I'm attempting to get CanCan working for a few specific actions in my Rails 3 app. I've defined my roles in the Ability.rb class, but something is causing an error in both production and development. Specifically, when I call can? to show/hide a link depending on User role I get the following:
ArgumentError in Higher_eds#show
Showing /Users/me/Desktop/myapp/app/views/higher_eds/_logged_in.html.erb where line #62 raised:
wrong number of arguments (2 for 1)
Can anyone help me figure out what's going on?
I'm getting the error by calling the following in my /higher_eds/_logged_in.html.erb view:
<% if can? :highered_students, #highered %>
<li><%= link_to "Students", highered_students_higher_ed_path, :class=> 'inactive', :remote => true %></li>
<% end %>
In my highered_students action in higher_eds_controller.rb:
def highered_students
#highered = HigherEd.find(params[:id])
#profiles = Profile.where %[higher_ed = ? AND EXTRACT(year FROM college_grad_year) > EXTRACT(year FROM current_date)], #highered.name
respond_to do |format|
format.js { render :layout => nil }
end
end
My Ability.rb:
class Ability
include CanCan::Ability
def initialize(user)
user ||= User.new #guest user
if user.role? :highered_admin
can :highered_students, HigherEd
end
if user.role? :admin
can :manage, :all
end
end
end
My full trace:
activerecord (3.0.5) lib/active_record/attribute_methods/query.rb:34:in `attribute?'
activemodel (3.0.5) lib/active_model/attribute_methods.rb:362:in `method_missing'
activerecord (3.0.5) lib/active_record/attribute_methods.rb:46:in `method_missing'
app/models/ability.rb:6:in `initialize'
cancan (1.6.7) lib/cancan/controller_additions.rb:349:in `new'
cancan (1.6.7) lib/cancan/controller_additions.rb:349:in `current_ability'
cancan (1.6.7) lib/cancan/controller_additions.rb:372:in `can?'
actionpack (3.0.5) lib/abstract_controller/helpers.rb:55:in `can?'
app/views/higher_eds/_logged_in.html.erb:62:in `block in _app_views_higher_eds__logged_in_html_erb__1309160371424325548_70132578271280__1361790216911758374'
actionpack (3.0.5) lib/action_view/helpers/capture_helper.rb:40:in `block in capture'
actionpack (3.0.5) lib/action_view/helpers/capture_helper.rb:172:in `with_output_buffer'
actionpack (3.0.5) lib/action_view/helpers/capture_helper.rb:40:in `capture'
actionpack (3.0.5) lib/action_view/helpers/tag_helper.rb:77:in `content_tag'
actionpack (3.0.5) lib/action_view/helpers/record_tag_helper.rb:59:in `content_tag_for'
actionpack (3.0.5) lib/action_view/helpers/record_tag_helper.rb:21:in `div_for'
app/views/higher_eds/_logged_in.html.erb:1:in `_app_views_higher_eds__logged_in_html_erb__1309160371424325548_70132578271280__1361790216911758374'
actionpack (3.0.5) lib/action_view/template.rb:135:in `block in render'
activesupport (3.0.5) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.5) lib/action_view/template.rb:127:in `render'
actionpack (3.0.5) lib/action_view/render/partials.rb:333:in `render_partial'
actionpack (3.0.5) lib/action_view/render/partials.rb:262:in `block in render'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.5) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.5) lib/action_view/render/partials.rb:260:in `render'
actionpack (3.0.5) lib/action_view/render/partials.rb:378:in `_render_partial'
actionpack (3.0.5) lib/action_view/render/rendering.rb:22:in `render'
app/views/higher_eds/show.html.erb:2:in `_app_views_higher_eds_show_html_erb__2358915598045819601_70132577771800__3922384299851769153'
actionpack (3.0.5) lib/action_view/template.rb:135:in `block in render'
activesupport (3.0.5) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.5) lib/action_view/template.rb:127:in `render'
actionpack (3.0.5) lib/action_view/render/rendering.rb:59:in `block in _render_template'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.5) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.5) lib/action_view/render/rendering.rb:56:in `_render_template'
actionpack (3.0.5) lib/action_view/render/rendering.rb:26:in `render'
actionpack (3.0.5) lib/abstract_controller/rendering.rb:115:in `_render_template'
actionpack (3.0.5) lib/abstract_controller/rendering.rb:109:in `render_to_body'
actionpack (3.0.5) lib/action_controller/metal/renderers.rb:47:in `render_to_body'
actionpack (3.0.5) lib/action_controller/metal/compatibility.rb:55:in `render_to_body'
actionpack (3.0.5) lib/abstract_controller/rendering.rb:102:in `render_to_string'
