Paperclip is a cool new alternative to attachment_fu for uploading files in Rails.
(There’s a good tutorial on Jim Neath’s blog)
The only gotcha I’ve run into so far is regenerating thumbnails. With attachment_fu, you just re-save your models. For Paperclip, there is a rake task.
rake paperclip:refresh CLASS=YourModelName
Hopefully that saves someone ten minutes of Googling :)
@tim: Aah, thanks for that! .reprocess! is actually what I was looking for :)
Is there a way to change dpi setting for jpegs?
Or compression quality for that matter?
@Dios: All it does is use ImageMagick on the command line, so it should be easy enough to make changes so that it passes the correct arguments through to “convert”. (check lib/paperclip/thumbnail.rb)
Hi!
I discovered Paperclip one week ago and I’m already in love with it!
Does someone knows if it’s possible to link a file to a paperclip-enabled model from the server’s filesystem (not using a user file field input). If yes, how?
I don’t know if I’ve to use File, TempFile or …
Thanks!
I found my way simply using File:
my_model.file = File.new(“/path/to/file.pdf”)
my_model.save
;-)
I have been trying to use Paperclip with Windows, but keep getting an error that says “has_attached_file” is an undefined method. Any idea what is going wrong, or whether I’m missing something here?
@Dan: I’m not sure, we’re all on OS X here.
Although, it does sound suspiciously like you might have forgotten to restart your server…. (to load the plugin)
[...] Sería interesante mirarlo más en profundidad para que sí lo haga en caso de que le estemos pasando un nuevo fichero de imagen, pero por el momento me vale para mis propósitos… y de todos modos quizá es hora de irse cambiando a paperclip, que por lo que tengo entendido, no tiene este comportamiento… aunque tampoco es del todo cómodo porque he leído que para regenerar los thumbnails en paperclip es necesario lanzar una tarea rake. [...]
Hi, you mention .reprocess! on the above comments.
How would I use .reprocess! on my application? Is it used on a rake task?
Also, how can we save the Geometry into the database? Can you point me to a tutorial on how to do that?
Thanks a lot!
Nik Wakelin
Oliver Clarke
Hey Nik,
I’ve been using Paperclip quite a bit. You can regen thumbs by calling .reprocess! On some classes I’m setting up custom widths and heights and then reprocessing the thumbs when the model is saved..
There’s some other nice stuff that isn’t well documented yet, such as setting the thumb width and height via proc, and saving the geometry as an additional column.
Not that it will effect you guys – but there’s a few gotch’yas on windows too. The plugin doesn’t work very nicely with tempfiles on Windows. You need to set binmode when you open the files, and pull a couple of other tricks..
Pretty sweet plugin though – I like it for it’s simplicity. We’ve been feeding it with swfupload.
Tim.