PHP PMA_getSqlWithLimitClause函数代码示例

 /**
  * Test PMA_getSqlWithLimitClause
  *
  * @return void
  */
 public function testGetSqlWithLimitClause()
 {
     // Test environment.
     $GLOBALS['_SESSION']['tmpval']['pos'] = 1;
     $GLOBALS['_SESSION']['tmpval']['max_rows'] = 2;
     $GLOBALS['db'] = 'db';
     $analyzed_sql_results = PMA_parseAndAnalyze('SELECT * FROM test LIMIT 0, 10');
     $this->assertEquals('SELECT * FROM test LIMIT 1, 2 ', PMA_getSqlWithLimitClause($analyzed_sql_results));
 }

/**
 * Function to append the limit clause
 *
 * @param array $analyzed_sql analyzed sql query
 *
 * @return array
 */
function PMA_appendLimitClause($analyzed_sql)
{
    $sql_limit_to_append = ' LIMIT ' . $_SESSION['tmpval']['pos'] . ', ' . $_SESSION['tmpval']['max_rows'] . " ";
    $full_sql_query = PMA_getSqlWithLimitClause($analyzed_sql, $sql_limit_to_append);
    return array($sql_limit_to_append, $full_sql_query);
}

/**
 * Function to execute the query and send the response
 *
 * @param array      $analyzed_sql_results   analysed sql results
 * @param bool       $is_gotofile            whether goto file or not
 * @param string     $db                     current database
 * @param string     $table                  current table
 * @param bool|null  $find_real_end          whether to find real end or not
 * @param string     $sql_query_for_bookmark the sql query to be stored as bookmark
 * @param array|null $extra_data             extra data
 * @param string     $message_to_show        message to show
 * @param string     $message                message
 * @param array|null $sql_data               sql data
 * @param string     $goto                   goto page url
 * @param string     $pmaThemeImage          uri of the PMA theme image
 * @param string     $disp_query             display query
 * @param string     $disp_message           display message
 * @param string     $query_type             query type
 * @param string     $sql_query              sql query
 * @param array|null $selectedTables         array of table names selected from the
 *                                           database structure page, for an action
 *                                           like check table, optimize table,
 *                                           analyze table or repair table
 * @param string     $complete_query         complete query
 *
 * @return string html
 */
function PMA_executeQueryAndGetQueryResponse($analyzed_sql_results, $is_gotofile, $db, $table, $find_real_end, $sql_query_for_bookmark, $extra_data, $message_to_show, $message, $sql_data, $goto, $pmaThemeImage, $disp_query, $disp_message, $query_type, $sql_query, $selectedTables, $complete_query)
{
    // Handle disable/enable foreign key checks
    $default_fk_check = PMA\libraries\Util::handleDisableFKCheckInit();
    // Handle remembered sorting order, only for single table query.
    // Handling is not required when it's a union query
    // (the parser never sets the 'union' key to 0).
    // Handling is also not required if we came from the "Sort by key"
    // drop-down.
    if (PMA_isRememberSortingOrder($analyzed_sql_results) && empty($analyzed_sql_results['union']) && !isset($_REQUEST['sort_by_key'])) {
        if (!isset($_SESSION['sql_from_query_box'])) {
            PMA_handleSortOrder($db, $table, $analyzed_sql_results, $sql_query);
        } else {
            unset($_SESSION['sql_from_query_box']);
        }
    }
    $displayResultsObject = new PMA\libraries\DisplayResults($GLOBALS['db'], $GLOBALS['table'], $goto, $sql_query);
    $displayResultsObject->setConfigParamsForDisplayTable();
    // assign default full_sql_query
    $full_sql_query = $sql_query;
    // Do append a "LIMIT" clause?
