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Add a direct_upload: true option to file_field_tag and Form#file_field

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Then users don't have to bother with manually referring to internal routes.
This commit is contained in:
David Heinemeier Hansson 2017-07-28 15:13:22 -05:00
parent fd438769cc
commit 696b8c6f43
2 changed files with 19 additions and 1 deletions
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2
README.md
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@ -116,7 +116,7 @@ Active Storage, with its included JavaScript library, supports uploading directl
2. Annotate file inputs with the direct upload URL.
```ruby
<%= form.file_field :attachments, multiple: true, data: { direct_upload_url: rails_direct_uploads_url } %>
<%= form.file_field :attachments, multiple: true, direct_upload: true %>
```
3. That's it! Uploads begin upon form submission.

18
app/helpers/active_storage/file_field_with_direct_upload_helper.rb Normal file
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@ -0,0 +1,18 @@
module ActiveStorage
# Temporary hack to overwrite the default file_field_tag and Form#file_field to accept a direct_upload: true option
# that then gets replaced with a data-direct-upload-url attribute with the route prefilled.
module FileFieldWithDirectUploadHelper
def file_field_tag(name, options = {})
text_field_tag(name, nil, convert_direct_upload_option_to_url(options.merge(type: :file)))
end
def file_field(object_name, method, options = {})
ActionView::Helpers::Tags::FileField.new(object_name, method, self, convert_direct_upload_option_to_url(options)).render
end
private
def convert_direct_upload_option_to_url(options)
options.merge('data-direct-upload-url': rails_direct_uploads_url) if options.delete(:direct_upload)
end
end
end