Rails - Paperclip, getting width and height of image in model
- by Corey Tenold
Trying to get the width and height of the uploaded image while still in the model on the initial save.
Any way to do this?
Here's the snippet of code I've been testing with from my model. Of course it fails on "instance.photo_width".
has_attached_file :photo,
:styles => {
:original => "634x471>",
:thumb => Proc.new { |instance|
ratio = instance.photo_width/instance.photo_height
min_width = 142
min_height = 119
if ratio > 1
final_height = min_height
final_width = final_height * ratio
else
final_width = min_width
final_height = final_width * ratio
end
"#{final_width}x#{final_height}"
}
},
:storage => :s3,
:s3_credentials => "#{RAILS_ROOT}/config/s3.yml",
:path => ":attachment/:id/:style.:extension",
:bucket => 'foo_bucket'
So I'm basically trying to do this to get a custom thumbnail width and height based on the initial image dimensions.
Any ideas?
