Is it possible to allow the user to rename the uploaded file?
If there is a share link, will it be automatically updated. I am not able to do this since i cant first figure out how to rename the file.
You can rename the files and then change the record file name. For instance, based on this answer, you can do:
(record.image.styles.keys+[:original]).each do |style|
path = record.image.path(style)
FileUtils.move(path, File.join(File.dirname(path), new_file_name))
end
record.image_file_name = new_file_name
record.save
If you're using Amazon S3, you can do:
AWS::S3::S3Object.move_to record.image.path(style), new_file_path, record.image.bucket_name
Check this out: Paperclip renaming files after they're saved
Related
I have a Document model with a file that is uploaded to S3 using Carrierwave(fog) with my uploader (mount_uploader :file, DocumentUploader). I am also using the 'paranoia' gem's acts_as_paranoid to soft delete the documents. Upon destroy I wish to move the attached file to an 'archive' folder in the same directory. Then I plan on moving it back to the original(parent) directory when a deleted document is restored.
I have the following in my model:
skip_callback :commit, :after, :remove_file!
before_destroy :move_file_to_archive
after_restore :fetch_file_from_archive
And within the method move_file_to_archive, I establish a connection to amazon using fog and do the following to move the file to archive:
bucket = connection.directories.get(bucket_name)
file = bucket.files.get(self.file.file.path)
new_path = file.key.split('/')[0..-2].join('/') + '/archive/' + file.key.split('/')[-1]
new_file = file.copy(bucket_name, new_path)
file.destroy
The problem is that I cannot find a way to get my document object to point to the new(archived) file instead of the old one. Somehow, when the object is being destroyed, I want the self.file.path to change to the archived path instead of the original path. And then revert it when the document is being restored. Any help would be appreciated!
Got it to work myself. I added a condition to my DocumentUploader to set the path to contain /archive/ in case the document had a value present in paranoia's deleted_at field. Just doing that makes carrierwave look at the archive path if the document is currently in deleted state.
I have a paperclip instance that I am migrating my files to a different area. Originally the files were stored on my server and just given a filename based on the id of the record created and the original id. Now I'm moving them to s3 and want to update the filenames to work appropriately. I setup my paperclip config like so:
:path => ":class/:attachment/:hash-:style.:extension",
:url => ":s3_domain_url",
:hash_secret => SECRET,
:hash_data => ":class/:attachment/:id/:updated_at"
I updated the original records filenames for my files to be unique and moved them over to my s3 instance. Unfortunately now I am unable to pull down the files from s3 and I think it is because paperclip is using the wrong path for the filenames. One that is based off the path default that is now set using my config file. I want to be able to update my files file_name field so that the path is correct for the new files and I am able to download them appropriately. Is there a way to call paperclips hashing function based on my secret and hash_data directly so I can update those file_name fields and be able to pull those records now? Everything that has been uploaded since the move from my original servers seems to work appropriately.
Say you have a model User with an attachment named profile_pic;
Go into the rails console eg. rails c and then get an object for the model you have the attachment on, eg. u = User.find(100).
Now type u.profile_pic.url to get the url or u.profile_pic_file_name to get the filename.
To see the effect of other options (for example your old options) you can do;
p = u.profile_pic # gets the paperclip attachment for profile_pic
puts p.url # gets the current url
p.options.merge!(url: '/blah/:class/:attachment/:id_partition/:style/:filename')
puts p.url # now shows url with the new options
Similarly p.path will show the local file path with whatever options you pick.
Long story short, something like;
User.where('created_at < some_date').map do |x|
"#{x.id} #{x.profile_pic_file_name} #{x.profile_pic.path}"
end
should give you what you want :)
I am building an application that has a chat component to it. The application allows users to upload files to the chat. The chat is all javascript but i wanted to use Carrierwave for the uploads because i am using it elsewhere in the application. I am doing the handling of the uploads through AJAX so that i can get into Rails land and let Carrierwave take over.
