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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Handles DB QBE search
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/**
* Class to handle database QBE search
*
* @package PhpMyAdmin
*/
class PMA_DbQbe
{
/**
* Database name
*
* @access private
* @var string
*/
private $_db;
/**
* Table Names (selected/non-selected)
*
* @access private
* @var array
*/
private $_criteriaTables;
/**
* Column Names
*
* @access private
* @var array
*/
private $_columnNames;
/**
* Number of columns
*
* @access private
* @var integer
*/
private $_criteria_column_count;
/**
* Number of Rows
*
* @access private
* @var integer
*/
private $_criteria_row_count;
/**
* Whether to insert a new column
*
* @access private
* @var array
*/
private $_criteriaColumnInsert;
/**
* Whether to delete a column
*
* @access private
* @var array
*/
private $_criteriaColumnDelete;
/**
* Whether to insert a new row
*
* @access private
* @var array
*/
private $_criteriaRowInsert;
/**
* Whether to delete a row
*
* @access private
* @var array
*/
private $_criteriaRowDelete;
/**
* Already set criteria values
*
* @access private
* @var array
*/
private $_criteria;
/**
* Previously set criteria values
*
* @access private
* @var array
*/
private $_prev_criteria;
/**
* AND/OR relation b/w criteria columns
*
* @access private
* @var array
*/
private $_criteriaAndOrColumn;
/**
* AND/OR relation b/w criteria rows
*
* @access private
* @var array
*/
private $_criteriaAndOrRow;
/**
* Larget width of a column
*
* @access private
* @var string
*/
private $_realwidth;
/**
* Minimum width of a column
*
* @access private
* @var int
*/
private $_form_column_width;
/**
* Current criteria field
*
* @access private
* @var array
*/
private $_curField;
/**
* Current criteria Sort options
*
* @access private
* @var array
*/
private $_curSort;
/**
* Current criteria Show options
*
* @access private
* @var array
*/
private $_curShow;
/**
* Current criteria values
*
* @access private
* @var array
*/
private $_curCriteria;
/**
* Current criteria AND/OR column relations
*
* @access private
* @var array
*/
private $_curAndOrCol;
/**
* Current criteria AND/OR row relations
*
* @access private
* @var array
*/
private $_curAndOrRow;
/**
* New column count in case of add/delete
*
* @access private
* @var integer
*/
private $_new_column_count;
/**
* New row count in case of add/delete
*
* @access private
* @var integer
*/
private $_new_row_count;
/**
* List of saved searches
*
* @access private
* @var array
*/
private $_savedSearchList = null;
/**
* Current search
*
* @access private
* @var PMA_SavedSearches
*/
private $_currentSearch = null;
/**
* Initialize criterias
*
* @return static
*/
private function _loadCriterias()
{
if (null === $this->_currentSearch
|| null === $this->_currentSearch->getCriterias()
) {
return $this;
}
$criterias = $this->_currentSearch->getCriterias();
$_REQUEST = $criterias + $_REQUEST;
return $this;
}
/**
* Getter for current search
*
* @return PMA_SavedSearches
*/
private function _getCurrentSearch()
{
return $this->_currentSearch;
}
/**
* Public Constructor
*
* @param string $dbname Database name
* @param array $savedSearchList List of saved searches
* @param PMA_SavedSearches $currentSearch Current search id
*/
public function __construct(
$dbname, $savedSearchList = array(), $currentSearch = null
) {
$this->_db = $dbname;
$this->_savedSearchList = $savedSearchList;
$this->_currentSearch = $currentSearch;
$this->_loadCriterias();
// Sets criteria parameters
$this->_setSearchParams();
$this->_setCriteriaTablesAndColumns();
}
/**
* Sets search parameters
*
* @return void
*/
private function _setSearchParams()
{
$criteriaColumnCount = $this->_initializeCriteriasCount();
$this->_criteriaColumnInsert = PMA_ifSetOr(
$_REQUEST['criteriaColumnInsert'],
null,
'array'
);
$this->_criteriaColumnDelete = PMA_ifSetOr(
$_REQUEST['criteriaColumnDelete'],
null,
'array'
);
$this->_prev_criteria = isset($_REQUEST['prev_criteria'])
? $_REQUEST['prev_criteria']
: array();
$this->_criteria = isset($_REQUEST['criteria'])
? $_REQUEST['criteria']
: array_fill(0, $criteriaColumnCount, '');
$this->_criteriaRowInsert = isset($_REQUEST['criteriaRowInsert'])
? $_REQUEST['criteriaRowInsert']
: array_fill(0, $criteriaColumnCount, '');
$this->_criteriaRowDelete = isset($_REQUEST['criteriaRowDelete'])
? $_REQUEST['criteriaRowDelete']
: array_fill(0, $criteriaColumnCount, '');
$this->_criteriaAndOrRow = isset($_REQUEST['criteriaAndOrRow'])
? $_REQUEST['criteriaAndOrRow']
: array_fill(0, $criteriaColumnCount, '');
$this->_criteriaAndOrColumn = isset($_REQUEST['criteriaAndOrColumn'])
? $_REQUEST['criteriaAndOrColumn']
: array_fill(0, $criteriaColumnCount, '');
// sets minimum width
$this->_form_column_width = 12;
$this->_curField = array();
$this->_curSort = array();
$this->_curShow = array();
$this->_curCriteria = array();
$this->_curAndOrRow = array();
$this->_curAndOrCol = array();
}
/**
* Sets criteria tables and columns
*
* @return void
*/
