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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * * @package PhpMyAdmin-Designer */ /** * */ require_once './libraries/common.inc.php'; PMA_Response::getInstance()->disable(); require_once 'libraries/pmd_common.php'; $die_save_pos = 0; require_once 'pmd_save_pos.php'; extract($_POST, EXTR_SKIP); $tables = PMA_DBI_get_tables_full($db, $T1); $type_T1 = strtoupper($tables[$T1]['ENGINE']); $tables = PMA_DBI_get_tables_full($db, $T2); $type_T2 = strtoupper($tables[$T2]['ENGINE']); // native foreign key if (PMA_Util::isForeignKeySupported($type_T1) && PMA_Util::isForeignKeySupported($type_T2) && $type_T1 == $type_T2 ) { // relation exists? $existrel_foreign = PMA_getForeigners($db, $T2, '', 'foreign'); if (isset($existrel_foreign[$F2]) && isset($existrel_foreign[$F2]['constraint']) ) { PMD_return_new(0, __('Error: relation already exists.')); } // note: in InnoDB, the index does not requires to be on a PRIMARY // or UNIQUE key // improve: check all other requirements for InnoDB relations $result = PMA_DBI_query( 'SHOW INDEX FROM ' . PMA_Util::backquote($db) . '.' . PMA_Util::backquote($T1) . ';' ); $index_array1 = array(); // will be use to emphasis prim. keys in the table view while ($row = PMA_DBI_fetch_assoc($result)) { $index_array1[$row['Column_name']] = 1; } PMA_DBI_free_result($result); $result = PMA_DBI_query( 'SHOW INDEX FROM ' . PMA_Util::backquote($db) . '.' . PMA_Util::backquote($T2) . ';' ); $index_array2 = array(); // will be used to emphasis prim. keys in the table view while ($row = PMA_DBI_fetch_assoc($result)) { $index_array2[$row['Column_name']] = 1; } PMA_DBI_free_result($result); if (! empty($index_array1[$F1]) && ! empty($index_array2[$F2])) { $upd_query = 'ALTER TABLE ' . PMA_Util::backquote($db) . '.' . PMA_Util::backquote($T2) . ' ADD FOREIGN KEY (' . PMA_Util::backquote($F2) . ')' . ' REFERENCES ' . PMA_Util::backquote($db) . '.' . PMA_Util::backquote($T1) . '(' . PMA_Util::backquote($F1) . ')'; if ($on_delete != 'nix') { $upd_query .= ' ON DELETE ' . $on_delete; } if ($on_update != 'nix') { $upd_query .= ' ON UPDATE ' . $on_update; } $upd_query .= ';'; PMA_DBI_try_query($upd_query) or PMD_return_new(0, __('Error: Relation not added.')); PMD_return_new(1, __('FOREIGN KEY relation added')); } } else { // internal (pmadb) relation if ($GLOBALS['cfgRelation']['relwork'] == false) { PMD_return_new(0, __('General relation features') . ':' . __('Disabled')); } else { // no need to recheck if the keys are primary or unique at this point, // this was checked on the interface part $q = 'INSERT INTO ' . PMA_Util::backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_Util::backquote($cfgRelation['relation']) . '(master_db, master_table, master_field, foreign_db, foreign_table, foreign_field)' . ' values(' . '\'' . PMA_Util::sqlAddSlashes($db) . '\', ' . '\'' . PMA_Util::sqlAddSlashes($T2) . '\', ' . '\'' . PMA_Util::sqlAddSlashes($F2) . '\', ' . '\'' . PMA_Util::sqlAddSlashes($db) . '\', ' . '\'' . PMA_Util::sqlAddSlashes($T1) . '\',' . '\'' . PMA_Util::sqlAddSlashes($F1) . '\')'; if (PMA_queryAsControlUser($q, false, PMA_DBI_QUERY_STORE)) { PMD_return_new(1, __('Internal relation added')); } else { PMD_return_new(0, __('Error: Relation not added.')); } } } function PMD_return_new($b,$ret) { global $db,$T1,$F1,$T2,$F2; header("Content-Type: text/xml; charset=utf-8"); header("Cache-Control: no-cache"); die('<root act="relation_new" return="'.$ret.'" b="'.$b. '" DB1="'.urlencode($db). '" T1="'.urlencode($T1). '" F1="'.urlencode($F1). '" DB2="'.urlencode($db). '" T2="'.urlencode($T2). '" F2="'.urlencode($F2). '"></root>'); } ?>