Fitnessblog/app/Livewire/Admin/Categories.php

<?php

namespace App\Livewire\Admin;

use Livewire\Component;
use App\Models\ParentCategory;
use App\Models\Category;
use Livewire\WithPagination;

class Categories extends Component
{

    use WithPagination;

    public $isUpdateParentCategoryMode = false;
    public $pcategory_id, $pcategory_name;

    public $isUpdateCategoryMode = false;
    public $category_id, $parent = 0, $category_name;

    public $pcategoriesPerPage = 8;
    public $categoriesPerPage = 10;

    protected $listeners = [
        'updateCategoryOrdering',
        'updateParentCategoryOrdering',
        'deleteParentCategoryAction',
        'deleteCategoryAction'
    ];

    public function addParentCategory() {
        $this->pcategory_id = null;
        $this->pcategory_name = null;
        $this->isUpdateParentCategoryMode = false;
        $this->showParentCategoryModalForm();
    }

    public function createParentCategory() {
        $this->validate([
            'pcategory_name' => 'required|unique:parent_categories,name'
        ], [
            'pcategory_name.required' => 'Name wird benötigt',
            'pcategory_name.unique' => 'Name wird bereits verwendet',
        ]);

        $pcategory = new ParentCategory();
        $pcategory->name = $this->pcategory_name;
        $saved = $pcategory->save();

        if($saved) {
            $this->hideParentCategoryModalForm();
            $this->dispatch("showToastr", ["type" => "success", "message" => "Neue Haupt Kategorie wurde erstellt"]);
        } else {
            $this->dispatch("showToastr", ["type" => "error", "message" => "Haupt Kategorie konnte nicht erstellt werden"]);
        }

    }

    public function editParentCategory($id) {
        $pcategory = ParentCategory::findOrFail($id);
        $this->pcategory_id = $pcategory->id;
        $this->pcategory_name = $pcategory->name;
        $this->isUpdateParentCategoryMode = true;
        $this->showParentCategoryModalForm();
    }

    public function updateParentCategory() {
        $pcategory = ParentCategory::findOrFail($this->pcategory_id);

        $this->validate([
            'pcategory_name' => 'required|unique:parent_categories,name,'.$pcategory->id
        ], [
            'pcategory_name.required' => 'Name wird benötigt',
            'pcategory_name.unique' => 'Name bereits vergeben',
        ]);

        $pcategory->name = $this->pcategory_name;
        $pcategory->slug = null;
        $updated = $pcategory->save();

        if($updated) {
            $this->hideParentCategoryModalForm();
            $this->dispatch('showToastr', ['type' => 'success', 'message' => 'Haupt Kategorie wurde erfolgreich bearbeitet']);
        } else {
            $this->dispatch('showToastr', ['type' => 'error', 'message' => 'Haupt Kategorie konnte nicht bearbeitet werden']);
        }
    }

    public function updateParentCategoryOrdering($positions) {
        foreach($positions as $position) {
            $index = $position[0];
            $new_position = $position[1];
            ParentCategory::where('id', $index)->update([
                'ordering' => $new_position
            ]);
        }
        $this->dispatch('showToastr', ['type' => 'success', 'message' => 'Haupt Kategorie wurde neu sortiert']);
    }

    public function updateCategoryOrdering($positions) {
        foreach($positions as $position) {
            $index = $position[0];
            $new_position = $position[1];
            Category::where('id', $index)->update([
                'ordering' => $new_position
            ]);
        }
        $this->dispatch('showToastr', ['type' => 'success', 'message' => 'Kategorie wurde neu sortiert']);
    }

    public function deleteParentCategory($id) {
        $this->dispatch('deleteParentCategory', ['id' => $id]);
    }

    public function deleteParentCategoryAction($id) {
        $pcategory = ParentCategory::findOrFail($id);

        if($pcategory->children->count() > 0) {
            foreach($pcategory->children as $category) {
                Category::where('id', $category->id)->update(['parent' => 0]);
            }
        }

