Rails 5.1:如何在Rails-UJ中覆盖允许攻击以使用自定义确认对话框



在使用jquery_ujs之前的Rails版本中,我们可以通过覆盖$.rails.allowAction替换浏览器的确认弹出窗口,如这里所述。

从使用rails-ujs的Rails 5.1 开始,不再可用$.rails.allowAction。我们如何在Rails 5中使用Rails的默认确认,而无需切换回jquery_ujs

预先感谢。

我也面临着同样的挑战,我看上去更多。在此过程中我发现的内容可以在这里阅读:https://medium.com/store2be-tech/how-to-use-sweetalert2-for-your-rails-5-1-rails-5-1-rails-ujs-ujs-confirms-without-jQuery-8A5B516B2A1

在这里最终解决方案:

(function() {
  var handleConfirm = function(element) {
    if (!allowAction(this)) {
      Rails.stopEverything(element)
    }
  }
  var allowAction = function(element) {
    if (element.getAttribute('data-confirm-swal') === null) {
      return true
    }
    showConfirmationDialog(element)
    return false
  }
  // Display the confirmation dialog
  var showConfirmationDialog = function(element) {
    var message = element.getAttribute('data-confirm-swal')
    var text = element.getAttribute('data-text')
    swal({
      title: message || 'Are you sure?',
      text: text || '',
      type: 'warning',
      showCancelButton: true,
      confirmButtonText: 'Yes',
      cancelButtonText: 'Cancel',
    }).then(function(result) {
      confirmed(element, result)
    })
  }
  var confirmed = function(element, result) {
    if (result.value) {
      // User clicked confirm button
      element.removeAttribute('data-confirm-swal')
      element.click()
    }
  }
  // Hook the event before the other rails events so it works togeter
  // with `method: :delete`.
  // See https://github.com/rails/rails/blob/master/actionview/app/assets/javascripts/rails-ujs/start.coffee#L69
  document.addEventListener('rails:attachBindings', function(e) {
    Rails.delegate(document, 'a[data-confirm-swal]', 'click', handleConfirm)
  })
}).call(this)

我还没有找到一种精美的调整方法来介绍rails_ujs,所以我和这个解决方法一起(使用coffeescript):

````

$(document).on 'mousedown', 'a[data-confirm]', (e) ->
  e.preventDefault()
  link = $(e.target)
  message = link.data 'confirm'
  modal = $('.modal.confirmation')
  modal.find('.content').text(message)
  approve = modal.find('.approve')
  approve.attr('data-method', link.data('method'))
  approve.attr('href', link.attr('href'))
  modal.modal('show')

````

Mousedown事件允许我的活动处理程序首先执行(在单击事件之前进行,Rails_ujs使用)

您可以用Rails.confirm覆盖它,例如。与咖啡本:

Rails.confirm = (message, element) ->
  # your code

例如。要显示确认文本2秒:

WAITING_CLASS = "waiting-for-confirmation"
TIMEOUT = 2000
Rails.confirm = (message, element) ->
  if element.classList.contains(WAITING_CLASS)
    true
  else
    element.dataset.beforeConfirm = element.textContent
    element.textContent = element.dataset.confirm
    element.classList.add(WAITING_CLASS)
    timeout TIMEOUT, ->
      element.classList.remove(WAITING_CLASS)
      element.textContent = element.dataset.beforeConfirm
    false

请参阅:https://github.com/rails/rails/blob/master/comateview/app/assets/javascripts/rails-ujs/features/features/confirm.coffee

timeout,只是一个简单的功能,它会倒入 setTimeout参数:

var timeout = function(time, callback) {
  setTimeout(callback, time)
}

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