CODEWITHSUNDEEP
ruby-on-railsvalidationpaperclipruby-on-rails-2
user5051602
user5051602

Reputation:

Paperclip validating when no attachment

I have a rails model in which an image is uploaded using Paperclip.

I have added validation of size for the image.

validates_attachment-size :image, less_than => 5.megabytes

When trying to save the model when there is no attachment it validates the image which is absent and fails the save.

I need to save the model if there is no image and the validation should work only when there is an image.

Upvotes: 1

Views: 993

Answers (2)

K M Rakibul Islam
K M Rakibul Islam

Reputation: 34338

First of you have a typo in your code. validates_attachment-size should be validates_attachment_size.

You wanted to do:

validates_attachment_size :image, less_than => 5.megabytes

This built in helper would work normally. But, this validation will force the validation of an actual attachment, means it won't work if the image is not present.

So, if you want to be sure if an image is present, you can add a custom validator where you will check the image presence. Like this:

validate :image_presence_and_size

def image_presence_and_size
  if image.present? && image_file_size < 5.megabytes
    errors.add(:file_size, "file size must be less than 5 megabytes.")
  end
end

Upvotes: 1

Aswathy
Aswathy

Reputation: 674

Try the following code.

validate :image_present

def image_present
  if image.present? && image_file_size < 2.megabytes
    errors.add(:file_size, "file size must be between 0 and 2 megabytes.")
  end
end

Here, the validation will work if there is image present in the model and will skip the validation if there is no image.

Upvotes: 0

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