Added admin input routes, index and create page (working).

app/Http/Controllers/InputController.php

+<?php
+
+namespace App\Http\Controllers;
+
+use App\Input;
+
+use Illuminate\Http\Request;
+
+use App\Http\Requests\StoreInput;
+
+class InputController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        return view('inputs.index', ["inputs" => Input::without('data')->get()]);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        return view('inputs.create');
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(StoreInput $request) {
+        Input::create($request->all());
+        return redirect()->route('inputs.index');
+    }
+
+    /**
+     * Show form to import from CSV.
+     */
+    public function show_csv_import() {
+        // return view('inputs.csv_import');
+    }
+
+    /**
+     * Do the csv import.
+     */
+    public function csv_import() {
+
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Input $input) {
+        $json = json_decode($input->data);
+
+        if ($json)
+            return response()->json($json);
+        else
+            return $input->data;
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * 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)
+    {
+        //
+    }
+}

app/Http/Requests/StoreInput.php

+<?php
+
+namespace App\Http\Requests;
+
+use App\Input;
+
+use Illuminate\Validation\Rule;
+use Illuminate\Foundation\Http\FormRequest;
+
+use Str;
+
+class StoreInput extends FormRequest {
+    private $messages = [];
+
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        return true;
+    }
+
+    protected function prepareForValidation() : void {
+        if ($this->id === null) {
+            $this->merge([
+                // add an id, if none was provided
+                'id' => Str::random($this->id_length),
+            ]);
+
+            $this->messages['id.unique'] = 'Generated uid has already been taken. '
+                                  . 'Try again or increase uid length.';
+        }
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules() {
+        return [
+            "id" => 'required|unique:inputs',
+            "id_length" => 'required|integer|gt:0',
+            "max_uses" => 'integer|gte:0',
+            "increments" => Rule::in(Input::INCREMENT_MODES),
+            "data" => $this->get('format') === 'json' ? 'required|JSON' : 'required'
+        ];
+    }
+
+    public function messages() {
+        return array_merge($this->messages, [
+            "data.j_s_o_n" => "Data payload must be valid JSON"
+        ]);
+    }
+}

app/Input.php

+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Input extends Model {
+    // This tells Eloquent, that we're using uids instead of incrementing integers.
+    // https://laravel.com/docs/6.x/eloquent#eloquent-model-conventions
+    public $incrementing = false;
+
+    // Choices for 'increments'
+    const INCREMENT_MODES = [
+        'auto',
+        'manual',
+        'never',
+    ];
+
+    protected $fillable = [
+        'id',
+        'increments',
+        'uses',
+        'max_uses',
+        'listed',
+        'data',
+    ];
+}

resources/views/inputs/create.blade.php

+@extends('layouts.app')
+@section('content')
+
+<h1>Upload experiment data as CSV</h1>
+
+{{ Form::open(['route' => 'inputs.store']) }}
+
+<div class="form-group">
+    {{ Form::label('id', 'Unique id', ['class' => 'control-label' ]) }}
+    {{ Form::text('id', old('id'), ['class' => 'form-control']) }}
+    <small id="id-help" class="form-text text-muted">
+        Unique id for this input data.
+        (Leaving this empty will generate one for you.)
+    </small>
+    @error('id')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('id_length', 'Unique id length', ['class' => 'control-label' ]) }}
+    {{ Form::number('id_length', old('id_length', 8), ['min' => 1, 'class' => 'form-control']) }}
+    <small id="id_length-help" class="form-text text-muted">
+        The length of the UID, if generated.
+    </small>
+    @error('id_length')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('max_uses', 'Maximum use count', ['class' => 'control-label' ]) }}
+    {{ Form::number('max_uses', old('max_uses', 1), ['min' => 0, 'class' => 'form-control']) }}
+    <small id="max_uses-help" class="form-text text-muted">
+        How often this input data can be used in total.
+        (Leave empty, for inifinite uses.)
+    </small>
+    @error('max_uses')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('listed', 'Should this entry be listed?', ['class' => 'control-label' ]) }}
+    {{ Form::select('listed', [true => 'listed', false => 'unlisted'], old('listed'), ['min' => 0, 'class' => 'form-control']) }}
+    <small id="max_uses-help" class="form-text text-muted">
+        Decide, whether this entry should be listed.
+        <ul>
+          <li>A 'listed' entry can be requested by the client without knowledge of the unique id by simply asking the server for "some input".</li>
+          <li>An 'unlisted' entry can only be requested by knowing the unique id.</li>
+        </ul>
+        Note: This doesn't change, whether this entry is visible in the admin interface.
+    </small>
+    @error('max_uses')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('increments', 'Increment mode for the use count.', ['class' => 'control-label' ]) }}
+    {{ Form::select('increments', ['auto' => 'auto', 'manual' => 'manual', 'never' => 'never'], old('increments', 'auto'), ['class' => 'form-control']) }}
+    <small id="increments-help" class="form-text text-muted">
+        When to increment the use count:
+        <ul>
+          <li>auto - whenever the input data is requested</li>
+          <li>manual - when the experiment client requests the increment</li>
+          <li>never - never increment the use count</li>
+        </ul>
+        If you're unsure about this, you'll likely want 'auto'.
+    </small>
+    @error('increments')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('data', 'Input data payload', ['class' => 'control-label' ]) }}
+    {{ Form::textarea('data', old('data'), [
+        'placeholder' => 'Enter your data here',
+        'class' => 'form-control' ,
+        'cols' => 20,
+        'rows' =>10,
+        'required'
+    ]) }}
+    @error('data')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="form-group">
+    {{ Form::label('format', 'Input data format', ['class' => 'control-label' ]) }}
+    {{ Form::select('format', ['json' => 'json', 'text' => 'text'], old('format'), ['class' => 'form-control']) }}
+    <small id="format-help" class="form-text text-muted">
+        This will run a quick check, whether the provided data is valid,
+        but otherwise have no effect on the saved input data.
+    </small>
+    @error('format')
+        <div class="text-danger">{{ $message }}</div>
+    @enderror
+</div>
+
+<div class="row">
+    <div class="m-1">
+        {{ Form::submit('Create', ['class' => 'btn btn-primary']) }}
+        {{ Form::close() }}
+    </div>
+    <div class="m-1">
+        <a href="{{ route('inputs.index') }}" class="btn btn-secondary">Cancel</a>
+    </div>
+</div>
+@endsection

