Want to get relational table value in specified way in mysql - php

Question

I have 2 table like below.
Table A
id | val_a
1 | a1
2 | a2
3 | a3
Table B
id | id_a| val_b
1 | 2 | b1
2 | 2 | b2
3 | 3 | b3
What is the best way to get data like below :
[
[0] => stdClass Object
(
[id_a] => 1
[val_a] => 'a1'
)
[1] => stdClass Object
(
[id_a] => 2
[val_a] => 'a2'
[table_b] => Array
(
[0] => stdClass Object
(
[id_b] => 1
[val_b] => 'b1'
)
[1] => stdClass Object
(
[id_b] => 2
[val_b] => 'b2'
)
)
)
[2] => stdClass Object
(
[id_a] => 3
[val_a] => 'a3'
[table_b] => Array
(
[0] => stdClass Object
(
[id_b] => 3
[val_b] => 'b3'
)
)
)
]
I am using Laravel 5.2. And achive this by foreach loop. But I don't know what is the best way to do. Can I do this by laravel or Mysql ? Thanks Ahead.

Answer 1

You can achieve this using Eloquent Model and hasMany relationship
for the first table Table A
class table_a extends Model
{ //define your primary key
protected $primaryKey = 'id_a'; /*you can skip this if id is your primary key*/
public function get_b_values(){
return $this->hasMany(table_b::class, 'id_b', 'id_a');
//foreign_key then local_key
}
}
for the second table Table B
class table_b extends Model
{
protected $primaryKey = 'id_b';
/*you can skip this if id is your primary key*/
}
Then you can access the element (exp id=2) you want like this:
table_a::find(2)->get_b_values;
UPDATE
Try this in your controller:
$results=table_a::with('get_b_values')->get();

Answer 2

Yes you can do it using laravel, take data from table_a and store row in a variable and run another query in table_b where id_a = id (table_a's id column) and store them into your defined variable.