Hello everybody,
I have some troubles with uploading files in my Rails project.
I use Rails 3, Ruby 1.9.2, rack 1.2.1, and both webrick / passenger on
apache
I was investigating and have isolated the strange behaviour on a
simple empty project:
view:
<% form_tag({:action => ‘upload’}, :multipart => true) do %>
<%=text_field_tag :desc %>
<%=file_field_tag :file %>
<%=submit_tag %>
<% end %>
controller:
class IndexController < ApplicationController
def index
end
def upload
render :text => params[:desc] + params[:file].original_filename
end
end
The problem occurs, when I use national-specific characters in both
“desc” field and the name of the file I’m uploading
Error:
incompatible character encodings: UTF-8 and ASCII-8BIT
Full trace:
app/controllers/index_controller.rb:6:in upload' actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:insend_action’
actionpack (3.0.0) lib/abstract_controller/base.rb:150:in
process_action' actionpack (3.0.0) lib/action_controller/metal/rendering.rb:11:inprocess_action’
actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:in block in process_action' activesupport (3.0.0) lib/active_support/callbacks.rb:435:in_run__1754744357340717012__process_action__4234728288224173498__callbacks’
activesupport (3.0.0) lib/active_support/callbacks.rb:409:in
_run_process_action_callbacks' activesupport (3.0.0) lib/active_support/callbacks.rb:93:inrun_callbacks’
actionpack (3.0.0) lib/abstract_controller/callbacks.rb:17:in
process_action' actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb: 30:inblock in process_action’
activesupport (3.0.0) lib/active_support/notifications.rb:52:in block in instrument' activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb: 21:ininstrument’
activesupport (3.0.0) lib/active_support/notifications.rb:52:in
instrument' actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb: 29:inprocess_action’
actionpack (3.0.0) lib/action_controller/metal/rescue.rb:17:in
process_action' actionpack (3.0.0) lib/abstract_controller/base.rb:119:inprocess’
actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:in
process' actionpack (3.0.0) lib/action_controller/metal.rb:133:indispatch’
actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb:
14:in dispatch' actionpack (3.0.0) lib/action_controller/metal.rb:173:inblock in
action’
actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
call' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:indispatch’
actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:27:in
call' rack-mount (0.6.13) lib/rack/mount/route_set.rb:148:inblock in call’
rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93:in block in recognize' rack-mount (0.6.13) lib/rack/mount/code_generation.rb:75:inoptimized_each’
rack-mount (0.6.13) lib/rack/mount/code_generation.rb:92:in
recognize' rack-mount (0.6.13) lib/rack/mount/route_set.rb:139:incall’
actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:492:in
call' actionpack (3.0.0) lib/action_dispatch/middleware/ best_standards_support.rb:17:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/head.rb:14:in call' rack (1.2.1) lib/rack/methodoverride.rb:24:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/params_parser.rb:
21:in call' actionpack (3.0.0) lib/action_dispatch/middleware/flash.rb:182:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/session/
abstract_store.rb:149:in call' actionpack (3.0.0) lib/action_dispatch/middleware/cookies.rb:287:incall’
activerecord (3.0.0) lib/active_record/query_cache.rb:32:in block in call' activerecord (3.0.0) lib/active_record/query_cache.rb:10:incache’
activerecord (3.0.0) lib/active_record/query_cache.rb:31:in call' activerecord (3.0.0) lib/active_record/connection_adapters/abstract/ connection_pool.rb:355:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46:in
block in call' activesupport (3.0.0) lib/active_support/callbacks.rb:415:in_run_call_callbacks’
actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:44:in
call' rack (1.2.1) lib/rack/sendfile.rb:107:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/remote_ip.rb:48:in
call' actionpack (3.0.0) lib/action_dispatch/middleware/show_exceptions.rb: 46:incall’
railties (3.0.0) lib/rails/rack/logger.rb:13:in call' rack (1.2.1) lib/rack/runtime.rb:17:incall’
activesupport (3.0.0) lib/active_support/cache/strategy/local_cache.rb:
72:in call' rack (1.2.1) lib/rack/lock.rb:11:inblock in call’
internal:prelude:10:in synchronize' rack (1.2.1) lib/rack/lock.rb:11:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:in
call' railties (3.0.0) lib/rails/application.rb:168:incall’
railties (3.0.0) lib/rails/application.rb:77:in method_missing' railties (3.0.0) lib/rails/rack/log_tailer.rb:14:incall’
rack (1.2.1) lib/rack/content_length.rb:13:in call' rack (1.2.1) lib/rack/handler/webrick.rb:52:inservice’
/usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in service' /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:inrun’
/usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in
start_thread’
This is obviously just a silly example. But my real application makes
use of the paperclip gem to attach gallery images to documents.
