* Updated user models and settings view file.

src/application/controllers/appointments.php

@@ -88,6 +88,9 @@ class Appointments extends CI_Controller {
                 $appointment = $post_data['appointment'];
                 $customer = $post_data['customer'];
 
+				if ($this->customers_model->exists($customer)) 
+					$customer['id'] = $this->customers_model->find_record_id($customer);
+					
                 $customer_id = $this->customers_model->add($customer);
                 $appointment['id_users_customer'] = $customer_id; 
                 

src/application/models/admins_model.php

@@ -221,16 +221,19 @@ class Admins_Model extends CI_Model {
         }
         
         // When inserting a record the email address must be unique.
+        $admin_id = (isset($admin['id'])) ? $admin['id'] : '';
+        
         $num_rows = $this->db
                 ->select('*')
                 ->from('ea_users')
                 ->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
                 ->where('ea_roles.slug', DB_SLUG_ADMIN)
                 ->where('ea_users.email', $admin['email'])
+                ->where('ea_users.id <>', $admin_id)
                 ->get()
                 ->num_rows();
         
-        if ($num_rows > 0 && !isset($admin['id'])) {
+        if ($num_rows > 0) {
             throw new Exception('Given email address belongs to another admin record. ' 
                     . 'Please use a different email.');
         }

src/application/models/customers_model.php

@@ -182,19 +182,22 @@ class Customers_Model extends CI_Model {
         }
         
         // When inserting a record the email address must be unique.
-        //$num_rows = $this->db
-        //        ->select('*')
-        //        ->from('ea_users')
-        //        ->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
-        //        ->where('ea_roles.slug', DB_SLUG_CUSTOMER)
-        //        ->where('ea_users.email', $customer['email'])
-        //        ->get()
-        //        ->num_rows();
-        //
-        //if ($num_rows > 0 && !isset($customer['id'])) {
-        //    throw new Exception('Given email address belongs to another customer record. ' 
-        //            . 'Please use a different email.');
-        //}
+        $customer_id = (isset($customer['id'])) ? $customer['id'] : '';
+        
+        $num_rows = $this->db
+                ->select('*')
+                ->from('ea_users')
+                ->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
+                ->where('ea_roles.slug', DB_SLUG_CUSTOMER)
+                ->where('ea_users.email', $customer['email'])
+                ->where('ea_users.id <>', $customer_id)
+                ->get()
+                ->num_rows();
+        
+        if ($num_rows > 0) {
+            throw new Exception('Given email address belongs to another customer record. ' 
+                    . 'Please use a different email.');
+        }
 
         return TRUE;
     }

src/application/models/providers_model.php

@@ -251,16 +251,19 @@ class Providers_Model extends CI_Model {
         }
         
         // When inserting a record the email address must be unique.
+        $provider_id = (isset($provider['id'])) ? $provider['id'] : '';
+        
         $num_rows = $this->db
                 ->select('*')
                 ->from('ea_users')
                 ->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
                 ->where('ea_roles.slug', DB_SLUG_PROVIDER)
                 ->where('ea_users.email', $provider['email'])
+                ->where('ea_users.id <>', $provider_id)
                 ->get()
                 ->num_rows();
         
-        if ($num_rows > 0 && !isset($provider['id'])) {
+        if ($num_rows > 0) {
             throw new Exception('Given email address belongs to another provider record. ' 
                     . 'Please use a different email.');
         }

src/application/models/secretaries_model.php

@@ -219,16 +219,19 @@ class Secretaries_Model extends CI_Model {
         }
         
         // When inserting a record the email address must be unique.
+        $secretary_id = (isset($secretary['id'])) ? $secretary['id'] : '';
+        
         $num_rows = $this->db
                 ->select('*')
                 ->from('ea_users')
                 ->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
                 ->where('ea_roles.slug', DB_SLUG_SECRETARY)
                 ->where('ea_users.email', $secretary['email'])
+                ->where('ea_users.id <>', $secretary_id)
                 ->get()
                 ->num_rows();
         
-        if ($num_rows > 0 && !isset($secretary['id'])) {
+        if ($num_rows > 0) {
             throw new Exception('Given email address belongs to another secretary record. ' 
                     . 'Please use a different email.');
         }

src/application/views/backend/settings.php

@@ -325,6 +325,8 @@
             official Google Group for answers. You might also need to create a new issue
             on the Google Code page in order to help the development progress.
             <br><br>
+            <a href="http://easyappointments.org">Official Website</a>
+            | 
             <a href="https://plus.google.com/communities/105333709485142846840">
                 Google+ Community</a>
             |