actionpack (3.0.5) lib/abstract_controller/rendering.rb:93:in `render'
actionpack (3.0.5) lib/action_controller/metal/rendering.rb:17:in `render'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.0.5) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/Users/me/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:310:in `realtime'
activesupport (3.0.5) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:78:in `cleanup_view_runtime'
activerecord (3.0.5) lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:39:in actionpack `render'
app/controllers/higher_eds_controller.rb:42:in `show'
actionpack (3.0.5) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.0.5) lib/abstract_controller/base.rb:150:in `process_action'
actionpack (3.0.5) lib/action_controller/metal/rendering.rb:11:in `process_action'
actionpack (3.0.5) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.0.5) lib/active_support/callbacks.rb:440:in `_run__4596096755335087880__process_action__1011169593507530898__callbacks'
activesupport (3.0.5) lib/active_support/callbacks.rb:409:in `_run_process_action_callbacks'
activesupport (3.0.5) lib/active_support/callbacks.rb:93:in `run_callbacks'
actionpack (3.0.5) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.5) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.5) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.5) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.0.5) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.0.5) lib/abstract_controller/base.rb:119:in `process'
actionpack (3.0.5) lib/abstract_controller/rendering.rb:41:in `process'
actionpack (3.0.5) lib/action_controller/metal.rb:138:in `dispatch'
actionpack (3.0.5) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.0.5) lib/action_controller/metal.rb:178:in `block in action'
actionpack (3.0.5) lib/action_dispatch/routing/route_set.rb:62:in `call'
actionpack (3.0.5) lib/action_dispatch/routing/route_set.rb:62:in `dispatch'
actionpack (3.0.5) 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:145: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 (3.0.5) lib/action_dispatch/routing/route_set.rb:492:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.2.5) lib/rack/methodoverride.rb:24:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/flash.rb:182:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/cookies.rb:302:in `call'
activerecord (3.0.5) lib/active_record/query_cache.rb:32:in `block in call'
activerecord (3.0.5) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
activerecord (3.0.5) lib/active_record/query_cache.rb:12:in `cache'
activerecord (3.0.5) lib/active_record/query_cache.rb:31:in `call'
activerecord (3.0.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call'
activesupport (3.0.5) lib/active_support/callbacks.rb:415:in `_run_call_callbacks'
actionpack (3.0.5) lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.2.5) lib/rack/sendfile.rb:106:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call'
railties (3.0.5) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.5) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.5) lib/rack/lock.rb:13:in `block in call'
<internal:prelude>:10:in `synchronize'
rack (1.2.5) lib/rack/lock.rb:13:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.5) lib/rails/application.rb:168:in `call'
railties (3.0.5) lib/rails/application.rb:77:in `method_missing'
railties (3.0.5) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.2.5) lib/rack/content_length.rb:13:in `call'
rack (1.2.5) lib/rack/handler/webrick.rb:52:in `service'
/Users/me/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/Users/me/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/Users/me/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
If I change my Ability.rb logic for checking if a User has a certain role, it works.
class Ability
include CanCan::Ability
def initialize(user)
user ||= User.new #guest user
if user.role? == :highered_admin
can :highered_students, HigherEd
end
if user.role? :admin
can :manage, :all
end
end
end
I had it set up for a different role model check.
Related
I want to email users every time a new treatment that is under the category they are interested in is added.
I have a join table interests_users which is holds a user_id and a interest_id. Treatments has a variable called category which is used to compare against interests.
