feature: support for all databases supported by laravel to the functionality for sorting alphanumeric values

composer.json

@@ -36,8 +36,7 @@
         "php": "^7.4.1 | ^8.0 | ^8.1",
         "livewire/livewire": "^2.4",
         "box/spout": "^3",
-        "doctrine/dbal": "^3.1",
-        "friendsofphp/php-cs-fixer": "^3.2"
+        "doctrine/dbal": "^3.1"
     },
     "scripts": {
         "test":  "@test:sqlite",

docker-compose.yml

@@ -0,0 +1,54 @@
+version: '3'
+services:
+  mysql:
+    container_name: 'mysql_test'
+    image: 'mysql/mysql-server:8.0'
+    ports:
+      - '3307:3306'
+    command: '--default-authentication-plugin=mysql_native_password'
+    environment:
+      MYSQL_ROOT_PASSWORD: 'password'
+      MYSQL_ROOT_HOST: "%"
+      MYSQL_DATABASE: 'powergridtest'
+      MYSQL_USER: 'powergrid'
+      MYSQL_PASSWORD: 'password'
+      MYSQL_ALLOW_EMPTY_PASSWORD: 1
+    networks:
+      - sail
+    healthcheck:
+      test: [ "CMD", "mysqladmin", "ping", "-ppassword" ]
+      retries: 3
+      timeout: 5s
+  pgsql:
+    container_name: 'pgsql_test'
+    image: 'postgres:13'
+    ports:
+      - '5433:5432'
+    environment:
+      PGPASSWORD: 'password'
+      POSTGRES_DB: 'powergridtest'
+      POSTGRES_USER: 'postgres'
+      POSTGRES_PASSWORD: 'password'
+    networks:
+      - sail
+    healthcheck:
+      test: [ "CMD", "pg_isready", "-q", "-d", "powergridtest", "-U", "postgres" ]
+      retries: 3
+      timeout: 5s
+  sqlsrv:
+    container_name: 'sqlsrv_test'
+    image: 'mcr.microsoft.com/mssql/server:2017-latest'
+    ports:
+      - '1434:1433'
+    environment:
+      ACCEPT_EULA: 'Y'
+      SA_PASSWORD: 'yourStrong(!)Password'
+    networks:
+      - sail
+    healthcheck:
+      test: [ "CMD", "/opt/mssql-tools/bin/sqlcmd", "-S", "localhost", "-U", "sa", "-P", "yourStrong(!)Password", "-Q", "select 1" ]
+      retries: 3
+      timeout: 5s
+networks:
+  sail:
+    driver: bridge

src/Helpers/SqlSupport.php

@@ -2,10 +2,18 @@
 
 namespace PowerComponents\LivewirePowerGrid\Helpers;
 
-use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\{DB, Schema};
 
 class SqlSupport
 {
+    /**
+     * @var array|string[]
+     */
+    private static array $sortStringNumberTypes = ['string', 'varchar', 'char'];
+
+    /**
+     * @return string
+     */
     public static function like(): string
     {
         $driverName = DB::getDriverName();
@@ -16,4 +24,64 @@ public static function like(): string
 
         return $likeSyntax[$driverName] ?? 'LIKE';
     }
+
+    /**
+     * @param string $sortField
+     * @return string
+     */
+    public static function sortStringAsNumber(string $sortField): string
+    {
+        $driverName = DB::getDriverName();
+
+        return self::getSortSqlByDriver($sortField, $driverName);
+    }
+
+    /**
+     * @param string $sortField
+     * @param string $driverName
+     * @param string $driverVersion
+     * @return string
+     */
+    private static function getSortSqlByDriver(string $sortField, string $driverName, string $driverVersion = '*'): string
+    {
+        $sqlByDriver = [
+            'sqlite' => [
+                '*' => "CAST($sortField AS INTEGER)",
+            ],
+            'mysql' => [
+                '*' => "CAST(NULLIF(REGEXP_REPLACE($sortField, '[[:alpha:]]+', ''), '') AS SIGNED INTEGER)",
+            ],
+            'pgsql' => [
+                '*' => "CAST(NULLIF(REGEXP_REPLACE($sortField, '\D', '', 'g'), '') AS INTEGER)",
+            ],
+            'sqlsrv' => [
+                '*' => "CAST(SUBSTRING($sortField, PATINDEX('%[a-z]%', $sortField), LEN($sortField)-PATINDEX('%[a-z]%', $sortField)) AS INT)",
+            ],
+        ];
+
+        return $sqlByDriver[$driverName][$driverVersion] ??  $sortField;
+    }
+
+    /**
+     * @param string $sortFieldType
+     * @return bool
+     */
+    public static function isValidSortFieldType(string $sortFieldType): bool
+    {
+        return in_array($sortFieldType, self::$sortStringNumberTypes);
+    }
+
+    /**
+     * @param string $sortField
+     * @return string
+     */
+    public static function getSortFieldType(string $sortField): string
+    {
+        $data = explode('.', $sortField);
+
+        return Schema::getConnection()
+            ->getDoctrineColumn($data[0], $data[1])
+            ->getType()
+            ->getName();
+    }
 }

src/PowerGridComponent.php

@@ -9,7 +9,7 @@
 use Illuminate\Pagination\{AbstractPaginator, LengthAwarePaginator};
 use Illuminate\Support\{Collection as BaseCollection, Str};
 use Livewire\{Component, WithPagination};
-use PowerComponents\LivewirePowerGrid\Helpers\{Collection, Model};
+use PowerComponents\LivewirePowerGrid\Helpers\{Collection, Model, SqlSupport};
 use PowerComponents\LivewirePowerGrid\Themes\ThemeBase;
 use PowerComponents\LivewirePowerGrid\Traits\{BatchableExport, Checkbox, Exportable, Filter, WithSorting};
 
@@ -174,7 +174,7 @@ public function mount(): void
      */
     public function showPerPage(int $perPage = 10): PowerGridComponent
     {
-        if (\Str::contains((string) $perPage, $this->perPageValues)) {
+        if (Str::contains((string) $perPage, $this->perPageValues)) {
             $this->perPageInput = true;
             $this->perPage      = $perPage;
         }
@@ -367,6 +367,8 @@ public function fillData()
             $sortField = $this->currentTable . '.' . $this->sortField;
         }
 
+        $sortFieldType = SqlSupport::getSortFieldType($sortField);
+
         /** @var Builder $results */
         $results = $this->resolveModel($datasource)
             ->where(function (Builder $query) {
@@ -379,8 +381,8 @@ public function fillData()
                     ->filter();
             });
 
-        if ($this->withSortStringNumber) {
-            $results->orderByRaw("$sortField+0 $this->sortDirection");
+        if ($this->withSortStringNumber && SqlSupport::isValidSortFieldType($sortFieldType)) {
+            $results->orderByRaw(SqlSupport::sortStringAsNumber($sortField) . ' ' . $this->sortDirection);
         }
 
         $results = $results->orderBy($sortField, $this->sortDirection);
@@ -419,6 +421,10 @@ private function transform($results)
         });
     }
 
+    /**
+     * @param string $field
+     * @throws Exception
+     */
     public function toggleColumn(string $field): void
     {
         $this->columns = collect($this->columns)->map(function ($column) use ($field) {

tests/Models/Category.php

@@ -7,7 +7,7 @@
 
 /**
  * @property int $id
- * @property int $name
+ * @property string $name
  * @property Carbon $created_at
  * @property Carbon $updated_at
  */