        $delete = $pcategory->delete();

        if($delete) {
            $this->dispatch('showToastr', ['type' => 'success', 'message' => 'Haupt Kategorie wurde erfolgreich gelöscht']);
        } else {
            $this->dispatch('showToastr', ['type' => 'error', 'message' => 'Fehler beim löschen der Haupt Kategorie']);
        }
    }

    public function showParentCategoryModalForm() {
        $this->resetErrorBag();
        $this->dispatch("showParentCategoryModalForm");
    }

    public function hideParentCategoryModalForm() {
        $this->dispatch("hideParentCategoryModalForm");
        $this->isUpdateParentCategoryMode = false;
        $this->pcategory_id = $this->pcategory_name = null;
    }

    public function createCategory() {
        $this->validate([
            'category_name' => 'required|unique:categories,name'
        ], [
            'category_name.required' => 'Kategorie Name wird benötigt',
            'category_name.unique' => 'Kategorie Name bereits vergeben' 
        ]);

        $category = new Category();
        $category->parent = $this->parent;
        $category->name = $this->category_name;
        $saved = $category->save();

        if($saved) {
            $this->hideCategoryModalForm();
            $this->dispatch("showToastr", ['type' => 'success', 'message' => 'Kategorie wurde erfolgreich erstellt']);
        } else {
            $this->dispatch("showToastr", ['type' => 'error', 'message' => 'Kategorie konnte nicht erstellt werden']);
        }
    }

    public function addCategory() {
        $this->pcategory_id = null;
        $this->parent = 0;
        $this->pcategory_name = null;
        $this->isUpdateCategoryMode = false;
        $this->showCategoryModalForm();
    }

    public function showCategoryModalForm() {
        $this->resetErrorBag();
        $this->dispatch('showCategoryModalForm');
    }

    public function hideCategoryModalForm() {
        $this->dispatch('hideCategoryModalForm');
        $this->isUpdateCategoryMdoe = false;
        $this->category_id = $this->category_name = null;
        $this->parent = 0;
    }

    public function editCategory($id) {
        $category = Category::findOrFail($id);
        $this->category_id = $category->id;
        $this->parent = $category->parent;
        $this->category_name = $category->name;
        $this->isUpdateCategoryMode = true;
        $this->showCategoryModalForm();
    }

    public function updateCategory() {
        $category = Category::findOrFail($this->category_id);
        $this->validate([
            'category_name' => 'required|unique:categories,name,'.$category->id
        ], [
            'category_name.required' => 'Kategorie Name wird benötigt',
            'category_name.unique' => 'Kategorie Name bereits vergeben',
        ]);

        $category->name = $this->category_name;
        $category->parent = $this->parent;
        $category_slug = null;
        $updated = $category->save();

        if($updated) {
            $this->hideCategoryModalForm();
            $this->dispatch("showToastr", ["type" => "success", "message" => "Kategorie wurde erfolgreich bearbeitet"]);
        } else {
            $this->dispatch("showToastr", ["type" => "error", "message" => "Kategorie konnte nicht bearbeitet werden"]);
        }
    }

    public function deleteCategory($id) {
        $this->dispatch('deleteCategory', ['id' => $id]);
    }

    public function deleteCategoryAction($id) {
        $category = Category::findOrFail($id);

        iF($category->posts->count() > 0 ) {
            $count = $category->posts->count();
            $this->dispatch('showToastr', ['type' => 'error', 'message' => "Diese Kategorie hat ($count) Post/s. Kann daher nicht gelöscht werden"]);
        } else {
            $delete = $category->delete();

            if($delete) {
                $this->dispatch('showToastr', ['type' => 'success', 'message' => 'Kategorie wurde erfolgreich gelöscht']);
            } else {
                $this->dispatch('showToastr', ['type' => 'error', 'message' => 'Fehler beim löschen der Kategorie']);
            }
        }
    }

    public function render()
    {
        return view('livewire.admin.categories', 
        [
            'pcategories' => ParentCategory::orderBy('ordering', 'asc')->paginate($this->pcategoriesPerPage, ["*"],'pcat_page'),
            'categories' => Category::orderBy('ordering', 'asc')->paginate($this->categoriesPerPage,["*"],'cat_page')
        ]);
    }
}