Added error message when saving or editing a paper type with duplicate name

application/controllers/Labels.php

@@ -118,8 +118,12 @@ class Labels extends CI_Controller {
 		else
 		{
 			$this->load->model('labels_model');
-			$this->labels_model->addPaper();
+			try {
-
+				$this->labels_model->addPaper();
+			} catch (\Throwable $th) {
+				$this->session->set_flashdata('error', 'Your paper could not be saved. Remember that it can\'t have the same name as existing paper types.');
+				redirect('labels/createpaper');
+			}
 			redirect('labels');
 		}
 
@@ -379,7 +383,13 @@ class Labels extends CI_Controller {
 
 	public function updatePaper($id) {
 		$this->load->model('labels_model');
-		$this->labels_model->updatePaper($id);
+		try {
+			$this->labels_model->updatePaper($id);
+		} catch (\Throwable $th) {
+			$this->session->set_flashdata('error', 'Your paper could not be saved. Remember that it can\'t have the same name as existing paper types.');
+			$cleanid = $this->security->xss_clean($id);
+			redirect('labels/editpaper/'.$cleanid);
+		}
 		$this->session->set_flashdata('message', 'Paper was saved.');
 		redirect('labels');
 	}

application/views/labels/createpaper.php

@@ -3,8 +3,22 @@
 <br>
 	<?php if($this->session->flashdata('message')) { ?>
 		<!-- Display Message -->
-		<div class="alert-message error">
+		<div class="alert alert-success" role="alert">
-		  <p><?php echo $this->session->flashdata('message'); ?></p>
+			<?php echo $this->session->flashdata('message'); ?>
+		</div>
+	<?php } ?>
+
+	<?php if($this->session->flashdata('error')) { ?>
+		<!-- Display Message -->
+		<div class="alert alert-danger" role="alert">
+			<?php echo $this->session->flashdata('error'); ?>
+		</div>
+	<?php } ?>
+
+	<?php if($this->session->flashdata('warning')) { ?>
+		<!-- Display Message -->
+		<div class="alert alert-warning" role="alert">
+			<?php echo $this->session->flashdata('warning'); ?>
 		</div>
 	<?php } ?>
 
@@ -33,8 +47,6 @@
 					</div>
   			</div>
 
-    			
-
 			<div class="form-group row">
     			<label class="col-sm-2 col-form-label" for="width">Width of paper</label>
 			    <div class="col-sm-4">

application/views/labels/editpaper.php

@@ -3,8 +3,22 @@
 <br>
 	<?php if($this->session->flashdata('message')) { ?>
 		<!-- Display Message -->
-		<div class="alert-message error">
+		<div class="alert alert-success" role="alert">
-		  <p><?php echo $this->session->flashdata('message'); ?></p>
+			<?php echo $this->session->flashdata('message'); ?>
+		</div>
+	<?php } ?>
+
+	<?php if($this->session->flashdata('error')) { ?>
+		<!-- Display Message -->
+		<div class="alert alert-danger" role="alert">
+			<?php echo $this->session->flashdata('error'); ?>
+		</div>
+	<?php } ?>
+
+	<?php if($this->session->flashdata('warning')) { ?>
+		<!-- Display Message -->
+		<div class="alert alert-warning" role="alert">
+			<?php echo $this->session->flashdata('warning'); ?>
 		</div>
 	<?php } ?>