akaunting 3.0 (the last dance)

app/Builders/Category.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Builders;
+
+use GeneaLabs\LaravelModelCaching\CachedBuilder;
+use Illuminate\Pagination\Paginator;
+
+class Category extends CachedBuilder
+{
+    /**
+     * Execute the query as a "select" statement.
+     *
+     * @param  array|string  $columns
+     * @return \Illuminate\Support\Collection
+     */
+    public function get($columns = ['*'])
+    {
+        $collection = parent::get($columns);
+
+        return $collection->withChildren('sub_categories', function ($list, $parent, $relation, $level, $addChildren) {
+            $parent->load($relation);
+            $parent->level = $level;
+
+            $list->push($parent);
+
+            if ($parent->$relation->count() == 0) {
+                return;
+            }
+
+            foreach ($parent->$relation as $item) {
+                $addChildren($list, $item, $relation, $level + 1, $addChildren);
+            }
+        });
+    }
+
+    /**
+     * Get the categories excluding their children.
+     *
+     * @param  array|string  $columns
+     * @return \Illuminate\Support\Collection
+     */
+    public function getWithoutChildren($columns = ['*'])
+    {
+        return parent::get($columns);
+    }
+
+    /**
+     * Paginate the given query.
+     *
+     * @param  int|null  $perPage
+     * @param  array  $columns
+     * @param  string  $pageName
+     * @param  int|null  $page
+     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function paginate($perPage = null, $columns = ['*'], $pageName = 'page', $page = null)
+    {
+        $page = $page ?: Paginator::resolveCurrentPage($pageName);
+
+        $perPage = $perPage ?: $this->model->getPerPage();
+
+        $results = ($total = $this->toBase()->getCountForPagination())
+        ? $this->forPage($page, $perPage)->getWithoutChildren($columns)
+        : $this->model->newCollection();
+
+        return $this->paginator($results, $total, $perPage, $page, [
+            'path' => Paginator::resolveCurrentPath(),
+            'pageName' => $pageName,
+        ]);
+    }
+}