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Display foreign keys from other schemas in PostgreSQL (thanks to Ondrej Letocha)

This commit is contained in:
Jakub Vrana
2011-07-12 16:03:39 +02:00
parent 33c4623345
commit 9e0e161253
5 changed files with 10 additions and 7 deletions

View File

@@ -436,7 +436,7 @@ if (!defined("DRIVER")) {
/** Get foreign keys in table
* @param string
* @return array array($name => array("db" => , "table" => , "source" => array(), "target" => array(), "on_delete" => , "on_update" => ))
* @return array array($name => array("db" => , "ns" => , "table" => , "source" => array(), "target" => array(), "on_delete" => , "on_update" => ))
*/
function foreign_keys($table) {
global $connection, $on_actions;

View File

@@ -261,13 +261,13 @@ ORDER BY a.attnum"
function foreign_keys($table) {
$return = array();
foreach (get_rows("SELECT tc.constraint_name, kcu.column_name, rc.update_rule AS on_update, rc.delete_rule AS on_delete, ccu.table_name AS table, ccu.column_name AS ref
foreach (get_rows("SELECT tc.constraint_name, kcu.column_name, rc.update_rule AS on_update, rc.delete_rule AS on_delete, unique_constraint_schema AS ns, ccu.table_name AS table, ccu.column_name AS ref
FROM information_schema.table_constraints tc
LEFT JOIN information_schema.key_column_usage kcu USING (constraint_catalog, constraint_schema, constraint_name)
LEFT JOIN information_schema.referential_constraints rc USING (constraint_catalog, constraint_schema, constraint_name)
LEFT JOIN information_schema.constraint_column_usage ccu ON rc.unique_constraint_catalog = ccu.constraint_catalog AND rc.unique_constraint_schema = ccu.constraint_schema AND rc.unique_constraint_name = ccu.constraint_name
WHERE tc.constraint_type = 'FOREIGN KEY' AND tc.table_name = " . q($table) //! there can be more unique_constraint_name
) as $row) {
WHERE tc.constraint_type = 'FOREIGN KEY' AND tc.constraint_schema = current_schema() AND tc.table_name = " . q($table) //! there can be more unique_constraint_name
) as $row) {
$foreign_key = &$return[$row["constraint_name"]];
if (!$foreign_key) {
$foreign_key = $row;