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| DatabaseList.php | |||||
| Designer.php | |||||
| Events.php | |||||
| MultiTableQuery.php | |||||
| Qbe.php | |||||
| Routines.php | |||||
| Search.php | |||||
| Triggers.php |
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<?php
/**
* Handles DB QBE search
*/
declare(strict_types=1);
namespace PhpMyAdmin\Database;
use PhpMyAdmin\ConfigStorage\Relation;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Message;
use PhpMyAdmin\SavedSearches;
use PhpMyAdmin\Table;
use PhpMyAdmin\Template;
use PhpMyAdmin\Util;
use function __;
use function array_diff;
use function array_fill;
use function array_keys;
use function array_map;
use function array_multisort;
use function count;
use function explode;
use function htmlspecialchars;
use function implode;
use function in_array;
use function is_array;
use function is_numeric;
use function key;
use function max;
use function mb_strlen;
use function mb_strtoupper;
use function mb_substr;
use function min;
use function reset;
use function str_replace;
use function stripos;
use function strlen;
/**
* Class to handle database QBE search
*/
class Qbe
{
/**
* Database name
*
* @var string
*/
private $db;
/**
* Table Names (selected/non-selected)
*
* @var array
*/
private $criteriaTables;
/**
* Column Names
*
* @var array
*/
private $columnNames;
/**
* Number of columns
*
* @var int
*/
private $criteriaColumnCount;
/**
* Number of Rows
*
* @var int
*/
private $criteriaRowCount;
/**
* Whether to insert a new column
*
* @var array|null
*/
private $criteriaColumnInsert;
/**
* Whether to delete a column
*
* @var array|null
*/
private $criteriaColumnDelete;
/**
* Whether to insert a new row
*
* @var array
*/
private $criteriaRowInsert;
/**
* Whether to delete a row
*
* @var array
*/
private $criteriaRowDelete;
/**
* Already set criteria values
*
* @var array
*/
private $criteria;
/**
* Previously set criteria values
*
* @var array
*/
private $prevCriteria;
/**
* AND/OR relation b/w criteria columns
*
* @var array
*/
private $criteriaAndOrColumn;
/**
* AND/OR relation b/w criteria rows
*
* @var array
*/
private $criteriaAndOrRow;
/**
* Large width of a column
*
* @var string
*/
private $realwidth;
/**
* Minimum width of a column
*
* @var int
*/
private $formColumnWidth;
/**
* Selected columns in the form
*
* @var array
*/
private $formColumns;
/**
* Entered aliases in the form
*
* @var array
*/
private $formAliases;
/**
* Chosen sort options in the form
*
* @var array
*/
private $formSorts;
/**
* Chosen sort orders in the form
*
* @var array
*/
private $formSortOrders;
/**
* Show checkboxes in the form
*
* @var array
*/
private $formShows;
/**
* Entered criteria values in the form
*
* @var array
*/
private $formCriterions;
/**
* AND/OR column radio buttons in the form
*
* @var array
*/
private $formAndOrCols;
/**
* AND/OR row radio buttons in the form
*
* @var array
*/
private $formAndOrRows;
/**
* New column count in case of add/delete
*
* @var int
*/
private $newColumnCount;
/**
* New row count in case of add/delete
*
* @var int
*/
private $newRowCount;
/**
* List of saved searches
*
* @var array
*/
private $savedSearchList = null;
/**
* Current search
*
* @var SavedSearches|null
*/
private $currentSearch = null;
/** @var Relation */
private $relation;
/** @var DatabaseInterface */
public $dbi;
/** @var Template */
public $template;
/**
* @param Relation $relation Relation object
* @param Template $template Template object
* @param DatabaseInterface $dbi DatabaseInterface object
* @param string $dbname Database name
* @param array $savedSearchList List of saved searches
* @param SavedSearches|null $currentSearch Current search id
*/
public function __construct(
Relation $relation,
Template $template,
$dbi,
$dbname,
array $savedSearchList = [],
$currentSearch = null
) {
$this->db = $dbname;
$this->savedSearchList = $savedSearchList;
$this->currentSearch = $currentSearch;
$this->dbi = $dbi;
$this->relation = $relation;
$this->template = $template;
$this->loadCriterias();
// Sets criteria parameters
$this->setSearchParams();
$this->setCriteriaTablesAndColumns();
}
/**
* Initialize criterias
*
* @return static
*/
private function loadCriterias()
{
if ($this->currentSearch === null || $this->currentSearch->getCriterias() === null) {
return $this;
}
$criterias = $this->currentSearch->getCriterias();
$_POST = $criterias + $_POST;
return $this;
}
/**
* Getter for current search
*
* @return SavedSearches|null
*/
private function getCurrentSearch()
{
return $this->currentSearch;
}
/**
* Sets search parameters
*/
private function setSearchParams(): void
{
$criteriaColumnCount = $this->initializeCriteriasCount();
$this->criteriaColumnInsert = isset($_POST['criteriaColumnInsert']) && is_array($_POST['criteriaColumnInsert'])
? $_POST['criteriaColumnInsert']
: null;
$this->criteriaColumnDelete = isset($_POST['criteriaColumnDelete']) && is_array($_POST['criteriaColumnDelete'])
? $_POST['criteriaColumnDelete']
: null;
$this->prevCriteria = $_POST['prev_criteria'] ?? [];
$this->criteria = $_POST['criteria'] ?? array_fill(0, $criteriaColumnCount, '');
$this->criteriaRowInsert = $_POST['criteriaRowInsert'] ?? array_fill(0, $criteriaColumnCount, '');
$this->criteriaRowDelete = $_POST['criteriaRowDelete'] ?? array_fill(0, $criteriaColumnCount, '');
$this->criteriaAndOrRow = $_POST['criteriaAndOrRow'] ?? array_fill(0, $criteriaColumnCount, '');
$this->criteriaAndOrColumn = $_POST['criteriaAndOrColumn'] ?? array_fill(0, $criteriaColumnCount, '');
// sets minimum width
$this->formColumnWidth = 12;
$this->formColumns = [];
$this->formSorts = [];
$this->formShows = [];
$this->formCriterions = [];
$this->formAndOrRows = [];
$this->formAndOrCols = [];
}
/**
* Sets criteria tables and columns
*/
private function setCriteriaTablesAndColumns(): void
{
// The tables list sent by a previously submitted form
if (isset($_POST['TableList']) && is_array($_POST['TableList'])) {
foreach ($_POST['TableList'] as $eachTable) {
$this->criteriaTables[$eachTable] = ' selected="selected"';
}
}
$allTables = $this->dbi->query('SHOW TABLES FROM ' . Util::backquote($this->db) . ';');
$allTablesCount = $allTables->numRows();
if ($allTablesCount == 0) {
echo Message::error(__('No tables found in database.'))->getDisplay();
exit;
}
// The tables list gets from MySQL
foreach ($allTables->fetchAllColumn() as $table) {
$columns = $this->dbi->getColumns($this->db, $table);
if (empty($this->criteriaTables[$table]) && ! empty($_POST['TableList'])) {
$this->criteriaTables[$table] = '';
} else {
$this->criteriaTables[$table] = ' selected="selected"';
}
// The fields list per selected tables
if ($this->criteriaTables[$table] !== ' selected="selected"') {
continue;
}
$eachTable = Util::backquote($table);
$this->columnNames[] = $eachTable . '.*';
foreach ($columns as $eachColumn) {
$eachColumn = $eachTable . '.'