    if (PMA_isAppendLimitClause($analyzed_sql_results)) {
        $full_sql_query = PMA_getSqlWithLimitClause($analyzed_sql_results);
    }
    $GLOBALS['reload'] = PMA_hasCurrentDbChanged($db);
    $GLOBALS['dbi']->selectDb($db);
    // Execute the query
    list($result, $num_rows, $unlim_num_rows, $profiling_results, $extra_data) = PMA_executeTheQuery($analyzed_sql_results, $full_sql_query, $is_gotofile, $db, $table, isset($find_real_end) ? $find_real_end : null, isset($sql_query_for_bookmark) ? $sql_query_for_bookmark : null, isset($extra_data) ? $extra_data : null);
    // No rows returned -> move back to the calling page
    if (0 == $num_rows && 0 == $unlim_num_rows || $analyzed_sql_results['is_affected']) {
        $html_output = PMA_getQueryResponseForNoResultsReturned($analyzed_sql_results, $db, $table, isset($message_to_show) ? $message_to_show : null, $num_rows, $displayResultsObject, $extra_data, $pmaThemeImage, isset($result) ? $result : null, $sql_query, isset($complete_query) ? $complete_query : null);
    } else {
        // At least one row is returned -> displays a table with results
        $html_output = PMA_getQueryResponseForResultsReturned(isset($result) ? $result : null, $analyzed_sql_results, $db, $table, isset($message) ? $message : null, isset($sql_data) ? $sql_data : null, $displayResultsObject, $pmaThemeImage, $unlim_num_rows, $num_rows, isset($disp_query) ? $disp_query : null, isset($disp_message) ? $disp_message : null, $profiling_results, isset($query_type) ? $query_type : null, isset($selectedTables) ? $selectedTables : null, $sql_query, isset($complete_query) ? $complete_query : null);
    }
    // Handle disable/enable foreign key checks
    PMA\libraries\Util::handleDisableFKCheckCleanup($default_fk_check);
    return $html_output;
}

/**
 * Function to execute the query and send the response
 *
 * @param array      $analyzed_sql_results   analysed sql results
 * @param bool       $is_gotofile            whether goto file or not
 * @param string     $db                     current database
 * @param string     $table                  current table
 * @param bool|null  $find_real_end          whether to find real end or not
 * @param string     $sql_query_for_bookmark the sql query to be stored as bookmark
 * @param array|null $extra_data             extra data
 * @param bool       $is_affected            whether affected or not
 * @param string     $message_to_show        message to show
 * @param string     $message                message
 * @param array|null $sql_data               sql data
 * @param string     $goto                   goto page url
 * @param string     $pmaThemeImage          uri of the PMA theme image
 * @param string     $disp_query             display query
 * @param string     $disp_message           display message
 * @param string     $query_type             query type
 * @param string     $sql_query              sql query
 * @param array      $selectedTables         array of table names selected from the
 *                                           database structure page, for an action
 *                                           like check table, optimize table,
 *                                           analyze table or repair table
 * @param string     $complete_query         complete query
 *
 * @return string html
 */
function PMA_executeQueryAndGetQueryResponse($analyzed_sql_results, $is_gotofile, $db, $table, $find_real_end, $sql_query_for_bookmark, $extra_data, $is_affected, $message_to_show, $message, $sql_data, $goto, $pmaThemeImage, $disp_query, $disp_message, $query_type, $sql_query, $selectedTables, $complete_query)
{
    // Include PMA_Index class for use in PMA_DisplayResults class
    include_once './libraries/Index.class.php';
    include_once 'libraries/DisplayResults.class.php';
    // Handle remembered sorting order, only for single table query
    // Handling is not required when it's a union query
    // (the parser never sets the 'union' key to 0)
    if (PMA_isRememberSortingOrder($analyzed_sql_results) && !isset($analyzed_sql_results['analyzed_sql'][0]['queryflags']['union'])) {
        if (!isset($_SESSION['sql_from_query_box'])) {
            PMA_handleSortOrder($db, $table, $analyzed_sql_results, $sql_query);
        } else {
            unset($_SESSION['sql_from_query_box']);
        }
    }
    $displayResultsObject = new PMA_DisplayResults($GLOBALS['db'], $GLOBALS['table'], $GLOBALS['goto'], $sql_query);
    $displayResultsObject->setConfigParamsForDisplayTable();
    // assign default full_sql_query
    $full_sql_query = $sql_query;
    // Do append a "LIMIT" clause?
