278 lines
7.6 KiB
PHP
278 lines
7.6 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Set of functions related to table indexes
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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require_once 'libraries/Template.class.php';
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/**
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* Function to get the name and type of the columns of a table
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*
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* @param string $db current database
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* @param string $table current table
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*
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* @return array
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*/
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function PMA_getNameAndTypeOfTheColumns($db, $table)
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{
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$columns = array();
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foreach ($GLOBALS['dbi']->getColumnsFull($db, $table) as $row) {
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if (preg_match('@^(set|enum)\((.+)\)$@i', $row['Type'], $tmp)) {
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$tmp[2] = /*overload*/mb_substr(
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preg_replace('@([^,])\'\'@', '\\1\\\'', ',' . $tmp[2]), 1
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);
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$columns[$row['Field']] = $tmp[1] . '('
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. str_replace(',', ', ', $tmp[2]) . ')';
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} else {
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$columns[$row['Field']] = $row['Type'];
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}
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} // end while
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return $columns;
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}
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/**
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* Function to handle the creation or edit of an index
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*
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* @param string $db current db
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* @param string $table current table
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* @param PMA_Index $index current index
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*
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* @return void
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*/
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function PMA_handleCreateOrEditIndex($db, $table, $index)
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{
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$error = false;
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$sql_query = PMA_getSqlQueryForIndexCreateOrEdit($db, $table, $index, $error);
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// If there is a request for SQL previewing.
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if (isset($_REQUEST['preview_sql'])) {
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PMA_previewSQL($sql_query);
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}
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if (! $error) {
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$GLOBALS['dbi']->query($sql_query);
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$message = PMA_Message::success(
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__('Table %1$s has been altered successfully.')
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);
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$message->addParam($table);
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if ($GLOBALS['is_ajax_request'] == true) {
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$response = PMA_Response::getInstance();
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$response->addJSON(
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'message', PMA_Util::getMessage($message, $sql_query, 'success')
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);
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$response->addJSON('index_table', PMA_Index::getHtmlForIndexes($table, $db));
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} else {
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include 'tbl_structure.php';
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}
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exit;
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} else {
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$response = PMA_Response::getInstance();
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$response->isSuccess(false);
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$response->addJSON('message', $error);
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exit;
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}
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}
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/**
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* Function to get the sql query for index creation or edit
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*
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* @param string $db current db
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* @param string $table current table
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* @param PMA_Index $index current index
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* @param bool &$error whether error occurred or not
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*
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* @return string
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*/
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function PMA_getSqlQueryForIndexCreateOrEdit($db, $table, $index, &$error)
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{
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// $sql_query is the one displayed in the query box
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$sql_query = 'ALTER TABLE ' . PMA_Util::backquote($db)
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. '.' . PMA_Util::backquote($table);
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// Drops the old index
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if (! empty($_REQUEST['old_index'])) {
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if ($_REQUEST['old_index'] == 'PRIMARY') {
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$sql_query .= ' DROP PRIMARY KEY,';
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} else {
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$sql_query .= ' DROP INDEX '
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. PMA_Util::backquote($_REQUEST['old_index']) . ',';
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}
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} // end if
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// Builds the new one
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switch ($index->getChoice()) {
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case 'PRIMARY':
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if ($index->getName() == '') {
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$index->setName('PRIMARY');
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} elseif ($index->getName() != 'PRIMARY') {
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$error = PMA_Message::error(
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__('The name of the primary key must be "PRIMARY"!')
