Prevent licenses, models and assets from being deleted if they are assigned to something else

app/controllers/admin/AssetsController.php

@@ -202,11 +202,19 @@ class AssetsController extends AdminController {
 			return Redirect::to('admin')->with('error', Lang::get('admin/assets/message.not_found'));
 		}
 
-		// Delete the asset
-		$asset->delete();
+		if (isset($asset->assigneduser->id) && ($asset->assigneduser->id!=0)) {
+			// Redirect to the asset management page
+			return Redirect::to('admin')->with('error', Lang::get('admin/assets/message.assoc_users'));
+		} else {
+			// Delete the asset
+			$asset->delete();
+
+			// Redirect to the asset management page
+			return Redirect::to('admin')->with('success', Lang::get('admin/assets/message.delete.success'));
+		}
+
+
 
-		// Redirect to the asset management page
-		return Redirect::to('admin')->with('success', Lang::get('admin/assets/message.delete.success'));
 	}
 
 	/**

app/controllers/admin/LicensesController.php

@@ -187,11 +187,18 @@ class LicensesController extends AdminController {
 			return Redirect::to('admin/licenses')->with('error', Lang::get('admin/licenses/message.not_found'));
 		}
 
-		// Delete the license
-		$license->delete();
+		if (isset($license->assigneduser->id) && ($license->assigneduser->id!=0)) {
+			// Redirect to the asset management page
+			return Redirect::to('admin/licenses')->with('error', Lang::get('admin/licenses/message.assoc_users'));
+		} else {
+			// Delete the license
+			$license->delete();
+
+			// Redirect to the licenses management page
+			return Redirect::to('admin/licenses')->with('success', Lang::get('admin/licenses/message.delete.success'));
+		}
+
 
-		// Redirect to the licenses management page
-		return Redirect::to('admin/licenses')->with('success', Lang::get('admin/licenses/message.delete.success'));
 	}
 
 

app/controllers/admin/ModelsController.php

@@ -168,11 +168,20 @@ class ModelsController extends AdminController {
 			return Redirect::to('assets/models')->with('error', Lang::get('admin/models/message.not_found'));
 		}
 
-		// Delete the model
-		$model->delete();
+		if ($model->assets->count() > 0) {
+			// Throw an error that this model is associated with assets
+			return Redirect::to('assets/models')->with('error', Lang::get('admin/models/message.assoc_users'));
+
+		} else {
+			// Delete the model
+			$model->delete();
+
+			// Redirect to the models management page
+			return Redirect::to('assets/models')->with('success', Lang::get('admin/models/message.delete.success'));
+		}
+
+
 
-		// Redirect to the models management page
-		return Redirect::to('assets/models')->with('success', Lang::get('admin/models/message.delete.success'));
 	}
 
 

app/lang/en/admin/assets/message.php

@@ -3,6 +3,7 @@
 return array(
 
 	'does_not_exist' => 'Asset does not exist.',
+	'assoc_users'	 => 'This asset is currently checked out to a user and cannot be deleted. Please check the asset in first, and then try deleting again. ',
 
 	'create' => array(
 		'error'   => 'Asset was not created, please try again. :(',

app/lang/en/admin/licenses/message.php

@@ -4,6 +4,8 @@ return array(
 
 	'does_not_exist' => 'License does not exist.',
 	'user_does_not_exist' => 'User does not exist.',
+	'assoc_users'	 => 'This license is currently checked out to a user and cannot be deleted. Please check the license in first, and then try deleting again. ',
+
 
 	'create' => array(
 		'error'   => 'License was not created, please try again.',

app/lang/en/admin/models/message.php

@@ -3,6 +3,8 @@
 return array(
 
 	'does_not_exist' => 'Model does not exist.',
+	'assoc_users'	 => 'This model is currently associated with one or more assets and cannot be deleted. Please delete the assets, and then try deleting again. ',
+
 
 	'create' => array(
 		'error'   => 'Model was not created, please try again.',

app/models/License.php

@@ -30,7 +30,7 @@ class License extends Elegant {
   	}
 
   	/**
-	* Get action logs for this asset
+	* Get asset logs for this asset
 	*/
 	public function assetlog()
 	{
@@ -38,7 +38,7 @@ class License extends Elegant {
 	}
 
 	/**
-	* Get action logs for this asset
+	* Get admin user for this asset
 	*/
 	public function adminuser()
 	{