private function _setCriteriaTablesAndColumns()
{
// The tables list sent by a previously submitted form
if (PMA_isValid($_REQUEST['TableList'], 'array')) {
foreach ($_REQUEST['TableList'] as $each_table) {
$this->_criteriaTables[$each_table] = ' selected="selected"';
}
} // end if
$all_tables = $GLOBALS['dbi']->query(
'SHOW TABLES FROM ' . PMA_Util::backquote($this->_db) . ';',
null,
PMA_DatabaseInterface::QUERY_STORE
);
$all_tables_count = $GLOBALS['dbi']->numRows($all_tables);
if (0 == $all_tables_count) {
PMA_Message::error(__('No tables found in database.'))->display();
exit;
}
// The tables list gets from MySQL
while (list($table) = $GLOBALS['dbi']->fetchRow($all_tables)) {
$columns = $GLOBALS['dbi']->getColumns($this->_db, $table);
if (empty($this->_criteriaTables[$table])
&& ! empty($_REQUEST['TableList'])
) {
$this->_criteriaTables[$table] = '';
} else {
$this->_criteriaTables[$table] = ' selected="selected"';
} // end if
// The fields list per selected tables
if ($this->_criteriaTables[$table] == ' selected="selected"') {
$each_table = PMA_Util::backquote($table);
$this->_columnNames[] = $each_table . '.*';
foreach ($columns as $each_column) {
$each_column = $each_table . '.'
. PMA_Util::backquote($each_column['Field']);
$this->_columnNames[] = $each_column;
// increase the width if necessary
$this->_form_column_width = max(
strlen($each_column),
$this->_form_column_width
);
} // end foreach
} // end if
} // end while
$GLOBALS['dbi']->freeResult($all_tables);
// sets the largest width found
$this->_realwidth = $this->_form_column_width . 'ex';
}
/**
* Provides select options list containing column names
*
* @param integer $column_number Column Number (0,1,2) or more
* @param string $selected Selected criteria column name
*
* @return string HTML for select options
*/
private function _showColumnSelectCell($column_number, $selected = '')
{
$html_output = '';
$html_output .= '<td class="center">';
$html_output .= '<select name="criteriaColumn[' . $column_number
. ']" size="1">';
$html_output .= '<option value=""> </option>';
foreach ($this->_columnNames as $column) {
$html_output .= '<option value="' . htmlspecialchars($column) . '"'
. (($column === $selected) ? ' selected="selected"' : '') . '>'
. str_replace(' ', ' ', htmlspecialchars($column))
. '</option>';
}
$html_output .= '</select>';
$html_output .= '</td>';
return $html_output;
}
/**
* Provides select options list containing sort options (ASC/DESC)
*
* @param integer $column_number Column Number (0,1,2) or more
* @param string $asc_selected Selected criteria 'Ascending'
* @param string $desc_selected Selected criteria 'Descending'
*
* @return string HTML for select options
*/
private function _getSortSelectCell($column_number, $asc_selected = '',
$desc_selected = ''
) {
$html_output = '<td class="center">';
$html_output .= '<select style="width: ' . $this->_realwidth
. '" name="criteriaSort[' . $column_number . ']" size="1">';
$html_output .= '<option value=""> </option>';
$html_output .= '<option value="ASC"' . $asc_selected . '>'
. __('Ascending')
. '</option>';
$html_output .= '<option value="DESC"' . $desc_selected . '>'
. __('Descending')
. '</option>';
$html_output .= '</select>';
$html_output .= '</td>';
return $html_output;
}
/**
* Provides search form's row containing column select options
*
* @return string HTML for search table's row
*/
private function _getColumnNamesRow()
{
$html_output = '<tr class="odd noclick">';
$html_output .= '<th>' . __('Column:') . '</th>';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$html_output .= $this->_showColumnSelectCell(
$new_column_count
);
$new_column_count++;
}
if (! empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
$selected = '';
if (isset($_REQUEST['criteriaColumn'][$column_index])) {
$selected = $_REQUEST['criteriaColumn'][$column_index];
$this->_curField[$new_column_count]
= $_REQUEST['criteriaColumn'][$column_index];
}
$html_output .= $this->_showColumnSelectCell(
$new_column_count,
$selected
);
$new_column_count++;
} // end for
$this->_new_column_count = $new_column_count;
$html_output .= '</tr>';
return $html_output;
}
/**
* Provides search form's row containing sort(ASC/DESC) select options
*
* @return string HTML for search table's row
*/
private function _getSortRow()
{
$html_output = '<tr class="even noclick">';
$html_output .= '<th>' . __('Sort:') . '</th>';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_criteriaColumnInsert)
&& isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$html_output .= $this->_getSortSelectCell($new_column_count);
$new_column_count++;
} // end if
if (! empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
// If they have chosen all fields using the * selector,
// then sorting is not available, Fix for Bug #570698
if (isset($_REQUEST['criteriaSort'][$column_index])
&& isset($_REQUEST['criteriaColumn'][$column_index])
&& substr($_REQUEST['criteriaColumn'][$column_index], -2) == '.*'
) {
$_REQUEST['criteriaSort'][$column_index] = '';
} //end if
// Set asc_selected