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);
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}
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$sql_query .= ' ADD PRIMARY KEY';
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break;
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case 'FULLTEXT':
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case 'UNIQUE':
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case 'INDEX':
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case 'SPATIAL':
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if ($index->getName() == 'PRIMARY') {
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$error = PMA_Message::error(__('Can\'t rename index to PRIMARY!'));
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}
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$sql_query .= ' ADD ' . $index->getChoice() . ' '
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. ($index->getName() ? PMA_Util::backquote($index->getName()) : '');
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break;
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} // end switch
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$index_fields = array();
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foreach ($index->getColumns() as $key => $column) {
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$index_fields[$key] = PMA_Util::backquote($column->getName());
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if ($column->getSubPart()) {
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$index_fields[$key] .= '(' . $column->getSubPart() . ')';
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}
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} // end while
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if (empty($index_fields)) {
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$error = PMA_Message::error(__('No index parts defined!'));
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} else {
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$sql_query .= ' (' . implode(', ', $index_fields) . ')';
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}
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$keyBlockSizes = $index->getKeyBlockSize();
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if (! empty($keyBlockSizes)) {
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$sql_query .= " KEY_BLOCK_SIZE = "
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. PMA_Util::sqlAddSlashes($keyBlockSizes);
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}
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// specifying index type is allowed only for primary, unique and index only
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$type = $index->getType();
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if ($index->getChoice() != 'SPATIAL'
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&& $index->getChoice() != 'FULLTEXT'
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&& in_array($type, PMA_Index::getIndexTypes())
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) {
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$sql_query .= ' USING ' . $type;
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}
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$parser = $index->getParser();
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if ($index->getChoice() == 'FULLTEXT' && ! empty($parser)) {
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$sql_query .= " WITH PARSER " . PMA_Util::sqlAddSlashes($parser);
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}
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$comment = $index->getComment();
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if (! empty($comment)) {
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$sql_query .= " COMMENT '" . PMA_Util::sqlAddSlashes($comment) . "'";
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}
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$sql_query .= ';';
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return $sql_query;
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}
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/**
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* Function to prepare the form values for index
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*
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* @param string $db current database
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* @param string $table current table
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*
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* @return PMA_Index
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*/
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function PMA_prepareFormValues($db, $table)
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{
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if (isset($_REQUEST['index'])) {
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if (is_array($_REQUEST['index'])) {
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// coming already from form
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$index = new PMA_Index($_REQUEST['index']);
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} else {
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$index = PMA_Index::singleton($db, $table, $_REQUEST['index']);
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}
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} else {
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$index = new PMA_Index;
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}
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return $index;
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}
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/**
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* Function to get the number of fields for the form
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*
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* @param PMA_Index $index index
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*
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* @return int
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*/
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function PMA_getNumberOfFieldsForForm($index)
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{
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if (isset($_REQUEST['index']) && is_array($_REQUEST['index'])) {
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// coming already from form
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$add_fields
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= isset($_REQUEST['index']['columns']['names'])?
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count($_REQUEST['index']['columns']['names'])
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- $index->getColumnCount():0;
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if (isset($_REQUEST['add_fields'])) {
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$add_fields += $_REQUEST['added_fields'];
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}
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} elseif (isset($_REQUEST['create_index'])) {
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$add_fields = $_REQUEST['added_fields'];
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} else {
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$add_fields = 0;
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}// end preparing form values
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return $add_fields;
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}
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/**
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* Function to get form parameters
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*
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* @param string $db current db
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* @param string $table current table
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*
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* @return array
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*/
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function PMA_getFormParameters($db, $table)
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{
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$form_params = array(
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'db' => $db,
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'table' => $table,
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);
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if (isset($_REQUEST['create_index'])) {
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$form_params['create_index'] = 1;
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} elseif (isset($_REQUEST['old_index'])) {
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$form_params['old_index'] = $_REQUEST['old_index'];
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} elseif (isset($_REQUEST['index'])) {
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$form_params['old_index'] = $_REQUEST['index'];
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}
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return $form_params;
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}
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/**
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* Function to get html for displaying the index form
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*
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* @param array $fields fields
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* @param PMA_Index $index index
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* @param array $form_params form parameters
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* @param int $add_fields number of fields in the form
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*
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* @return string
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*/
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function PMA_getHtmlForIndexForm($fields, $index, $form_params, $add_fields)
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{
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return PMA\Template::get('index_form')->render(
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array(
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'fields' => $fields,
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'index' => $index,
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'form_params' => $form_params,
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'add_fields' => $add_fields
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)
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);
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}
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?>
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