From 3e769815bf54ea1f0f29349fabb47f185dda9493 Mon Sep 17 00:00:00 2001
From: JorgeHeredia <jorgeheredia@gmail.com>
Date: Wed, 3 Sep 2014 14:10:52 -0300
Subject: [PATCH] Update on Oracle Driver

I added the code to display the foreign keys on the table description! cheers!
---
 adminer/drivers/oracle.inc.php | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/adminer/drivers/oracle.inc.php b/adminer/drivers/oracle.inc.php
index 5af007dd..c26c0d25 100644
--- a/adminer/drivers/oracle.inc.php
+++ b/adminer/drivers/oracle.inc.php
@@ -317,7 +317,29 @@ ORDER BY uc.constraint_type, uic.column_position", $connection2) as $row) {
 	}
 
 	function foreign_keys($table) {
-		return array(); //!
+		$return = array();
+		$query = "SELECT c_list.CONSTRAINT_NAME as NAME,
+c_src.COLUMN_NAME as SRC_COLUMN,
+c_dest.OWNER as DEST_DB,
+c_dest.TABLE_NAME as DEST_TABLE,
+c_dest.COLUMN_NAME as DEST_COLUMN,
+c_list.DELETE_RULE as ON_DELETE
+FROM ALL_CONSTRAINTS c_list, ALL_CONS_COLUMNS c_src, ALL_CONS_COLUMNS c_dest
+WHERE c_list.CONSTRAINT_NAME = c_src.CONSTRAINT_NAME
+AND c_list.R_CONSTRAINT_NAME = c_dest.CONSTRAINT_NAME
+AND c_list.CONSTRAINT_TYPE = 'R'
+AND c_src.TABLE_NAME = " . q($table);
+		foreach (get_rows($query) as $row) {
+			$return[$row['NAME']] = array(
+				"db" => $row['DEST_DB'],
+				"table" => $row['DEST_TABLE'],
+				"source" => array($row['SRC_COLUMN']),
+				"target" => array($row['DEST_COLUMN']),
+				"on_delete" => $row['ON_DELETE'],
+				"on_update" => null,
+			);
+		}
+		return $return;
 	}
 
 	function truncate_tables($tables) {