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More precise pattern in foreign_keys()

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git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@137 7c3ca157-0c34-0410-bff1-cbf682f78f5c
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jakubvrana
2007-07-11 15:44:10 +00:00
parent 880607a6c3
commit 286a5ef52d
1 changed files with 7 additions and 5 deletions
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12
functions.inc.php
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@@ -70,17 +70,19 @@ function indexes($table) {
function foreign_keys($table) {
global $mysql;
static $pattern = '~`((?:[^`]+|``)*)`~';
static $pattern = '(?:[^`]+|``)+';
$return = array();
$result = $mysql->query("SHOW CREATE TABLE " . idf_escape($table));
if ($result) {
$create_table = $mysql->result($result, 1);
$result->free();
preg_match_all('~FOREIGN KEY \\((.+)\\) REFERENCES (?:`(.+)`\\.)?`(.+)` \\((.+)\\)~', $create_table, $matches, PREG_SET_ORDER);
preg_match_all("~FOREIGN KEY \\(((?:`$pattern`,? ?)+)\\) REFERENCES `($pattern)`(?:\\.`($pattern)`)? \\(((?:`$pattern`,? ?)+)\\)~", $create_table, $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
preg_match_all($pattern, $match[1], $source);
preg_match_all($pattern, $match[4], $target);
$return[] = array(idf_unescape($match[2]), idf_unescape($match[3]), array_map('idf_unescape', $source[1]), array_map('idf_unescape', $target[1]));
$db = idf_unescape(strlen($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]));
}
}
return $return;