This is what the create block in my treatments controller looks like.
def create
#treatment = Treatment.new(treatment_params)
respond_to do |format|
if #treatment.save
interest = Interest.find_by(name: #treatment.category)
if interest
User.find_by_sql("SELECT * FROM users
INNER JOIN interests_users ON clients.id = interests_users.client_id
WHERE interests_users.interest_id = ?", interest.id).each do |user|
Bestevermailer.treatmentNotification(user, #treatment).deliver
end
end
format.html { redirect_to #treatment, notice: 'Treatment was successfully created.' }
format.json { render :show, status: :created, location: #treatment }
else
format.html { render :new }
format.json { render json: #treatment.errors, status: :unprocessable_entity }
end
end
end
Full Trace
activerecord (4.2.5) lib/active_record/connection_adapters/sqlite3_adapter.rb:289:in `exec_query'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/database_statements.rb:355:in `select'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/database_statements.rb:32:in `select_all'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `block in select_all'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:83:in `cache_sql'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `select_all'
activerecord (4.2.5) lib/active_record/querying.rb:39:in `find_by_sql'
app/controllers/treatments_controller.rb:72:in `block in create'
actionpack (4.2.5) lib/action_controller/metal/mime_responds.rb:212:in `respond_to'
app/controllers/treatments_controller.rb:68:in `create'
actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (4.2.5) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.5) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.5) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.5) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.5) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.5) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.5) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `call'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `dispatch'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:45:in `serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:38:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.5) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.5) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.5) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.2.1) lib/web_console/middleware.rb:39:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.5) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.5) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.5) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/static.rb:116:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
railties (4.2.5) lib/rails/engine.rb:518:in `call'
railties (4.2.5) lib/rails/application.rb:165:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
Try re-framing your query. Here:
User.joins('INNER JOIN interests_users ON clients.id = interests_users.client_id').where("interests_users.interest_id = ?", interest.id)
As per a similar SO:
find_by_sql doesn't work well with query placeholders
find_by_sql expects an array as a parameter:
User.find_by_sql([
"SELECT * FROM users
INNER JOIN interests_users
ON clients.id = interests_users.client_id
WHERE interests_users.interest_id = ?",
interest.id]).each do |user|
I was using this railscast episode: http://railscasts.com/episodes/382-tagging, which suggested this gem: https://github.com/mbleigh/acts-as-taggable-on,
and all was good to go until I clicked on a User created tag link, which is suppose to then list out every instance of the tag clicked, but instead I got this error message:
SQLite3::SQLException: near "values": syntax error: SELECT "values".* FROM "values" JOIN taggings values_taggings_5183317 ON values_taggings_5183317.taggable_id = values.id AND values_taggings_5183317.taggable_type = 'Value' AND values_taggings_5183317.tag_id = 2
Can you please help me?
# _form
<div class="form-group">
<%= f.text_field :tag_list, class: 'form-control', placeholder: 'Enter Tag(s)' %>
</div>
# Controller
def index
if params[:tag]
#values = Value.tagged_with(params[:tag])
else
#values = Value.order('RANDOM()')
end
end
def value_params
params.require(:value).permit(:name, :tag_list)
end
end
# index
<td class="category">
<b><%= raw value.tag_list.map { |t| link_to t, tag_path(t) }.join(', ') %> </b></td>
# routes
get 'tags/:tag', to: 'values#index', as: :tag
sqlite3 (1.3.10) lib/sqlite3/database.rb:91:in `initialize'
sqlite3 (1.3.10) lib/sqlite3/database.rb:91:in `new'
sqlite3 (1.3.10) lib/sqlite3/database.rb:91:in `prepare'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/sqlite3_adapter.rb:300:in `block in exec_query'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract_adapter.rb:466:in `block in log'
activesupport (4.2.0.rc3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract_adapter.rb:460:in `log'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/sqlite3_adapter.rb:297:in `exec_query'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/database_statements.rb:336:in `select'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/database_statements.rb:32:in `select_all'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `block in select_all'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/query_cache.rb:83:in `cache_sql'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `select_all'
activerecord (4.2.0.rc3) lib/active_record/querying.rb:39:in `find_by_sql'
activerecord (4.2.0.rc3) lib/active_record/relation.rb:638:in `exec_queries'
activerecord (4.2.0.rc3) lib/active_record/relation.rb:514:in `load'
activerecord (4.2.0.rc3) lib/active_record/relation.rb:243:in `to_a'
activerecord (4.2.0.rc3) lib/active_record/relation/delegation.rb:46:in `each'
app/views/values/index.html.erb:10:in `_app_views_values_index_html_erb__4435347718394186207_70115274036880'
actionview (4.2.0.rc3) lib/action_view/template.rb:145:in `block in render'
activesupport (4.2.0.rc3) lib/active_support/notifications.rb:166:in `instrument'
actionview (4.2.0.rc3) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.0.rc3) lib/action_view/template.rb:143:in `render'
actionview (4.2.0.rc3) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (4.2.0.rc3) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
activesupport (4.2.0.rc3) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0.rc3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0.rc3) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.0.rc3) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