I have been able to get the chat to successfully upload the files to the correct location in my S3 bucket. The thing i can't figure out is how to delete the files. Here is my code the uploads the files - this is the method that is called from the route that the AJAX call hits.
def upload
file = File.open(params[:file_0].tempfile)
uploader = ChatUploader.new
uploader.store!(file)
end
There is little to no documentation with Carrierwave on how to upload files without going through a model and basically NO documentation on how to remove files without going through a model. I assume it is possible though - i just need to know what to call. So i guess my question is how do i delete files?
UPDATE (11/23)
I got the code to save and delete files from S3 using these methods:
# code to save the file
def upload
file = File.open(params[:file_0].tempfile)
uploader = ChatUploader.new
uploader.store!(file)
uploader.store_path()
end
# code to remove files
def remove_file
file = params[:file]
uploader = ChatUploader.new
uploader.retrieve_from_store!(file)
uploader.remove!
end
My only issue now is that the filename for the uploaded file is not correct. It saves all files with a "RackMultipart" and then some numbers which look like a date, time, and identifier? (example: RackMultipart20141123-17740-1tq4j1g) Need to try and use the original filename plus maybe a timestamp for uniqueness.
I believe it has something to do with these two lines:
file = File.open(params[:file_0].tempfile)
and
uploader.store!(file)
My user uploads a zip file with 3 files (A.ttf, A.svg, A.otf) and I want to store the original zip plus the 3 font files inside it. I've created the 3 versions with this code
version :ttf
process :font => :ttf
end
version :svg
process :font => :svg
end
version :otf
process :font => :otf
end
It successfully saves 4 copies of the original file, all with the proper file name. However, I don't know how to get CarrierWave to store the individual files. This code doesn't work. :(
def font(format)
new_file = nil
# Loop through the zip file and extract the files
Zip::ZipFile.open(#file.file) do |files|
files.each do |f|
next unless f.file?
filename = f.name.split("/").last
ext = filename.split('.').last
# Save the file with the proper file extension
new_file = f if ext == format
end
# Return the file to be stored by CarrierWave
new_file
end
OK, after many hours of banging my head against the wall the light finally came on. The solution is in how CarrierWave processes the upload. When you define a version, CW duplicates the file with a new name ([version name]_original_filename) and gives it to you in the current_path variable. You can do anything you want with this file reference (ie open the file and truncate it, or fill it with random date, etc.) and when you get done CW will store the file for you.
Somehow I missed the connection and when I realized what was going on it almost blinded me. I'm answering this question here so that it might help some other poor soul lost in the dark. And to show the world my ignorance. :/
I dont know about CarrierWave. But you are returnng zip file object back. Is it what you want to pass or do you want the name of the file to be passed? Or else do you want the file to be extracted and pass the extracted file path back?
I'm making a small app to upload plain text files using Paperclip. I have an Upload model that has a document attachment. I want to rename the uploaded file so that it is the same as Upload.title.
I've used a Paperclip interpolation to do this.
#config/initializers/paperclip.rb
Paperclip.interpolates('upload_title') do |attachment, style|
attachment.instance.title.parameterize
end
#app/models/upload.rb
has_attached_file :document,
:url => "/:attachment/:id/:upload_title.:extension",
:path => ":rails_root/public/:attachment/:id/:upload_title.:extension"
However, the file itself is renamed but the document_file_name in the database remains as it was.
I've made a test app and uploaded to github here
Here I create a new Upload and attach the file "Original File Name.txt"
garethrees.co.uk/misc/new.JPG
Here you see the new Upload created, still with the original file name.
garethrees.co.uk/misc/created.JPG
And also in the database, the document_file_name remains the same as it was.
garethrees.co.uk/misc/db.JPG
However, in the actual filesystem the document is renamed.
garethrees.co.uk/misc/finder.JPG
I really need both records to match as I need to use the Paperclip path in order for users to download the files.
Thanks
create a callback function for after_document_post_process where you set the document_file_name yourself to the title + extension.