. Util::backquote($eachColumn['Field']);
$this->columnNames[] = $eachColumn;
// increase the width if necessary
$this->formColumnWidth = max(
mb_strlen($eachColumn),
$this->formColumnWidth
);
}
}
// sets the largest width found
$this->realwidth = $this->formColumnWidth . 'ex';
}
/**
* Provides select options list containing column names
*
* @param int $columnNumber Column Number (0,1,2) or more
* @param string $selected Selected criteria column name
*
* @return string HTML for select options
*/
private function showColumnSelectCell($columnNumber, $selected = '')
{
return $this->template->render('database/qbe/column_select_cell', [
'column_number' => $columnNumber,
'column_names' => $this->columnNames,
'selected' => $selected,
]);
}
/**
* Provides select options list containing sort options (ASC/DESC)
*
* @param int $columnNumber Column Number (0,1,2) or more
* @param string $selected Selected criteria 'ASC' or 'DESC'
*
* @return string HTML for select options
*/
private function getSortSelectCell(
$columnNumber,
$selected = ''
) {
return $this->template->render('database/qbe/sort_select_cell', [
'real_width' => $this->realwidth,
'column_number' => $columnNumber,
'selected' => $selected,
]);
}
/**
* Provides select options list containing sort order
*
* @param int $columnNumber Column Number (0,1,2) or more
* @param int $sortOrder Sort order
*
* @return string HTML for select options
*/
private function getSortOrderSelectCell($columnNumber, $sortOrder)
{
$totalColumnCount = $this->getNewColumnCount();
return $this->template->render('database/qbe/sort_order_select_cell', [
'total_column_count' => $totalColumnCount,
'column_number' => $columnNumber,
'sort_order' => $sortOrder,
]);
}
/**
* Returns the new column count after adding and removing columns as instructed
*
* @return int new column count
*/
private function getNewColumnCount()
{
$totalColumnCount = $this->criteriaColumnCount;
if (! empty($this->criteriaColumnInsert)) {
$totalColumnCount += count($this->criteriaColumnInsert);
}
if (! empty($this->criteriaColumnDelete)) {
$totalColumnCount -= count($this->criteriaColumnDelete);
}
return $totalColumnCount;
}
/**
* Provides search form's row containing column select options
*
* @return string HTML for search table's row
*/
private function getColumnNamesRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
isset($this->criteriaColumnInsert[$columnIndex])
&& $this->criteriaColumnInsert[$columnIndex] === 'on'
) {
$htmlOutput .= $this->showColumnSelectCell($newColumnCount);
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$columnIndex])
&& $this->criteriaColumnDelete[$columnIndex] === 'on'
) {
continue;
}
$selected = '';
if (isset($_POST['criteriaColumn'][$columnIndex])) {
$selected = $_POST['criteriaColumn'][$columnIndex];
$this->formColumns[$newColumnCount] = $_POST['criteriaColumn'][$columnIndex];
}
$htmlOutput .= $this->showColumnSelectCell($newColumnCount, $selected);
$newColumnCount++;
}
$this->newColumnCount = $newColumnCount;
return $htmlOutput;
}
/**
* Provides search form's row containing column aliases
*
* @return string HTML for search table's row
*/
private function getColumnAliasRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($colInd = 0; $colInd < $this->criteriaColumnCount; $colInd++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$colInd])
&& $this->criteriaColumnInsert[$colInd] === 'on'
) {
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="text"'
. ' name="criteriaAlias[' . $newColumnCount . ']">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$colInd])
&& $this->criteriaColumnDelete[$colInd] === 'on'
) {
continue;
}
$tmpAlias = '';
if (! empty($_POST['criteriaAlias'][$colInd])) {
$tmpAlias = $this->formAliases[$newColumnCount] = $_POST['criteriaAlias'][$colInd];
}
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="text"'
. ' name="criteriaAlias[' . $newColumnCount . ']"'
. ' value="' . htmlspecialchars($tmpAlias) . '">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides search form's row containing sort(ASC/DESC) select options
*
* @return string HTML for search table's row
*/
private function getSortRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($colInd = 0; $colInd < $this->criteriaColumnCount; $colInd++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$colInd])
&& $this->criteriaColumnInsert[$colInd] === 'on'
) {
$htmlOutput .= $this->getSortSelectCell($newColumnCount);
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$colInd])
&& $this->criteriaColumnDelete[$colInd] === 'on'
) {
continue;
}
// If they have chosen all fields using the * selector,
// then sorting is not available, Fix for Bug #570698
if (
isset($_POST['criteriaSort'][$colInd], $_POST['criteriaColumn'][$colInd])
&& mb_substr($_POST['criteriaColumn'][$colInd], -2) === '.*'
) {
$_POST['criteriaSort'][$colInd] = '';
}
$selected = '';
if (isset($_POST['criteriaSort'][$colInd])) {
$this->formSorts[$newColumnCount] = $_POST['criteriaSort'][$colInd];
if ($_POST['criteriaSort'][$colInd] === 'ASC') {
$selected = 'ASC';
} elseif ($_POST['criteriaSort'][$colInd] === 'DESC') {
$selected = 'DESC';
}
} else {
$this->formSorts[$newColumnCount] = '';
}
$htmlOutput .= $this->getSortSelectCell($newColumnCount, $selected);
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides search form's row containing sort order
*
