392 lines
12 KiB
PHP
392 lines
12 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* query by example the whole database
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*
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* @package PhpMyAdmin
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*/
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/**
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* requirements
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*/
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require_once 'libraries/common.inc.php';
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require_once 'libraries/db_qbe.lib.php';
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/**
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* Sets globals from $_POST
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*/
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$post_params = array(
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'criteriaColumn',
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'criteriaShow',
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'criteriaSort'
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);
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foreach ($post_params as $one_post_param) {
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if (isset($_POST[$one_post_param])) {
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$GLOBALS[$one_post_param] = $_POST[$one_post_param];
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}
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}
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/**
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* Sets globals from $_POST patterns, for Or* variables
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* (additional criteria lines)
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*/
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$post_patterns = array(
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'/^Or/i'
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);
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foreach (array_keys($_POST) as $post_key) {
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foreach ($post_patterns as $one_post_pattern) {
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if (preg_match($one_post_pattern, $post_key)) {
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$GLOBALS[$post_key] = $_POST[$post_key];
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}
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}
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}
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/**
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* Initialize some more global variables
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*/
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$GLOBALS['curField'] = array();
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$GLOBALS['curSort'] = array();
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$GLOBALS['curShow'] = array();
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$GLOBALS['curCriteria'] = array();
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$GLOBALS['curAndOrRow'] = array();
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$GLOBALS['curAndOrCol'] = array();
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/**
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* Gets the relation settings
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*/
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$cfgRelation = PMA_getRelationsParam();
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$common_functions = PMA_CommonFunctions::getInstance();
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/**
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* A query has been submitted -> (maybe) execute it
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*/
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$message_to_display = false;
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if (isset($_REQUEST['submit_sql']) && ! empty($sql_query)) {
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if (! preg_match('@^SELECT@i', $sql_query)) {
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$message_to_display = true;
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} else {
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$goto = 'db_sql.php';
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include 'sql.php';
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exit;
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}
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}
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$sub_part = '_qbe';
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require 'libraries/db_common.inc.php';
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$url_query .= '&goto=db_qbe.php';
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$url_params['goto'] = 'db_qbe.php';
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require 'libraries/db_info.inc.php';
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if ($message_to_display) {
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PMA_Message::error(__('You have to choose at least one column to display'))->display();
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}
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unset($message_to_display);
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/**
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* Initialize some variables
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*/
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$criteriaColumnCount = PMA_ifSetOr($_REQUEST['criteriaColumnCount'], 3, 'numeric');
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$criteriaColumnAdd = PMA_ifSetOr($_REQUEST['criteriaColumnAdd'], 0, 'numeric');
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$criteriaRowAdd = PMA_ifSetOr($_REQUEST['criteriaRowAdd'], 0, 'numeric');
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$rows = PMA_ifSetOr($_REQUEST['rows'], 0, 'numeric');
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$criteriaColumnInsert = PMA_ifSetOr($_REQUEST['criteriaColumnInsert'], null, 'array');
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$criteriaColumnDelete = PMA_ifSetOr($_REQUEST['criteriaColumnDelete'], null, 'array');
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$prev_criteria = isset($_REQUEST['prev_criteria'])
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? $_REQUEST['prev_criteria']
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: array();
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$criteria = isset($_REQUEST['criteria'])
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? $_REQUEST['criteria']
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: array_fill(0, $criteriaColumnCount, '');
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$criteriaRowInsert = isset($_REQUEST['criteriaRowInsert'])
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? $_REQUEST['criteriaRowInsert']
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: array_fill(0, $criteriaColumnCount, '');
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$criteriaRowDelete = isset($_REQUEST['criteriaRowDelete'])
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? $_REQUEST['criteriaRowDelete']
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: array_fill(0, $criteriaColumnCount, '');
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$criteriaAndOrRow = isset($_REQUEST['criteriaAndOrRow'])
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? $_REQUEST['criteriaAndOrRow']
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: array_fill(0, $criteriaColumnCount, '');
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$criteriaAndOrColumn = isset($_REQUEST['criteriaAndOrColumn'])
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? $_REQUEST['criteriaAndOrColumn']
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: array_fill(0, $criteriaColumnCount, '');
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// minimum width
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$form_column_width = 12;
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$criteria_column_count = max($criteriaColumnCount + $criteriaColumnAdd, 0);
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$criteria_row_count = max($rows + $criteriaRowAdd, 0);
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// The tables list sent by a previously submitted form
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if (PMA_isValid($_REQUEST['TableList'], 'array')) {
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foreach ($_REQUEST['TableList'] as $each_table) {
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$tbl_names[$each_table] = ' selected="selected"';
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}
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} // end if