    if (PMA_isAppendLimitClause($analyzed_sql_results)) {
        $full_sql_query = PMA_getSqlWithLimitClause($analyzed_sql_results['analyzed_sql'], ' LIMIT ' . $_SESSION['tmpval']['pos'] . ', ' . $_SESSION['tmpval']['max_rows'] . " ");
    }
    $GLOBALS['reload'] = PMA_hasCurrentDbChanged($db);
    $GLOBALS['dbi']->selectDb($db);
    // Execute the query
    list($result, $num_rows, $unlim_num_rows, $profiling_results, $extra_data) = PMA_executeTheQuery($analyzed_sql_results, $full_sql_query, $is_gotofile, $db, $table, isset($find_real_end) ? $find_real_end : null, isset($sql_query_for_bookmark) ? $sql_query_for_bookmark : null, isset($extra_data) ? $extra_data : null);
    // No rows returned -> move back to the calling page
    if (0 == $num_rows && 0 == $unlim_num_rows || $is_affected) {
        $html_output = PMA_getQueryResponseForNoResultsReturned($analyzed_sql_results, $db, $table, isset($message_to_show) ? $message_to_show : null, $num_rows, $displayResultsObject, $extra_data);
    } else {
        // At least one row is returned -> displays a table with results
        $html_output = PMA_getQueryResponseForResultsReturned(isset($result) ? $result : null, $analyzed_sql_results, $db, $table, isset($message) ? $message : null, isset($sql_data) ? $sql_data : null, $displayResultsObject, $pmaThemeImage, $unlim_num_rows, $num_rows, $full_sql_query, isset($disp_query) ? $disp_query : null, isset($disp_message) ? $disp_message : null, $profiling_results, isset($query_type) ? $query_type : null, isset($selectedTables) ? $selectedTables : null, $sql_query, isset($complete_query) ? $complete_query : null);
    }
    return $html_output;
}

/**
 * Generate table html when SQL statement have multiple queries
 * which return displayable results
 *
 * @param PMA_DisplayResults $displayResultsObject object
 * @param string             $db                   database name
 * @param array              $sql_data             information about SQL statement
 * @param string             $goto                 URL to go back in case of errors
 * @param string             $pmaThemeImage        path for theme images directory
 * @param string             $text_dir             text direction
 * @param string             $printview            whether printview is enabled
 * @param string             $url_query            URL query
 * @param array              $disp_mode            the display mode
 * @param string             $sql_limit_to_append  limit clause
 * @param bool               $editable             whether result set is editable
 *
 * @return string   $table_html   html content
 */
function getTableHtmlForMultipleQueries($displayResultsObject, $db, $sql_data, $goto, $pmaThemeImage, $text_dir, $printview, $url_query, $disp_mode, $sql_limit_to_append, $editable)
{
    $table_html = '';
    $tables_array = PMA_DBI_get_tables($db);
    $databases_array = PMA_DBI_get_databases_full();
    $multi_sql = implode(";", $sql_data['valid_sql']);
    $querytime_before = array_sum(explode(' ', microtime()));
    // Assignment for variable is not needed since the results are
    // looiping using the connection
    @PMA_DBI_try_multi_query($multi_sql);
    $querytime_after = array_sum(explode(' ', microtime()));
    $querytime = $querytime_after - $querytime_before;
    $sql_no = 0;
    do {
        $analyzed_sql = array();
        $is_affected = false;
        $result = PMA_DBI_store_result();
        $fields_meta = $result !== false ? PMA_DBI_get_fields_meta($result) : array();
        $fields_cnt = count($fields_meta);
        // Initialize needed params related to each query in multiquery statement
        if (isset($sql_data['valid_sql'][$sql_no])) {
            // 'Use' query can change the database
            if (stripos($sql_data['valid_sql'][$sql_no], "use ")) {
                $db = PMA_getNewDatabase($sql_data['valid_sql'][$sql_no], $databases_array);
            }
            $parsed_sql = PMA_SQP_parse($sql_data['valid_sql'][$sql_no]);
            $table = PMA_getTableNameBySQL($sql_data['valid_sql'][$sql_no], $tables_array);
            $analyzed_sql = PMA_SQP_analyze($parsed_sql);
            $is_select = isset($analyzed_sql[0]['queryflags']['select_from']);
            $unlim_num_rows = PMA_Table::countRecords($db, $table, true);
            $showtable = PMA_Table::sGetStatusInfo($db, $table, null, true);
            $url_query = PMA_generate_common_url($db, $table);
            list($is_group, $is_func, $is_count, $is_export, $is_analyse, $is_explain, $is_delete, $is_affected, $is_insert, $is_replace, $is_show, $is_maint) = PMA_getDisplayPropertyParams($sql_data['valid_sql'][$sql_no], $is_select);
            // Handle remembered sorting order, only for single table query
            if ($GLOBALS['cfg']['RememberSorting'] && !($is_count || $is_export || $is_func || $is_analyse) && isset($analyzed_sql[0]['select_expr']) && count($analyzed_sql[0]['select_expr']) == 0 && isset($analyzed_sql[0]['queryflags']['select_from']) && count($analyzed_sql[0]['table_ref']) == 1) {
                PMA_handleSortOrder($db, $table, $analyzed_sql, $sql_data['valid_sql'][$sql_no]);
            }
            // Do append a "LIMIT" clause?
