sccs_laravel/app/Http/Controllers/CategoryController.php

<?php

namespace App\Http\Controllers;

use App\Models\Category;
use App\Models\CategoryNotes;
use App\Traits\ApiResponseHelper;
use App\Traits\ImageHelper;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;

class CategoryController extends Controller
{
    use ApiResponseHelper, ImageHelper;

    public function index()
    {
        $pageConfigs = [
            'pageHeader' => true,
            'showMenu' => true
        ];

        $breadcrumbs = [['link' => '/', 'name' => 'Home'], ['name' => 'Course']];
        $createUrl = [['url' => 'create', 'name' => "Course", 'slug' => 'category']];
        $categories = Category::all();

        return view('content.categories.index', [
            'breadcrumbs' => $breadcrumbs,
            'pageConfigs' => $pageConfigs,
            'createUrl' => $createUrl,
            'categories' => $categories
        ]);

    }

    public function create()
    {

        $pageConfigs = [
            'pageHeader' => true,
            'showMenu' => true
        ];

        $breadcrumbs = [['link' => '/admin/category', 'name' => 'Course'], ['name' => 'Add']];

        return view('content.categories.create', [
            'pageConfigs' => $pageConfigs,
            'breadcrumbs' => $breadcrumbs,
        ]);
    }

    public function store(Request $request)
    {
        $request->validate([
            'name' => ['required', 'min: 3'],
            'fee' => ['required'],
            'duration' => ['required'],
            'status' => ['required'],
            'picture' => ['required', 'image'],

        ]);
        try {
            DB::beginTransaction();
            $category = new Category();
            $category->name = $request->name;
            $category->fee = $request->fee;
            $category->duration_in_days = $request->duration;
            $category->status = $request->status;
            $category->created_by = Auth::user()->role;
            if ($request->hasFile('picture')) {
                $prefix = 'category';
                $categoryImagePath = $this->uploadFile($request->picture, $prefix, false);
                $category->picture = $categoryImagePath;
            }
            $category->save();
            DB::commit();
            return redirect()->route('category.index')->with([
                'success' => "Category created successfully"
            ]);
        } catch (\Throwable $exception) {
            DB::rollBack();
            return redirect()->back()->with([
                'error' => $exception->getMessage()
            ]);
        }
    }

    public function edit(Category $category)
    {

        $pageConfigs = [
            'pageHeader' => true,
            'showMenu' => true
        ];
        $breadcrumbs = [['link' => '/admin/category', 'name' => 'Course'], ['name' => 'Edit']];
        $notes = CategoryNotes::where('category_id', $category->id)->get();
        return view('content.categories.edit', [
            'pageConfigs' => $pageConfigs,
            'breadcrumbs' => $breadcrumbs,
            'category' => $category,
            'notes' => $notes,
        ]);
    }

    public function update(Request $request, Category $category)
    {

        $request->validate([
            'name' => ['required', 'min: 3'],
            'fee' => ['required'],
            'duration' => ['required'],
            'status' => ['required'],
            'picture' => ['nullable', 'image'],

        ]);
        if ($category->created_by  =='ADMIN' && auth()->user()->role != 'ADMIN'){
            return redirect()->back()->with([
                'error' => 'You do not have the permission to perform this task'
            ]);
        }
        try {

            DB::beginTransaction();
            $category->name = $request->name;
            $category->fee = $request->fee;
            $category->duration_in_days = $request->duration;
            $category->status = $request->status;
            if ($request->hasFile('picture')) {
                $prefix = 'category';
                $categoryImagePath = $this->updateFile($request->picture, $category->picture, $prefix, false);
                $category->picture = $categoryImagePath;
            }
            $category->update();
            DB::commit();
            return redirect()->back()->with([
                'success' => "Course updated successfully"
            ]);
        } catch (\Throwable $exception) {
            DB::rollBack();
            return redirect()->back()->with([
                'error' => $exception->getMessage()
            ]);
        }
    }

    public function destroy(Category $category)
    {

        if ($category->created_by  =='ADMIN' && auth()->user()->role != 'ADMIN'){
            return redirect()->back()->with([
                'error' => 'You do not have the permission to perform this task'
            ]);
        }

        try {
            DB::beginTransaction();
            if ($category->courses->count() > 0){
                return redirect()->back()->with([
                    'error' => 'Please delete all the records that are related to this course.'
                ]);
            }
            $this->deleteFile($category->picture);
            $category->delete();
            DB::commit();
            return redirect()->back()->with([
                'success' => "Course deleted successfully"
            ]);
        } catch (\Throwable $exception) {
            DB::rollBack();
            return redirect()->back()->with([
                'error' => $exception->getMessage()
            ]);
        }
    }
}