Add attributes to laravel post - php

Question

I'm working on laravel e-commerce project where I need to add Attributes to my posts (image below as example)
My question is how to achieve that? should i create new tables or can I add manually from post.create like any other e-commerce cms?
Personally I prefer to be able to add fields in post.create like I
add + button and each time I click on it 2 input fields add and I
can put key and value in it. (if you can help me with that)
Thanks.
Update:
With suggest of #anas-red I've created this structure now:
attributes table.
Schema::create('attributes', function (Blueprint $table) {
$table->increments('id');
$table->string('title')->unique();
$table->timestamps();
});
and product_attributes table
Schema::create('product_attributes', function (Blueprint $table) {
$table->increments('id');
$table->integer('product_id')->unsigned();
$table->foreign('product_id')->references('id')->on('products');
$table->integer('attribute_id')->unsigned();
$table->foreign('attribute_id')->references('id')->on('attributes');
$table->string('attribute_value')->nullable();
$table->timestamps();
});
now i have this store method on my controller when i save my posts:
public function store(Request $request)
{
//Validating title and body field
$this->validate($request, array(
'title'=>'required|max:225',
'slug' =>'required|max:255',
'user_id' =>'required|numeric',
'image_one' =>'nullable|image',
'image_two' =>'nullable|image',
'image_three' =>'nullable|image',
'image_four' =>'nullable|image',
'image_one' =>'nullable|image',
'short_description' => 'nullable|max:1000',
'description' => 'nullable|max:100000',
'subcategory_id' => 'required|numeric',
'discount' => 'nullable|numeric',
'discount_date' => 'nullable|date',
'price' => 'required|numeric',
));
$product = new Product;
$product->title = $request->input('title');
$product->slug = $request->input('slug');
$product->user_id = $request->input('user_id');
$product->description = $request->input('description');
$product->short_description = $request->input('short_description');
$product->subcategory_id = $request->input('subcategory_id');
$product->discount = $request->input('discount');
$product->discount_date = $request->input('discount_date');
$product->price = $request->input('price');
if ($request->hasFile('image')) {
$image = $request->file('image');
$filename = 'product' . '-' . time() . '.' . $image->getClientOriginalExtension();
$location = public_path('images/');
$request->file('image')->move($location, $filename);
$product->image = $filename;
}
$product->save();
$product->attributes()->sync($request->attributes, false);
//Display a successful message upon save
Session::flash('flash_message', 'Product, '. $product->title.' created');
return redirect()->route('admin.products.index');
}
The process i want to do is this:
Store my attributes
Select my attributes while creating new post
Give value to selected attribute
save post_id arribute_id and atteribute_value in product_attributes table.
here is the error i get:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'attributes_id'
in 'field list' (SQL: select attributes_id from product_attributes
where product_id = 29)
UPDATE:
Product model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use jpmurray\LaravelCountdown\Traits\CalculateTimeDiff;
class Product extends Model
{
use CalculateTimeDiff;
protected $table = 'products';
protected $fillable = [
'title', 'slug', 'image_one', 'image_two', 'image_three', 'image_four', 'short_description', 'description', 'price', 'discount', 'discount_date',
];
public function category(){
return $this->belongsTo(Category::class);
}
public function subcategory(){
return $this->belongsTo(Subcategory::class);
}
public function attributes()
{
return $this->belongsToMany(Attribute::class, 'product_attributes', 'product_id', 'attribute_id');
}
public function order(){
return $this->hasMany(Order::class);
}
public function discounts(){
return $this->hasMany(Discount::class, 'product_id', 'id');
}
}
Attribute model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Attribute extends Model
{
protected $fillable = [
'title',
];
public function products(){
return $this->belongsToMany(Product::class);
}
}

Answer 1

I think you can add new table lets say "post_attributes" with the following columns:
id - post_id - key - value
in the PostAttribute model add this:
public function post
{
return $this->belongsTo(Post::class);
}
in the Post model add the following:
public function attributes
{
return $this->hasMany(PostAttributes::class, 'post_attributes');
}
Now the app is flexible enough to handle multiple attributes to one post or a single attribute to another.
Other approach is to implement JSON in your database. Hope that helped you.

Answer 2

update Product model
public function attributes()
{
return $this->belongsToMany(Attribute::class, 'product_attributes', 'product_id', 'attribute_id')->withPivot('attribute_value')->withTimestamps();
}
and update Attribute model to
public function products()
{
return $this->belongsToMany(Product::class, 'product_attributes', 'attribute_id', 'product_id')->withPivot('attribute_value')->withTimestamps();
}

Answer 3

If I see your Product and Attribute Models I will be in a better position to answer you properly.
But any way, I think your problem is with the product_attributes table.
This table is now acting as a pivot (intermediate) table and it is not following Laravel naming convention. The convention is to name it as follows: attribute_product.
Next, you have to add the following into both models i.e. Product and Attribute.
in Attribute Model add:
$this->belongsToMany(Product::class)->withPivot('value');
in Product Model add:
$this->belongsToMany(Attribute::class)->withPivot('value');
To add value to more_value column on pivot table. Use the following:
$product->attributes()->attach($attributeId, ['more_value' => $string]);
or use sync:
$product->attributes()->sync([$attributeId => ['more_value' => $string]]);

Answer 4

lol. the important part is repo code is:
<input type="hidden" id="appOrderItems" name="orderItems[]">
trace appOrderItems in my JS section and you will get it.
in simple words:
when the user adds attributes to a product (in my case, items to an order) then, the appOrderItems array will get the id of the attribute and any additional value that you need to add into the pivot table (other than the product_id and attribute_id. in your case the mores_value). After gathering these attributes into appOrderItems JS array I push its value to the hidden HTML field (name="orderItems[]"). in this case it will be sent to the controller for further process.