actionview (4.2.0.rc3) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (4.2.0.rc3) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (4.2.0.rc3) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.0.rc3) lib/action_view/renderer/template_renderer.rb:14:in `render'
actionview (4.2.0.rc3) lib/action_view/renderer/renderer.rb:42:in `render_template'
actionview (4.2.0.rc3) lib/action_view/renderer/renderer.rb:23:in `render'
actionview (4.2.0.rc3) lib/action_view/rendering.rb:100:in `_render_template'
actionpack (4.2.0.rc3) lib/action_controller/metal/streaming.rb:217:in `_render_template'
actionview (4.2.0.rc3) lib/action_view/rendering.rb:83:in `render_to_body'
actionpack (4.2.0.rc3) lib/action_controller/metal/rendering.rb:32:in `render_to_body'
actionpack (4.2.0.rc3) lib/action_controller/metal/renderers.rb:37:in `render_to_body'
actionpack (4.2.0.rc3) lib/abstract_controller/rendering.rb:25:in `render'
actionpack (4.2.0.rc3) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'
activesupport (4.2.0.rc3) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
/Users/galli01anthony/.rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/benchmark.rb:294:in `realtime'
activesupport (4.2.0.rc3) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:41:in `block in render'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
activerecord (4.2.0.rc3) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:40:in `render'
actionpack (4.2.0.rc3) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.2.0.rc3) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (4.2.0.rc3) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.0.rc3) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.0.rc3) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:151:in `block in halting_and_conditional'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:151:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:151:in `block in halting_and_conditional'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:151:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:151:in `block in halting_and_conditional'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:234:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:234:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:92:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:92:in `_run_callbacks'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0.rc3) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.0.rc3) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.2.0.rc3) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0.rc3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0.rc3) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.0.rc3) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.0.rc3) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.0.rc3) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.0.rc3) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.0.rc3) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.0.rc3) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.2.0.rc3) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.0.rc3) lib/action_controller/metal.rb:236:in `block in action'
actionpack (4.2.0.rc3) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (4.2.0.rc3) lib/action_dispatch/routing/route_set.rb:42:in `serve'
actionpack (4.2.0.rc3) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.0.rc3) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.0.rc3) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.0.rc3) lib/action_dispatch/routing/route_set.rb:802:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
rack (1.6.0) lib/rack/etag.rb:24:in `call'
rack (1.6.0) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.0) lib/rack/head.rb:13:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.0) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.0) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.0.rc3) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.0.rc3) lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
activerecord (4.2.0.rc3) lib/active_record/migration.rb:378:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:88:in `call'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:88:in `_run_callbacks'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
activesupport (4.2.0.rc3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.0.rc3) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.0.rc3) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.0.rc3) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.0.rc3) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.0.rc3) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.0.rc3) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.0) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.0) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.0.rc3) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.0) lib/rack/lock.rb:17:in `call'
actionpack (4.2.0.rc3) lib/action_dispatch/middleware/static.rb:113:in `call'
rack (1.6.0) lib/rack/sendfile.rb:113:in `call'
railties (4.2.0.rc3) lib/rails/engine.rb:518:in `call'
railties (4.2.0.rc3) lib/rails/application.rb:164:in `call'
rack (1.6.0) lib/rack/lock.rb:17:in `call'
rack (1.6.0) lib/rack/content_length.rb:15:in `call'
rack (1.6.0) lib/rack/handler/webrick.rb:89:in `service'
/Users/galli01anthony/.rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
/Users/galli01anthony/.rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
/Users/galli01anthony/.rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
Thanks in advance!!!
I think the problem is twofold.
The token "values" is a reserved word in standard SQL. As insert into table_name values (...);.
You use it without double quotes, which are required in standard SQL for reserved words used as identifiers. (Better not to use reserved words that way, but still . . .) MySQL isn't standard; it uses backticks. SQL Server uses square brackets.
You need to quote values.id.
SELECT "values".*
FROM "values"
JOIN taggings values_taggings_5183317
ON values_taggings_5183317.taggable_id = "values".id
-- ^ ^
AND values_taggings_5183317.taggable_type = 'Value'
AND values_taggings_5183317.tag_id = 2
I can't seem to get CanCan working. This has turned out to be quite frustrating, especially when I have followed the rule book and tried, seemingly, all the tricks under the sun to get it to work.
