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Updated fetchMySQLKeys() to tolerate backticks #21

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Updated fetchMySQLKeys() to tolerate backticks #21

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6 changes: 3 additions & 3 deletions fSchema.php
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Original file line number Diff line number Diff line change
Expand Up @@ -1181,19 +1181,19 @@ private function fetchMySQLKeys()
$row = $result->fetchRow();

// Primary keys
preg_match_all('/PRIMARY KEY\s+\("(.*?)"\),?\n/U', $row['Create Table'], $matches, PREG_SET_ORDER);
preg_match_all('/PRIMARY KEY\s+\(["`](.*?)["`]\),?\n/U', $row['Create Table'], $matches, PREG_SET_ORDER);
if (!empty($matches)) {
$keys[$table]['primary'] = explode('","', strtolower($matches[0][1]));
}

// Unique keys
preg_match_all('/UNIQUE KEY\s+"([^"]+)"\s+\("(.*?)"\),?\n/U', $row['Create Table'], $matches, PREG_SET_ORDER);
preg_match_all('/UNIQUE KEY\s+["`]([^"`]+)["`]\s+\(["`](.*?)["`]\).*,?\n/U', $row['Create Table'], $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
$keys[$table]['unique'][] = explode('","', strtolower($match[2]));
}

// Foreign keys
preg_match_all('#FOREIGN KEY \("([^"]+)"\) REFERENCES "([^"]+)" \("([^"]+)"\)(?:\sON\sDELETE\s(SET\sNULL|SET\sDEFAULT|CASCADE|NO\sACTION|RESTRICT))?(?:\sON\sUPDATE\s(SET\sNULL|SET\sDEFAULT|CASCADE|NO\sACTION|RESTRICT))?#', $row['Create Table'], $matches, PREG_SET_ORDER);
preg_match_all('#FOREIGN KEY \(["`]([^"`]+)["`]\) REFERENCES ["`]([^"`]+)["`] \(["`]([^"`]+)["`]\)(?:\sON\sDELETE\s(SET\sNULL|SET\sDEFAULT|CASCADE|NO\sACTION|RESTRICT))?(?:\sON\sUPDATE\s(SET\sNULL|SET\sDEFAULT|CASCADE|NO\sACTION|RESTRICT))?#', $row['Create Table'], $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
$temp = array(
'column' => strtolower($match[1]),
Expand Down