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4222 changed files with 721797 additions and 14 deletions
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<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Controllers\Table\Structure;
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use PhpMyAdmin\ConfigStorage\Relation;
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use PhpMyAdmin\Controllers\Table\AbstractController;
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use PhpMyAdmin\Controllers\Table\StructureController;
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use PhpMyAdmin\Core;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\Html\Generator;
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use PhpMyAdmin\Index;
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use PhpMyAdmin\Message;
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use PhpMyAdmin\ResponseRenderer;
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use PhpMyAdmin\Table;
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use PhpMyAdmin\Template;
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use PhpMyAdmin\Transformations;
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use PhpMyAdmin\Url;
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use PhpMyAdmin\Util;
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use function __;
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use function count;
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use function implode;
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use function in_array;
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use function is_array;
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use function mb_strpos;
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use function sprintf;
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use function strlen;
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final class SaveController extends AbstractController
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{
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/** @var Table The table object */
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private $tableObj;
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/** @var Relation */
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private $relation;
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/** @var Transformations */
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private $transformations;
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/** @var DatabaseInterface */
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private $dbi;
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/** @var StructureController */
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private $structureController;
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public function __construct(
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ResponseRenderer $response,
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Template $template,
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string $db,
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string $table,
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Relation $relation,
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Transformations $transformations,
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DatabaseInterface $dbi,
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StructureController $structureController
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) {
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parent::__construct($response, $template, $db, $table);
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$this->relation = $relation;
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$this->transformations = $transformations;
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$this->dbi = $dbi;
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$this->structureController = $structureController;
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$this->tableObj = $this->dbi->getTable($this->db, $this->table);
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}
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public function __invoke(): void
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{
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$regenerate = $this->updateColumns();
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if (! $regenerate) {
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// continue to show the table's structure
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unset($_POST['selected']);
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}
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($this->structureController)();
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}
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/**
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* Update the table's structure based on $_REQUEST
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*
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* @return bool true if error occurred
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*/
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private function updateColumns(): bool
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{
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$err_url = Url::getFromRoute('/table/structure', [
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'db' => $this->db,
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'table' => $this->table,
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]);
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$regenerate = false;
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$field_cnt = count($_POST['field_name'] ?? []);
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$changes = [];
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$adjust_privileges = [];
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$columns_with_index = $this->dbi
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->getTable($this->db, $this->table)
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->getColumnsWithIndex(Index::PRIMARY | Index::UNIQUE);
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for ($i = 0; $i < $field_cnt; $i++) {
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if (! $this->columnNeedsAlterTable($i)) {
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continue;
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}
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$changes[] = 'CHANGE ' . Table::generateAlter(
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Util::getValueByKey($_POST, 'field_orig.' . $i, ''),
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$_POST['field_name'][$i],
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$_POST['field_type'][$i],
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$_POST['field_length'][$i],
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$_POST['field_attribute'][$i],
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Util::getValueByKey($_POST, 'field_collation.' . $i, ''),
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Util::getValueByKey($_POST, 'field_null.' . $i, 'NO'),
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$_POST['field_default_type'][$i],
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$_POST['field_default_value'][$i],
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Util::getValueByKey($_POST, 'field_extra.' . $i, false),
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Util::getValueByKey($_POST, 'field_comments.' . $i, ''),
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Util::getValueByKey($_POST, 'field_virtuality.' . $i, ''),
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Util::getValueByKey($_POST, 'field_expression.' . $i, ''),
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Util::getValueByKey($_POST, 'field_move_to.' . $i, ''),
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$columns_with_index
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);
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// find the remembered sort expression
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$sorted_col = $this->tableObj->getUiProp(Table::PROP_SORTED_COLUMN);
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// if the old column name is part of the remembered sort expression
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if (mb_strpos((string) $sorted_col, Util::backquote($_POST['field_orig'][$i])) !== false) {
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// delete the whole remembered sort expression
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$this->tableObj->removeUiProp(Table::PROP_SORTED_COLUMN);
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}
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if (
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! isset($_POST['field_adjust_privileges'][$i])
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|| empty($_POST['field_adjust_privileges'][$i])
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|| $_POST['field_orig'][$i] == $_POST['field_name'][$i]
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) {
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continue;
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}
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$adjust_privileges[$_POST['field_orig'][$i]] = $_POST['field_name'][$i];
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}
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if (count($changes) > 0 || isset($_POST['preview_sql'])) {
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// Builds the primary keys statements and updates the table
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$key_query = '';
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/**
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* this is a little bit more complex
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*
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* @todo if someone selects A_I when altering a column we need to check:
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* - no other column with A_I
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* - the column has an index, if not create one
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*/
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// To allow replication, we first select the db to use
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// and then run queries on this db.