* @return string HTML for search table's row
*/
private function getSortOrder()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($colInd = 0; $colInd < $this->criteriaColumnCount; $colInd++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$colInd])
&& $this->criteriaColumnInsert[$colInd] === 'on'
) {
$htmlOutput .= $this->getSortOrderSelectCell($newColumnCount, null);
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$colInd])
&& $this->criteriaColumnDelete[$colInd] === 'on'
) {
continue;
}
$sortOrder = null;
if (! empty($_POST['criteriaSortOrder'][$colInd])) {
$sortOrder = $this->formSortOrders[$newColumnCount] = $_POST['criteriaSortOrder'][$colInd];
}
$htmlOutput .= $this->getSortOrderSelectCell($newColumnCount, $sortOrder);
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides search form's row containing SHOW checkboxes
*
* @return string HTML for search table's row
*/
private function getShowRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$columnIndex])
&& $this->criteriaColumnInsert[$columnIndex] === 'on'
) {
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="checkbox"'
. ' name="criteriaShow[' . $newColumnCount . ']">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$columnIndex])
&& $this->criteriaColumnDelete[$columnIndex] === 'on'
) {
continue;
}
if (isset($_POST['criteriaShow'][$columnIndex])) {
$checkedOptions = ' checked="checked"';
$this->formShows[$newColumnCount] = $_POST['criteriaShow'][$columnIndex];
} else {
$checkedOptions = '';
}
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="checkbox"'
. ' name="criteriaShow[' . $newColumnCount . ']"'
. $checkedOptions . '>';
$htmlOutput .= '</td>';
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides search form's row containing criteria Inputboxes
*
* @return string HTML for search table's row
*/
private function getCriteriaInputboxRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$columnIndex])
&& $this->criteriaColumnInsert[$columnIndex] === 'on'
) {
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="text"'
. ' name="criteria[' . $newColumnCount . ']"'
. ' class="textfield"'
. ' style="width: ' . $this->realwidth . '"'
. ' size="20">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$columnIndex])
&& $this->criteriaColumnDelete[$columnIndex] === 'on'
) {
continue;
}
$tmpCriteria = '';
if (isset($this->criteria[$columnIndex])) {
$tmpCriteria = $this->criteria[$columnIndex];
}
if (
(empty($this->prevCriteria)
|| ! isset($this->prevCriteria[$columnIndex]))
|| $this->prevCriteria[$columnIndex] != $tmpCriteria
) {
$this->formCriterions[$newColumnCount] = $tmpCriteria;
} else {
$this->formCriterions[$newColumnCount] = $this->prevCriteria[$columnIndex];
}
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="hidden"'
. ' name="prev_criteria[' . $newColumnCount . ']"'
. ' value="'
. htmlspecialchars($this->formCriterions[$newColumnCount])
. '">';
$htmlOutput .= '<input type="text"'
. ' name="criteria[' . $newColumnCount . ']"'
. ' value="' . htmlspecialchars($tmpCriteria) . '"'
. ' class="textfield"'
. ' style="width: ' . $this->realwidth . '"'
. ' size="20">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides And/Or modification cell along with Insert/Delete options
* (For modifying search form's table columns)
*
* @param int $columnNumber Column Number (0,1,2) or more
* @param array|null $selected Selected criteria column name
* @param bool $lastColumn Whether this is the last column
*
* @return string HTML for modification cell
*/
private function getAndOrColCell(
$columnNumber,
$selected = null,
$lastColumn = false
) {
$htmlOutput = '<td class="text-center">';
if (! $lastColumn) {
$htmlOutput .= '<strong>' . __('Or:') . '</strong>';
$htmlOutput .= '<input type="radio"'
. ' name="criteriaAndOrColumn[' . $columnNumber . ']"'
. ' value="or"' . ($selected['or'] ?? '') . '>';
$htmlOutput .= ' <strong>' . __('And:') . '</strong>';
$htmlOutput .= '<input type="radio"'
. ' name="criteriaAndOrColumn[' . $columnNumber . ']"'
. ' value="and"' . ($selected['and'] ?? '') . '>';
}
$htmlOutput .= '<br>' . __('Ins');
$htmlOutput .= '<input type="checkbox"'
. ' name="criteriaColumnInsert[' . $columnNumber . ']">';
$htmlOutput .= ' ' . __('Del');
$htmlOutput .= '<input type="checkbox"'
. ' name="criteriaColumnDelete[' . $columnNumber . ']">';
$htmlOutput .= '</td>';
return $htmlOutput;
}
/**
* Provides search form's row containing column modifications options
* (For modifying search form's table columns)
*
* @return string HTML for search table's row
*/
private function getModifyColumnsRow()
{
$htmlOutput = '';
$newColumnCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$columnIndex])
&& $this->criteriaColumnInsert[$columnIndex] === 'on'
) {
$htmlOutput .= $this->getAndOrColCell($newColumnCount);
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$columnIndex])
&& $this->criteriaColumnDelete[$columnIndex] === 'on'
) {
continue;
}
if (isset($this->criteriaAndOrColumn[$columnIndex])) {
$this->formAndOrCols[$newColumnCount] = $this->criteriaAndOrColumn[$columnIndex];
}
$checkedOptions = [];
if (isset($this->criteriaAndOrColumn[$columnIndex]) && $this->criteriaAndOrColumn[$columnIndex] === 'or') {
$checkedOptions['or'] = ' checked="checked"';
$checkedOptions['and'] = '';
} else {
$checkedOptions['and'] = ' checked="checked"';
$checkedOptions['or'] = '';
}
