mirror of
https://github.com/cytopia/devilbox.git
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491 lines
18 KiB
PHP
491 lines
18 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Handles Database Search
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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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/**
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* Class to handle database search
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*
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* @package PhpMyAdmin
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*/
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class PMA_DbSearch
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{
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/**
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* Database name
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*
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* @access private
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* @var string
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*/
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private $_db;
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/**
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* Table Names
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*
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* @access private
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* @var array
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*/
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private $_tables_names_only;
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/**
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* Type of search
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*
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* @access private
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* @var array
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*/
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private $_searchTypes;
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/**
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* Already set search type
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*
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* @access private
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* @var integer
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*/
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private $_criteriaSearchType;
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/**
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* Already set search type's description
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*
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* @access private
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* @var string
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*/
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private $_searchTypeDescription;
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/**
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* Search string/regexp
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*
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* @access private
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* @var string
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*/
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private $_criteriaSearchString;
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/**
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* Criteria Tables to search in
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*
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* @access private
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* @var array
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*/
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private $_criteriaTables;
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/**
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* Restrict the search to this column
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*
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* @access private
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* @var string
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*/
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private $_criteriaColumnName;
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/**
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* Public Constructor
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*
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* @param string $db Database name
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*/
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public function __construct($db)
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{
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$this->_db = $db;
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// Sets criteria parameters
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$this->_setSearchParams();
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}
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/**
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* Sets search parameters
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*
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* @return void
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*/
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private function _setSearchParams()
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{
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$this->_tables_names_only = PMA_DBI_get_tables($this->_db);
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$this->_searchTypes = array(
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'1' => __('at least one of the words'),
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'2' => __('all words'),
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'3' => __('the exact phrase'),
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'4' => __('as regular expression'),
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);
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if (empty($_REQUEST['criteriaSearchType'])
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|| ! is_string($_REQUEST['criteriaSearchType'])
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|| ! array_key_exists($_REQUEST['criteriaSearchType'], $this->_searchTypes)
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) {
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$this->_criteriaSearchType = 1;
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unset($_REQUEST['submit_search']);
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} else {
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$this->_criteriaSearchType = (int) $_REQUEST['criteriaSearchType'];
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$this->_searchTypeDescription
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= $this->_searchTypes[$_REQUEST['criteriaSearchType']];
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}
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if (empty($_REQUEST['criteriaSearchString'])
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|| ! is_string($_REQUEST['criteriaSearchString'])
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) {
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$this->_criteriaSearchString = '';
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unset($_REQUEST['submit_search']);
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} else {
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$this->_criteriaSearchString = $_REQUEST['criteriaSearchString'];
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}
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$this->_criteriaTables = array();
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if (empty($_REQUEST['criteriaTables'])
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|| ! is_array($_REQUEST['criteriaTables'])
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) {
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unset($_REQUEST['submit_search']);
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} else {
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$this->_criteriaTables = array_intersect(
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$_REQUEST['criteriaTables'], $this->_tables_names_only
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);
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}
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if (empty($_REQUEST['criteriaColumnName'])
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|| ! is_string($_REQUEST['criteriaColumnName'])
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) {
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unset($this->_criteriaColumnName);
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} else {
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$this->_criteriaColumnName = PMA_Util::sqlAddSlashes(
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$_REQUEST['criteriaColumnName'], true
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);
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}
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}
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/**
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* Builds the SQL search query
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*
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* @param string $table The table name
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*
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* @return array 3 SQL querys (for count, display and delete results)
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*
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* @todo can we make use of fulltextsearch IN BOOLEAN MODE for this?
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* PMA_backquote
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* PMA_DBI_free_result
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* PMA_DBI_fetch_assoc
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* $GLOBALS['db']
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* explode
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* count
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* strlen
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*/
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private function _getSearchSqls($table)
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{
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// Statement types
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$sqlstr_select = 'SELECT';
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$sqlstr_delete = 'DELETE';
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// Table to use
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$sqlstr_from = ' FROM '
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. PMA_Util::backquote($GLOBALS['db']) . '.'