            if ($_SESSION['tmp_user_values']['max_rows'] != 'all' && !($is_count || $is_export || $is_func || $is_analyse) && isset($analyzed_sql[0]['queryflags']['select_from']) && !isset($analyzed_sql[0]['queryflags']['offset']) && empty($analyzed_sql[0]['limit_clause'])) {
                $sql_limit_to_append = ' LIMIT ' . $_SESSION['tmp_user_values']['pos'] . ', ' . $_SESSION['tmp_user_values']['max_rows'] . " ";
                $sql_data['valid_sql'][$sql_no] = PMA_getSqlWithLimitClause($sql_data['valid_sql'][$sql_no], $analyzed_sql, $sql_limit_to_append);
            }
            // Set the needed properties related to executing sql query
            $displayResultsObject->__set('db', $db);
            $displayResultsObject->__set('table', $table);
            $displayResultsObject->__set('goto', $goto);
        }
        if (!$is_affected) {
            $num_rows = $result ? @PMA_DBI_num_rows($result) : 0;
        } elseif (!isset($num_rows)) {
            $num_rows = @PMA_DBI_affected_rows();
        }
        if (isset($sql_data['valid_sql'][$sql_no])) {
            $displayResultsObject->__set('sql_query', $sql_data['valid_sql'][$sql_no]);
            $displayResultsObject->setProperties($unlim_num_rows, $fields_meta, $is_count, $is_export, $is_func, $is_analyse, $num_rows, $fields_cnt, $querytime, $pmaThemeImage, $text_dir, $is_maint, $is_explain, $is_show, $showtable, $printview, $url_query, $editable);
        }
        if ($num_rows == 0) {
            continue;
        }
        // With multiple results, operations are limied
        $disp_mode = 'nnnn000000';
        $is_limited_display = true;
        // Collect the tables
        $table_html .= $displayResultsObject->getTable($result, $disp_mode, $analyzed_sql, $is_limited_display);
        // Free the result to save the memory
        PMA_DBI_free_result($result);
        $sql_no++;
    } while (PMA_DBI_more_results() && PMA_DBI_next_result());
    return $table_html;
}

/**
 * Function to append the limit clause
 *
 * @param String $full_sql_query full sql query
 * @param array  $analyzed_sql   analyzed sql query
 * @param String $display_query  display query
 *
 * @return array
 */
function PMA_appendLimitClause($full_sql_query, $analyzed_sql, $display_query)
{
    $sql_limit_to_append = ' LIMIT ' . $_SESSION['tmpval']['pos'] . ', ' . $_SESSION['tmpval']['max_rows'] . " ";
    $full_sql_query = PMA_getSqlWithLimitClause($full_sql_query, $analyzed_sql, $sql_limit_to_append);
    /**
     * @todo pretty printing of this modified query
     */
    if ($display_query) {
        // if the analysis of the original query revealed that we found
        // a section_after_limit, we now have to analyze $display_query
        // to display it correctly
        if (!empty($analyzed_sql[0]['section_after_limit']) && trim($analyzed_sql[0]['section_after_limit']) != ';') {
            $analyzed_display_query = PMA_SQP_analyze(PMA_SQP_parse($display_query));
            $display_query = $analyzed_display_query[0]['section_before_limit'] . "\n" . $sql_limit_to_append . $analyzed_display_query[0]['section_after_limit'];
        }
    }
    return array($sql_limit_to_append, $full_sql_query, isset($analyzed_display_query) ? $analyzed_display_query : null, isset($display_query) ? $display_query : null);
}