I am using Rails 3.1.2, Devise 2.1.2, and CanCan 1.6.8. I set-up a separate role model as described by RyanB here.
This is my code.
1) ability.rb
class Ability
include CanCan::Ability
def initializer(user)
user ||= User.new # For users with no account
if (user.has_role?(:admin)) || (user.has_role?(:mod))
can :manage, :all
elsif user.has_role?(:registered)
can :read, :all
can :create, :all
can :update, Question do |question|
question.try(:user) == (user || user.has_role?(:admin) || user.has_role?(:mod))
end
can :destroy, Question do |question|
question.try(:user) == (user || user.has_role?(:admin) || user.has_role?(:mod))
end
else
can :read, :all
end
end
end
2) has_role? definition in user.rb
def has_role?(role_sym)
roles.any? { |r| r.name.underscore.to_sym == role_sym }
end
3) Controller before filters
before_filter :authenticate_user!, :except => :show
load_and_authorize_resource
skip_authorize_resource :only => :show
Authorizing any controller with CanCan results in the same error on all actions.
EDIT: Stack Trace
cancan (1.6.8) lib/cancan/controller_additions.rb:352:in `initialize'
cancan (1.6.8) lib/cancan/controller_additions.rb:352:in `new'
cancan (1.6.8) lib/cancan/controller_additions.rb:352:in `current_ability'
cancan (1.6.8) lib/cancan/controller_resource.rb:207:in `current_ability'
cancan (1.6.8) lib/cancan/controller_resource.rb:77:in `load_collection?'
cancan (1.6.8) lib/cancan/controller_resource.rb:33:in `load_resource'
cancan (1.6.8) lib/cancan/controller_resource.rb:25:in `load_and_authorize_resource'
cancan (1.6.8) lib/cancan/controller_resource.rb:10:in `block in add_before_filter'
activesupport (3.2.1) lib/active_support/callbacks.rb:429:in `_run__458654864__process_action__156152648__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.1) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.1) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.1) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `dispatch'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:30:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:589:in `call'
warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
warden (1.2.1) lib/warden/manager.rb:34:in `catch'
warden (1.2.1) lib/warden/manager.rb:34:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.1) lib/rack/etag.rb:23:in `call'
rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:in `call'
activerecord (3.2.1) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `_run__446710069__call__461654473__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.1) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.1) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/static.rb:53:in `call'
railties (3.2.1) lib/rails/engine.rb:479:in `call'
railties (3.2.1) lib/rails/application.rb:220:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.1) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
/home/administrator/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/administrator/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/administrator/.rvm/rubies/ruby-1
.9.3-p125/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
Okay, it seems, I did not followed ALL the rules of the rule book. Although I cannot see how this could be a problem. To get this working, I deleted my ability.rb file that I created manually, and used the rails g cancan:ability command to generate the same file in the same directory, and used the same code. And now it works like a charm.
I just installed delayed job on my little Rails 3.2 app. Here is the controller where I use it:
require 'waveform'
class MixesController < ApplicationController
def index
end
def new
#mix = Mix.new
end
def create
#mix = Mix.new(params[:mix])
if #mix.save
options = {
method: :rms,
width: 1800,
height: 280,
background_color: "#ffffff",
color: "#3333ff",
force: true,
quiet: true
}
waveform = "./public/waveforms/#{File.basename(#mix.sound_file.to_s, File.extname(#mix.sound_file.to_s))}.png"
::Waveform.new("./public" + #mix.sound_file.to_s, nil).delay.generate(waveform, options)
flash[:success] = "Mix successfully uploaded"
redirect_to mix_url(#mix)
else
render :new
end
end
def show
#mix = Mix.find(params[:id])
end
end
I get an error saying: undefined methodname' for nil:NilClass`, here is the full stack trace:
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:25:in `block in initialize'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `yield'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `default'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `block in initialize'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `yield'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `default'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `block in initialize'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `yield'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `default'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `block in initialize'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `yield'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `default'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:27:in `block in initialize'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:102:in `yield'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:102:in `default'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:102:in `accept'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:447:in `block in dump_ivars'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:445:in `each'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:445:in `dump_ivars'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:124:in `visit_Object'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:102:in `accept'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:434:in `block in emit_coder'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:432:in `each'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:432:in `emit_coder'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:417:in `dump_coder'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:100:in `accept'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:66:in `push'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych.rb:242:in `dump'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych/core_ext.rb:14:in `psych_to_yaml'
