Я рисую пробел на этом. Вот моя проблема:
Короткая версия
Мое image#create
действие завершается неудачно при вызове image.save
и выдает Undefined method "name" for nil:NilClass
. Модель Image включает в себя загрузку файла через paperclip
gem.
Часть, которая бросает меня:
ошибка возникает только тогда, когда я включаю :multipart => true
в форму отправки
Когда я вынимаю это, форма отлично работает, за исключением, конечно, файл изображения не загружается. Посмотрите трассировку стека ниже для деталей о том, где он терпит неудачу. Похоже, что он достигает нулевого значения, когда пытается что-то процитировать для оператора INSERT, но я не могу понять, что. Параметры моего контроллера выглядят нормально, и я проверил через регистратор, чтобы убедиться, что новый экземпляр Image
правильно создан непосредственно перед тем, как он нажмет на вызов сохранения.
Дополнительные детали
Я постараюсь указать все подробности, упорядоченные по важности:
Я использую скрепку и пытаюсь сохранить ее через S3, хотя эта проблема все еще возникает, когда я полностью закомментирую строку has_attached_file
в моей модели изображения.
Изображение - это вложенный ресурс внутри Collection, на который ссылается слаг в методе to_param
.
У меня есть основы мультитенантной системы (так называемые пользовательские дочерние домены в стиле Basecamp, реализованные через центральную пользовательскую модель, охватывающую все компоненты).
Параметры переданы в контроллер
{"utf8"=>"✓",
"authenticity_token"=>"JYCMky7851j5cW4ChSWUCCL/02iePf6i/QWAgR8q5tE=",
"image"=>{"name"=>"My testerific image 2",
"slug"=>"my-testerific-image-2",
"description"=>"w",
"collection_id"=>"2",
"sort"=>"3",
"picture_file_name"=>#<ActionDispatch::Http::UploadedFile:0x00000101b3f540 @original_filename="David's pic 005.jpeg",
@content_type="image/jpeg",
@headers="Content-Disposition: form-data; name=\"image[picture_file_name]\"; filename=\"David's pic 005.jpeg\"\r\nContent-Type: image/jpeg\r\n",
@tempfile=#<File:/var/folders/df/mvsv5cs137gbyl8r7h428zp40000gn/T/RackMultipart20110814-64770-duz6wu>>},
"commit"=>"Create Image",
"collection_id"=>"my-new-collection"}
Полная трассировка стека
activesupport (3.0.9) lib/active_support/whiny_nil.rb:48:in 'method_missing'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:20:in 'block in initialize'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'yield'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'default'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'block in initialize'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'yield'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'default'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'block in initialize'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'yield'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'default'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'block in initialize'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'yield'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'default'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:22:in 'block in initialize'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in 'yield'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in 'default'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in 'accept'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:325:in 'block in dump_ivars'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:323:in 'each'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:323:in 'dump_ivars'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:85:in 'visit_Object'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in 'accept'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:36:in '<<'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych.rb:165:in 'dump'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/core_ext.rb:13:in 'psych_to_yaml'
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/quoting.rb:34:in 'quote'
activerecord (3.0.9) lib/active_record/connection_adapters/sqlite3_adapter.rb:45:in 'quote'
arel (2.0.10) lib/arel/visitors/to_sql.rb:327:in 'quote'
