如何自动将父ID插入另一个表？

Question

I have a two table named applicants and jobs. I am using Laravel 5.2.

jobs table:

id | job_tittle | email         |...
-----------------------------  
1  | Engineer   | [e-mail] |...

applicants table:

id | job_id | name |...
-----------------------------  
1  |   1    | john |...

Now i want when anyone submit the application form against a job then job_id is auto inserted in the applicants table.

I have tried so far ApplicantController:

$jobAll = Job::all();
$jobId = Job::find($jobAll->first()->id);
//$jobId = $jobAll->first()->id;

DB::table('applicants')->insert([
'job_id' => $jobId,
]);

But its not working.Could anyone tell me how can i do that? Thanks in advance.

Answer 1

Try this :

$job = Job::find($id);
$jodId = $job->id;

DB::table('applicants')->insert([
'job_id' => $jobId,
]);