CODEWITHSUNDEEP
ruby-on-railsamazon-s3rails-activestorage
Dan Andreasson
Dan Andreasson

Reputation: 16212

Default attachment when has_one_attached

I have a user model with a has_one_attached :avatar, using ActiveStorage. Avatar is optional, but when it isn't present I want to show a default instead. I store all attachments on Amazon S3, and prefer to store the default there as well.

I'd much prefer if I was able to use variant methods on the default avatar as well. 

user.avatar.variant(resize: "100x100")

Any suggestions on how to achieve this? Can I create some sort of default attachment that isn't linked to any specific record and use that when the avatar isn't present?

Upvotes: 6

Views: 3044

Answers (2)

Tovi Newman
Tovi Newman

Reputation: 715

Instead of attaching the default image, just check if there is an image attached and if not, display the default image. The present? method will not work in this case, use attached? instead. 

def display_avatar(user)
  if user.avatar.attached?
    user.avatar
  else
    'default.png'
  end
end

Upvotes: 3

Ruturaj Bisure
Ruturaj Bisure

Reputation: 159

There are two methods,

  1. Default

In model use this,(assuming you are using paperclip gem)

:default_url => "/assets/:style/missing.jpeg"

2.Manual

You have to add helper method as below,

  def avatar_check user
      if user.avatar.image.present?
        image_tag user.image_url :thumb
      else
        image_tag 'default.jpg'
      end
    end

Save your default.jpg in assets.

In view call below,

User.all.each do |u|
= avatar_check u

And I am not sure about varient

Upvotes: -1

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