$htmlOutput .= $this->getAndOrColCell(
$newColumnCount,
$checkedOptions,
$columnIndex + 1 == $this->criteriaColumnCount
);
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides rows for criteria inputbox Insert/Delete options
* with AND/OR relationship modification options
*
* @param int $newRowIndex New row index if rows are added/deleted
*
* @return string HTML table rows
*/
private function getInputboxRow($newRowIndex)
{
$htmlOutput = '';
$newColumnCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
! empty($this->criteriaColumnInsert)
&& isset($this->criteriaColumnInsert[$columnIndex])
&& $this->criteriaColumnInsert[$columnIndex] === 'on'
) {
$orFieldName = 'Or' . $newRowIndex . '[' . $newColumnCount . ']';
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="text"'
. ' name="Or' . $orFieldName . '" class="textfield"'
. ' style="width: ' . $this->realwidth . '" size="20">';
$htmlOutput .= '</td>';
$newColumnCount++;
}
if (
! empty($this->criteriaColumnDelete)
&& isset($this->criteriaColumnDelete[$columnIndex])
&& $this->criteriaColumnDelete[$columnIndex] === 'on'
) {
continue;
}
$or = 'Or' . $newRowIndex;
if (! empty($_POST[$or]) && isset($_POST[$or][$columnIndex])) {
$tmpOr = $_POST[$or][$columnIndex];
} else {
$tmpOr = '';
}
$htmlOutput .= '<td class="text-center">';
$htmlOutput .= '<input type="text"'
. ' name="Or' . $newRowIndex . '[' . $newColumnCount . ']"'
. ' value="' . htmlspecialchars($tmpOr) . '" class="textfield"'
. ' style="width: ' . $this->realwidth . '" size="20">';
$htmlOutput .= '</td>';
if (! empty(${$or}) && isset(${$or}[$columnIndex])) {
$GLOBALS[${'cur' . $or}][$newColumnCount] = ${$or}[$columnIndex];
}
$newColumnCount++;
}
return $htmlOutput;
}
/**
* Provides rows for criteria inputbox Insert/Delete options
* with AND/OR relationship modification options
*
* @return string HTML table rows
*/
private function getInsDelAndOrCriteriaRows()
{
$htmlOutput = '';
$newRowCount = 0;
$checkedOptions = [];
for ($rowIndex = 0; $rowIndex <= $this->criteriaRowCount; $rowIndex++) {
if (isset($this->criteriaRowInsert[$rowIndex]) && $this->criteriaRowInsert[$rowIndex] === 'on') {
$checkedOptions['or'] = true;
$checkedOptions['and'] = false;
$htmlOutput .= '<tr class="noclick">';
$htmlOutput .= $this->template->render('database/qbe/ins_del_and_or_cell', [
'row_index' => $newRowCount,
'checked_options' => $checkedOptions,
]);
$htmlOutput .= $this->getInputboxRow($newRowCount);
$newRowCount++;
$htmlOutput .= '</tr>';
}
if (isset($this->criteriaRowDelete[$rowIndex]) && $this->criteriaRowDelete[$rowIndex] === 'on') {
continue;
}
if (isset($this->criteriaAndOrRow[$rowIndex])) {
$this->formAndOrRows[$newRowCount] = $this->criteriaAndOrRow[$rowIndex];
}
if (isset($this->criteriaAndOrRow[$rowIndex]) && $this->criteriaAndOrRow[$rowIndex] === 'and') {
$checkedOptions['and'] = true;
$checkedOptions['or'] = false;
} else {
$checkedOptions['or'] = true;
$checkedOptions['and'] = false;
}
$htmlOutput .= '<tr class="noclick">';
$htmlOutput .= $this->template->render('database/qbe/ins_del_and_or_cell', [
'row_index' => $newRowCount,
'checked_options' => $checkedOptions,
]);
$htmlOutput .= $this->getInputboxRow($newRowCount);
$newRowCount++;
$htmlOutput .= '</tr>';
}
$this->newRowCount = $newRowCount;
return $htmlOutput;
}
/**
* Provides SELECT clause for building SQL query
*
* @return string Select clause
*/
private function getSelectClause()
{
$selectClause = '';
$selectClauses = [];
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
empty($this->formColumns[$columnIndex])
|| ! isset($this->formShows[$columnIndex])
|| $this->formShows[$columnIndex] !== 'on'
) {
continue;
}
$select = $this->formColumns[$columnIndex];
if (! empty($this->formAliases[$columnIndex])) {
$select .= ' AS '
. Util::backquote($this->formAliases[$columnIndex]);
}
$selectClauses[] = $select;
}
if (! empty($selectClauses)) {
$selectClause = 'SELECT ' . implode(', ', $selectClauses) . "\n";
}
return $selectClause;
}
/**
* Provides WHERE clause for building SQL query
*
* @return string Where clause
*/
private function getWhereClause()
{
$whereClause = '';
$criteriaCount = 0;
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
isset($lastWhere, $this->formAndOrCols)
&& ! empty($this->formColumns[$columnIndex])
&& ! empty($this->formCriterions[$columnIndex])
&& $columnIndex
) {
$whereClause .= ' '
. mb_strtoupper($this->formAndOrCols[$lastWhere])
. ' ';
}
if (empty($this->formColumns[$columnIndex]) || empty($this->formCriterions[$columnIndex])) {
continue;
}
$whereClause .= '(' . $this->formColumns[$columnIndex] . ' '
. $this->formCriterions[$columnIndex] . ')';
$lastWhere = $columnIndex;
$criteriaCount++;
}
if ($criteriaCount > 1) {
$whereClause = '(' . $whereClause . ')';
}
// OR rows ${'cur' . $or}[$column_index]
if (! isset($this->formAndOrRows)) {
$this->formAndOrRows = [];
}
for ($rowIndex = 0; $rowIndex <= $this->criteriaRowCount; $rowIndex++) {
$criteriaCount = 0;
$queryOrWhere = '';
$lastOrWhere = '';
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
if (
! empty($this->formColumns[$columnIndex])
&& ! empty($_POST['Or' . $rowIndex][$columnIndex])
&& $columnIndex
) {
$queryOrWhere .= ' '
. mb_strtoupper($this->formAndOrCols[$lastOrWhere])
. ' ';
}
if (empty($this->formColumns[$columnIndex]) || empty($_POST['Or' . $rowIndex][$columnIndex])) {
continue;
}
