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