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126 lines
3.7 KiB
PHP
126 lines
3.7 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* hold PMA\libraries\SystemDatabase class
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*
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* @package PMA
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*/
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namespace PMA\libraries;
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require_once 'libraries/database_interface.inc.php';
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/**
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* Class SystemDatabase
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*
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* @package PMA
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*/
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class SystemDatabase
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{
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/**
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* @var DatabaseInterface
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*/
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protected $dbi;
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/**
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* Get instance of SystemDatabase
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*
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* @param DatabaseInterface $dbi Database interface for the system database
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*
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*/
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function __construct(DatabaseInterface $dbi)
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{
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$this->dbi = $dbi;
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}
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/**
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* Get existing data on transformations applied for
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* columns in a particular table
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*
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* @param string $db Database name looking for
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*
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* @return \mysqli_result Result of executed SQL query
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*/
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public function getExistingTransformationData($db)
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{
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$cfgRelation = \PMA_getRelationsParam();
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// Get the existing transformation details of the same database
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// from pma__column_info table
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$pma_transformation_sql = sprintf(
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"SELECT * FROM %s.%s WHERE `db_name` = '%s'",
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Util::backquote($cfgRelation['db']),
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Util::backquote($cfgRelation['column_info']),
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$GLOBALS['dbi']->escapeString($db)
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);
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return $this->dbi->tryQuery($pma_transformation_sql);
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}
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/**
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* Get SQL query for store new transformation details of a VIEW
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*
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* @param object $pma_transformation_data Result set of SQL execution
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* @param array $column_map Details of VIEW columns
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* @param string $view_name Name of the VIEW
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* @param string $db Database name of the VIEW
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*
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* @return string $new_transformations_sql SQL query for new transformations
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*/
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function getNewTransformationDataSql(
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$pma_transformation_data, $column_map, $view_name, $db
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) {
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$cfgRelation = \PMA_getRelationsParam();
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// Need to store new transformation details for VIEW
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$new_transformations_sql = sprintf(
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"INSERT INTO %s.%s ("
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. "`db_name`, `table_name`, `column_name`, "
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. "`comment`, `mimetype`, `transformation`, "
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. "`transformation_options`) VALUES",
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Util::backquote($cfgRelation['db']),
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Util::backquote($cfgRelation['column_info'])
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);
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$column_count = 0;
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$add_comma = false;
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while ($data_row = $this->dbi->fetchAssoc($pma_transformation_data)) {
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foreach ($column_map as $column) {
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if ($data_row['table_name'] != $column['table_name']
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|| $data_row['column_name'] != $column['refering_column']
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) {
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continue;
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}
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$new_transformations_sql .= sprintf(
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"%s ('%s', '%s', '%s', '%s', '%s', '%s', '%s')",
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$add_comma ? ', ' : '',
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$db,
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$view_name,
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isset($column['real_column'])
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? $column['real_column']
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: $column['refering_column'],
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$data_row['comment'],
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$data_row['mimetype'],
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$data_row['transformation'],
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$GLOBALS['dbi']->escapeString(
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$data_row['transformation_options']
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)
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);
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$add_comma = true;
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$column_count++;
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break;
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}
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if ($column_count == count($column_map)) {
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break;
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}
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}
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return ($column_count > 0) ? $new_transformations_sql : '';
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}
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}
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