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. PMA_Util::backquote($table);
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// Gets where clause for the query
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$where_clause = $this->_getWhereClause($table);
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// Builds complete queries
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$sql['select_columns'] = $sqlstr_select . ' * ' . $sqlstr_from . $where_clause;
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// here, I think we need to still use the COUNT clause, even for
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// VIEWs, anyway we have a WHERE clause that should limit results
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$sql['select_count'] = $sqlstr_select . ' COUNT(*) AS `count`'
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. $sqlstr_from . $where_clause;
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$sql['delete'] = $sqlstr_delete . $sqlstr_from . $where_clause;
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return $sql;
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}
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/**
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* Provides where clause for bulding SQL query
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*
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* @param string $table The table name
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*
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* @return string The generated where clause
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*/
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private function _getWhereClause($table)
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{
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$where_clause = '';
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// Columns to select
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$allColumns = PMA_DBI_get_columns($GLOBALS['db'], $table);
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$likeClauses = array();
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// Based on search type, decide like/regex & '%'/''
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$like_or_regex = (($this->_criteriaSearchType == 4) ? 'REGEXP' : 'LIKE');
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$automatic_wildcard = (($this->_criteriaSearchType < 3) ? '%' : '');
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// For "as regular expression" (search option 4), LIKE won't be used
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// Usage example: If user is seaching for a literal $ in a regexp search,
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// he should enter \$ as the value.
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$this->_criteriaSearchString = PMA_Util::sqlAddSlashes(
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$this->_criteriaSearchString,
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($this->_criteriaSearchType == 4 ? false : true)
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);
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// Extract search words or pattern
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$search_words = (($this->_criteriaSearchType > 2)
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? array($this->_criteriaSearchString)
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: explode(' ', $this->_criteriaSearchString));
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foreach ($search_words as $search_word) {
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// Eliminates empty values
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if (strlen($search_word) === 0) {
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continue;
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}
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$likeClausesPerColumn = array();
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// for each column in the table
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foreach ($allColumns as $column) {
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if (! isset($this->_criteriaColumnName)
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|| strlen($this->_criteriaColumnName) == 0
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|| $column['Field'] == $this->_criteriaColumnName
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) {
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// Drizzle has no CONVERT and all text columns are UTF-8
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$column = ((PMA_DRIZZLE)
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? PMA_Util::backquote($column['Field'])
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: 'CONVERT(' . PMA_Util::backquote($column['Field'])
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. ' USING utf8)');
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$likeClausesPerColumn[] = $column . ' ' . $like_or_regex . ' '
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. "'"
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. $automatic_wildcard . $search_word . $automatic_wildcard
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. "'";
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}
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} // end for
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if (count($likeClausesPerColumn) > 0) {
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$likeClauses[] = implode(' OR ', $likeClausesPerColumn);
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}
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} // end for
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// Use 'OR' if 'at least one word' is to be searched, else use 'AND'
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$implode_str = ($this->_criteriaSearchType == 1 ? ' OR ' : ' AND ');
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if ( empty($likeClauses)) {
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// this could happen when the "inside column" does not exist
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// in any selected tables
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$where_clause = ' WHERE FALSE';
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} else {
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$where_clause = ' WHERE ('
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. implode(') ' . $implode_str . ' (', $likeClauses)
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. ')';
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}
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return $where_clause;
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}
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/**
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* Displays database search results
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*
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* @return string HTML for search results
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*/
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public function getSearchResults()
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{
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$html_output = '';
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// Displays search string
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$html_output .= '<br />'
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. '<table class="data">'
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. '<caption class="tblHeaders">'
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. sprintf(
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__('Search results for "<i>%s</i>" %s:'),
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htmlspecialchars($this->_criteriaSearchString),
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$this->_searchTypeDescription
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)
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. '</caption>';
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$num_search_result_total = 0;
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$odd_row = true;
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// For each table selected as search criteria
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foreach ($this->_criteriaTables as $each_table) {
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// Gets the SQL statements
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$newsearchsqls = $this->_getSearchSqls($each_table);
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// Executes the "COUNT" statement
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$res_cnt = intval(PMA_DBI_fetch_value($newsearchsqls['select_count']));
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$num_search_result_total += $res_cnt;
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// Gets the result row's HTML for a table
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$html_output .= $this->_getResultsRow(
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$each_table, $newsearchsqls, $odd_row, $res_cnt
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);
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$odd_row = ! $odd_row;
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} // end for
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$html_output .= '</table>';
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// Displays total number of matches
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if (count($this->_criteriaTables) > 1) {
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$html_output .= '<p>';
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$html_output .= sprintf(
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_ngettext(
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'<b>Total:</b> <i>%s</i> match',
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'<b>Total:</b> <i>%s</i> matches',
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$num_search_result_total
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),
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$num_search_result_total
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);
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$html_output .= '</p>';
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}
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return $html_output;
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}
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/**
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* Provides search results row with browse/delete links.
