changes for installation

Author: subhobiswas

src/database/migrations/create_permission_tables.php

@@ -4,27 +4,33 @@
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Support\Facades\Schema;
 
-class CreatePermissionTables extends Migration
+return new class extends Migration
 {
     public function up()
     {
-        Schema::create('roles', function (Blueprint $table) {
-            $table->id();
-            $table->string('name')->unique()->index();
-            $table->timestamps();
-        });
+        if (!Schema::hasTable('roles')) {
+            Schema::create('roles', function (Blueprint $table) {
+                $table->id();
+                $table->string('name')->unique()->index();
+                $table->timestamps();
+            });
+        }
 
-        Schema::create('permissions', function (Blueprint $table) {
-            $table->id();
-            $table->string('name')->unique()->index();
-            $table->timestamps();
-        });
+        if (!Schema::hasTable('permissions')) {
+            Schema::create('permissions', function (Blueprint $table) {
+                $table->id();
+                $table->string('name')->unique()->index();
+                $table->timestamps();
+            });
+        }
 
-        Schema::create('role_permission', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('role_id')->constrained()->onDelete('cascade');
-            $table->foreignId('permission_id')->constrained()->onDelete('cascade');
-        });
+        if (!Schema::hasTable('role_permission')) {
+            Schema::create('role_permission', function (Blueprint $table) {
+                $table->id();
+                $table->foreignId('role_id')->constrained()->onDelete('cascade');
+                $table->foreignId('permission_id')->constrained()->onDelete('cascade');
+            });
+        }
     }
 
     public function down()
@@ -33,4 +39,4 @@ public function down()
         Schema::dropIfExists('permissions');
         Schema::dropIfExists('roles');
     }
-}
+};