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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Alter one or more table columns/fields
*
* linked from table_structure, uses libraries/tbl_properties.inc.php to display
* form and handles this form data
*
* @version $Id$
* @package phpMyAdmin
*/
/**
* Gets some core libraries
*/
require_once './libraries/common.inc.php';
require_once './libraries/Table.class.php';
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
// Check parameters
PMA_checkParameters(array('db', 'table'));
/**
* Gets tables informations
*/
require_once './libraries/tbl_common.php';
require_once './libraries/tbl_info.inc.php';
$active_page = 'tbl_structure.php';
/**
* Defines the url to return to in case of error in a sql statement
*/
$err_url = 'tbl_structure.php?' . PMA_generate_common_url($db, $table);
/**
* Modifications have been submitted -> updates the table
*/
$abort = false;
if (isset($_REQUEST['do_save_data'])) {
$field_cnt = count($_REQUEST['field_orig']);
$key_fields = array();
$changes = array();
for ($i = 0; $i < $field_cnt; $i++) {
$changes[] = 'CHANGE ' . PMA_Table::generateAlter(
$_REQUEST['field_orig'][$i],
$_REQUEST['field_name'][$i],
$_REQUEST['field_type'][$i],
$_REQUEST['field_length'][$i],
$_REQUEST['field_attribute'][$i],
isset($_REQUEST['field_collation'][$i])
? $_REQUEST['field_collation'][$i]
: '',
isset($_REQUEST['field_null'][$i])
? $_REQUEST['field_null'][$i]
: 'NOT NULL',
$_REQUEST['field_default_type'][$i],
$_REQUEST['field_default_value'][$i],
isset($_REQUEST['field_extra'][$i])
? $_REQUEST['field_extra'][$i]
: false,
isset($_REQUEST['field_comments'][$i])
? $_REQUEST['field_comments'][$i]
: '',
$key_fields,
$i,
$_REQUEST['field_default_orig'][$i]
);
} // end for
// Builds the primary keys statements and updates the table
$key_query = '';
/**
* this is a little bit more complex
*
* @todo if someone selects A_I when altering a column we need to check:
* - no other column with A_I
* - the column has an index, if not create one
*
if (count($key_fields)) {
$fields = array();
foreach ($key_fields as $each_field) {
if (isset($_REQUEST['field_name'][$each_field]) && strlen($_REQUEST['field_name'][$each_field])) {
$fields[] = PMA_backquote($_REQUEST['field_name'][$each_field]);
}
} // end for
$key_query = ', ADD KEY (' . implode(', ', $fields) . ') ';
}
*/
// To allow replication, we first select the db to use and then run queries
// on this db.
PMA_DBI_select_db($db) or PMA_mysqlDie(PMA_DBI_getError(), 'USE ' . PMA_backquote($db) . ';', '', $err_url);
// Optimization fix - 2 May 2001 - Robbat2
$sql_query = 'ALTER TABLE ' . PMA_backquote($table) . ' ' . implode(', ', $changes) . $key_query;
$result = PMA_DBI_try_query($sql_query);
if ($result !== false) {
$message = PMA_Message::success('strTableAlteredSuccessfully');
$message->addParam($table);
$btnDrop = 'Fake';
/**
* If comments were sent, enable relation stuff
*/
require_once './libraries/relation.lib.php';
require_once './libraries/transformations.lib.php';
// updaet field names in relation
if (isset($_REQUEST['field_orig']) && is_array($_REQUEST['field_orig'])) {
foreach ($_REQUEST['field_orig'] as $fieldindex => $fieldcontent) {
if ($_REQUEST['field_name'][$fieldindex] != $fieldcontent) {
PMA_REL_renameField($db, $table, $fieldcontent,
$_REQUEST['field_name'][$fieldindex]);
}
}
}
// update mime types
if (isset($_REQUEST['field_mimetype'])
&& is_array($_REQUEST['field_mimetype'])
&& $cfg['BrowseMIME']) {
foreach ($_REQUEST['field_mimetype'] as $fieldindex => $mimetype) {
if (isset($_REQUEST['field_name'][$fieldindex])
&& strlen($_REQUEST['field_name'][$fieldindex])) {
PMA_setMIME($db, $table, $_REQUEST['field_name'][$fieldindex],
$mimetype,
$_REQUEST['field_transformation'][$fieldindex],
$_REQUEST['field_transformation_options'][$fieldindex]);
}
}
}
$active_page = 'tbl_structure.php';
require './tbl_structure.php';
} else {
PMA_mysqlDie('', '', '', $err_url, false);
// garvin: An error happened while inserting/updating a table definition.
// to prevent total loss of that data, we embed the form once again.
// The variable $regenerate will be used to restore data in libraries/tbl_properties.inc.php
if (isset($_REQUEST['orig_field'])) {
$_REQUEST['field'] = $_REQUEST['orig_field'];
}
$regenerate = true;
}
}
/**
* No modifications yet required -> displays the table fields
*
* $selected comes from multi_submits.inc.php
*/
if ($abort == false) {
if (! isset($selected)) {
PMA_checkParameters(array('field'));
$selected[] = $_REQUEST['field'];
$selected_cnt = 1;
} else { // from a multiple submit
$selected_cnt = count($selected);
}
/**
* @todo optimize in case of multiple fields to modify
*/
for ($i = 0; $i < $selected_cnt; $i++) {
$_REQUEST['field'] = PMA_sqlAddslashes($selected[$i], true);
$result = PMA_DBI_query('SHOW FULL FIELDS FROM ' . PMA_backquote($table) . ' FROM ' . PMA_backquote($db) . ' LIKE \'' . $_REQUEST['field'] . '\';');
$fields_meta[] = PMA_DBI_fetch_assoc($result);
PMA_DBI_free_result($result);
}
$num_fields = count($fields_meta);
$action = 'tbl_alter.php';
// Get more complete field information.
// For now, this is done to obtain MySQL 4.1.2+ new TIMESTAMP options
// and to know when there is an empty DEFAULT value.
// Later, if the analyser returns more information, it
// could be executed to replace the info given by SHOW FULL FIELDS FROM.
/**
* @todo put this code into a require()
* or maybe make it part of PMA_DBI_get_fields();
*/
// We also need this to correctly learn if a TIMESTAMP is NOT NULL, since
// SHOW FULL FIELDS says NULL and SHOW CREATE TABLE says NOT NULL (tested
// in MySQL 4.0.25).
$show_create_table = PMA_DBI_fetch_value('SHOW CREATE TABLE ' . PMA_backquote($db) . '.' . PMA_backquote($table), 0, 1);
$analyzed_sql = PMA_SQP_analyze(PMA_SQP_parse($show_create_table));
unset($show_create_table);
/**
* Form for changing properties.
*/
require './libraries/tbl_properties.inc.php';
}
/**
* Displays the footer
*/
require_once './libraries/footer.inc.php';
?>