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* (for a table)
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*
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* @param string $each_table One of the tables on which search was performed
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* @param array $newsearchsqls Contains SQL queries
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* @param bool $odd_row For displaying contrasting table rows
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* @param integer $res_cnt Number of results found
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*
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* @return string HTML row
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*/
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private function _getResultsRow($each_table, $newsearchsqls, $odd_row, $res_cnt)
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{
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$this_url_params = array(
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'db' => $GLOBALS['db'],
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'table' => $each_table,
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'goto' => 'db_sql.php',
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'pos' => 0,
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'is_js_confirmed' => 0,
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);
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// Start forming search results row
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$html_output = '<tr class="noclick ' . ($odd_row ? 'odd' : 'even') . '">';
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// Displays results count for a table
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$html_output .= '<td>';
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$html_output .= sprintf(
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_ngettext(
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'%1$s match in <strong>%2$s</strong>',
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'%1$s matches in <strong>%2$s</strong>', $res_cnt
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),
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$res_cnt, htmlspecialchars($each_table)
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);
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$html_output .= '</td>';
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// Displays browse/delete link if result count > 0
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if ($res_cnt > 0) {
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$this_url_params['sql_query'] = $newsearchsqls['select_columns'];
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$browse_result_path = 'sql.php' . PMA_generate_common_url($this_url_params);
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$html_output .= '<td><a name="browse_search" href="'
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. $browse_result_path . '" onclick="loadResult(\''
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. $browse_result_path . '\',\''
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. PMA_escapeJsString(htmlspecialchars($each_table)) . '\',\''
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. PMA_generate_common_url($GLOBALS['db'], $each_table) . '\''
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. ');return false;" >'
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. __('Browse') . '</a></td>';
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$this_url_params['sql_query'] = $newsearchsqls['delete'];
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$delete_result_path = 'sql.php' . PMA_generate_common_url($this_url_params);
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$html_output .= '<td><a name="delete_search" href="'
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. $delete_result_path . '" onclick="deleteResult(\''
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. $delete_result_path . '\' , \''
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. PMA_escapeJsString(sprintf(
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__('Delete the matches for the %s table?'),
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htmlspecialchars($each_table)
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))
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. '\');return false;">'
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. __('Delete') . '</a></td>';
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} else {
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$html_output .= '<td> </td>'
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.'<td> </td>';
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}// end if else
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$html_output .= '</tr>';
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return $html_output;
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}
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/**
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* Provides the main search form's html
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*
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* @param array $url_params URL parameters
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*
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* @return string HTML for selection form
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*/
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public function getSelectionForm($url_params)
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{
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$html_output = '<a id="db_search"></a>';
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$html_output .= '<form id="db_search_form"'
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. ' class="ajax"'
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. ' method="post" action="db_search.php" name="db_search">';
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$html_output .= PMA_generate_common_hidden_inputs($GLOBALS['db']);
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$html_output .= '<fieldset>';
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// set legend caption
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$html_output .= '<legend>' . __('Search in database') . '</legend>';
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$html_output .= '<table class="formlayout">';
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// inputbox for search phrase
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$html_output .= '<tr>';
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$html_output .= '<td>' . __('Words or values to search for (wildcard: "%"):')
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. '</td>';
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$html_output .= '<td><input type="text"'
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. ' name="criteriaSearchString" size="60"'
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. ' value="' . htmlspecialchars($this->_criteriaSearchString) . '" />';
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$html_output .= '</td>';
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$html_output .= '</tr>';
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// choices for types of search
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$html_output .= '<tr>';
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$html_output .= '<td class="right vtop">' . __('Find:') . '</td>';
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$html_output .= '<td>';
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$choices = array(
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'1' => __('at least one of the words')
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. PMA_Util::showHint(
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__('Words are separated by a space character (" ").')