delayed_job (3.0.3) lib/delayed/backend/base.rb:80:in `payload_object='
activerecord (3.2.3) lib/active_record/attribute_assignment.rb:85:in `block in assign_attributes'
activerecord (3.2.3) lib/active_record/attribute_assignment.rb:78:in `each'
activerecord (3.2.3) lib/active_record/attribute_assignment.rb:78:in `assign_attributes'
activerecord (3.2.3) lib/active_record/base.rb:498:in `initialize'
delayed_job (3.0.3) lib/delayed/backend/base.rb:28:in `new'
delayed_job (3.0.3) lib/delayed/backend/base.rb:28:in `enqueue'
delayed_job (3.0.3) lib/delayed/message_sending.rb:13:in `method_missing'
app/controllers/mixes_controller.rb:25:in `create'
actionpack (3.2.3) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.3) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.3) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.3) lib/active_support/callbacks.rb:414:in `_run__842168672059661955__process_action__4066633601342968686__callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.3) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.3) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
activerecord (3.2.3) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.3) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.3) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.3) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.3) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.3) lib/journey/router.rb:68:in `block in call'
journey (1.0.3) lib/journey/router.rb:56:in `each'
journey (1.0.3) lib/journey/router.rb:56:in `call'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:600:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.1) lib/rack/etag.rb:23:in `call'
rack (1.4.1) lib/rack/conditionalget.rb:35:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/cookies.rb:338:in `call'
activerecord (3.2.3) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:467:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `_run__647780415925652457__call__1911592835196459847__callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.3) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.3) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.3) lib/rails/engine.rb:479:in `call'
railties (3.2.3) lib/rails/application.rb:220:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.3) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/Users/aziz/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
Does anyone know why I am getting this error please?
This is happening because the system is trying to turn nil into a value that can be stored in YAML and is failing.
Looking at your code, I expect that is because you are passing a nil object into the variables passed to Waveform.new (the method whose operation is being delayed). The variables passed to new will need to be stored until delayed job is ready to run the process, and I expect they are stored as YAML.
Can you refactor Waveform to either make the second attribute optional (so its value doesn't have to be preserved)
::Waveform.new("./public" + #mix.sound_file.to_s).delay.generate(waveform, options)
or use something else to have the same meaning as nil. For example, pass in the symbol :none. Then the line becomes:
::Waveform.new("./public" + #mix.sound_file.to_s, :none).delay.generate(waveform, options)
I just can't seem to figure this one out...
As far as I know, you have to provide an instance variable to the form_for view helper, but it raises an error when I do that...
For a simple scaffold form_for I get an argument error wrong number of arguments (1 for 0) when supplying the instance of the model on a new action.
The relevan code:
Controller
class AdminMessagesController < ApplicationController
before_filter :authenticate_user!
load_and_authorize_resource
def new
#admin_message = AdminMessage.new
logger.debug instance_variables
respond_to do |format|
format.html # new.html.erb
format.json { render json: #admin_message }
end
end
Controller instance_variables
[:#_routes, :#_action_has_layout, :#_view_context_class, :#_headers, :#_status, :#_request, :#_response, :#_env, :#_prefixes, :#_lookup_context, :#_action_name, :#_response_body, :#_config, :#_params, :#current_user, :#current_ability, :#admin_message, :#_authorized]
Model
class AdminMessage < ActiveRecord::Base
validates_presence_of :subject, :body
end
Roles (CanCan)
class Ability
include CanCan::Ability
def initialize(user)
# Define abilities for the passed in user here. For example:
user ||= User.new # guest user (not logged in)
if user.admin?
can :manage, :all
elsif user
can :manage, [Profile, BackgroundImage], :user_id => user.id
can :manage, Page, :profile => { :user_id => user.id }
can :read, [Profile]
else
can :read, [Profile]
end
New View
- #title = "New Message"
= link_to 'Back', admin_messages_path, class: 'button'
%hr
%h1= #title
= render 'form'
Form View
= form_for #admin_message do |f|
-if #admin_message.errors.any?
