abhas/gist:1466484

Created December 12, 2011 10:36

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How to edit nested rails forms with file attachments

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gistfile1.haml

	= f.fields_for :attachments do \|att\|
	= att.label :file
	- if att.object.new?
	= att.file_field :file
	- else
	= att.object.file_name

Author

abhas commented Dec 12, 2011

I was working with a class which has_many attachments and accepts_nested_attributes_for them. The attachments just contain one field - an binary file attachment. I was extremely confused about how to handle the "edit view" of the form.

There is now way to pre-populate the filename of a file field via HTML. This is a good security measure. Its just that this took many hours (spread over as many days) to figure out how to enable a user to upload multiple files while showing the names and links to ones uploaded earlier.

A wonderful and fuzzy feeling of accomplishment!

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