$queryOrWhere .= '(' . $this->formColumns[$columnIndex]
. ' '
. $_POST['Or' . $rowIndex][$columnIndex]
. ')';
$lastOrWhere = $columnIndex;
$criteriaCount++;
}
if ($criteriaCount > 1) {
$queryOrWhere = '(' . $queryOrWhere . ')';
}
if (empty($queryOrWhere)) {
continue;
}
$whereClause .= "\n"
. mb_strtoupper(isset($this->formAndOrRows[$rowIndex]) ? $this->formAndOrRows[$rowIndex] . ' ' : '')
. $queryOrWhere;
}
if (! empty($whereClause) && $whereClause !== '()') {
$whereClause = 'WHERE ' . $whereClause . "\n";
}
return $whereClause;
}
/**
* Provides ORDER BY clause for building SQL query
*
* @return string Order By clause
*/
private function getOrderByClause()
{
$orderByClause = '';
$orderByClauses = [];
// Create copy of instance variables
$columns = $this->formColumns;
$sort = $this->formSorts;
$sortOrder = $this->formSortOrders;
if (! empty($sortOrder) && count($sortOrder) == count($sort) && count($sortOrder) == count($columns)) {
// Sort all three arrays based on sort order
array_multisort($sortOrder, $sort, $columns);
}
for ($columnIndex = 0; $columnIndex < $this->criteriaColumnCount; $columnIndex++) {
// if all columns are chosen with * selector,
// then sorting isn't available
// Fix for Bug #570698
if (empty($columns[$columnIndex]) && empty($sort[$columnIndex])) {
continue;
}
if (mb_substr($columns[$columnIndex], -2) === '.*') {
continue;
}
if (empty($sort[$columnIndex])) {
continue;
}
$orderByClauses[] = $columns[$columnIndex] . ' '
. $sort[$columnIndex];
}
if (! empty($orderByClauses)) {
$orderByClause = 'ORDER BY ' . implode(', ', $orderByClauses) . "\n";
}
return $orderByClause;
}
/**
* Provides UNIQUE columns and INDEX columns present in criteria tables
*
* @param array $searchTables Tables involved in the search
* @param array $searchColumns Columns involved in the search
* @param array $whereClauseColumns Columns having criteria where clause
*
* @return array having UNIQUE and INDEX columns
*/
private function getIndexes(
array $searchTables,
array $searchColumns,
array $whereClauseColumns
) {
$uniqueColumns = [];
$indexColumns = [];
foreach ($searchTables as $table) {
$indexes = $this->dbi->getTableIndexes($this->db, $table);
foreach ($indexes as $index) {
$column = $table . '.' . $index['Column_name'];
if (! isset($searchColumns[$column])) {
continue;
}
if ($index['Non_unique'] == 0) {
if (isset($whereClauseColumns[$column])) {
$uniqueColumns[$column] = 'Y';
} else {
$uniqueColumns[$column] = 'N';
}
} else {
if (isset($whereClauseColumns[$column])) {
$indexColumns[$column] = 'Y';
} else {
$indexColumns[$column] = 'N';
}
}
}
}
return [
'unique' => $uniqueColumns,
'index' => $indexColumns,
];
}
/**
* Provides UNIQUE columns and INDEX columns present in criteria tables
*
* @param array $searchTables Tables involved in the search
* @param array $searchColumns Columns involved in the search
* @param array $whereClauseColumns Columns having criteria where clause
*
* @return array having UNIQUE and INDEX columns
*/
private function getLeftJoinColumnCandidates(
array $searchTables,
array $searchColumns,
array $whereClauseColumns
) {
$this->dbi->selectDb($this->db);
// Get unique columns and index columns
$indexes = $this->getIndexes($searchTables, $searchColumns, $whereClauseColumns);
$uniqueColumns = $indexes['unique'];
$indexColumns = $indexes['index'];
[$candidateColumns, $needSort] = $this->getLeftJoinColumnCandidatesBest(
$searchTables,
$whereClauseColumns,
$uniqueColumns,
$indexColumns
);
// If we came up with $unique_columns (very good) or $index_columns (still
// good) as $candidate_columns we want to check if we have any 'Y' there
// (that would mean that they were also found in the whereclauses
// which would be great). if yes, we take only those
if ($needSort != 1) {
return $candidateColumns;
}
$veryGood = [];
$stillGood = [];
foreach ($candidateColumns as $column => $isWhere) {
$table = explode('.', $column);
$table = $table[0];
if ($isWhere === 'Y') {
$veryGood[$column] = $table;
} else {
$stillGood[$column] = $table;
}
}
if (count($veryGood) > 0) {
$candidateColumns = $veryGood;
// Candidates restricted in index+where
} else {
$candidateColumns = $stillGood;
// None of the candidates where in a where-clause
}
return $candidateColumns;
}
/**
* Provides the main table to form the LEFT JOIN clause
*
* @param array $searchTables Tables involved in the search
* @param array $searchColumns Columns involved in the search
* @param array $whereClauseColumns Columns having criteria where clause
* @param array $whereClauseTables Tables having criteria where clause
*
* @return string table name
*/
private function getMasterTable(
array $searchTables,
array $searchColumns,
array $whereClauseColumns,
array $whereClauseTables
) {
if (count($whereClauseTables) === 1) {
// If there is exactly one column that has a decent where-clause
// we will just use this
return key($whereClauseTables);
}
// Now let's find out which of the tables has an index
// (When the control user is the same as the normal user
// because they are using one of their databases as pmadb,
// the last db selected is not always the one where we need to work)
$candidateColumns = $this->getLeftJoinColumnCandidates($searchTables, $searchColumns, $whereClauseColumns);
// Generally, we need to display all the rows of foreign (referenced)
// table, whether they have any matching row in child table or not.