if (isset($_REQUEST['criteriaSort'][$column_index])
&& $_REQUEST['criteriaSort'][$column_index] == 'ASC'
) {
$this->_curSort[$new_column_count]
= $_REQUEST['criteriaSort'][$column_index];
$asc_selected = ' selected="selected"';
} else {
$asc_selected = '';
} // end if
// Set desc selected
if (isset($_REQUEST['criteriaSort'][$column_index])
&& $_REQUEST['criteriaSort'][$column_index] == 'DESC'
) {
$this->_curSort[$new_column_count]
= $_REQUEST['criteriaSort'][$column_index];
$desc_selected = ' selected="selected"';
} else {
$desc_selected = '';
} // end if
$html_output .= $this->_getSortSelectCell(
$new_column_count, $asc_selected, $desc_selected
);
$new_column_count++;
} // end for
$html_output .= '</tr>';
return $html_output;
}
/**
* Provides search form's row containing SHOW checkboxes
*
* @return string HTML for search table's row
*/
private function _getShowRow()
{
$html_output = '<tr class="odd noclick">';
$html_output .= '<th>' . __('Show:') . '</th>';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_criteriaColumnInsert)
&& isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$html_output .= '<td class="center">';
$html_output .= '<input type="checkbox"'
. ' name="criteriaShow[' . $new_column_count . ']" />';
$html_output .= '</td>';
$new_column_count++;
} // end if
if (! empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
if (isset($_REQUEST['criteriaShow'][$column_index])) {
$checked_options = ' checked="checked"';
$this->_curShow[$new_column_count]
= $_REQUEST['criteriaShow'][$column_index];
} else {
$checked_options = '';
}
$html_output .= '<td class="center">';
$html_output .= '<input type="checkbox"'
. ' name="criteriaShow[' . $new_column_count . ']"'
. $checked_options . ' />';
$html_output .= '</td>';
$new_column_count++;
} // end for
$html_output .= '</tr>';
return $html_output;
}
/**
* Provides search form's row containing criteria Inputboxes
*
* @return string HTML for search table's row
*/
private function _getCriteriaInputboxRow()
{
$html_output = '<tr class="even noclick">';
$html_output .= '<th>' . __('Criteria:') . '</th>';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_criteriaColumnInsert)
&& isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$html_output .= '<td class="center">';
$html_output .= '<input type="text"'
. ' name="criteria[' . $new_column_count . ']"'
. ' value=""'
. ' class="textfield"'
. ' style="width: ' . $this->_realwidth . '"'
. ' size="20" />';
$html_output .= '</td>';
$new_column_count++;
} // end if
if (! empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
if (isset($this->_criteria[$column_index])) {
$tmp_criteria = $this->_criteria[$column_index];
}
if ((empty($this->_prev_criteria)
|| ! isset($this->_prev_criteria[$column_index]))
|| $this->_prev_criteria[$column_index] != htmlspecialchars($tmp_criteria)
) {
$this->_curCriteria[$new_column_count] = $tmp_criteria;
} else {
$this->_curCriteria[$new_column_count]
= $this->_prev_criteria[$column_index];
}
$html_output .= '<td class="center">';
$html_output .= '<input type="hidden"'
. ' name="prev_criteria[' . $new_column_count . ']"'
. ' value="'
. htmlspecialchars($this->_curCriteria[$new_column_count])
. '" />';
$html_output .= '<input type="text"'
. ' name="criteria[' . $new_column_count . ']"'
. ' value="' . htmlspecialchars($tmp_criteria) . '"'
. ' class="textfield"'
. ' style="width: ' . $this->_realwidth . '"'
. ' size="20" />';
$html_output .= '</td>';
$new_column_count++;
} // end for
$html_output .= '</tr>';
return $html_output;
}
/**
* Provides footer options for adding/deleting row/columns
*
* @param string $type Whether row or column
*
* @return string HTML for footer options
*/
private function _getFootersOptions($type)
{
$html_output = '<div class="floatleft">';
$html_output .= (($type == 'row')
? __('Add/Delete criteria rows') : __('Add/Delete columns'));
$html_output .= ':<select size="1" name="'
. (($type == 'row') ? 'criteriaRowAdd' : 'criteriaColumnAdd') . '">';
$html_output .= '<option value="-3">-3</option>';
$html_output .= '<option value="-2">-2</option>';
$html_output .= '<option value="-1">-1</option>';
$html_output .= '<option value="0" selected="selected">0</option>';
$html_output .= '<option value="1">1</option>';
$html_output .= '<option value="2">2</option>';
$html_output .= '<option value="3">3</option>';
$html_output .= '</select>';
$html_output .= '</div>';
return $html_output;
}
/**
* Provides search form table's footer options
*
* @return string HTML for table footer
*/
private function _getTableFooters()
{
$html_output = '<fieldset class="tblFooters">';
$html_output .= $this->_getFootersOptions("row");
$html_output .= $this->_getFootersOptions("column");
$html_output .= '<div class="floatleft">';
$html_output .= '<input type="submit" name="modify"'
. 'value="' . __('Update Query') . '" />';
$html_output .= '</div>';
$html_output .= '</fieldset>';
return $html_output;
}
/**
* Provides a select list of database tables
*
* @return string HTML for table select list
*/
private function _getTablesList()
