'product_category', 'product_subcategory', 'product_name',
'product_price', 'product_id', 'product_description', 'product_image'
];
protected $primaryKey = 'product_id';
public $incrementing = false;
public function addTaxonomiesToProduct()
{
return $this->hasOne('App\Taxonomies', 'product_id', 'product_id');
}
}
Taxonomies.php
class Taxonomies extends Model
{
protected $fillable = ['product_category', 'product_subcategory'];
protected $primaryKey = 'product_id'; // or null
public $incrementing = false;
public function product()
{
return $this->belongsTo(Product::class);
}
}
EditProductController.php
class EditProductController extends Controller
{
public function update(Request $request, Product $product)
{
$product_size = array();
foreach ($request->product_size as $key => $value)
{
array_push($product_size,$value);
}
$product->update([
'product_name' => $request->product_name,
'product_price' => $request->product_price,
'product_description' => $request->product_description,
'product_size' => serialize($product_size),
'product_image' => $product_image_path,
]);
/**
* Go the products table,
* Get the product based off its product_id,
* and then update this products taxonomy
**/
$taxonomies = Product::find($product->product_id);
$taxonomies->addTaxonomiesToProduct->product_subcategory = "Mens Shoes";
$taxonomies->push();
}
}
****Update Issued Solved****
By changing hasMany() to hasOne() within my Products table, my taxonomies table updated correctly.

Answer 1

I think you don't fully understand the way Laravel Eloquent relationships work. First off, you need to define the relationship in both models.. Your Taxonomy model has this, but your Product model should have:
public function taxonomies()
{
return $this->hasMany('App\Taxonomies', 'product_id', 'product_id');
}
Then to update a Product's taxonomies, you'd have something like...Uh, I'm not sure what you're trying to achieve here, especially with the way you chained the product_subcategory, so I can't rightly say, but do see the documentation