diff --git a/app/Helper/Common.php b/app/Helper/Common.php
new file mode 100644
index 0000000..89c4f6c
--- /dev/null
+++ b/app/Helper/Common.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Helper;
+
+class Common {
+    public static function convertRequestConfig(?array $requestConfig): array {
+        $config = [];
+        if (isset($requestConfig['timezone'])) $config['timezone'] = $requestConfig['timezone'];
+        if (isset($requestConfig['attendanceRadius'])) $config['attendance_radius'] = (double) $requestConfig['attendanceRadius'];
+        if (isset($requestConfig['mustInRadius'])) $config['must_in_radius'] = self::trueOrFalse($requestConfig['mustInRadius']);
+        if (isset($requestConfig['mustTakePicture'])) $config['must_take_picture'] = self::trueOrFalse($requestConfig['mustTakePicture']);
+
+        return $config;
+    }
+
+    public static function generateRandomString($length = 10) {
+        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+        $charactersLength = strlen($characters);
+        $randomString = '';
+        for ($i = 0; $i < $length; $i++) {
+            $randomString .= $characters[random_int(0, $charactersLength - 1)];
+        }
+        return $randomString;
+    }
+
+    public static function trueOrFalse(mixed $value): bool {
+        return ($value === "true" || $value === "1" || $value === 1 || $value === true) ? true : false;
+    }
+}
\ No newline at end of file
diff --git a/app/Helper/DatabaseHelper.php b/app/Helper/DatabaseHelper.php
new file mode 100644
index 0000000..9c2d82e
--- /dev/null
+++ b/app/Helper/DatabaseHelper.php
@@ -0,0 +1,29 @@
+<?php
+    namespace App\Helper;
+
+    use Illuminate\Validation\Rule;
+
+    class DatabaseHelper {
+        public static function str2SearchPatern($str) {
+            return '%'.preg_replace('!\s+!', '%', trim($str ?? '')).'%';
+        }
+
+        public static function trimNull($str) {
+            if(empty($str)) return null;
+            $str = trim($str);
+            return $str ? $str : null;
+        }
+        public static function trimUpperNull($str) {
+            $str = self::trimNull($str);
+            return $str ? strtoupper($str) : null;
+        }
+
+        public static function getOrderBysValidations($key = 'orderBys') {
+            return [
+                $key => 'nullable|array',
+                "$key.*"  => ['nullable', 'string', Rule::in(['asc', 'desc'])],
+            ];
+        }
+        public static function getSearchValidation() { return 'nullable|string'; }
+    }
+?>
\ No newline at end of file
diff --git a/app/Helper/Traits/Models/CanMultiOrderBy.php b/app/Helper/Traits/Models/CanMultiOrderBy.php
new file mode 100644
index 0000000..c192e6b
--- /dev/null
+++ b/app/Helper/Traits/Models/CanMultiOrderBy.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Helper\Traits\Models;
+
+use Illuminate\Database\Eloquent\Builder;
+
+trait CanMultiOrderBy {
+  public function scopeMultiOrderBy(Builder $queryBuilder, ?Array $orderBys, string $defaultOrderBy = '') {
+    $orderBys = $orderBys ?? [];
+    if(!empty($orderBys)) {
+        foreach($orderBys as $column => $direction) {
+            $queryBuilder->orderBy($column, $direction);
+        }
+    } else if($defaultOrderBy) {
+        $queryBuilder->orderByRaw($defaultOrderBy);
+    }
+  }
+}
diff --git a/app/Helper/Traits/Models/CanMultiSearch.php b/app/Helper/Traits/Models/CanMultiSearch.php
new file mode 100644
index 0000000..365db91
--- /dev/null
+++ b/app/Helper/Traits/Models/CanMultiSearch.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Helper\Traits\Models;
+
+use App\Helper\DatabaseHelper;
+use Illuminate\Database\Eloquent\Builder;
+
+trait CanMultiSearch {
+  public function scopeMultiSearch(Builder $queryBuilder, string|null $search, Array $searchColumns) {
+    $search = trim($search ?? '');
+    if(empty($search)) return $queryBuilder;
+    $search = DatabaseHelper::str2SearchPatern($search);
+
+    return $queryBuilder->where(function($q) use($search, $searchColumns) {
+        foreach($searchColumns as $column) {
+            $q->orWhere($column, 'ilike', "%$search%");
+        }
+    });
+  }
+}