在提交事务之前显示日志文件.仅在用户确认时提交


Display logfile before committing transaction. Only commit if user confirms

当我更新数据中的记录时,我想在提交事务之前向用户显示更新日志,并提供继续或回滚的选项。

将更新提交到数据库的代码遵循以下格式:-

<?php
include 'submitLogger.php';
// Begin logging
ini_set( "error_log", $logFile );
ini_set( "log_errors", "On" );
ini_set( "display_errors", "Off" );
error_log( "Log file '" . $logFile . "' created" );
// Open the database
.
.
error_log( "Connect OK" );
.
.
error_log( "Transaction started (autocommit OFF)'n" ); 
.
.
error_log( "Processing " . count( $deletes ) . " item(s) marked for deletion..." ); 
.
.

// commit changes
error_log( "Committing changes..." ); 
if ( mysqli_commit( $link ) === false ) {
  mysqli_rollback( $link );
  error_log( "Commit failed. Transaction rolled back." ); 
  $response['error'] = "Could not commit changes. Transaction rolled back.";
} else {
  error_log( "Commit successful!" ); 
  $response['success'] = "Success!";
}
// close DB connection
.
.
// Return result
.
.

这是加载上述更新代码然后显示日志文件的代码,但在提交事务后:-

<script type="text/javascript">
$(document).ready( function() {

  // send AJAX request to perform the updates and begin logging
  $.post(
    '../lib/updateMenu.php', 
    sendData,
    function( response ) {
      // was it successful?
      if ( typeof response.success === 'undefined' ) {
        // no - show alert
        if ( response.error ) {
          alert( response.error );
        }
        console.error( "Amend not successful" );
        console.error( response );
        return;
      }
      // delete the AmendmenuAmendselected program window to force a reload on next click
      $( "#programWindowAmendmenuAmendselected" ).remove();
    },
    "json"
  ).error(function(jqXHR, textStatus, errorThrown) {
    alert( 'Unexpected error: ' + textStatus + ' ' + errorThrown );
    console.error( 'Unexpected error during amend: ' + textStatus + ' ' + errorThrown );
    console.error(jqXHR);
  }).complete(function() {
    // once a reply is received, stop the logging
    ajaxLogtail.stopTail();      
  });
  // begin querying log file
  var ajaxLogtail = new AjaxLogtail( '../lib/ajaxLogtail.php?logfile=' + logFile, "programWindowAmendmenuSubmit" );  
  ajaxLogtail.startTail();
});
</script>

我不知道如何拆分它以便我可以显示日志文件,然后,如果没有任何更新错误,则提交事务。

请问有人有一个好主意可以帮忙吗?

只要我知道你做不到。至少不是用 php。Php是服务器端,脚本代码运行。它从第一行运行到最后一行,停止。

但是,您可以运行选择并告诉在示例删除时将删除多少条记录,将这些数据提供给 ajax,然后在确认执行真正的删除操作(并提交更改)时。

但是,您可能会(如果您的 Web 应用程序被很多人使用)遇到这样的情况:您的 ajax 找到要删除的 25 个元素,而真正的删除查询将删除 26 个或更多。为了更好地重新考虑您的逻辑,并在删除查询后生成日志。