rails-activestorage

Is there a way to validate attachments with ActiveStorage? For example, if I want to validate the content type or the file size? Something like Paperclip's approach would be great! validates_attachment_content_type :logo, content_type: /\Aimage\/.*\Z/ validates_attachment_size :logo, less_than: 1.megabytes Well, it ain't pretty, but this may be necessary until they bake in some validation: validate :logo_validation def logo_validation if logo.attached? if logo.blob.byte_size > 1000000 logo.purge errors[:base] << 'Too big' elsif !logo.blob.content_type.starts_with?('image/') logo.purge errors[

Does anyone know how the checksum field in active_storage_blobs is calculated when using ActiveStorage on rails 5.2+? For bonus points, does anyone know how I can get it to use an md5 checksum that would match the one from the md5 CLI command? Lets Break It Down I know i'm a bit late to the party, but this is more for those that come across this in a search for answers. So here it is.. Background: Rails introduced loads of new features in version 5.2, one of which was ActiveStorage . The official final release came out on April 9th, 2018. Rails 5.2 Official Release Notes Disclaimer: So to be

I implemented the code for removing images from my User model. Rails 5.2 Active Storage purging/deleting attachements I think that it removed the image OK, but now I'm getting an error undefined method `signed_id' for nil:NilClass My view ( images.html.erb ): <% if @user.images.attached? %> <% @user.images.each do |image| %> <%= image_tag(url_for(image))%> <%= link_to 'Remove', delete_image_attachment_user_url(image.signed_id), method: :delete, data: { confirm: 'Are you sure?' } %> <% end %> <% end %> The controller def images end def delete_image_attachment @image = ActiveStorage::Blob.find

On Rails 5.2 I am trying to save an avatar via ActiveStorage but it seems as though not image oriantation data is being saved in the active storage blob. I am saving the avatar via a file_field on a create action my #user model has_one_attached :avatar private def avatar_validation if avatar.attached? if avatar.blob.byte_size > 1000000 avatar.purge errors.add(:avatar, 'file is too large') elsif !avatar.blob.content_type.in?(%w[image/png image/jpg image/jpeg]) avatar.purge errors.add(:avatar, 'file type needs to be JPEG, JPG, or PNG') end end end I have been reading some documentation for

I have updated my rails api application from 5.1 to 5.2. I am using rails api only. I am trying to use the active storage. I think the problem is due to the line config.api_only = true in config/application.rb . I did lot of google but did not find any thing how to use active storage in rails api. Here is my Gemfile : source 'https://rubygems.org' ruby '2.5.1' git_source(:github) do |repo_name| repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/") "https://github.com/#{repo_name}.git" end gem 'rails', '~> 5.2.0' gem 'pg', '>= 0.18', '< 2.0' gem 'puma', '~> 3.7' gem 'rack-cors'

When uploading files with Active Storage, when a file is finished uploading and the form gets redisplayed, for example when the validation for that form fails for some reason, the file is gone. Is there a way to cache or retain it between form redisplays? Shrine has a nice Plugin for that purpose, I'm looking for something similar for Active Storage. Here's a solution to make ActiveStorage files persist on form redisplay: f.hidden_field :image, value: f.object.image.signed_id if f.object.image.attached? f.file_field :image 来源： https://stackoverflow.com/questions/50360307/active-storage-best