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SQLite: Allow editing foreign keys

This commit is contained in:
Jakub Vrana
2013-08-09 15:16:15 -07:00
parent 62e582456e
commit 8a1b8910c1
6 changed files with 61 additions and 44 deletions

View File

@@ -436,6 +436,19 @@ function remove_definer($query) {
return preg_replace('~^([A-Z =]+) DEFINER=`' . preg_replace('~@(.*)~', '`@`(%|\\1)', logged_user()) . '`~', '\\1', $query); //! proper escaping of user
}
/** Format foreign key to use in SQL query
* @param array ("table" => string, "source" => array, "target" => array, "on_delete" => one of $on_actions, "on_update" => one of $on_actions)
* @return
*/
function format_foreign_key($foreign_key) {
global $on_actions;
return " FOREIGN KEY (" . implode(", ", array_map('idf_escape', $foreign_key["source"])) . ") REFERENCES " . table($foreign_key["table"])
. " (" . implode(", ", array_map('idf_escape', $foreign_key["target"])) . ")" //! reuse $name - check in older MySQL versions
. (preg_match("~^($on_actions)\$~", $foreign_key["on_delete"]) ? " ON DELETE $foreign_key[on_delete]" : "")
. (preg_match("~^($on_actions)\$~", $foreign_key["on_update"]) ? " ON UPDATE $foreign_key[on_update]" : "")
;
}
/** Add a file to TAR
* @param string
* @param TmpFile