{
$html_output = '<div class="floatleft">';
$html_output .= '<fieldset>';
$html_output .= '<legend>' . __('Use Tables') . '</legend>';
// Build the options list for each table name
$options = '';
$numTableListOptions = 0;
foreach ($this->_criteriaTables as $key => $val) {
$options .= '<option value="' . htmlspecialchars($key) . '"' . $val . '>'
. (str_replace(' ', ' ', htmlspecialchars($key))) . '</option>';
$numTableListOptions++;
}
$html_output .= '<select name="TableList[]"'
. ' multiple="multiple" id="listTable"'
. ' size="' . (($numTableListOptions > 30) ? '15' : '7') . '">';
$html_output .= $options;
$html_output .= '</select>';
$html_output .= '</fieldset>';
$html_output .= '<fieldset class="tblFooters">';
$html_output .= '<input type="submit" name="modify" value="'
. __('Update Query') . '" />';
$html_output .= '</fieldset>';
$html_output .= '</div>';
return $html_output;
}
/**
* Provides And/Or modification cell along with Insert/Delete options
* (For modifying search form's table columns)
*
* @param integer $column_number Column Number (0,1,2) or more
* @param array $selected Selected criteria column name
*
* @return string HTML for modification cell
*/
private function _getAndOrColCell($column_number, $selected = null)
{
$html_output = '<td class="center">';
$html_output .= '<strong>' . __('Or:') . '</strong>';
$html_output .= '<input type="radio"'
. ' name="criteriaAndOrColumn[' . $column_number . ']"'
. ' value="or"' . $selected['or'] . ' />';
$html_output .= ' <strong>' . __('And:') . '</strong>';
$html_output .= '<input type="radio"'
. ' name="criteriaAndOrColumn[' . $column_number . ']"'
. ' value="and"' . $selected['and'] . ' />';
$html_output .= '<br />' . __('Ins');
$html_output .= '<input type="checkbox"'
. ' name="criteriaColumnInsert[' . $column_number . ']" />';
$html_output .= ' ' . __('Del');
$html_output .= '<input type="checkbox"'
. ' name="criteriaColumnDelete[' . $column_number . ']" />';
$html_output .= '</td>';
return $html_output;
}
/**
* 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()
{
$html_output = '<tr class="even noclick">';
$html_output .= '<th>' . __('Modify:') . '</th>';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_criteriaColumnInsert)
&& isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$html_output .= $this->_getAndOrColCell($new_column_count);
$new_column_count++;
} // end if
if (! empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
if (isset($this->_criteriaAndOrColumn[$column_index])) {
$this->_curAndOrCol[$new_column_count]
= $this->_criteriaAndOrColumn[$column_index];
}
$checked_options = array();
if (isset($this->_criteriaAndOrColumn[$column_index])
&& $this->_criteriaAndOrColumn[$column_index] == 'or'
) {
$checked_options['or'] = ' checked="checked"';
$checked_options['and'] = '';
} else {
$checked_options['and'] = ' checked="checked"';
$checked_options['or'] = '';
}
$html_output .= $this->_getAndOrColCell(
$new_column_count,
$checked_options
);
$new_column_count++;
} // end for
$html_output .= '</tr>';
return $html_output;
}
/**
* Provides Insert/Delete options for criteria inputbox
* with AND/OR relationship modification options
*
* @param integer $row_index Number of criteria row
* @param array $checked_options If checked
*
* @return string HTML
*/
private function _getInsDelAndOrCell($row_index, $checked_options)
{
$html_output = '<td class="' . $GLOBALS['cell_align_right'] . ' nowrap">';
$html_output .= '<!-- Row controls -->';
$html_output .= '<table class="nospacing nopadding">';
$html_output .= '<tr>';
$html_output .= '<td class="' . $GLOBALS['cell_align_right'] . ' nowrap">';
$html_output .= '<small>' . __('Ins:') . '</small>';
$html_output .= '<input type="checkbox"'
. ' name="criteriaRowInsert[' . $row_index . ']" />';
$html_output .= '</td>';
$html_output .= '<td class="' . $GLOBALS['cell_align_right'] . '">';
$html_output .= '<strong>' . __('And:') . '</strong>';
$html_output .= '</td>';
$html_output .= '<td>';
$html_output .= '<input type="radio"'
. ' name="criteriaAndOrRow[' . $row_index . ']" value="and"'
. $checked_options['and'] . ' />';
$html_output .= '</td>';
$html_output .= '</tr>';
$html_output .= '<tr>';
$html_output .= '<td class="' . $GLOBALS['cell_align_right'] . ' nowrap">';
$html_output .= '<small>' . __('Del:') . '</small>';
$html_output .= '<input type="checkbox"'
. ' name="criteriaRowDelete[' . $row_index . ']" />';
$html_output .= '</td>';
$html_output .= '<td class="' . $GLOBALS['cell_align_right'] . '">';
$html_output .= '<strong>' . __('Or:') . '</strong>';
$html_output .= '</td>';
$html_output .= '<td>';
$html_output .= '<input type="radio"'
. ' name="criteriaAndOrRow[' . $row_index . ']"'
. ' value="or"' . $checked_options['or'] . ' />';
$html_output .= '</td>';
$html_output .= '</tr>';
$html_output .= '</table>';
$html_output .= '</td>';
return $html_output;
}
/**
* Provides rows for criteria inputbox Insert/Delete options
* with AND/OR relationship modification options
*
* @param integer $new_row_index New row index if rows are added/deleted