// So we select candidate tables which are foreign tables.
$foreignTables = [];
foreach ($candidateColumns as $oneTable) {
$foreigners = $this->relation->getForeigners($this->db, $oneTable);
foreach ($foreigners as $key => $foreigner) {
if ($key !== 'foreign_keys_data') {
if (in_array($foreigner['foreign_table'], $candidateColumns)) {
$foreignTables[$foreigner['foreign_table']] = $foreigner['foreign_table'];
}
continue;
}
foreach ($foreigner as $oneKey) {
if (! in_array($oneKey['ref_table_name'], $candidateColumns)) {
continue;
}
$foreignTables[$oneKey['ref_table_name']] = $oneKey['ref_table_name'];
}
}
}
if (count($foreignTables)) {
$candidateColumns = $foreignTables;
}
// If our array of candidates has more than one member we'll just
// find the smallest table.
// Of course the actual query would be faster if we check for
// the Criteria which gives the smallest result set in its table,
// but it would take too much time to check this
if (! (count($candidateColumns) > 1)) {
// Only one single candidate
return reset($candidateColumns);
}
// Of course we only want to check each table once
$checkedTables = $candidateColumns;
$tsize = [];
$maxsize = -1;
$result = '';
foreach ($candidateColumns as $table) {
if ($checkedTables[$table] != 1) {
$tableObj = new Table($table, $this->db);
$tsize[$table] = $tableObj->countRecords();
$checkedTables[$table] = 1;
}
if ($tsize[$table] <= $maxsize) {
continue;
}
$maxsize = $tsize[$table];
$result = $table;
}
// Return largest table
return $result;
}
/**
* Provides columns and tables that have valid where clause criteria
*
* @return array
*/
private function getWhereClauseTablesAndColumns()
{
$whereClauseColumns = [];
$whereClauseTables = [];
// Now we need all tables that we have in the where clause
for ($columnIndex = 0, $nb = count($this->criteria); $columnIndex < $nb; $columnIndex++) {
$currentTable = explode('.', $_POST['criteriaColumn'][$columnIndex]);
if (empty($currentTable[0]) || empty($currentTable[1])) {
continue;
}
$table = str_replace('`', '', $currentTable[0]);
$column = str_replace('`', '', $currentTable[1]);
$column = $table . '.' . $column;
// Now we know that our array has the same numbers as $criteria
// we can check which of our columns has a where clause
if (empty($this->criteria[$columnIndex])) {
continue;
}
if (
mb_substr($this->criteria[$columnIndex], 0, 1) !== '='
&& stripos($this->criteria[$columnIndex], 'is') === false
) {
continue;
}
$whereClauseColumns[$column] = $column;
$whereClauseTables[$table] = $table;
}
return [
'where_clause_tables' => $whereClauseTables,
'where_clause_columns' => $whereClauseColumns,
];
}
/**
* Provides FROM clause for building SQL query
*
* @param array $formColumns List of selected columns in the form
*
* @return string FROM clause
*/
private function getFromClause(array $formColumns)
{
$fromClause = '';
if (empty($formColumns)) {
return $fromClause;
}
// Initialize some variables
$searchTables = $searchColumns = [];
// We only start this if we have fields, otherwise it would be dumb
foreach ($formColumns as $value) {
$parts = explode('.', $value);
if (empty($parts[0]) || empty($parts[1])) {
continue;
}
$table = str_replace('`', '', $parts[0]);
$searchTables[$table] = $table;
$searchColumns[] = $table . '.' . str_replace('`', '', $parts[1]);
}
// Create LEFT JOINS out of Relations
$fromClause = $this->getJoinForFromClause($searchTables, $searchColumns);
// In case relations are not defined, just generate the FROM clause
// from the list of tables, however we don't generate any JOIN
if (empty($fromClause)) {
// Create cartesian product
$fromClause = implode(
', ',
array_map([Util::class, 'backquote'], $searchTables)
);
}
return $fromClause;
}
/**
* Formulates the WHERE clause by JOINing tables
*
* @param array $searchTables Tables involved in the search
* @param array $searchColumns Columns involved in the search
*
* @return string table name
*/
private function getJoinForFromClause(array $searchTables, array $searchColumns)
{
// $relations[master_table][foreign_table] => clause
$relations = [];
// Fill $relations with inter table relationship data
foreach ($searchTables as $oneTable) {
$this->loadRelationsForTable($relations, $oneTable);
}
// Get tables and columns with valid where clauses
$validWhereClauses = $this->getWhereClauseTablesAndColumns();
$whereClauseTables = $validWhereClauses['where_clause_tables'];
$whereClauseColumns = $validWhereClauses['where_clause_columns'];
// Get master table
$master = $this->getMasterTable($searchTables, $searchColumns, $whereClauseColumns, $whereClauseTables);
// Will include master tables and all tables that can be combined into
// a cluster by their relation
$finalized = [];
if (strlen((string) $master) > 0) {
// Add master tables
$finalized[$master] = '';
}
// Fill the $finalized array with JOIN clauses for each table
$this->fillJoinClauses($finalized, $relations, $searchTables);
// JOIN clause
$join = '';
// Tables that can not be combined with the table cluster
// which includes master table
$unfinalized = array_diff($searchTables, array_keys($finalized));
if (count($unfinalized) > 0) {
// We need to look for intermediary tables to JOIN unfinalized tables
// Heuristic to chose intermediary tables is to look for tables
// having relationships with unfinalized tables
foreach ($unfinalized as $oneTable) {
$references = $this->relation->getChildReferences($this->db, $oneTable);
foreach ($references as $columnReferences) {
foreach ($columnReferences as $reference) {
// Only from this schema
if ($reference['table_schema'] != $this->db) {
continue;
}
$table = $reference['table_name'];
$this->loadRelationsForTable($relations, $table);
// Make copies
$tempFinalized = $finalized;
$tempSearchTables = $searchTables;
$tempSearchTables[] = $table;
// Try joining with the added table
$this->fillJoinClauses($tempFinalized, $relations, $tempSearchTables);
$tempUnfinalized = array_diff(
$tempSearchTables,
array_keys($tempFinalized)
);
// Take greedy approach.
