如何正确地将 record.image_integrity_error 添加到现有条件？

Question

历史：

我正在用这个 gem 构建一个对象：https://github.com/schneems/wicked/wiki/Building-Partial-Objects-Step-by-Step

validates :name,      :presence => true, :if => :active_or_name?
validates :details,   :presence => true, :if => :active_or_details?
validates :image,     presence: true, image_size: { width: { min: 400 }, 
  height: { min: 400 } }, :file_size => { :maximum => 5.megabytes.to_i }, 
  if: :active_or_details?

具有以下功能：

def active?
  status == 'active'
end

def active_or_name?
  status.include?('name') || active?
end

def active_or_details?
  status.include?('details') || active?
end

我设置状态的方式是：

params[:item][:status] = step.to_s
params[:item][:status] = 'active' if step == steps.last

最后一步是详情页后2步，所以不应该是'active'。

在历史记录（上面的 link）中，您可以看到我应该将以下内容添加到图像验证的 if: 中：

-> (record) { record.image_integrity_error.blank? }

我试图用

添加上面的行

validates :image,     presence: true, image_size: { width: { min: 400 }, 
height: { min: 400 } }, :file_size => { :maximum => 5.megabytes.to_i },
if: :active_or_details? && -> (record) { record.image_integrity_error.blank? }

这会导致页面上的验证仅显示 Image You are not allowed to upload "txt" files, allowed types: jpg, jpeg, gif, png

但现在验证发生在之前需要提交步骤的每个页面上 Image can't be blank。

我试图用 if/else 语句将 -> (record) { record.image_integrity_error.blank? } 重构为 active_or_details?。然后是详情页的Image can't be blankreturns.

请指教

Answer 1

根据@engineersmnky 的评论：if 键控条件可以作为 Array 提交，例如if: [:active_or_details?,-> (record) { record.image_integrity_error.blank? }]

如何正确地将 record.image_integrity_error 添加到现有条件？

How to correctly add the record.image_integrity_error to existing condition?

ruby

validation

ruby-on-rails

carrierwave