From 736c73358dfcd4cd3bd530aa8d04e987a54170cd Mon Sep 17 00:00:00 2001
From: jakubvrana <jakubvrana@7c3ca157-0c34-0410-bff1-cbf682f78f5c>
Date: Wed, 11 Jul 2007 16:02:57 +0000
Subject: [PATCH] Prepare for foreign keys edit

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@139 7c3ca157-0c34-0410-bff1-cbf682f78f5c
---
 foreign.inc.php   |  8 ++++++++
 functions.inc.php | 12 ++++++------
 index.php         |  2 ++
 table.inc.php     | 12 +++++++++---
 4 files changed, 25 insertions(+), 9 deletions(-)
 create mode 100644 foreign.inc.php

diff --git a/foreign.inc.php b/foreign.inc.php
new file mode 100644
index 000000000..194c74759
--- /dev/null
+++ b/foreign.inc.php
@@ -0,0 +1,8 @@
+<?php
+
+page_header(lang('Foreign key') . ": " . htmlspecialchars($_GET["foreign"]));
+
+if (strlen($_GET["name"])) {
+	$foreign_keys = foreign_keys($_GET["foreign"]);
+	$foreign_key = $foreign_keys[$_GET["name"]];
+}
diff --git a/functions.inc.php b/functions.inc.php
index 5b6a555f5..919ea25b5 100644
--- a/functions.inc.php
+++ b/functions.inc.php
@@ -76,13 +76,13 @@ function foreign_keys($table) {
 	if ($result) {
 		$create_table = $mysql->result($result, 1);
 		$result->free();
-		preg_match_all("~FOREIGN KEY \\(((?:`$pattern`,? ?)+)\\) REFERENCES `($pattern)`(?:\\.`($pattern)`)? \\(((?:`$pattern`,? ?)+)\\)~", $create_table, $matches, PREG_SET_ORDER);
+		preg_match_all("~CONSTRAINT `($pattern)` FOREIGN KEY \\(((?:`$pattern`,? ?)+)\\) REFERENCES `($pattern)`(?:\\.`($pattern)`)? \\(((?:`$pattern`,? ?)+)\\)~", $create_table, $matches, PREG_SET_ORDER);
 		foreach ($matches as $match) {
-			$db = idf_unescape(strlen($match[3]) ? $match[2] : $match[3]);
-			$table = idf_unescape(strlen($match[3]) ? $match[3] : $match[2]);
-			preg_match_all("~`($pattern)`~", $match[1], $source);
-			preg_match_all("~`($pattern)`~", $match[4], $target);
-			$return[] = array($db, $table, array_map('idf_unescape', $source[1]), array_map('idf_unescape', $target[1]));
+			$db = idf_unescape(strlen($match[4]) ? $match[3] : $match[4]);
+			$table = idf_unescape(strlen($match[4]) ? $match[4] : $match[3]);
+			preg_match_all("~`($pattern)`~", $match[2], $source);
+			preg_match_all("~`($pattern)`~", $match[5], $target);
+			$return[$match[1]] = array($db, $table, array_map('idf_unescape', $source[1]), array_map('idf_unescape', $target[1]));
 		}
 	}
 	return $return;
diff --git a/index.php b/index.php
index 84189e8d1..12435dc9a 100644
--- a/index.php
+++ b/index.php
@@ -47,6 +47,8 @@
 			include "./database.inc.php";
 		} elseif (isset($_GET["call"])) {
 			include "./call.inc.php";
+		} elseif (isset($_GET["foreign"])) {
+			include "./foreign.inc.php";
 		} else {
 			$TOKENS = array();
 			page_header(htmlspecialchars(lang('Database') . ": " . $_GET["db"]));
diff --git a/table.inc.php b/table.inc.php
index b487291df..7a631a664 100644
--- a/table.inc.php
+++ b/table.inc.php
@@ -33,15 +33,21 @@
 	}
 	echo '<p><a href="' . htmlspecialchars($SELF) . 'indexes=' . urlencode($_GET["table"]) . '">' . lang('Alter indexes') . "</a></p>\n";
 	
+	echo "<h3>" . lang('Foreign keys') . "</h3>\n";
 	$foreign_keys = foreign_keys($_GET["table"]);
 	if ($foreign_keys) {
-		echo "<h3>" . lang('Foreign keys') . "</h3>\n";
 		echo "<table border='1' cellspacing='0' cellpadding='2'>\n";
-		foreach ($foreign_keys as $foreign_key) {
-			echo "<tr><td><i>" . implode("</i>, <i>", $foreign_key[2]) . "</i></td><td>" . (strlen($foreign_key[0]) && $foreign_key[0] !== $_GET["db"] ? "<strong>" . htmlspecialchars($foreign_key[0]) . "</strong>." : "") . htmlspecialchars($foreign_key[1]) . "(<em>" . implode("</em>, <em>", $foreign_key[3]) . "</em>)</td></tr>\n";
+		foreach ($foreign_keys as $name => $foreign_key) {
+			echo "<tr>";
+			echo "<td><i>" . implode("</i>, <i>", $foreign_key[2]) . "</i></td>";
+			$link = (strlen($foreign_key[0]) && $foreign_key[0] !== $_GET["db"] ? "<strong>" . htmlspecialchars($foreign_key[0]) . "</strong>." : "") . htmlspecialchars($foreign_key[1]);
+			echo '<td><a href="' . htmlspecialchars(strlen($foreign_key[0]) ? preg_replace('~db=[^&]*~', "db=" . urlencode($foreign_key[0]), $SELF) : $SELF) . "table=" . urlencode($foreign_key[1]) . "\">$link</a>(<em>" . implode("</em>, <em>", $foreign_key[3]) . "</em>)</td>";
+			echo '<td><a href="' . htmlspecialchars($SELF) . 'foreign=' . urlencode($_GET["table"]) . '&amp;name=' . urlencode($name) . '">' . lang('Alter') . "</a></td>";
+			echo "</tr>\n";
 		}
 		echo "</table>\n";
 	}
+	echo '<p><a href="' . htmlspecialchars($SELF) . 'foreign=' . urlencode($_GET["table"]) . '">' . lang('Add foreign key') . "</a></p>\n";
 }
 
 if ($mysql->server_info >= 5) {