* @param integer $row_index Row index
*
* @return string HTML table rows
*/
private function _getInputboxRow($new_row_index, $row_index)
{
$html_output = '';
$new_column_count = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (!empty($this->_criteriaColumnInsert)
&& isset($this->_criteriaColumnInsert[$column_index])
&& $this->_criteriaColumnInsert[$column_index] == 'on'
) {
$orFieldName = 'Or' . $new_row_index . '[' . $new_column_count . ']';
$html_output .= '<td class="center">';
$html_output .= '<input type="text"'
. ' name="Or' . $orFieldName . '" class="textfield"'
. ' style="width: ' . $this->_realwidth . '" size="20" />';
$html_output .= '</td>';
$new_column_count++;
} // end if
if (!empty($this->_criteriaColumnDelete)
&& isset($this->_criteriaColumnDelete[$column_index])
&& $this->_criteriaColumnDelete[$column_index] == 'on'
) {
continue;
}
$or = 'Or' . $new_row_index;
if (! empty($_REQUEST[$or]) && isset($_REQUEST[$or][$column_index])) {
$tmp_or = $_REQUEST[$or][$column_index];
} else {
$tmp_or = '';
}
$html_output .= '<td class="center">';
$html_output .= '<input type="text"'
. ' name="Or' . $new_row_index . '[' . $new_column_count . ']' . '"'
. ' value="' . htmlspecialchars($tmp_or) . '" class="textfield"'
. ' style="width: ' . $this->_realwidth . '" size="20" />';
$html_output .= '</td>';
if (!empty(${$or}) && isset(${$or}[$column_index])) {
$GLOBALS[${'cur' . $or}][$new_column_count]
= ${$or}[$column_index];
}
$new_column_count++;
} // end for
return $html_output;
}
/**
* Provides rows for criteria inputbox Insert/Delete options
* with AND/OR relationship modification options
*
* @return string HTML table rows
*/
private function _getInsDelAndOrCriteriaRows()
{
$html_output = '';
$new_row_count = 0;
$odd_row = true;
$checked_options = array();
for (
$row_index = 0;
$row_index <= $this->_criteria_row_count;
$row_index++
) {
if (isset($this->_criteriaRowInsert[$row_index])
&& $this->_criteriaRowInsert[$row_index] == 'on'
) {
$checked_options['or'] = ' checked="checked"';
$checked_options['and'] = '';
$html_output .= '<tr class="' . ($odd_row ? 'odd' : 'even')
. ' noclick">';
$html_output .= $this->_getInsDelAndOrCell(
$new_row_count, $checked_options
);
$html_output .= $this->_getInputboxRow(
$new_row_count, $row_index
);
$new_row_count++;
$html_output .= '</tr>';
$odd_row =! $odd_row;
} // end if
if (isset($this->_criteriaRowDelete[$row_index])
&& $this->_criteriaRowDelete[$row_index] == 'on'
) {
continue;
}
if (isset($this->_criteriaAndOrRow[$row_index])) {
$this->_curAndOrRow[$new_row_count]
= $this->_criteriaAndOrRow[$row_index];
}
if (isset($this->_criteriaAndOrRow[$row_index])
&& $this->_criteriaAndOrRow[$row_index] == 'and'
) {
$checked_options['and'] = ' checked="checked"';
$checked_options['or'] = '';
} else {
$checked_options['or'] = ' checked="checked"';
$checked_options['and'] = '';
}
$html_output .= '<tr class="' . ($odd_row ? 'odd' : 'even')
. ' noclick">';
$html_output .= $this->_getInsDelAndOrCell(
$new_row_count, $checked_options
);
$html_output .= $this->_getInputboxRow(
$new_row_count, $row_index
);
$new_row_count++;
$html_output .= '</tr>';
$odd_row =! $odd_row;
} // end for
$this->_new_row_count = $new_row_count;
return $html_output;
}
/**
* Provides SELECT clause for building SQL query
*
* @return string Select clause
*/
private function _getSelectClause()
{
$select_clause = '';
$select_clauses = array();
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_curField[$column_index])
&& isset($this->_curShow[$column_index])
&& $this->_curShow[$column_index] == 'on'
) {
$select_clauses[] = $this->_curField[$column_index];
}
} // end for
if ($select_clauses) {
$select_clause = 'SELECT '
. htmlspecialchars(implode(", ", $select_clauses)) . "\n";
}
return $select_clause;
}
/**
* Provides WHERE clause for building SQL query
*
* @return string Where clause
*/
private function _getWhereClause()
{
$where_clause = '';
$criteria_cnt = 0;
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_curField[$column_index])
&& ! empty($this->_curCriteria[$column_index])
&& $column_index
&& isset($last_where)
&& isset($this->_curAndOrCol)
) {
$where_clause .= ' '
. strtoupper($this->_curAndOrCol[$last_where]) . ' ';
}
if (! empty($this->_curField[$column_index])
&& ! empty($this->_curCriteria[$column_index])
) {
$where_clause .= '(' . $this->_curField[$column_index] . ' '
. $this->_curCriteria[$column_index] . ')';
$last_where = $column_index;
$criteria_cnt++;
}
} // end for
if ($criteria_cnt > 1) {
$where_clause = '(' . $where_clause . ')';
}
// OR rows ${'cur' . $or}[$column_index]
if (! isset($this->_curAndOrRow)) {
$this->_curAndOrRow = array();
}
for (
$row_index = 0;
$row_index <= $this->_criteria_row_count;
$row_index++
) {
$criteria_cnt = 0;
$qry_orwhere = '';
$last_orwhere = '';
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
if (! empty($this->_curField[$column_index])
&& ! empty($_REQUEST['Or' . $row_index][$column_index])
&& $column_index
) {
$qry_orwhere .= ' '
