How to autofill form with id from the previous Form - laravel

Question

I'm trying to autofill form with id of techinician from the previous form after clicking add button.
I have a list of technicians and each technician has multiple "tarification tache"associated with him then
when i press the add button i am directed to the form to add "tarification tache" in this form i have to choose the technician. So I want the form to be autofilled with the ID of the technician in question and this from the previous form.
#extends('Layouts/app')
#extends('Layouts.master')
#section('content')
#if(count($errors))
<div class="alert alert-danger" role="alert">
<ul>
#foreach($errors ->all() as $message)
<li>{{$message}}</li>
#endforeach
</ul>
</div>
#endif
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script type="text/javascript">
var getMetiersByTechnicienUrl = "{{url('/metiersbytechnicien')}}";
var getTachesByMetierUrl = "{{url('/tachesbymetier')}}";
//console.log(getMetiersByTechnicienUrl,getTachesByMetierUrl,
getTarificationsByTacheUrl);
function getMetiersByTechnicien(val) {
if(val.length>0) {
var technicien_id = val;
$.get(getMetiersByTechnicienUrl+'/'+technicien_id,function(res) {
var html = '<option value="">-Select-</option>' ;
$.each(res.metiers,function(index,item) {
html+='<option
value="'+item.id+'">'+item.libelle_metier+'</option>';
});
$('#metiers').html(html);
});
}
}
function getTachesByMetier(val) {
if(val.length>0) {
var metier_id = val;
$.get(getTachesByMetierUrl+'/'+metier_id,function(res) {
var html = '<option value="">-Select-</option>' ;
$.each(res.taches,function(index,item) {
html+='<option
value="'+item.id+'">'+item.libelle_tache+'</option>';
});
$('#taches').html(html);
});
}
}
</script>
<div class="container">
<div class="row"></div>
<div class="col-md-12">
Z
<div class="col-md-10">
<h1>Tarification tache</h1>
<form action=" {{url ('tarification') }}" method="post">
{{csrf_field()}}
<div class="form-group">
<label for="technicien">Technicien</label>
<select onchange="getMetiersByTechnicien(this.value)"
name="technicien_id"
id="technicien" class="form-control">
<option value="">-Select-</option>
#foreach($technicien as $t)
<option value="{{$t->id }}">
{{$t->user->nom}}
</option>
#endforeach
</select>
</div>
<div class="form-group">
<div class="col-md-12">
<div class="col-md-4">
<label>Metier: </label>
<select onchange="getTachesByMetier(this.value)" style="width:
200px"
class="productm form-control" id="metiers">
<option value="">-Select-</option>
</select>
</div>
<div class="col-md-4">
<label>tache: </label>
<select style="width: 200px" class="productname form-
control"
name="tache_id" id="taches">
<option value="">-Select-</option>
</select>
</div>
<div class="col-md-4">
<label>tarification: </label>
<input style="width: 200px" class="productname form-
control" type="text"
name ="Tarif" class="form-control" value="{{old('tarif')}}">
</div>
</div>
</div>
<div class="form-group">
<input type="submit" value = "enregistrer" class="form-control
btn btn-primary">
</div>
</div>
</div>
</div>
#endsection
tarificationcontroller:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\tarificationtache;
use App\technicien;
use App\tache;
use App\metier;
class TarificationController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$Listtache=tache::orderBy('libelle_tache')->get();
$Listtarification=tarificationtache::all();
return view('tarification.index',['tarification'=>$Listtarification]);
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
$technicien = technicien::orderBy('id','desc')->get();
$taches = Tache::orderBy('libelle_tache', 'asc')->get();
$metiers = Metier::orderBy('libelle_metier', 'asc')->get();
return view('tarification.create')->with('taches', $taches)-
>with('technicien', $technicien)-
>with('metiers', $metiers);
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
*#return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$tarification = new tarificationtache();
$tarification ->tache_id = $request->input('tache_id');
$tarification ->Tarif =$request->input('Tarif');
$tarification->save();
$tarification->techniciens()->attach($request->technicien_id);
return redirect('technicien'); }
/**
* Display the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function show($id)
{
//
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
$tache=Tache::find($id);
return view('tache.edit',['libelle_tache'=>$tache],['Tarif'=>$tache],
['metier_id'=>$tache]);
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param int $id
* #return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
//
}
/**
* Remove the specified resource from storage.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
$tache =Tache::find($id);
$tache->delete();
return redirect('tache');
}
public function getTarificationsByTache($tache_id)
{
$t =tache::find($tache_id);
return response()->json(['tarifications' => $t->tarificationtache]);
}