protected function updateColumns()
{
$err_url = 'tbl_structure.php' . URL::getCommon(array('db' => $this->db, 'table' => $this->table));
$regenerate = false;
$field_cnt = count($_REQUEST['field_name']);
$changes = array();
$adjust_privileges = array();
for ($i = 0; $i < $field_cnt; $i++) {
if (!$this->columnNeedsAlterTable($i)) {
continue;
}
$changes[] = 'CHANGE ' . Table::generateAlter(Util_lib\get($_REQUEST, "field_orig.{$i}", ''), $_REQUEST['field_name'][$i], $_REQUEST['field_type'][$i], $_REQUEST['field_length'][$i], $_REQUEST['field_attribute'][$i], Util_lib\get($_REQUEST, "field_collation.{$i}", ''), Util_lib\get($_REQUEST, "field_null.{$i}", 'NOT NULL'), $_REQUEST['field_default_type'][$i], $_REQUEST['field_default_value'][$i], Util_lib\get($_REQUEST, "field_extra.{$i}", false), Util_lib\get($_REQUEST, "field_comments.{$i}", ''), Util_lib\get($_REQUEST, "field_virtuality.{$i}", ''), Util_lib\get($_REQUEST, "field_expression.{$i}", ''), Util_lib\get($_REQUEST, "field_move_to.{$i}", ''));
// find the remembered sort expression
$sorted_col = $this->table_obj->getUiProp(Table::PROP_SORTED_COLUMN);
// if the old column name is part of the remembered sort expression
if (mb_strpos($sorted_col, Util::backquote($_REQUEST['field_orig'][$i])) !== false) {
// delete the whole remembered sort expression
$this->table_obj->removeUiProp(Table::PROP_SORTED_COLUMN);
}
if (isset($_REQUEST['field_adjust_privileges'][$i]) && !empty($_REQUEST['field_adjust_privileges'][$i]) && $_REQUEST['field_orig'][$i] != $_REQUEST['field_name'][$i]) {
$adjust_privileges[$_REQUEST['field_orig'][$i]] = $_REQUEST['field_name'][$i];
}
}
// end for
if (count($changes) > 0 || isset($_REQUEST['preview_sql'])) {
// Builds the primary keys statements and updates the table
$key_query = '';
/**
* this is a little bit more complex
*
* @todo if someone selects A_I when altering a column we need to check:
* - no other column with A_I
* - the column has an index, if not create one
*
*/
// To allow replication, we first select the db to use
// and then run queries on this db.
if (!$this->dbi->selectDb($this->db)) {
Util::mysqlDie($this->dbi->getError(), 'USE ' . Util::backquote($this->db) . ';', false, $err_url);
}
$sql_query = 'ALTER TABLE ' . Util::backquote($this->table) . ' ';
$sql_query .= implode(', ', $changes) . $key_query;
$sql_query .= ';';
// If there is a request for SQL previewing.
if (isset($_REQUEST['preview_sql'])) {
PMA_previewSQL(count($changes) > 0 ? $sql_query : '');
}
$columns_with_index = $this->dbi->getTable($this->db, $this->table)->getColumnsWithIndex(Index::PRIMARY | Index::UNIQUE | Index::INDEX | Index::SPATIAL | Index::FULLTEXT);
$changedToBlob = array();
// While changing the Column Collation
// First change to BLOB
for ($i = 0; $i < $field_cnt; $i++) {
if (isset($_REQUEST['field_collation'][$i]) && isset($_REQUEST['field_collation_orig'][$i]) && $_REQUEST['field_collation'][$i] !== $_REQUEST['field_collation_orig'][$i] && !in_array($_REQUEST['field_orig'][$i], $columns_with_index)) {
$secondary_query = 'ALTER TABLE ' . Util::backquote($this->table) . ' CHANGE ' . Util::backquote($_REQUEST['field_orig'][$i]) . ' ' . Util::backquote($_REQUEST['field_orig'][$i]) . ' BLOB;';
$this->dbi->query($secondary_query);
$changedToBlob[$i] = true;
} else {
$changedToBlob[$i] = false;
}
}
// Then make the requested changes
$result = $this->dbi->tryQuery($sql_query);
if ($result !== false) {
$changed_privileges = $this->adjustColumnPrivileges($adjust_privileges);
if ($changed_privileges) {
$message = Message::success(__('Table %1$s has been altered successfully. Privileges ' . 'have been adjusted.'));
} else {
$message = Message::success(__('Table %1$s has been altered successfully.'));
}
$message->addParam($this->table);
$this->response->addHTML(Util::getMessage($message, $sql_query, 'success'));
} else {
// An error happened while inserting/updating a table definition
// Save the Original Error
$orig_error = $this->dbi->getError();
$changes_revert = array();
// Change back to Original Collation and data type
for ($i = 0; $i < $field_cnt; $i++) {
if ($changedToBlob[$i]) {
$changes_revert[] = 'CHANGE ' . Table::generateAlter(Util_lib\get($_REQUEST, "field_orig.{$i}", ''), $_REQUEST['field_name'][$i], $_REQUEST['field_type_orig'][$i], $_REQUEST['field_length_orig'][$i], $_REQUEST['field_attribute_orig'][$i], Util_lib\get($_REQUEST, "field_collation_orig.{$i}", ''), Util_lib\get($_REQUEST, "field_null_orig.{$i}", 'NOT NULL'), $_REQUEST['field_default_type_orig'][$i], $_REQUEST['field_default_value_orig'][$i], Util_lib\get($_REQUEST, "field_extra_orig.{$i}", false), Util_lib\get($_REQUEST, "field_comments_orig.{$i}", ''), Util_lib\get($_REQUEST, "field_virtuality_orig.{$i}", ''), Util_lib\get($_REQUEST, "field_expression_orig.{$i}", ''), Util_lib\get($_REQUEST, "field_move_to_orig.{$i}", ''));
}
}
$revert_query = 'ALTER TABLE ' . Util::backquote($this->table) . ' ';
$revert_query .= implode(', ', $changes_revert) . '';
$revert_query .= ';';
// Column reverted back to original
$this->dbi->query($revert_query);
$this->response->setRequestStatus(false);
$this->response->addJSON('message', Message::rawError(__('Query error') . ':<br />' . $orig_error));
$regenerate = true;
}
}
// update field names in relation
if (isset($_REQUEST['field_orig']) && is_array($_REQUEST['field_orig'])) {
foreach ($_REQUEST['field_orig'] as $fieldindex => $fieldcontent) {
if ($_REQUEST['field_name'][$fieldindex] != $fieldcontent) {
PMA_REL_renameField($this->db, $this->table, $fieldcontent, $_REQUEST['field_name'][$fieldindex]);
}
}
}
// update mime types
if (isset($_REQUEST['field_mimetype']) && is_array($_REQUEST['field_mimetype']) && $GLOBALS['cfg']['BrowseMIME']) {
foreach ($_REQUEST['field_mimetype'] as $fieldindex => $mimetype) {
if (isset($_REQUEST['field_name'][$fieldindex]) && strlen($_REQUEST['field_name'][$fieldindex]) > 0) {
PMA_setMIME($this->db, $this->table, $_REQUEST['field_name'][$fieldindex], $mimetype, $_REQUEST['field_transformation'][$fieldindex], $_REQUEST['field_transformation_options'][$fieldindex], $_REQUEST['field_input_transformation'][$fieldindex], $_REQUEST['field_input_transformation_options'][$fieldindex]);
}
}
}
return $regenerate;
}