#error_explanation
%h2= "#{pluralize(#admin_message.errors.count, "error")} prohibited this admin_message from being saved:"
%ul
- #admin_message.errors.full_messages.each do |msg|
%li= msg
.field
= f.label :subject
= f.text_field :subject
.field
= f.label :body
= f.text_area :body
.field
= f.label :send
= f.check_box :send
.actions
= f.submit 'Save'
Routes
resources :admin_messages
Stack Trace
ArgumentError in Admin_messages#new
Showing /example/app/views/admin_messages/_form.html.haml where line #4 raised:
wrong number of arguments (1 for 0)
Extracted source (around line #4):
1: -# - puts self.public_methods
2: -# - puts self.instance_variables
3:
4: = form_for #admin_message do |f|
5: -if #admin_message.errors.any?
6: #error_explanation
7: %h2= "#{pluralize(#admin_message.errors.count, "error")} prohibited this admin_message from being saved:"
Full Stack Trace
activerecord (3.1.2) lib/active_record/attribute_methods/read.rb:89:in `_send'
activerecord (3.1.2) lib/active_record/attribute_methods/primary_key.rb:8:in `to_key'
actionpack (3.1.2) lib/action_controller/record_identifier.rb:76:in `record_key_for_dom_id'
actionpack (3.1.2) lib/action_controller/record_identifier.rb:57:in `dom_id'
actionpack (3.1.2) lib/action_view/helpers/form_helper.rb:388:in `apply_form_for_options!'
actionpack (3.1.2) lib/action_view/helpers/form_helper.rb:365:in `form_for'
haml (3.1.3) lib/haml/helpers/action_view_mods.rb:182:in `form_for_with_haml'
haml (3.1.3) lib/haml/helpers/xss_mods.rb:132:in `form_for_with_haml_xss'
app/views/admin_messages/_form.html.haml:4:in `_app_views_admin_messages__form_html_haml__1654301332507974170_70145208768920'
actionpack (3.1.2) lib/action_view/template.rb:171:in `block in render'
activesupport (3.1.2) lib/active_support/notifications.rb:55:in `instrument'
actionpack (3.1.2) lib/action_view/template.rb:169:in `render'
actionpack (3.1.2) lib/action_view/renderer/partial_renderer.rb:256:in `render_partial'
actionpack (3.1.2) lib/action_view/renderer/partial_renderer.rb:228:in `block (2 levels) in render'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:33:in `block in instrument'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `block in instrument'
activesupport (3.1.2) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `instrument'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:33:in `instrument'
actionpack (3.1.2) lib/action_view/renderer/partial_renderer.rb:227:in `block in render'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:22:in `wrap_formats'
actionpack (3.1.2) lib/action_view/renderer/partial_renderer.rb:219:in `render'
actionpack (3.1.2) lib/action_view/renderer/renderer.rb:41:in `render_partial'
actionpack (3.1.2) lib/action_view/helpers/rendering_helper.rb:27:in `render'
haml (3.1.3) lib/haml/helpers/action_view_mods.rb:11:in `block in render_with_haml'
haml (3.1.3) lib/haml/helpers.rb:90:in `non_haml'
haml (3.1.3) lib/haml/helpers/action_view_mods.rb:11:in `render_with_haml'
app/views/admin_messages/new.html.haml:6:in `_app_views_admin_messages_new_html_haml__1382734216418550338_70145179834340'
actionpack (3.1.2) lib/action_view/template.rb:171:in `block in render'
activesupport (3.1.2) lib/active_support/notifications.rb:55:in `instrument'
actionpack (3.1.2) lib/action_view/template.rb:169:in `render'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:40:in `block (2 levels) in render_template'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:33:in `block in instrument'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `block in instrument'
activesupport (3.1.2) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `instrument'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:33:in `instrument'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:39:in `block in render_template'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:47:in `render_with_layout'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:38:in `render_template'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:12:in `block in render'
actionpack (3.1.2) lib/action_view/renderer/abstract_renderer.rb:22:in `wrap_formats'
actionpack (3.1.2) lib/action_view/renderer/template_renderer.rb:9:in `render'
actionpack (3.1.2) lib/action_view/renderer/renderer.rb:36:in `render_template'
actionpack (3.1.2) lib/action_view/renderer/renderer.rb:17:in `render'
actionpack (3.1.2) lib/abstract_controller/rendering.rb:120:in `_render_template'
actionpack (3.1.2) lib/action_controller/metal/streaming.rb:250:in `_render_template'
actionpack (3.1.2) lib/abstract_controller/rendering.rb:114:in `render_to_body'
actionpack (3.1.2) lib/action_controller/metal/renderers.rb:30:in `render_to_body'
actionpack (3.1.2) lib/action_controller/metal/compatibility.rb:43:in `render_to_body'
actionpack (3.1.2) lib/abstract_controller/rendering.rb:99:in `render'
actionpack (3.1.2) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.1.2) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/Users/victorstan/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:310:in `realtime'