. strtoupper($this->_curAndOrCol[$last_orwhere]) . ' ';
}
if (! empty($this->_curField[$column_index])
&& ! empty($_REQUEST['Or' . $row_index][$column_index])
) {
$qry_orwhere .= '(' . $this->_curField[$column_index]
. ' '
. $_REQUEST['Or' . $row_index][$column_index]
. ')';
$last_orwhere = $column_index;
$criteria_cnt++;
}
} // end for
if ($criteria_cnt > 1) {
$qry_orwhere = '(' . $qry_orwhere . ')';
}
if (! empty($qry_orwhere)) {
$where_clause .= "\n"
. strtoupper(
isset($this->_curAndOrRow[$row_index])
? $this->_curAndOrRow[$row_index] . ' '
: ''
)
. $qry_orwhere;
} // end if
} // end for
if (! empty($where_clause) && $where_clause != '()') {
$where_clause = 'WHERE ' . htmlspecialchars($where_clause) . "\n";
} // end if
return $where_clause;
}
/**
* Provides ORDER BY clause for building SQL query
*
* @return string Order By clause
*/
private function _getOrderByClause()
{
$orderby_clause = '';
$orderby_clauses = array();
for (
$column_index = 0;
$column_index < $this->_criteria_column_count;
$column_index++
) {
// if all columns are chosen with * selector,
// then sorting isn't available
// Fix for Bug #570698
if (! empty($this->_curField[$column_index])
&& ! empty($this->_curSort[$column_index])
) {
if (substr($this->_curField[$column_index], -2) == '.*') {
continue;
}
$orderby_clauses[] = $this->_curField[$column_index] . ' '
. $this->_curSort[$column_index];
}
} // end for
if ($orderby_clauses) {
$orderby_clause = 'ORDER BY '
. htmlspecialchars(implode(", ", $orderby_clauses)) . "\n";
}
return $orderby_clause;
}
/**
* Provides UNIQUE columns and INDEX columns present in criteria tables
*
* @param array $all_tables Tables involved in the search
* @param array $all_columns Columns involved in the search
* @param array $where_clause_columns Columns having criteria where clause
*
* @return array having UNIQUE and INDEX columns
*/
private function _getIndexes($all_tables, $all_columns,
$where_clause_columns
) {
$unique_columns = array();
$index_columns = array();
foreach ($all_tables as $table) {
$indexes = $GLOBALS['dbi']->getTableIndexes($this->_db, $table);
foreach ($indexes as $index) {
$column = $table . '.' . $index['Column_name'];
if (isset($all_columns[$column])) {
if ($index['Non_unique'] == 0) {
if (isset($where_clause_columns[$column])) {
$unique_columns[$column] = 'Y';
} else {
$unique_columns[$column] = 'N';
}
} else {
if (isset($where_clause_columns[$column])) {
$index_columns[$column] = 'Y';
} else {
$index_columns[$column] = 'N';
}
}
}
} // end while (each index of a table)
} // end while (each table)
return array(
'unique' => $unique_columns,
'index' => $index_columns
);
}
/**
* Provides UNIQUE columns and INDEX columns present in criteria tables
*
* @param array $all_tables Tables involved in the search
* @param array $all_columns Columns involved in the search
* @param array $where_clause_columns Columns having criteria where clause
*
* @return array having UNIQUE and INDEX columns
*/
private function _getLeftJoinColumnCandidates($all_tables, $all_columns,
$where_clause_columns
) {
$GLOBALS['dbi']->selectDb($this->_db);
// Get unique columns and index columns
$indexes = $this->_getIndexes(
$all_tables, $all_columns, $where_clause_columns
);
$unique_columns = $indexes['unique'];
$index_columns = $indexes['index'];
list($candidate_columns, $needsort)
= $this->_getLeftJoinColumnCandidatesBest(
$all_tables, $where_clause_columns, $unique_columns, $index_columns
);
// 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 $candidate_columns;
}
$vg = array();
$sg = array();
foreach ($candidate_columns as $column => $is_where) {
$table = explode('.', $column);
$table = $table[0];
if ($is_where == 'Y') {
$vg[$column] = $table;
} else {
$sg[$column] = $table;
}
}
if (count($vg) > 0) {
$candidate_columns = $vg;
// Candidates restricted in index+where
} else {
$candidate_columns = $sg;
// None of the candidates where in a where-clause
}
return $candidate_columns;
}
/**
* Provides the main table to form the LEFT JOIN clause
*
* @param array $all_tables Tables involved in the search
* @param array $all_columns Columns involved in the search
* @param array $where_clause_columns Columns having criteria where clause
* @param array $where_clause_tables Tables having criteria where clause
*
* @return string table name
*/
private function _getMasterTable($all_tables, $all_columns,
$where_clause_columns, $where_clause_tables
) {
if (count($where_clause_tables) == 1) {
// If there is exactly one column that has a decent where-clause
// we will just use this
$master = key($where_clause_tables);
return $master;
}
// Now let's find out which of the tables has an index
// (When the control user is the same as the normal user
// because he is using one of his databases as pmadb,
// the last db selected is not always the one where we need to work)
$candidate_columns = $this->_getLeftJoinColumnCandidates(
$all_tables, $all_columns, $where_clause_columns
);
// If our array of candidates has more than one member we'll just
// find the smallest table.
