I have the same isue. Running latest Laravel 6.

I have tried this in my controller: $mValidatedData = $pRequest -> validate( $mRules, $mRuleMessages ); but that doesn't display any error messages in the form when directed back to the form. Although validation fails, and the $errors is being populated, when it gets to generating the view the _$errors _is empty.

Well, It looks like you are not doing anything with the method after validation. That block of code doesnt give too much information, but I can tell you 3 things.

1- You need to redirect to the view after the $model->save(); method.

2- You need to add a div on the form to display the errors.

3- In your model you need to add the 'fillable' fields.

Here's an example.

Add the model at the top of the controller:

    use App\Model;

Method to store :

    public function store(Request $request)
    {
        $request->validate([
            'category_id'=>'required',
            'name'=>'required',
            'description'=>'required',
            'image'=>'required',
            'status'=>'required',
            'created_by'=>'required',
            ]);
        $model= new Model();
        $model->category_id = $request->category_id;
        $model->name        =   $request->name;
        $model->description =   $request->description;
        $model->image       =   $request->image;
        $model->status      =   $request->status;
        $model->created_by  =   $request->created_by;
        $model->save();
        return redirect('path/to/redirect/after/save')->with('success', 'Model added successfully);
    }

or you can use:

    $model = new Model();
    $model->fill($request->all());
    $model->save();

Also if you want the 'created_by' field filled automatically with the user id you need to remove the "required" on the top and add this:

    $model->created_by = Auth::id();

before the "save()" method, and of course include:

    use Auth;

In top of your controller.

In your model you need to have this:

    protected $fillable = [
        'category_id',
        'name',
        'description',
        'image',
        'status',
        'created_by',
    ];

And finally in your view for every input you need to add this after the element:

    @if ($errors->has('name'))
        <span class="invalid-feedback" role="alert">
            <strong>{{ $errors->first('name') }}</strong>
        </span>
    @endif

or you could add this after the "form" tag:

    @if ($errors->any())
        <div class="alert alert-secondary" role="alert">
            <div class="alert-icon">
                <i class="flaticon-warning "></i>
            </div>
            <div class="alert-text">
                <ul>
                    @foreach ($errors->all() as $error)
                    <li>{{ $error }}</li>
                    @endforeach
                </ul>
            </div>
        </div><br />
    @endif

TIP: if you want the user to keep the information they had in the form, the attribute value of the input should be like this:

    <input type="text" class="form-control" name="name" value="{{ old('name') }}">

I hope this helps. Regards. Daniel