// If the unfinalized count drops we keep the new table
// and switch temporary varibles with the original ones
if (count($tempUnfinalized) < count($unfinalized)) {
$finalized = $tempFinalized;
$searchTables = $tempSearchTables;
}
// We are done if no unfinalized tables anymore
if (count($tempUnfinalized) === 0) {
break 3;
}
}
}
}
$unfinalized = array_diff($searchTables, array_keys($finalized));
// If there are still unfinalized tables
if (count($unfinalized) > 0) {
// Add these tables as cartesian product before joined tables
$join .= implode(
', ',
array_map([Util::class, 'backquote'], $unfinalized)
);
}
}
$first = true;
// Add joined tables
foreach ($finalized as $table => $clause) {
if ($first) {
if (! empty($join)) {
$join .= ', ';
}
$join .= Util::backquote($table);
$first = false;
} else {
$join .= "\n LEFT JOIN " . Util::backquote($table) . ' ON ' . $clause;
}
}
return $join;
}
/**
* Loads relations for a given table into the $relations array
*
* @param array $relations array of relations
* @param string $oneTable the table
*/
private function loadRelationsForTable(array &$relations, $oneTable): void
{
$relations[$oneTable] = [];
$foreigners = $this->relation->getForeigners($GLOBALS['db'], $oneTable);
foreach ($foreigners as $field => $foreigner) {
// Foreign keys data
if ($field === 'foreign_keys_data') {
foreach ($foreigner as $oneKey) {
$clauses = [];
// There may be multiple column relations
foreach ($oneKey['index_list'] as $index => $oneField) {
$clauses[] = Util::backquote($oneTable) . '.'
. Util::backquote($oneField) . ' = '
. Util::backquote($oneKey['ref_table_name']) . '.'
. Util::backquote($oneKey['ref_index_list'][$index]);
}
// Combine multiple column relations with AND
$relations[$oneTable][$oneKey['ref_table_name']] = implode(' AND ', $clauses);
}
} else { // Internal relations
$relations[$oneTable][$foreigner['foreign_table']] = Util::backquote($oneTable) . '.'
. Util::backquote((string) $field) . ' = '
. Util::backquote($foreigner['foreign_table']) . '.'
. Util::backquote($foreigner['foreign_field']);
}
}
}
/**
* Fills the $finalized arrays with JOIN clauses for each of the tables
*
* @param array $finalized JOIN clauses for each table
* @param array $relations Relations among tables
* @param array $searchTables Tables involved in the search
*/
private function fillJoinClauses(array &$finalized, array $relations, array $searchTables): void
{
while (true) {
$added = false;
foreach ($searchTables as $masterTable) {
$foreignData = $relations[$masterTable];
foreach ($foreignData as $foreignTable => $clause) {
if (! isset($finalized[$masterTable]) && isset($finalized[$foreignTable])) {
$finalized[$masterTable] = $clause;
$added = true;
} elseif (
! isset($finalized[$foreignTable])
&& isset($finalized[$masterTable])
&& in_array($foreignTable, $searchTables)
) {
$finalized[$foreignTable] = $clause;
$added = true;
}
if (! $added) {
continue;
}
// We are done if all tables are in $finalized
if (count($finalized) == count($searchTables)) {
return;
}
}
}
// If no new tables were added during this iteration, break;
if (! $added) {
return;
}
}
}
/**
* Provides the generated SQL query
*
* @param array $formColumns List of selected columns in the form
*
* @return string SQL query
*/
private function getSQLQuery(array $formColumns)
{
$sqlQuery = '';
// get SELECT clause
$sqlQuery .= $this->getSelectClause();
// get FROM clause
$fromClause = $this->getFromClause($formColumns);
if ($fromClause !== '') {
$sqlQuery .= 'FROM ' . $fromClause . "\n";
}
// get WHERE clause
$sqlQuery .= $this->getWhereClause();
// get ORDER BY clause
$sqlQuery .= $this->getOrderByClause();
return $sqlQuery;
}
public function getSelectionForm(): string
{
$relationParameters = $this->relation->getRelationParameters();
$savedSearchesField = $relationParameters->savedQueryByExampleSearchesFeature !== null
? $this->getSavedSearchesField()
: '';
$columnNamesRow = $this->getColumnNamesRow();
$columnAliasRow = $this->getColumnAliasRow();
$showRow = $this->getShowRow();
$sortRow = $this->getSortRow();
$sortOrder = $this->getSortOrder();
$criteriaInputBoxRow = $this->getCriteriaInputboxRow();
$insDelAndOrCriteriaRows = $this->getInsDelAndOrCriteriaRows();
$modifyColumnsRow = $this->getModifyColumnsRow();
$this->newRowCount--;
$urlParams = [];
$urlParams['db'] = $this->db;