// Of course the actual query would be faster if we check for
// the Criteria which gives the smallest result set in its table,
// but it would take too much time to check this
if (!(count($candidate_columns) > 1)) {
reset($candidate_columns);
$master = current($candidate_columns); // Only one single candidate
return $master;
}
// Of course we only want to check each table once
$checked_tables = $candidate_columns;
$tsize = array();
$csize = array();
foreach ($candidate_columns as $table) {
if ($checked_tables[$table] != 1) {
$tsize[$table] = PMA_Table::countRecords(
$this->_db,
$table,
false
);
$checked_tables[$table] = 1;
}
$csize[$table] = $tsize[$table];
}
asort($csize);
reset($csize);
$master = key($csize); // Smallest
return $master;
}
/**
* Provides columns and tables that have valid where clause criteria
*
* @return array
*/
private function _getWhereClauseTablesAndColumns()
{
$where_clause_columns = array();
$where_clause_tables = array();
// Now we need all tables that we have in the where clause
for (
$column_index = 0, $nb = count($this->_criteria);
$column_index < $nb;
$column_index++
) {
$current_table = explode('.', $_POST['criteriaColumn'][$column_index]);
if (empty($current_table[0]) || empty($current_table[1])) {
continue;
} // end if
$table = str_replace('`', '', $current_table[0]);
$column = str_replace('`', '', $current_table[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[$column_index])) {
if (substr($this->_criteria[$column_index], 0, 1) == '='
|| stristr($this->_criteria[$column_index], 'is')
) {
$where_clause_columns[$column] = $column;
$where_clause_tables[$table] = $table;
}
} // end if
} // end for
return array(
'where_clause_tables' => $where_clause_tables,
'where_clause_columns' => $where_clause_columns
);
}
/**
* Provides FROM clause for building SQL query
*
* @param array $cfgRelation Relation Settings
*
* @return string FROM clause
*/
private function _getFromClause($cfgRelation)
{
$from_clause = '';
if (isset($_POST['criteriaColumn']) && count($_POST['criteriaColumn']) > 0) {
// Initialize some variables
$all_tables = $all_columns = array();
// We only start this if we have fields, otherwise it would be dumb
foreach ($_POST['criteriaColumn'] as $value) {
$parts = explode('.', $value);
if (! empty($parts[0]) && ! empty($parts[1])) {
$table = str_replace('`', '', $parts[0]);
$all_tables[$table] = $table;
$all_columns[] = $table . '.' . str_replace('`', '', $parts[1]);
}
} // end while
// Create LEFT JOINS out of Relations
if ($cfgRelation['relwork'] && count($all_tables) > 0) {
// Get tables and columns with valid where clauses
$valid_where_clauses = $this->_getWhereClauseTablesAndColumns();
$where_clause_tables = $valid_where_clauses['where_clause_tables'];
$where_clause_columns = $valid_where_clauses['where_clause_columns'];
// Get master table
$master = $this->_getMasterTable(
$all_tables, $all_columns,
$where_clause_columns, $where_clause_tables
);
$from_clause = PMA_Util::backquote($master)
. PMA_getRelatives($all_tables, $master);
} // end if ($cfgRelation['relwork'] && count($all_tables) > 0)
} // end count($_POST['criteriaColumn']) > 0
// 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($from_clause) && isset($all_tables)) {
$from_clause = implode(', ', $all_tables);
}
return $from_clause;
}
/**
* Provides the generated SQL query
*
* @param array $cfgRelation Relation Settings
*
* @return string SQL query
*/
private function _getSQLQuery($cfgRelation)
{
$sql_query = '';
// get SELECT clause
$sql_query .= $this->_getSelectClause();
// get FROM clause
$from_clause = $this->_getFromClause($cfgRelation);
if (! empty($from_clause)) {
$sql_query .= 'FROM ' . htmlspecialchars($from_clause) . "\n";
}
// get WHERE clause
$sql_query .= $this->_getWhereClause();
// get ORDER BY clause
$sql_query .= $this->_getOrderByClause();
return $sql_query;
}
/**
* Provides the generated QBE form
*
* @param array $cfgRelation Relation Settings
*
* @return string QBE form
*/
public function getSelectionForm($cfgRelation)
{
$html_output = '<form action="db_qbe.php" method="post" id="formQBE">';
$html_output .= '<fieldset>';
if ($GLOBALS['cfgRelation']['savedsearcheswork']) {
$html_output .= $this->_getSavedSearchesField();
}
$html_output .= '<table class="data" style="width: 100%;">';
// Get table's <tr> elements
$html_output .= $this->_getColumnNamesRow();
$html_output .= $this->_getSortRow();
$html_output .= $this->_getShowRow();
$html_output .= $this->_getCriteriaInputboxRow();
$html_output .= $this->_getInsDelAndOrCriteriaRows();