encoding: utf-8
class GalleryImageController < ApplicationController
def create
@image = GalleryImage.create(params[:gallery_image])
redirect_to ‘/’ + @image.document.url
end
end
encoding: utf-8
class GalleryImage < ActiveRecord::Base
belongs_to :document
has_attached_file :image, :styles => {:thumbnail => “250x200#”}
end
When user tries to upload a file with name containing local characters
and at the same time enters a description containg these characters, I
get this error - only difference is, that it is burried somewhere deep
inside AREL:
incompatible character encodings: UTF-8 and ASCII-8BIT
arel (1.0.1) lib/arel/engines/sql/relations/compiler.rb:85:in join' arel (1.0.1) lib/arel/engines/sql/relations/compiler.rb:85:ininsert_sql’
arel (1.0.1) lib/arel/algebra/relations/writes.rb:32:in to_sql' arel (1.0.1) lib/arel/engines/sql/engine.rb:30:increate’
arel (1.0.1) lib/arel/algebra/relations/writes.rb:24:in call' arel (1.0.1) lib/arel/session.rb:17:increate’
arel (1.0.1) lib/arel/algebra/relations/relation.rb:159:in insert' activerecord (3.0.0) lib/active_record/relation.rb:14:ininsert’
activerecord (3.0.0) lib/active_record/persistence.rb:271:in create' activerecord (3.0.0) lib/active_record/timestamp.rb:47:increate’
activerecord (3.0.0) lib/active_record/callbacks.rb:281:in block in create' activesupport (3.0.0) lib/active_support/callbacks.rb:413:in_run_create_callbacks’
activerecord (3.0.0) lib/active_record/callbacks.rb:281:in create' activerecord (3.0.0) lib/active_record/persistence.rb:247:increate_or_update’
activerecord (3.0.0) lib/active_record/callbacks.rb:277:in block in create_or_update' activesupport (3.0.0) lib/active_support/callbacks.rb:418:in_run_save_callbacks’
activerecord (3.0.0) lib/active_record/callbacks.rb:277:in
create_or_update' activerecord (3.0.0) lib/active_record/persistence.rb:39:insave’
activerecord (3.0.0) lib/active_record/validations.rb:43:in save' activerecord (3.0.0) lib/active_record/attribute_methods/dirty.rb: 21:insave’
activerecord (3.0.0) lib/active_record/transactions.rb:237:in block (2 levels) in save' activerecord (3.0.0) lib/active_record/transactions.rb:289:inblock
in with_transaction_returning_status’
activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
database_statements.rb:139:in transaction' activerecord (3.0.0) lib/active_record/transactions.rb:204:intransaction’
activerecord (3.0.0) lib/active_record/transactions.rb:287:in
with_transaction_returning_status' activerecord (3.0.0) lib/active_record/transactions.rb:237:inblock
in save’
activerecord (3.0.0) lib/active_record/transactions.rb:248:in
rollback_active_record_state!' activerecord (3.0.0) lib/active_record/transactions.rb:236:insave’
activerecord (3.0.0) lib/active_record/base.rb:498:in create' app/controllers/gallery_image_controller.rb:5:increate’
actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
send_action' actionpack (3.0.0) lib/abstract_controller/base.rb:150:inprocess_action’
actionpack (3.0.0) lib/action_controller/metal/rendering.rb:11:in
process_action' actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:inblock
in process_action’
activesupport (3.0.0) lib/active_support/callbacks.rb:445:in
_run__606477216504222700__process_action__611054854482167000__callbacks' activesupport (3.0.0) lib/active_support/callbacks.rb:409:in_run_process_action_callbacks’
activesupport (3.0.0) lib/active_support/callbacks.rb:93:in
run_callbacks' actionpack (3.0.0) lib/abstract_controller/callbacks.rb:17:inprocess_action’
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
30:in block in process_action' activesupport (3.0.0) lib/active_support/notifications.rb:52:inblock
in instrument’
activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:
21:in instrument' activesupport (3.0.0) lib/active_support/notifications.rb:52:ininstrument’
