fix: missing Postgre error message

Author: kenjis

system/Database/BaseConnection.php

@@ -420,6 +420,7 @@ public function initialize()
             // Connect to the database and set the connection ID
             $this->connID = $this->connect($this->pConnect);
         } catch (Throwable $e) {
+            $this->connID       = false;
             $connectionErrors[] = sprintf('Main connection [%s]: %s', $this->DBDriver, $e->getMessage());
             log_message('error', 'Error connecting to the database: ' . $e);
         }

system/Database/Postgre/Connection.php

@@ -80,15 +80,19 @@ public function connect(bool $persistent = false)
         if ($this->connID !== false) {
             if ($persistent === true && pg_connection_status($this->connID) === PGSQL_CONNECTION_BAD && pg_ping($this->connID) === false
             ) {
-                return false;
+                $error = pg_last_error($this->connID);
+
+                throw new DatabaseException($error);
             }
 
             if (! empty($this->schema)) {
                 $this->simpleQuery("SET search_path TO {$this->schema},public");
             }
 
             if ($this->setClientEncoding($this->charset) === false) {
-                return false;
+                $error = pg_last_error($this->connID);
+
+                throw new DatabaseException($error);
             }
         }