Laravel - Update dynamic fields in relationship table - php

Question

I have two tables Cars and Features, where Cars and Features have one to many relations.
Cars table has ID, Name columns. Features tables has ID, CarID, Name, Feat Image.
When I update the details, Cars table updated Features table is not updated.
Cars.php
public function features() {
return $this->hasMany(Features::class, 'cars_id');
}
Features.php
public function feat()
{
return $this->belongsTo(Cars::class, 'cars_id');
}
Controller.php
Update Method
public function update(Request $request, $id)
{
$requestData = $request->all();
$cars = Cars::findOrFail($id);
$features = Features::with(['feat'])->where('cars_id', $cars->id)->get();
if($cars->update($requestData))
{
if ($request->hasFile('feat_img'))
{
$file = $request->file('feat_img');
$rules = array('file' => 'required|mimes:png,gif,jpeg');
$validator = \Illuminate\Support\Facades\Validator::make(array('file'=> $file), $rules);
if($validator->passes())
{
$name = $request->name;
for ($i=0; $i < count(request('name')); ++$i)
{
$features->name = request('name')[$i];
$feat_img_name = uniqid() . '.' . $images[$i]->getClientOriginalExtension();
$images[$i]->move(public_path('/images/'), $feat_img_name);
$features->feat_img = '/images/'.$feat_img_name;
}
}
}
$cars->features()->update($features);
session()->flash('message', 'Product updated successfully.');
return redirect('/');
}
Store Method
public function store(Request $request, Cars $cars)
{
$cars= new Cars;
$cars->name= request('name');
$cars->image= $image;
if($cars->save())
{
$features= [];
$images = $request->file('feat_img');
$name = $request->name;
for ($i=0; $i < count(request('name')); ++$i)
{
$features= new Features;
$features->name = request('name')[$i];
$feat_img_name = uniqid() . '.' . $images[$i]->getClientOriginalExtension();
$images[$i]->move(public_path('/images/'), $feat_img_name);
$features->feat_img = '/images/'.$feat_img_name;
$cars->features()->save($features);
}
session()->flash('message','Product successfully added.');
return redirect ('/');
}
}

Answer 1

Use update like this :
$features=Features::findOrFail(id);
$features->field=$value;
$features->save();
Hope this works.