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

问题

History: How to display a presence validation conditionally in combination with carrierwave?

I'm building an object with this gem: 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?

with the functions:

def active?
  status == 'active'
end

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

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

how I set the status is:

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

The last step is 2 steps after the details page, so it should not be 'active'.

In the History (link above) you can read that I should be adding the following to the if: of the image validation:

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

I tried to add the above line with

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? }

This causes the validation on the page to show only the Image You are not allowed to upload "txt" files, allowed types: jpg, jpeg, gif, png

But now the validation happens on each page of the before needed submission steps with Image can't be blank.

I tried to refactor the -> (record) { record.image_integrity_error.blank? } into the active_or_details? with an if/else statement. Then the Image can't be blank returns on the details page .

Please advise.

回答1:

As per comment @engineersmnky: if keyed conditions can be submitted as an Array e.g. if: [:active_or_details?,-> (record) { record.image_integrity_error.blank? }]

来源：https://stackoverflow.com/questions/48120545/how-to-correctly-add-the-record-image-integrity-error-to-existing-condition

标签

ruby-on-rails

ruby

validation

carrierwave