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// this was a work in progress, deactivated for now
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//$columns = PMA_DBI_get_columns_full($GLOBALS['db']);
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//$tables = PMA_DBI_get_columns_full($GLOBALS['db']);
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/**
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* Prepares the form
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*/
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$tbl_result = PMA_DBI_query(
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'SHOW TABLES FROM ' . $common_functions->backquote($db) . ';',
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null, PMA_DBI_QUERY_STORE
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);
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$tbl_result_cnt = PMA_DBI_num_rows($tbl_result);
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if (0 == $tbl_result_cnt) {
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PMA_Message::error(__('No tables found in database.'))->display();
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exit;
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}
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// The tables list gets from MySQL
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while (list($tbl) = PMA_DBI_fetch_row($tbl_result)) {
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$fld_results = PMA_DBI_get_columns($db, $tbl);
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if (empty($tbl_names[$tbl]) && ! empty($_REQUEST['TableList'])) {
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$tbl_names[$tbl] = '';
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} else {
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$tbl_names[$tbl] = ' selected="selected"';
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} // end if
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// The fields list per selected tables
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if ($tbl_names[$tbl] == ' selected="selected"') {
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$each_table = $common_functions->backquote($tbl);
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$fld[] = $each_table . '.*';
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foreach ($fld_results as $each_field) {
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$each_field = $each_table . '.' . $common_functions->backquote($each_field['Field']);
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$fld[] = $each_field;
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// increase the width if necessary
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$form_column_width = max(strlen($each_field), $form_column_width);
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} // end foreach
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} // end if
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} // end while
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PMA_DBI_free_result($tbl_result);
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// largest width found
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$realwidth = $form_column_width . 'ex';
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/**
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* Displays the Query by example form
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*/
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if ($cfgRelation['designerwork']) {
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$url = 'pmd_general.php' . PMA_generate_common_url(
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array_merge(
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$url_params,
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array('query' => 1)
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)
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);
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PMA_Message::notice(
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sprintf(
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__('Switch to %svisual builder%s'),
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'<a href="' . $url . '">',
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'</a>'
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)
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)->display();
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}
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?>
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<form action="db_qbe.php" method="post">
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<fieldset>
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<table class="data" style="width: 100%;">
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<?php
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echo PMA_dbQbegetColumnNamesRow(
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$criteria_column_count, $fld, $criteriaColumnInsert, $criteriaColumnDelete
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);
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echo PMA_dbQbegetSortRow(
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$criteria_column_count, $realwidth, $criteriaColumnInsert, $criteriaColumnDelete
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);
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echo PMA_dbQbegetShowRow(
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$criteria_column_count, $criteriaColumnInsert, $criteriaColumnDelete
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);
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echo PMA_dbQbegetCriteriaInputboxRow(
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$criteria_column_count, $realwidth, $criteria, $prev_criteria, $criteriaColumnInsert, $criteriaColumnDelete
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);
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echo PMA_dbQbeGetInsDelAndOrCriteriaRows($criteria_row_count, $criteria_column_count, $realwidth,
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$criteriaColumnInsert, $criteriaColumnDelete, $criteriaAndOrRow
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);
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echo PMA_dbQbeGetModifyColumnsRow(
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$criteria_column_count, $criteriaAndOrColumn, $criteriaColumnInsert, $criteriaColumnDelete
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);
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?>
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</table>
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<?php
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$new_row_count--;
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$url_params['db'] = $db;
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$url_params['criteriaColumnCount'] = $new_column_count;
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$url_params['rows'] = $new_row_count;
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echo PMA_generate_common_hidden_inputs($url_params);
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?>
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</fieldset>
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<?php
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echo PMA_dbQbeGetTableFooters();
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echo PMA_dbQbeGetTablesList($tbl_names);
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?>
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<div class="floatleft">
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<fieldset>
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<legend><?php echo sprintf(__('SQL query on database <b>%s</b>:'), $common_functions->getDbLink($db)); ?>
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</legend>
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<textarea cols="80" name="sql_query" id="textSqlquery"
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rows="<?php echo ($numTableListOptions > 30) ? '15' : '7'; ?>"
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dir="<?php echo $text_dir; ?>">
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<?php
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// 1. SELECT
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echo PMA_dbQbeGetSelectClause($criteria_column_count);
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// 2. FROM
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// Create LEFT JOINS out of Relations
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// If we can use Relations we could make some left joins.
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// First find out if relations are available in this database.
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// First we need the really needed Tables - those in TableList might still be
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// all Tables.
