Add recipe duplicate functionality

app/Http/Controllers/RecipeController.php

@@ -12,6 +12,7 @@ use App\Support\Number;
 use App\Support\Nutrients;
 use Illuminate\Contracts\View\View;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Str;
@@ -350,6 +351,30 @@ class RecipeController extends Controller
         $recipe->ingredientSeparators()->saveMany($ingredient_separators);
     }
 
+    /**
+     * Confirm duplicating recipe.
+     */
+    public function duplicateConfirm(Recipe $recipe): View {
+        return view('recipes.duplicate')->with('recipe', $recipe);
+    }
+
+    /**
+     * Duplicate a recipe.
+     */
+    public function duplicate(Request $request, Recipe $recipe): RedirectResponse
+    {
+        $attributes = $request->validate(['name' => ['required', 'string']]);
+
+        try {
+            $new_recipe = $recipe->duplicate($attributes);
+        } catch (\Throwable $e) {
+            return back()->withInput()->withErrors($e->getMessage());
+        }
+
+        return redirect()->route('recipes.show', $new_recipe)
+            ->with('message', "Recipe {$recipe->name} duplicated!");
+    }
+
     /**
      * Confirm removal of specified resource.
      */

app/Models/Recipe.php

@@ -14,6 +14,7 @@ use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
 use Spatie\Image\Manipulations;
 use Spatie\MediaLibrary\HasMedia;
 use Spatie\MediaLibrary\InteractsWithMedia;
@@ -262,4 +263,55 @@ final class Recipe extends Model implements HasMedia
             ->optimize();
     }
 
+    /**
+     * Duplicates the recipe, updating provided attributes.
+     *
+     * @throws \Throwable
+     */
+    public function duplicate(array $attributes): Recipe {
+        /** @var \App\Models\Recipe $recipe */
+        $recipe = $this->replicate();
+        $recipe->fill($attributes);
+
+        try {
+            DB::transaction(function () use ($recipe) {
+                $recipe->save();
+
+                $recipe->tags()->attach($this->tags);
+
+                $ingredient_amounts = [];
+                foreach ($this->ingredientAmounts as $ia) {
+                    $new_ia = $ia->replicate();
+                    $new_ia->parent_id = $recipe->id;
+                    $new_ia->parent_type = Recipe::class;
+                    $ingredient_amounts[] = $new_ia;
+                }
+                $recipe->ingredientAmounts()->saveMany($ingredient_amounts);
+
+                $steps = [];
+                foreach ($this->steps as $step) {
+                    $new_step = $step->replicate();
+                    $new_step->recipe_id = $recipe->id;
+                    $steps[] = $new_step;
+                }
+                $recipe->steps()->saveMany($steps);
+
+                $separators = [];
+                foreach ($this->separators as $separator) {
+                    $new_separator = $separator->replicate();
+                    $new_separator->recipe_id = $recipe->id;
+                    $separators[] = $new_separator;
+                }
+                $recipe->separators()->saveMany($separators);
+
+                $recipe->push();
+            });
+        } catch (\Throwable $e) {
+            DB::rollBack();
+            throw $e;
+        }
+
+        return $recipe;
+    }
+
 }

resources/views/recipes/duplicate.blade.php

@@ -0,0 +1,30 @@
+<x-app-layout>
+    <x-slot name="title">Duplicate {{ $recipe->name }}</x-slot>
+    <x-slot name="header">
+        <h1 class="font-semibold text-xl text-gray-800 leading-tight">
+            Duplicate {{ $recipe->name }}?
+        </h1>
+    </x-slot>
+    <form method="POST" action="{{ route('recipes.duplicate', $recipe) }}">
+        @csrf
+        <div class="flex flex-col space-y-4 md:flex-row md:space-x-4 md:space-y-0">
+            <!-- Name -->
+            <div class="flex-auto">
+                <x-inputs.label for="name" value="New recipe name" />
+
+                <x-inputs.input name="name"
+                                type="text"
+                                class="block mt-1 w-full"
+                                :value="old('name', 'Copy of ' . $recipe->name)"
+                                required />
+            </div>
+        </div>
+        <div class="flex items-center justify-start mt-4">
+            <x-inputs.button class="bg-red-800 hover:bg-red-700">
+                Duplicate
+            </x-inputs.button>
+            <a class="ml-3 text-gray-500 hover:text-gray-700" href="{{ route('recipes.show', $recipe) }}">
+                Cancel</a>
+        </div>
+    </form>
+</x-app-layout>

resources/views/recipes/show.blade.php

@@ -167,6 +167,9 @@
                 <x-button-link.gray href="{{ route('recipes.edit', $recipe) }}">
                     Edit Recipe
                 </x-button-link.gray>
+                <x-button-link.gray href="{{ route('recipes.duplicate.confirm', $recipe) }}">
+                    Duplicate Recipe
+                </x-button-link.gray>
                 <x-button-link.red href="{{ route('recipes.delete', $recipe) }}">
                     Delete Recipe
                 </x-button-link.red>

routes/auth.php

@@ -49,6 +49,9 @@ Route::middleware(['auth'])->group(function () {
     // Recipes.
     Route::resource('recipes', RecipeController::class);
     Route::get('/recipes/{recipe}/delete', [RecipeController::class, 'delete'])->name('recipes.delete');
+    Route::get('/recipes/{recipe}/duplicate', [RecipeController::class, 'duplicateConfirm'])->name('recipes.duplicate.confirm');
+    Route::post('/recipes/{recipe}/duplicate', [RecipeController::class, 'duplicate'])->name('recipes.duplicate');
+
 
     // Users.
     Route::get('/profile/{user}', [ProfileController::class, 'show'])->name('profiles.show');