1 files changed, 25 insertions, 1 deletions
diff --git a/app/uploaders/custom_field_attachment_uploader.rb b/app/uploaders/custom_field_attachment_uploader.rb
index 411b65bc3..94a14f7e4 100644
--- a/app/uploaders/custom_field_attachment_uploader.rb
+++ b/app/uploaders/custom_field_attachment_uploader.rb
@@ -1,5 +1,5 @@
 class CustomFieldAttachmentUploader < CarrierWave::Uploader::Base
-
+  include CarrierWave::RMagick
   storage :file
 
   def store_dir
@@ -9,4 +9,28 @@ class CustomFieldAttachmentUploader < CarrierWave::Uploader::Base
   def extension_whitelist
     model.send "#{mounted_as}_extension_whitelist"
   end
+
+  process :dynamic_versions
+
+  def method_missing mid, *args
+    unless @dynamic_versions_loaded
+      dynamic_versions
+      @versions = nil
+      cache!
+    end
+    send mid, *args
+  end
+
+  def dynamic_versions
+    custom_field = model.custom_fields[mounted_as.to_s.gsub('custom_field_', '').to_sym]
+    _versions = custom_field.options["versions"] || {}
+
+    _versions.each do |name, size|
+      size = size.split('x')
+      self.class.version name do
+        process :resize_to_fit => size
+      end
+    end
+    @dynamic_versions_loaded = true
+  end
 end