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),
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'2' => __('all words')
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. PMA_Util::showHint(
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__('Words are separated by a space character (" ").')
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),
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'3' => __('the exact phrase'),
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'4' => __('as regular expression') . ' '
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. PMA_Util::showMySQLDocu('Regexp', 'Regexp')
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);
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// 4th parameter set to true to add line breaks
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// 5th parameter set to false to avoid htmlspecialchars() escaping
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// in the label since we have some HTML in some labels
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$html_output .= PMA_Util::getRadioFields(
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'criteriaSearchType', $choices, $this->_criteriaSearchType, true, false
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);
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$html_output .= '</td></tr>';
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// displays table names as select options
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$html_output .= '<tr>';
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$html_output .= '<td class="right vtop">' . __('Inside tables:') . '</td>';
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$html_output .= '<td rowspan="2">';
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$html_output .= '<select name="criteriaTables[]" size="6" multiple="multiple">';
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foreach ($this->_tables_names_only as $each_table) {
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if (in_array($each_table, $this->_criteriaTables)) {
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$is_selected = ' selected="selected"';
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} else {
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$is_selected = '';
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}
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$html_output .= '<option value="' . htmlspecialchars($each_table) . '"'
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. $is_selected . '>'
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. str_replace(' ', ' ', htmlspecialchars($each_table))
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. '</option>';
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} // end for
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$html_output .= '</select>';
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$html_output .= '</td></tr>';
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// Displays 'select all' and 'unselect all' links
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$alter_select = '<a href="#" '
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. 'onclick="setSelectOptions(\'db_search\', \'criteriaTables[]\', true); return false;">'
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. __('Select All') . '</a> / ';
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$alter_select .= '<a href="#" '
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. 'onclick="setSelectOptions(\'db_search\', \'criteriaTables[]\', false); return false;">'
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. __('Unselect All') . '</a>';
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$html_output .= '<tr><td class="right vbottom">' . $alter_select . '</td></tr>';
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// Inputbox for column name entry
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$html_output .= '<tr>';
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$html_output .= '<td class="right">' . __('Inside column:') . '</td>';
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$html_output .= '<td><input type="text" name="criteriaColumnName" size="60"'
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. 'value="'
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. (! empty($this->_criteriaColumnName) ? htmlspecialchars($this->_criteriaColumnName) : '')
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. '" /></td>';
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$html_output .= '</tr>';
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$html_output .= '</table>';
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$html_output .= '</fieldset>';
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$html_output .= '<fieldset class="tblFooters">';
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$html_output .= '<input type="submit" name="submit_search" value="'
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. __('Go') . '" id="buttonGo" />';
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$html_output .= '</fieldset>';
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$html_output .= '</form>';
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$html_output .= $this->_getResultDivs();
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return $html_output;
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}
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/**
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* Provides div tags for browsing search results and sql query form.
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*
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* @return string div tags
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*/
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private function _getResultDivs()
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{
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$html_output = '<!-- These two table-image and table-link elements display'
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. ' the table name in browse search results -->';
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$html_output .= '<div id="table-info">';
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$html_output .= '<a class="item" id="table-link" ></a>';
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$html_output .= '</div>';
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// div for browsing results
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$html_output .= '<div id="browse-results">';
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$html_output .= '<!-- this browse-results div is used to load the browse'
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. ' and delete results in the db search -->';
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$html_output .= '</div>';
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$html_output .= '<br class="clearfloat" />';
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$html_output .= '<div id="sqlqueryform">';
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$html_output .= '<!-- this sqlqueryform div is used to load the delete form in'
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. ' the db search -->';
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$html_output .= '</div>';
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$html_output .= '<!-- toggle query box link-->';
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$html_output .= '<a id="togglequerybox"></a>';
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return $html_output;
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}
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}
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