Laravel5: Eloquent and JOIN - mysql

Question

Items Table
| id | item_id | item_title |
|-------|---------|------------|
| 1 | 1002 | A |
| 2 | 1003 | B |
| 3 | 1004 | C |
Sells Table
| id | item_id |
|----|-----------|
| 1 | 1002 1003 |
| 2 | 1003 1004 |
| 3 | 1004 1002 |
I want result : Sells Table 1. item title is A B
I want to combine the sells table with the item table and then match the item_id of the sells table to the item_title of the item table.

Answer 1

The table definitions look incorrect, you should have a pivot table linking items with sells, so a sell_item table:
item_id | sell_id
-----------------
1 | 1
1 | 3
2 | 1
2 | 2
3 | 2
3 | 3
Then using eloquent, you'd create models to represent your tables and define the relationships using BelongsToMany:
class Item extends Model {
public function sells() {
return $this->belongsToMany(Sell::class);
}
}
class Sell extends Model {
public function items() {
return $this->belongsToMany(Item::class);
}
}
Each instance of either model will then have access to it's related models via $item->sells and $sell->items.
The query builder can perform a join if not going the Eloquent route:
DB::table('sells')->join('items', 'sells.item_id', '=', 'items.item_id')
->select('sells.*', 'items.title')
->get();

Answer 2

The table definitions look incorrect, If you corrected already then your model replationship should be like
class Item extends Model {
public function sells() {
return $this->belongsToMany(Sell::class);
}
}
class Sell extends Model {
public function items() {
return $this->belongsToMany(Item::class);
}
}
Each instance of either model will then have access to it's related models via $item->sells and $sell->items.
The query builder can perform a join if not going the Eloquent route:
DB::table('sells')->join('items', 'sells.item_id', '=', 'items.item_id')
->select('sells.*', 'items.title')
->get();
Or if your model name is Sell then
$response=Sell::with('items')->get();