activesupport (3.1.2) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:78:in `cleanup_view_runtime'
activerecord (3.1.2) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:39:in `render'
actionpack (3.1.2) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (3.1.2) lib/action_controller/metal/mime_responds.rb:268:in `block in retrieve_response_from_mimes'
actionpack (3.1.2) lib/action_controller/metal/mime_responds.rb:195:in `call'
actionpack (3.1.2) lib/action_controller/metal/mime_responds.rb:195:in `respond_to'
app/controllers/admin_messages_controller.rb:33:in `new'
actionpack (3.1.2) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.1.2) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.1.2) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.1.2) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.1.2) lib/active_support/callbacks.rb:434:in `_run__1801240210143518790__process_action__2938188811796736454__callbacks'
activesupport (3.1.2) lib/active_support/callbacks.rb:386:in `_run_process_action_callbacks'
activesupport (3.1.2) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.1.2) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.1.2) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `block in instrument'
activesupport (3.1.2) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.1.2) lib/active_support/notifications.rb:53:in `instrument'
actionpack (3.1.2) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.1.2) lib/action_controller/metal/params_wrapper.rb:201:in `process_action'
activerecord (3.1.2) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.1.2) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.1.2) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.1.2) lib/action_controller/metal.rb:193:in `dispatch'
actionpack (3.1.2) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.1.2) lib/action_controller/metal.rb:236:in `block in action'
actionpack (3.1.2) lib/action_dispatch/routing/route_set.rb:65:in `call'
actionpack (3.1.2) lib/action_dispatch/routing/route_set.rb:65:in `dispatch'
actionpack (3.1.2) lib/action_dispatch/routing/route_set.rb:29:in `call'
rack-mount (0.8.3) lib/rack/mount/route_set.rb:152:in `block in call'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:96:in `block in recognize'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:82:in `optimized_each'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:95:in `recognize'
rack-mount (0.8.3) lib/rack/mount/route_set.rb:141:in `call'
actionpack (3.1.2) lib/action_dispatch/routing/route_set.rb:532:in `call'
sass (3.1.10) lib/sass/plugin/rack.rb:54:in `call'
warden (1.1.0) lib/warden/manager.rb:35:in `block in call'
warden (1.1.0) lib/warden/manager.rb:34:in `catch'
warden (1.1.0) lib/warden/manager.rb:34:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.3.5) lib/rack/etag.rb:23:in `call'
rack (1.3.5) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/flash.rb:247:in `call'
rack (1.3.5) lib/rack/session/abstract/id.rb:195:in `context'
rack (1.3.5) lib/rack/session/abstract/id.rb:190:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/cookies.rb:331:in `call'
activerecord (3.1.2) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.1.2) lib/active_record/connection_adapters/abstract/connection_pool.rb:477:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (3.1.2) lib/active_support/callbacks.rb:392:in `_run_call_callbacks'
activesupport (3.1.2) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.1.2) lib/action_dispatch/middleware/callbacks.rb:28:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/reloader.rb:68:in `call'
rack (1.3.5) lib/rack/sendfile.rb:101:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call'
railties (3.1.2) lib/rails/rack/logger.rb:13:in `call'
rack (1.3.5) lib/rack/methodoverride.rb:24:in `call'
rack (1.3.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.1.2) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.3.5) lib/rack/lock.rb:15:in `call'
actionpack (3.1.2) lib/action_dispatch/middleware/static.rb:53:in `call'
railties (3.1.2) lib/rails/engine.rb:456:in `call'
rack (1.3.5) lib/rack/content_length.rb:14:in `call'
railties (3.1.2) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.3.5) lib/rack/handler/webrick.rb:59:in `service'
/Users/victorstan/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/Users/victorstan/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/Users/victorstan/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
Update
If I try to inspect the #admin_message var in the controller #new action the error message changes to indicate and error in the controller instead of the view...
ArgumentError in AdminMessagesController#new
wrong number of arguments (1 for 0)
This happens if I add puts #admin_message.inspect to the controller action new
Moral of the story: Don't use send as a table column name!