resources/views/inputs/index.blade.php

+@extends('layouts.app')
+@section('content')
+
+<table class="table">
+    <thead>
+        <tr>
+            <th scope="col">uid</th>
+            <th scope="col">uploaded on</th>
+            <th scope="col">uses</th>
+            <th scope="col">max uses</th>
+            <th scope="col">listed</th>
+            <th scope="col">use count increments</th>
+            <th scope="col"><!-- actions column --></th>
+        </tr>
+    </thead>
+    <tbody>
+        @foreach ($inputs as $input)
+        <tr>
+            <td>{{ $input->id }}</td>
+            <td>{{ $input->created_at }}</td>
+            <td>{{ $input->uses }}</td>
+            <td>{{ $input->max_uses }}</td>
+            <td>{{ $input->listed ? "yes" : "no" }}</td>
+            <td>{{ $input->increments }}</td>
+            <td>
+               <a href="{{ route('inputs.show', $input) }}"
+                  title="Show the input data payload">
+                  <i class="fa fa-eye"></i>
+              </a>
+
+                <a href="_blank" class="confirm-delete" title="Remove these results"
+                   data-form-id="remove-form-{{$input->id}}"
+                   data-message="Do you really want to delete this result?">
+                    <i class="fa fa-remove"></i>
+                </a>
+
+                {{ Form::open([
+                    'url' => route('inputs.destroy', $input),
+                    'method' => 'delete',
+                    'style' => 'display: none',
+                    'id' => "remove-form-{$input->id}"
+                ]) }}
+                {{ Form::submit('send') }}
+                {{ Form::close() }}
+            </td>
+        </tr>
+        @endforeach
+    </tbody>
+</table>
+
+<a href="{{ route('inputs.create')}}">Create a new entry</a>
+
+@endsection

resources/views/layouts/app.blade.php

@@ -36,7 +36,7 @@
                     <ul class="navbar-nav mr-auto">
                         @auth
                         <li class="nav-item">
-                            <a class="nav-link" href="{{ route('experiments.index') }}">Experiment data</a>
+                            <a class="nav-link" href="{{ route('inputs.index') }}">Manage input data</a>
                         </li>
 
                         <li class="nav-item">

routes/web.php

@@ -22,6 +22,13 @@ Route::middleware(['web', 'auth'])->group(function() {
         ->name('experiments.reset');
     Route::resource('/admin/experiments', 'ExperimentController');
 
+    Route::get('/admin/inputs/csv-import', 'InputController@show_csv_import')
+        ->name('inputs.show_csv_import');
+    Route::post('/admin/inputs/csv-import', 'InputController@csv_import')
+        ->name('inputs.csv_import');
+    Route::resource('/admin/inputs', 'InputController');
+
+
     Route::get('/admin/results/show-json/{result}', 'ResultController@showJson')
         ->name('results.show-json');
     Route::get('/admin/results/show-all-csv', 'ResultController@showAllCSV')