如何从Laravel中的两个表联接并获取数据？

Question

I'm working on a laravel project. I'v got two tables : company, Prouct
Every company has many products . I want to display the company name and logo along with the product details .

class Company extends Model
{

// 
    public function products()
    {
        return $this->hasMany('System\Product','company_id');
    }
}

...........
    class Product extends Model
{
   public function company()
    {
      return $this->belongsTo('Systems\Company','id'); 
        }
}

..........

company_table
id   company_name  company_logo
 1       MDE        image.png
procut_table
id  product_name  price  company_id
1     7-up         200      1

How I want to dispaly it?

I want to display it like this :

Product_name
price
company_name
company_logo

How can I write a query in laravel to give me this result? ...............

Answer 1

You need to use join , You can use the following query

$result = DB::table('Product')->join('Company', 'Product.company_id', '=', 'Company.id')->get();

To get your result

Answer 2

You can call for your products and load it's relation company .

$products = Product::with('company')->get();

Then you can access the company of each product

@foreach($products as $product)
    {{$product->name}}<br/>
    {{$product->price}}<br/>
    {{$product->company->name}}<br/>
    {{$product->company->logo}}<br/>
@endforeach

Answer 3

    class Company extends Model
    {

        public function products()
        {
            return $this->hasMany('System\Product','company_id','id');
        }
    }


    class Product extends Model
    {
       public function company()
        {
          return $this->belongsTo('Systems\Company','company_id','id'); 
            }
    }

In your controller , you can get like this.

$products = Product::with('company')->get();

    foreach ($products as $product) {
       echo $product->company->name; //MDE
       echo $product->company->company_logo; //image.png
       echo $product->price; //200

    }