123 lines
3.7 KiB
PHP
123 lines
3.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin;
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use mysqli_result;
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use function count;
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use function sprintf;
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class SystemDatabase
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{
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/** @var DatabaseInterface */
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protected $dbi;
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/** @var Relation */
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private $relation;
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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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public function __construct(DatabaseInterface $dbi)
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{
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$this->dbi = $dbi;
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$this->relation = new Relation($this->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 $db Database name looking for
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*
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* @return mysqli_result|false Result of executed SQL query
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*/
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public function getExistingTransformationData($db)
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{
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$cfgRelation = $this->relation->getRelationsParam();
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if (! $cfgRelation['mimework']) {
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return false;
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}
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// Get the existing transformation details of the same database
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// from pma__column_info table
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$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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$this->dbi->escapeString($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 $db Database name of the VIEW
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*
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* @return string SQL query for new transformations
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*/
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public function getNewTransformationDataSql(
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$pma_transformation_data,
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array $column_map,
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$view_name,
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$db
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) {
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$cfgRelation = $this->relation->getRelationsParam();
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// Need to store new transformation details for VIEW
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$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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$view_name,
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$column['real_column'] ?? $column['refering_column'],
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$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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