Let createNew in EntityModel determine whether public_id is needed

app/Models/AccountGatewaySettings.php

@@ -20,41 +20,6 @@ class AccountGatewaySettings extends EntityModel
         return $this->belongsTo('App\Models\GatewayType');
     }
 
-    /**
-     * @param null $context
-     * @return mixed
-     */
-    public static function createNew($context = null)
-    {
-        $className = get_called_class();
-        $entity = new $className();
-
-        if ($context) {
-            $user = $context instanceof User ? $context : $context->user;
-            $account = $context->account;
-        } elseif (Auth::check()) {
-            $user = Auth::user();
-            $account = Auth::user()->account;
-        } else {
-            Utils::fatalError();
-        }
-
-        $entity->user_id = $user->id;
-        $entity->account_id = $account->id;
-
-        // store references to the original user/account to prevent needing to reload them
-        $entity->setRelation('user', $user);
-        $entity->setRelation('account', $account);
-
-        if (method_exists($className, 'trashed')){
-            $lastEntity = $className::whereAccountId($entity->account_id)->withTrashed();
-        } else {
-            $lastEntity = $className::whereAccountId($entity->account_id);
-        }
-
-        return $entity;
-    }
-
     public function setCreatedAtAttribute($value)
     {
         // to Disable created_at

app/Models/EntityModel.php

@@ -2,6 +2,7 @@
 
 use Auth;
 use Eloquent;
+use Illuminate\Database\QueryException;
 use Utils;
 use Validator;
 
@@ -56,6 +57,8 @@ class EntityModel extends Eloquent
             $lastEntity = $className::whereAccountId($entity->account_id);
         }
 
+
+        try {
             $lastEntity = $lastEntity->orderBy('public_id', 'DESC')
                                      ->first();
 
@@ -64,6 +67,14 @@ class EntityModel extends Eloquent
             } else {
                 $entity->public_id = 1;
             }
+        } catch
+        (QueryException $ex) {
+            // Code 42S22 is for an unknown column.
+            // If we get that code, we'll just swallow the error, since apparently this entity doesn't support public_ids.
+            if ($ex->getCode() !== '42S22') {
+                throw $ex;
+            }
+        }
 
         return $entity;
     }