Adding user handling pages for admins.

app/Http/Controllers/Admin/UserController.php

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+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Models\User;
+use App\Http\Requests\Admin\UserRequest;
+use App\Http\Controllers\Controller;
+
+class UserController extends Controller
+{
+    public function index()
+    {
+        return view('admin.user.index');
+    }
+
+    public function create()
+    {
+        return view('admin.user.form');
+    }
+
+    public function edit(User $user)
+    {
+        return view('admin.user.form', [
+            'model' => $user
+        ]);
+    }
+
+    /**
+     * Delete user.
+     */
+    public function destroy(User $user)
+    {
+        $user->delete();
+
+        return redirect()->route('admin.users.index')
+            ->with(['success' => "<strong>{$user->username}</strong> was deleted!"]);
+    }
+}

app/Http/Livewire/AdminUserTable.php

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+<?php
+
+namespace App\Http\Livewire;
+
+use App\Models\User;
+
+use Livewire\Component;
+
+class AdminUserTable extends Component
+{
+    use Traits\WithPagination;
+
+    protected $queryString = [
+        'username' => ['except' => ''],
+        'role' => ['except' => '']
+    ];
+
+    /**
+     * Filter by username
+     */
+    public $username;
+
+    /**
+     * Filter by role
+     */
+    public $role;
+
+    public function render()
+    {
+        $query = User::query()->orderBy('username');
+
+        if (strlen($this->username) >= 3) {
+             $query->where('username', 'LIKE', '%' . $this->username . '%');
+        }
+
+        if (in_array($this->role, ['user','admin'])) {
+            $query->where('role', $this->role);
+        }
+
+        return view('livewire.admin-user-table', [
+            'users' => $query->paginate($this->perPage)
+        ]);
+    }
+}

app/Http/Livewire/Form/Admin/UserForm.php

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+<?php
+
+namespace App\Http\Livewire\Form\Admin;
+
+use App\Models\User;
+
+use Livewire\Component;
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Validation\Rule;
+use Illuminate\Support\Facades\Hash;
+
+class UserForm extends Component
+{
+    use AuthorizesRequests;
+
+    /**
+     * User object.
+     */
+    public User $user;
+
+    /**
+     * Password field
+     */
+    public $password;
+
+    /**
+     * Password confirmation field.
+     */
+    public $password_confirmation;
+
+    /**
+     * Initialize the component.
+     */
+    public function mount(User $user)
+    {
+        $this->user = $user;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'user.username'  => ['required', 'min:4', Rule::unique('users', 'username')->ignore($this->user) ],
+            'user.role'      => 'required|in:user,admin',
+            'password'       => ($this->user->exists ? 'nullable' : 'required') . '|min:8|confirmed',
+        ];
+    }
+
+    public function updated($property)
+    {
+        $this->validateOnly($property);
+    }
+
+    /**
+     * Save the user
+     */
+    public function save()
+    {
+        $this->authorize('administrate');
+
+        $this->validate();
+
+        if ($this->password) {
+            $this->user->password = Hash::make($this->password);
+        }
+        $this->user->save();
+
+        // Livewire redirect() does not have "with" method.
+        // so we call session()->flash() directly instead.
+        session()->flash('success', "<strong>{$this->user->username}</strong> was "
+            . ($this->user->exists ? "updated!" : "created!"));
+        return redirect()->route('admin.users.index');
+    }
+
+    public function render()
+    {
+        return view('livewire.form.admin.user');
+    }
+}