wip

app/Rules/SortableColumnRule.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class SortableColumnRule implements ValidationRule
+{
+    /**
+     * Allowed columns for sorting
+     *
+     * @var array<string>
+     */
+    protected array $allowedColumns;
+
+    /**
+     * Sortable column rule
+     */
+    public function __construct(array $allowedColumns)
+    {
+        $this->allowedColumns = $allowedColumns;
+    }
+
+    /**
+     * Run the validation rule.
+     *
+     * @param  \Closure(string): \Illuminate\Translation\PotentiallyTranslatedString  $fail
+     */
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        // Format should be "coloumn-sort", example: 'created_at-descending'
+        $request_data = explode('-', $value);
+
+        if (count($request_data) !== 2) {
+            $fail(__('Format should be: "coloumn-sort"'));
+
+            return;
+        }
+
+        [$column, $sort] = $request_data;
+
+        if (! in_array($column, $this->allowedColumns)) {
+            $fail(__("Sorting by this {$column} is not allowed"));
+
+            return;
+        }
+
+        if (! in_array($sort, ['descending', 'ascending'])) {
+            $fail(__('You can only sort by ascending or descending!'));
+
+            return;
+        }
+    }
+}