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if (! $this->dbi->selectDb($this->db)) {
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Generator::mysqlDie(
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$this->dbi->getError(),
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'USE ' . Util::backquote($this->db) . ';',
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false,
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$err_url
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);
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}
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$sql_query = 'ALTER TABLE ' . Util::backquote($this->table) . ' ';
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$sql_query .= implode(', ', $changes) . $key_query;
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if (isset($_POST['online_transaction'])) {
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$sql_query .= ', ALGORITHM=INPLACE, LOCK=NONE';
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}
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$sql_query .= ';';
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// If there is a request for SQL previewing.
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if (isset($_POST['preview_sql'])) {
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Core::previewSQL(count($changes) > 0 ? $sql_query : '');
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exit;
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}
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$columns_with_index = $this->dbi
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->getTable($this->db, $this->table)
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->getColumnsWithIndex(Index::PRIMARY | Index::UNIQUE | Index::INDEX | Index::SPATIAL | Index::FULLTEXT);
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$changedToBlob = [];
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// While changing the Column Collation
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// First change to BLOB
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for ($i = 0; $i < $field_cnt; $i++) {
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if (
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isset($_POST['field_collation'][$i], $_POST['field_collation_orig'][$i])
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&& $_POST['field_collation'][$i] !== $_POST['field_collation_orig'][$i]
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&& ! in_array($_POST['field_orig'][$i], $columns_with_index)
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) {
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$secondary_query = 'ALTER TABLE ' . Util::backquote($this->table)
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. ' CHANGE ' . Util::backquote($_POST['field_orig'][$i])
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. ' ' . Util::backquote($_POST['field_orig'][$i])
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. ' BLOB';
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if (isset($_POST['field_virtuality'][$i], $_POST['field_expression'][$i])) {
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if ($_POST['field_virtuality'][$i]) {
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$secondary_query .= ' AS (' . $_POST['field_expression'][$i] . ') '
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. $_POST['field_virtuality'][$i];
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}
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}
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$secondary_query .= ';';
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$this->dbi->query($secondary_query);
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$changedToBlob[$i] = true;
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} else {
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$changedToBlob[$i] = false;
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}
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}
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// Then make the requested changes
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$result = $this->dbi->tryQuery($sql_query);
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if ($result !== false) {
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$changed_privileges = $this->adjustColumnPrivileges($adjust_privileges);
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if ($changed_privileges) {
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$message = Message::success(
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__(
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'Table %1$s has been altered successfully. Privileges have been adjusted.'
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)
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);
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} else {
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$message = Message::success(
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__('Table %1$s has been altered successfully.')