$urlParams['criteriaColumnCount'] = $this->newColumnCount;
$urlParams['rows'] = $this->newRowCount;
if (empty($this->formColumns)) {
$this->formColumns = [];
}
$sqlQuery = $this->getSQLQuery($this->formColumns);
return $this->template->render('database/qbe/selection_form', [
'db' => $this->db,
'url_params' => $urlParams,
'db_link' => Generator::getDbLink($this->db),
'criteria_tables' => $this->criteriaTables,
'saved_searches_field' => $savedSearchesField,
'column_names_row' => $columnNamesRow,
'column_alias_row' => $columnAliasRow,
'show_row' => $showRow,
'sort_row' => $sortRow,
'sort_order' => $sortOrder,
'criteria_input_box_row' => $criteriaInputBoxRow,
'ins_del_and_or_criteria_rows' => $insDelAndOrCriteriaRows,
'modify_columns_row' => $modifyColumnsRow,
'sql_query' => $sqlQuery,
]);
}
/**
* Get fields to display
*
* @return string
*/
private function getSavedSearchesField()
{
$htmlOutput = __('Saved bookmarked search:');
$htmlOutput .= ' <select name="searchId" id="searchId">';
$htmlOutput .= '<option value="">' . __('New bookmark') . '</option>';
$currentSearch = $this->getCurrentSearch();
$currentSearchId = null;
$currentSearchName = null;
if ($currentSearch !== null) {
$currentSearchId = $currentSearch->getId();
$currentSearchName = $currentSearch->getSearchName();
}
foreach ($this->savedSearchList as $id => $name) {
$htmlOutput .= '<option value="' . htmlspecialchars((string) $id)
. '" ' . (
$id == $currentSearchId
? 'selected="selected" '
: ''
)
. '>'
. htmlspecialchars($name)
. '</option>';
}
$htmlOutput .= '</select>';
$htmlOutput .= '<input type="text" name="searchName" id="searchName" '
. 'value="' . htmlspecialchars((string) $currentSearchName) . '">';
$htmlOutput .= '<input type="hidden" name="action" id="action" value="">';
$htmlOutput .= '<input class="btn btn-secondary" type="submit" name="saveSearch" id="saveSearch" '
. 'value="' . __('Create bookmark') . '">';
if ($currentSearchId !== null) {
$htmlOutput .= '<input class="btn btn-secondary" type="submit" name="updateSearch" '
. 'id="updateSearch" value="' . __('Update bookmark') . '">';
$htmlOutput .= '<input class="btn btn-secondary" type="submit" name="deleteSearch" '
. 'id="deleteSearch" value="' . __('Delete bookmark') . '">';
}
return $htmlOutput;
}
/**
* Initialize _criteria_column_count
*
* @return int Previous number of columns
*/
private function initializeCriteriasCount(): int
{
// sets column count
$criteriaColumnCount = isset($_POST['criteriaColumnCount']) && is_numeric($_POST['criteriaColumnCount'])
? (int) $_POST['criteriaColumnCount']
: 3;
$criteriaColumnAdd = isset($_POST['criteriaColumnAdd']) && is_numeric($_POST['criteriaColumnAdd'])
? (int) $_POST['criteriaColumnAdd']
: 0;
$this->criteriaColumnCount = max($criteriaColumnCount + $criteriaColumnAdd, 0);
// sets row count
$rows = isset($_POST['rows']) && is_numeric($_POST['rows']) ? (int) $_POST['rows'] : 0;
$criteriaRowAdd = isset($_POST['criteriaRowAdd']) && is_numeric($_POST['criteriaRowAdd'])
? (int) $_POST['criteriaRowAdd']
: 0;
$this->criteriaRowCount = min(
100,
max($rows + $criteriaRowAdd, 0)
);
return $criteriaColumnCount;
}
/**
* Get best
*
* @param array $searchTables Tables involved in the search
* @param array|null $whereClauseColumns Columns with where clause
* @param array|null $uniqueColumns Unique columns
* @param array|null $indexColumns Indexed columns
*
* @return array
*/
private function getLeftJoinColumnCandidatesBest(
array $searchTables,
?array $whereClauseColumns,
?array $uniqueColumns,
?array $indexColumns
) {
// now we want to find the best.
if (isset($uniqueColumns) && count($uniqueColumns) > 0) {
$candidateColumns = $uniqueColumns;
$needSort = 1;
return [
$candidateColumns,
$needSort,
];
}
if (isset($indexColumns) && count($indexColumns) > 0) {
$candidateColumns = $indexColumns;
$needSort = 1;
return [
$candidateColumns,
$needSort,
];
}
if (isset($whereClauseColumns) && count($whereClauseColumns) > 0) {
$candidateColumns = $whereClauseColumns;
$needSort = 0;
return [
$candidateColumns,
$needSort,
];
}
$candidateColumns = $searchTables;
$needSort = 0;
return [
$candidateColumns,
$needSort,
];
}
}
| .. | |||||
| Designer | |||||
| CentralColumns.php | |||||
| DatabaseList.php | |||||
| Designer.php | |||||
| Events.php | |||||
| MultiTableQuery.php | |||||
| Qbe.php | |||||
| Routines.php | |||||
| Search.php | |||||
| Triggers.php |