arel (2.0.10) lib/arel/visitors/to_sql.rb:70:in 'block in visit_Arel_Nodes_Values'
arel (2.0.10) lib/arel/visitors/to_sql.rb:69:in 'map'
arel (2.0.10) lib/arel/visitors/to_sql.rb:69:in 'visit_Arel_Nodes_Values'
arel (2.0.10) lib/arel/visitors/visitor.rb:15:in 'visit'
arel (2.0.10) lib/arel/visitors/to_sql.rb:59:in 'visit_Arel_Nodes_InsertStatement'
arel (2.0.10) lib/arel/visitors/visitor.rb:15:in 'visit'
arel (2.0.10) lib/arel/visitors/visitor.rb:5:in 'accept'
arel (2.0.10) lib/arel/visitors/to_sql.rb:18:in 'block in accept'
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/connection_pool.rb:111:in 'with_connection'
arel (2.0.10) lib/arel/visitors/to_sql.rb:16:in 'accept'
arel (2.0.10) lib/arel/tree_manager.rb:20:in 'to_sql'
arel (2.0.10) lib/arel/select_manager.rb:217:in 'insert'
activerecord (3.0.9) lib/active_record/relation.rb:14:in 'insert'
activerecord (3.0.9) lib/active_record/persistence.rb:274:in 'create'
activerecord (3.0.9) lib/active_record/timestamp.rb:47:in 'create'
activerecord (3.0.9) lib/active_record/callbacks.rb:277:in 'block in create'
activesupport (3.0.9) lib/active_support/callbacks.rb:414:in '_run_create_callbacks'
activerecord (3.0.9) lib/active_record/callbacks.rb:277:in 'create'
activerecord (3.0.9) lib/active_record/persistence.rb:250:in 'create_or_update'
activerecord (3.0.9) lib/active_record/callbacks.rb:273:in 'block in create_or_update'
activesupport (3.0.9) lib/active_support/callbacks.rb:429:in '_run_save_callbacks'
activerecord (3.0.9) lib/active_record/callbacks.rb:273:in 'create_or_update'
activerecord (3.0.9) lib/active_record/persistence.rb:40:in 'save'
activerecord (3.0.9) lib/active_record/validations.rb:43:in 'save'
activerecord (3.0.9) lib/active_record/attribute_methods/dirty.rb:21:in 'save'
activerecord (3.0.9) lib/active_record/transactions.rb:240:in 'block (2 levels) in save'
activerecord (3.0.9) lib/active_record/transactions.rb:292:in 'block in with_transaction_returning_status'
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/database_statements.rb:139:in 'transaction'
activerecord (3.0.9) lib/active_record/transactions.rb:207:in 'transaction'
activerecord (3.0.9) lib/active_record/transactions.rb:290:in 'with_transaction_returning_status'
activerecord (3.0.9) lib/active_record/transactions.rb:240:in 'block in save'
activerecord (3.0.9) lib/active_record/transactions.rb:251:in 'rollback_active_record_state!'
activerecord (3.0.9) lib/active_record/transactions.rb:239:in 'save'
app/controllers/images_controller.rb:42:in 'block in create'
actionpack (3.0.9) lib/action_controller/metal/mime_responds.rb:264:in 'call'
actionpack (3.0.9) lib/action_controller/metal/mime_responds.rb:264:in 'retrieve_response_from_mimes'
actionpack (3.0.9) lib/action_controller/metal/mime_responds.rb:191:in 'respond_to'
app/controllers/images_controller.rb:40:in 'create'
actionpack (3.0.9) lib/action_controller/metal/implicit_render.rb:4:in 'send_action'
actionpack (3.0.9) lib/abstract_controller/base.rb:150:in 'process_action'
actionpack (3.0.9) lib/action_controller/metal/rendering.rb:11:in 'process_action'
actionpack (3.0.9) lib/abstract_controller/callbacks.rb:18:in 'block in process_action'
activesupport (3.0.9) lib/active_support/callbacks.rb:451:in '_run__867212960703161301__process_action__2360218484576085785__callbacks'
activesupport (3.0.9) lib/active_support/callbacks.rb:410:in '_run_process_action_callbacks'
activesupport (3.0.9) lib/active_support/callbacks.rb:94:in 'run_callbacks'
actionpack (3.0.9) lib/abstract_controller/callbacks.rb:17:in 'process_action'
actionpack (3.0.9) lib/action_controller/metal/instrumentation.rb:30:in 'block in process_action'
activesupport (3.0.9) lib/active_support/notifications.rb:52:in 'block in instrument'
activesupport (3.0.9) lib/active_support/notifications/instrumenter.rb:21:in 'instrument'
activesupport (3.0.9) lib/active_support/notifications.rb:52:in 'instrument'
actionpack (3.0.9) lib/action_controller/metal/instrumentation.rb:29:in 'process_action'
actionpack (3.0.9) lib/action_controller/metal/rescue.rb:17:in 'process_action'
actionpack (3.0.9) lib/abstract_controller/base.rb:119:in 'process'