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);
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}
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$message->addParam($this->table);
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$this->response->addHTML(
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Generator::getMessage($message, $sql_query, 'success')
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);
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} else {
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// An error happened while inserting/updating a table definition
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// Save the Original Error
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$orig_error = $this->dbi->getError();
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$changes_revert = [];
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// Change back to Original Collation and data type
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for ($i = 0; $i < $field_cnt; $i++) {
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if (! $changedToBlob[$i]) {
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continue;
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}
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$changes_revert[] = 'CHANGE ' . Table::generateAlter(
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Util::getValueByKey($_POST, 'field_orig.' . $i, ''),
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$_POST['field_name'][$i],
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$_POST['field_type_orig'][$i],
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$_POST['field_length_orig'][$i],
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$_POST['field_attribute_orig'][$i],
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Util::getValueByKey($_POST, 'field_collation_orig.' . $i, ''),
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Util::getValueByKey($_POST, 'field_null_orig.' . $i, 'NO'),
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$_POST['field_default_type_orig'][$i],
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$_POST['field_default_value_orig'][$i],
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Util::getValueByKey($_POST, 'field_extra_orig.' . $i, false),
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Util::getValueByKey($_POST, 'field_comments_orig.' . $i, ''),
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Util::getValueByKey($_POST, 'field_virtuality_orig.' . $i, ''),
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Util::getValueByKey($_POST, 'field_expression_orig.' . $i, ''),
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Util::getValueByKey($_POST, 'field_move_to_orig.' . $i, '')
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);
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}
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$revert_query = 'ALTER TABLE ' . Util::backquote($this->table)
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. ' ';
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$revert_query .= implode(', ', $changes_revert) . '';
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$revert_query .= ';';
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// Column reverted back to original
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$this->dbi->query($revert_query);
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$this->response->setRequestStatus(false);
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$message = Message::rawError(
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__('Query error') . ':<br>' . $orig_error
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);
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$this->response->addHTML(
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Generator::getMessage($message, $sql_query, 'error')
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);
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$regenerate = true;
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}
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}
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// update field names in relation
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if (isset($_POST['field_orig']) && is_array($_POST['field_orig'])) {
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foreach ($_POST['field_orig'] as $fieldindex => $fieldcontent) {
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if ($_POST['field_name'][$fieldindex] == $fieldcontent) {
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continue;
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}
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$this->relation->renameField($this->db, $this->table, $fieldcontent, $_POST['field_name'][$fieldindex]);
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}
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}
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// update mime types
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if (isset($_POST['field_mimetype']) && is_array($_POST['field_mimetype']) && $GLOBALS['cfg']['BrowseMIME']) {
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foreach ($_POST['field_mimetype'] as $fieldindex => $mimetype) {
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if (! isset($_POST['field_name'][$fieldindex]) || strlen($_POST['field_name'][$fieldindex]) <= 0) {
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continue;
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}
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$this->transformations->setMime(
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$this->db,
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$this->table,
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$_POST['field_name'][$fieldindex],
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$mimetype,
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$_POST['field_transformation'][$fieldindex],
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$_POST['field_transformation_options'][$fieldindex],
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$_POST['field_input_transformation'][$fieldindex],
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$_POST['field_input_transformation_options'][$fieldindex]
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);
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}
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}
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return $regenerate;
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}
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/**
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* Verifies if some elements of a column have changed
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*
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* @param int $i column index in the request
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*/
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private function columnNeedsAlterTable($i): bool
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{
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// these two fields are checkboxes so might not be part of the
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// request; therefore we define them to avoid notices below
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if (! isset($_POST['field_null'][$i])) {
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$_POST['field_null'][$i] = 'NO';
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}
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if (! isset($_POST['field_extra'][$i])) {
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$_POST['field_extra'][$i] = '';
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}
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// field_name does not follow the convention (corresponds to field_orig)
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if ($_POST['field_name'][$i] != $_POST['field_orig'][$i]) {
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return true;
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}
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$fields = [
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'field_attribute',
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'field_collation',
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'field_comments',
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'field_default_value',
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'field_default_type',
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'field_extra',
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'field_length',
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'field_null',
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'field_type',
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];
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foreach ($fields as $field) {
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if ($_POST[$field][$i] != $_POST[$field . '_orig'][$i]) {
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return true;
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}
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}
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return ! empty($_POST['field_move_to'][$i]);
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}
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/**
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* Adjusts the Privileges for all the columns whose names have changed
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*
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* @param array $adjust_privileges assoc array of old col names mapped to new
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* cols
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*/
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private function adjustColumnPrivileges(array $adjust_privileges): bool
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{
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$changed = false;
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if (
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Util::getValueByKey($GLOBALS, 'col_priv', false)
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&& Util::getValueByKey($GLOBALS, 'is_reload_priv', false)
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) {
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$this->dbi->selectDb('mysql');
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// For Column specific privileges
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foreach ($adjust_privileges as $oldCol => $newCol) {
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$this->dbi->query(
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sprintf(
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'UPDATE %s SET Column_name = "%s"
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WHERE Db = "%s"
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AND Table_name = "%s"
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AND Column_name = "%s";',
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Util::backquote('columns_priv'),
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$newCol,
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$this->db,
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$this->table,
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$oldCol
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)
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);
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// i.e. if atleast one column privileges adjusted
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$changed = true;
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}
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if ($changed) {
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// Finally FLUSH the new privileges
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$this->dbi->query('FLUSH PRIVILEGES;');
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}
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}
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return $changed;
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}
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}
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