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
29:in process_action' actionpack (3.0.0) lib/action_controller/metal/rescue.rb:17:inprocess_action’
actionpack (3.0.0) lib/abstract_controller/base.rb:119:in process' actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:inprocess’
actionpack (3.0.0) lib/action_controller/metal.rb:133:in dispatch' actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb: 14:indispatch’
actionpack (3.0.0) lib/action_controller/metal.rb:173:in block in action' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:incall’
actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
dispatch' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:27:incall’
rack-mount (0.6.13) lib/rack/mount/route_set.rb:148:in block in call' rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93:inblock in
recognize’
rack-mount (0.6.13) lib/rack/mount/code_generation.rb:82:in
optimized_each' rack-mount (0.6.13) lib/rack/mount/code_generation.rb:92:inrecognize’
rack-mount (0.6.13) lib/rack/mount/route_set.rb:139:in call' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:492:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/
best_standards_support.rb:17:in call' actionpack (3.0.0) lib/action_dispatch/middleware/head.rb:14:incall’
rack (1.2.1) lib/rack/methodoverride.rb:24:in call' actionpack (3.0.0) lib/action_dispatch/middleware/params_parser.rb: 21:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/flash.rb:182:in
call' actionpack (3.0.0) lib/action_dispatch/middleware/session/ abstract_store.rb:149:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/cookies.rb:287:in
call' /home/jenda/.bundler/ruby/1.9.1/rails-ckeditor-ffb4026/lib/ckeditor/ middleware.rb:15:incall’
activerecord (3.0.0) lib/active_record/query_cache.rb:32:in block in call' activerecord (3.0.0) lib/active_record/connection_adapters/abstract/ query_cache.rb:28:incache’
activerecord (3.0.0) lib/active_record/query_cache.rb:12:in cache' activerecord (3.0.0) lib/active_record/query_cache.rb:31:incall’
activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
connection_pool.rb:355:in call' actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46:inblock in call’
activesupport (3.0.0) lib/active_support/callbacks.rb:415:in
_run_call_callbacks' actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:44:incall’
rack (1.2.1) lib/rack/sendfile.rb:107:in call' actionpack (3.0.0) lib/action_dispatch/middleware/remote_ip.rb:48:incall’
actionpack (3.0.0) lib/action_dispatch/middleware/show_exceptions.rb:
46:in call' railties (3.0.0) lib/rails/rack/logger.rb:13:incall’
rack (1.2.1) lib/rack/runtime.rb:17:in call' activesupport (3.0.0) lib/active_support/cache/strategy/local_cache.rb: 72:incall’
rack (1.2.1) lib/rack/lock.rb:11:in block in call' <internal:prelude>:10:insynchronize’
rack (1.2.1) lib/rack/lock.rb:11:in call' actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:incall’
railties (3.0.0) lib/rails/application.rb:168:in call' railties (3.0.0) lib/rails/application.rb:77:inmethod_missing’
railties (3.0.0) lib/rails/rack/log_tailer.rb:14:in call' rack (1.2.1) lib/rack/content_length.rb:13:incall’
rack (1.2.1) lib/rack/handler/webrick.rb:52:in service' /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:inservice’
/usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in run' /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:inblock in
start_thread’
I’m able to make a workaround like this:
def create
# force encoding of the original filename to utf-8
params[:gallery_image]
[:image].original_filename.force_encoding(‘utf-8’)
@image = GalleryImage.create(params[:gallery_image])
redirect_to '/' + @image.document.url.url
end
But I don’t think it’s supposed to be like this. Shouldn’t rack take
care of this for me ?
Thanks for contributions,
Best regards
Jan Koritak