actionpack (3.0.9) lib/abstract_controller/rendering.rb:41:in 'process'
actionpack (3.0.9) lib/action_controller/metal.rb:138:in 'dispatch'
actionpack (3.0.9) lib/action_controller/metal/rack_delegation.rb:14:in 'dispatch'
actionpack (3.0.9) lib/action_controller/metal.rb:178:in 'block in action'
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:62:in 'call'
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:62:in 'dispatch'
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:27:in 'call'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in 'block in call'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in 'block in recognize'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:68:in 'optimized_each'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in 'recognize'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in 'call'
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:493:in 'call'
warden (1.0.5) lib/warden/manager.rb:35:in 'block in call'
warden (1.0.5) lib/warden/manager.rb:34:in 'catch'
warden (1.0.5) lib/warden/manager.rb:34:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/best_standards_support.rb:17:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/head.rb:14:in 'call'
rack (1.2.3) lib/rack/methodoverride.rb:24:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/params_parser.rb:21:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/flash.rb:182:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/session/abstract_store.rb:149:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/cookies.rb:302:in 'call'
activerecord (3.0.9) lib/active_record/query_cache.rb:32:in 'block in call'
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in 'cache'
activerecord (3.0.9) lib/active_record/query_cache.rb:12:in 'cache'
activerecord (3.0.9) lib/active_record/query_cache.rb:31:in 'call'
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/callbacks.rb:46:in 'block in call'
activesupport (3.0.9) lib/active_support/callbacks.rb:416:in '_run_call_callbacks'
actionpack (3.0.9) lib/action_dispatch/middleware/callbacks.rb:44:in 'call'
rack (1.2.3) lib/rack/sendfile.rb:107:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/remote_ip.rb:48:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/show_exceptions.rb:47:in 'call'
railties (3.0.9) lib/rails/rack/logger.rb:13:in 'call'
rack (1.2.3) lib/rack/runtime.rb:17:in 'call'
activesupport (3.0.9) lib/active_support/cache/strategy/local_cache.rb:72:in 'call'
rack (1.2.3) lib/rack/lock.rb:11:in 'block in call'
<internal:prelude>:10:in 'synchronize'
rack (1.2.3) lib/rack/lock.rb:11:in 'call'
actionpack (3.0.9) lib/action_dispatch/middleware/static.rb:30:in 'call'
railties (3.0.9) lib/rails/application.rb:168:in 'call'
railties (3.0.9) lib/rails/application.rb:77:in 'method_missing'
railties (3.0.9) lib/rails/rack/log_tailer.rb:14:in 'call'
rack (1.2.3) lib/rack/content_length.rb:13:in 'call'
rack (1.2.3) lib/rack/handler/webrick.rb:52:in 'service'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/httpserver.rb:111:in 'service'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/httpserver.rb:70:in 'run'
/Users/daw/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:183:in 'block in start_thread'
Обновление
По запросу код модели:
class Image < ActiveRecord::Base
belongs_to :collection
belongs_to :user
before_save :create_slug
has_attached_file :picture,
#:styles => {
# :thumb => '100x100>',
# :full => '800x800>'
#},
:storage => :s3,
:s3_credentials => Rails.root.join( 'config', 's3.yml' ),
:path => ":id/:style/:filename"
def to_param
self.name.parameterize
end
private
def create_slug
self.slug = self.to_param
end
end
Обновление 2
Я сравнил экземпляр Image
, который был построен с :multipart => true
против без него, и подтвердил, что единственное отличие - это поле загрузки файла, picture_file_name
. Без :multipart => true
это строка с именем файла (не удивительно). С ним это экземпляр ActionDispatch::Http::UploadedFile
. Учитывая, что трассировка стека показывает сбой во время вызова to_yaml
, возможно, проблема заключается в преобразовании экземпляра UploadedFile
в YAML?