girl with PaperClip 4.0
Does anyone know the proper way to create PaperClip 4.0 attachments with factory_girl, bypassing any of the PaperClip processing and validation?
I used to just be able to do the following in my factory:
factory :attachment do
supporting_documentation_file_name { 'test.pdf' }
supporting_documentation_content_type { 'application/pdf' }
supporting_documentation_file_size { 1024 }
# ...
end
This would basically trick PaperClip into thinking that there was a valid attachment.
After upgrading from 3.5.3 to 4.0, I now get a validation error:
ActiveRecord::RecordInvalid: Validation failed: Image translation missing: en.activerecord.errors.models.attachment.attributes.supporting_documentation.spoofed_media_type
NOTE: The original discussion for PaperClip 3.X is here: How Do I Use Factory Girl To Generate A Paperclip Attachment?
The issue appears to be caused by line 61 in media_type_spoof_detector.
Paperclip is trying to find the mime type of the "file" you have uploaded. When there isn't one, it's failing validation to protect you from file type spoofing.
I haven't tried this myself, but perhaps your best bet would be to use a real file, and set it using the fixture_file_upload
method from ActionDispatch::TestProcess
.
factory :attachment do
supporting_documentation { fixture_file_upload 'test.pdf', 'application/pdf' }
# This is to prevent Errno::EMFILE: Too many open files
after_create do |attachment, proxy|
proxy.supporting_documentation.close
end
end
You will need to include ActionDispatch::TestProcess
in test_helper.rb
This was first posted here.
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