add bootstrap4/5 support (#67)

* gh-66 Change datatables extension to bootstrap 4

* gh-66 Fix sourcepath for bootstrap 4

* gh-66 Add switch to autodetect bootstrap version

* gh-66 Prepare bootstrap5 dependencies

* gh-66 Re-add plugins

- this line was accidentally removed in 241f749

Author: Radon8472

composer.json

@@ -29,7 +29,9 @@
         "php": ">=5.5.0",
         "yiisoft/yii2": "~2.0.13",
         "bower-asset/datatables": "~1.10.15",
-        "bower-asset/datatables-plugins": "~1.10.15"
+        "bower-asset/datatables-plugins": "~1.10.15",
+        "bower-asset/datatables.net-bs4": "~1.10.15",
+        "npm-asset/datatables.net-bs5": "~1.10.15"
     },
     "autoload": {
         "psr-4": {

src/assets/DataTableBootstrapAsset.php

@@ -12,8 +12,6 @@
 
 class DataTableBootstrapAsset extends AssetBundle
 {
-    public $sourcePath = '@bower/datatables-plugins/integration/bootstrap/3';
-
     public $depends = [
         DataTableBaseAsset::class,
     ];
@@ -22,9 +20,24 @@ public function init()
     {
         parent::init();
 
-        $this->depends[] = 'yii\bootstrap\BootstrapAsset';
-        $this->css[] = 'dataTables.bootstrap.css';
-        $this->js[] = 'dataTables.bootstrap' . (YII_ENV_DEV ? '' : '.min') . '.js';
+        if (class_exists('yii\bootstrap\BootstrapAsset')) {
+            $this->sourcePath = '@bower/datatables-plugins/integration/bootstrap/3';
+            $this->depends[] = 'yii\bootstrap\BootstrapAsset';
+            $this->css[] = 'dataTables.bootstrap.css';
+            $this->js[] = 'dataTables.bootstrap' . (YII_ENV_DEV ? '' : '.min') . '.js';
+
+        } else if(class_exists('yii\bootstrap4\BootstrapAsset')) {
+            $this->sourcePath = '@bower/datatables.net-bs4';
+            $this->depends[] = 'yii\bootstrap4\BootstrapAsset';
+            $this->css[] = 'css\dataTables.bootstrap4.css';
+            $this->js[] = 'js\dataTables.bootstrap4' . (YII_ENV_DEV ? '' : '.min') . '.js';
+
+        } else {
+            $this->sourcePath = '@npm/datatables.net-bs5';
+            $this->depends[] = 'yii\bootstrap5\BootstrapAsset';
+            $this->css[] = 'css\dataTables.bootstrap5.css';
+            $this->js[] = 'js\dataTables.bootstrap5' . (YII_ENV_DEV ? '' : '.min') . '.js';
+        }
     }
 
 }