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if (isset($criteriaColumn) && count($criteriaColumn) > 0) {
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// Initialize some variables
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$tab_all = array();
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$col_all = array();
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$tab_wher = array();
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$tab_know = array();
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$tab_left = array();
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$col_where = array();
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$fromclause = '';
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// We only start this if we have fields, otherwise it would be dumb
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foreach ($criteriaColumn as $value) {
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$parts = explode('.', $value);
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if (! empty($parts[0]) && ! empty($parts[1])) {
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$tab_raw = $parts[0];
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$tab = str_replace('`', '', $tab_raw);
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$tab_all[$tab] = $tab;
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$col_raw = $parts[1];
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$col_all[] = $tab . '.' . str_replace('`', '', $col_raw);
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}
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} // end while
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// Check 'where' clauses
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if ($cfgRelation['relwork'] && count($tab_all) > 0) {
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// Now we need all tables that we have in the where clause
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$crit_cnt = count($criteria);
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for ($column_index = 0; $column_index < $crit_cnt; $column_index++) {
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$curr_tab = explode('.', $criteriaColumn[$column_index]);
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if (! empty($curr_tab[0]) && ! empty($curr_tab[1])) {
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$tab_raw = $curr_tab[0];
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$tab = str_replace('`', '', $tab_raw);
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$col_raw = $curr_tab[1];
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$col1 = str_replace('`', '', $col_raw);
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$col1 = $tab . '.' . $col1;
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// Now we know that our array has the same numbers as $criteria
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// we can check which of our columns has a where clause
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if (! empty($criteria[$column_index])) {
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if (substr($criteria[$column_index], 0, 1) == '=' || stristr($criteria[$column_index], 'is')) {
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$col_where[$col1] = $col1;
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$tab_wher[$tab] = $tab;
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}
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} // end if
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} // end if
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} // end for
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// Cleans temp vars w/o further use
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unset($tab_raw);
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unset($col_raw);
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unset($col1);
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if (count($tab_wher) == 1) {
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// If there is exactly one column that has a decent where-clause
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// we will just use this
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$master = key($tab_wher);
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} else {
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// Now let's find out which of the tables has an index
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// (When the control user is the same as the normal user
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// because he is using one of his databases as pmadb,
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// the last db selected is not always the one where we need to work)
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$col_cand = PMA_dbQbeGetLeftJoinColumnCandidates(
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$db, $tab_all, $col_all, $col_where
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);
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// If our array of candidates has more than one member we'll just
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// find the smallest table.
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// Of course the actual query would be faster if we check for
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// the Criteria which gives the smallest result set in its table,
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// but it would take too much time to check this
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if (count($col_cand) > 1) {
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// Of course we only want to check each table once
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$checked_tables = $col_cand;
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foreach ($col_cand as $tab) {
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if ($checked_tables[$tab] != 1) {
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$tsize[$tab] = PMA_Table::countRecords($db, $tab, false);
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$checked_tables[$tab] = 1;
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}
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$csize[$tab] = $tsize[$tab];
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}
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asort($csize);
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reset($csize);
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$master = key($csize); // Smallest
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} else {
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reset($col_cand);
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$master = current($col_cand); // Only one single candidate
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}
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} // end if (exactly one where clause)
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$tab_left = $tab_all;
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unset($tab_left[$master]);
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$tab_know[$master] = $master;
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$run = 0;
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$emerg = '';
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while (count($tab_left) > 0) {
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if ($run % 2 == 0) {
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PMA_getRelatives('master');
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} else {
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PMA_getRelatives('foreign');
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}
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$run++;
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if ($run > 5) {
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foreach ($tab_left as $tab) {
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$emerg .= ', ' . $common_functions->backquote($tab);
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unset($tab_left[$tab]);
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}
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}
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} // end while
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$qry_from = $common_functions->backquote($master) . $emerg . $fromclause;
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} // end if ($cfgRelation['relwork'] && count($tab_all) > 0)
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} // end count($criteriaColumn) > 0
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// In case relations are not defined, just generate the FROM clause
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// from the list of tables, however we don't generate any JOIN
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if (empty($qry_from) && isset($tab_all)) {
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$qry_from = implode(', ', $tab_all);
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}
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// Now let's see what we got
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if (! empty($qry_from)) {
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echo 'FROM ' . htmlspecialchars($qry_from) . "\n";
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}
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// 3. WHERE
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echo PMA_dbQbeGetWhereClause($criteria_column_count, $criteria_row_count);
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// 4. ORDER BY
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echo PMA_dbQbeGetOrderByClause($criteria_column_count);
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?>
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</textarea>
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</fieldset>
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<fieldset class="tblFooters">
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<input type="submit" name="submit_sql" value="<?php echo __('Submit Query'); ?>" />
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</fieldset>
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</div>
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</form>
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