$html_output .= $this->_getModifyColumnsRow();
$html_output .= '</table>';
$this->_new_row_count--;
$url_params = array();
$url_params['db'] = $this->_db;
$url_params['criteriaColumnCount'] = $this->_new_column_count;
$url_params['rows'] = $this->_new_row_count;
$html_output .= PMA_URL_getHiddenInputs($url_params);
$html_output .= '</fieldset>';
// get footers
$html_output .= $this->_getTableFooters();
// get tables select list
$html_output .= $this->_getTablesList();
$html_output .= '</form>';
$html_output .= '<form action="db_qbe.php" method="post">';
$html_output .= PMA_URL_getHiddenInputs(array('db' => $this->_db));
// get SQL query
$html_output .= '<div class="floatleft">';
$html_output .= '<fieldset>';
$html_output .= '<legend>'
. sprintf(
__('SQL query on database <b>%s</b>:'),
PMA_Util::getDbLink($this->_db)
);
$html_output .= '</legend>';
$text_dir = 'ltr';
$html_output .= '<textarea cols="80" name="sql_query" id="textSqlquery"'
. ' rows="' . ((count($this->_criteriaTables) > 30) ? '15' : '7') . '"'
. ' dir="' . $text_dir . '">';
$html_output .= $this->_getSQLQuery($cfgRelation);
$html_output .= '</textarea>';
$html_output .= '</fieldset>';
// displays form's footers
$html_output .= '<fieldset class="tblFooters">';
$html_output .= '<input type="hidden" name="submit_sql" value="1" />';
$html_output .= '<input type="submit" value="' . __('Submit Query') . '" />';
$html_output .= '</fieldset>';
$html_output .= '</div>';
$html_output .= '</form>';
return $html_output;
}
/**
* Get fields to display
*
* @return string
*/
private function _getSavedSearchesField()
{
$html_output = __('Saved bookmarked search:');
$html_output .= ' <select name="searchId" id="searchId">';
$html_output .= '<option value="">' . __('New bookmark') . '</option>';
$currentSearch = $this->_getCurrentSearch();
$currentSearchId = null;
$currentSearchName = null;
if (null != $currentSearch) {
$currentSearchId = $currentSearch->getId();
$currentSearchName = $currentSearch->getSearchName();
}
foreach ($this->_savedSearchList as $id => $name) {
$html_output .= '<option value="' . htmlspecialchars($id)
. '" ' . (
$id == $currentSearchId
? 'selected="selected" '
: ''
)
. '>'
. htmlspecialchars($name)
. '</option>';
}
$html_output .= '</select>';
$html_output .= '<input type="text" name="searchName" id="searchName" '
. 'value="' . $currentSearchName . '" />';
$html_output .= '<input type="hidden" name="action" id="action" value="" />';
$html_output .= '<input type="submit" name="saveSearch" id="saveSearch" '
. 'value="' . __('Create bookmark') . '" />';
if (null !== $currentSearchId) {
$html_output .= '<input type="submit" name="updateSearch" '
. 'id="updateSearch" value="' . __('Update bookmark') . '" />';
$html_output .= '<input type="submit" name="deleteSearch" '
. 'id="deleteSearch" value="' . __('Delete bookmark') . '" />';
}
return $html_output;
}
/**
* Initialize _criteria_column_count
*
* @return int Previous number of columns
*/
private function _initializeCriteriasCount()
{
// sets column count
$criteriaColumnCount = PMA_ifSetOr(
$_REQUEST['criteriaColumnCount'],
3,
'numeric'
);
$criteriaColumnAdd = PMA_ifSetOr(
$_REQUEST['criteriaColumnAdd'],
0,
'numeric'
);
$this->_criteria_column_count = max(
$criteriaColumnCount + $criteriaColumnAdd,
0
);
// sets row count
$rows = PMA_ifSetOr($_REQUEST['rows'], 0, 'numeric');
$criteriaRowAdd = PMA_ifSetOr($_REQUEST['criteriaRowAdd'], 0, 'numeric');
$this->_criteria_row_count = max($rows + $criteriaRowAdd, 0);
return $criteriaColumnCount;
}
/**
* Get best
*
* @param array $all_tables All tables
* @param array $where_clause_columns Columns with where clause
* @param array $unique_columns Unique columns
* @param array $index_columns Indexed columns
*
* @return array
*/
private function _getLeftJoinColumnCandidatesBest(
$all_tables, $where_clause_columns, $unique_columns, $index_columns
) {
// now we want to find the best.
if (isset($unique_columns) && count($unique_columns) > 0) {
$candidate_columns = $unique_columns;
$needsort = 1;
return array($candidate_columns, $needsort);
} elseif (isset($index_columns) && count($index_columns) > 0) {
$candidate_columns = $index_columns;
$needsort = 1;
return array($candidate_columns, $needsort);
} elseif (isset($where_clause_columns) && count($where_clause_columns) > 0) {
$candidate_columns = $where_clause_columns;
$needsort = 0;
return array($candidate_columns, $needsort);
} else {
$candidate_columns = $all_tables;
$needsort = 0;
return array($candidate_columns, $needsort);
}
}
}
?>
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