On my rails app I have implemented AuthLogic and CanCan. However when trying to figure out if the user can manage an article (checks if he is owner through the article.user_id) with CanCan I am running into issues. This should be straight forward I don't know what I'm doing wrong.
User has_many Articles
class Ability
include CanCan::Ability
def initialize(user)
user ||= User.new
can :read, :all
can :manage, Article do |article|
article.user_id == user.id
end
end
end
I get the following error when going to /articles/index
undefined method `user' for #<Array:0x1035c5158>
Extracted source (around line #15):
12: <td><%= article.created_at %></td>
13: <td><%= article.user.login %></td>
14: <td><%= link_to 'View', article %></td>
15: <% if can? :manage, article %>
16: <td><%= link_to 'Edit', edit_article_path(article) %></td>
17: <% end %>
18: <% if can? :manage, article %>
app/models/ability.rb:9:in `try'
app/models/ability.rb:9:in `initialize'
cancan (1.3.4) lib/cancan/can_definition.rb:101:in `call'
cancan (1.3.4) lib/cancan/can_definition.rb:101:in `call_block'
cancan (1.3.4) lib/cancan/can_definition.rb:29:in `matches_conditions?'
cancan (1.3.4) lib/cancan/ability.rb:54:in `can?'
authlogic (2.1.6) lib/authlogic/session/password.rb:127:in `detect'
cancan (1.3.4) lib/cancan/ability.rb:53:in `each'
cancan (1.3.4) lib/cancan/ability.rb:53:in `detect'
cancan (1.3.4) lib/cancan/ability.rb:53:in `can?'
cancan (1.3.4) lib/cancan/controller_additions.rb:228:in `can?'
actionpack (3.0.0) lib/abstract_controller/helpers.rb:55:in `send'
actionpack (3.0.0) lib/abstract_controller/helpers.rb:55:in `can?'
app/views/articles/_articles.html.erb:15:in `_app_views_articles__articles_html_erb__1624837607_2174751840_1924990'
app/views/articles/_articles.html.erb:8:in `each'
app/views/articles/_articles.html.erb:8:in `_app_views_articles__articles_html_erb__1624837607_2174751840_1924990'
actionpack (3.0.0) lib/action_view/template.rb:135:in `send'
actionpack (3.0.0) lib/action_view/template.rb:135:in `render'
activesupport (3.0.0) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
actionpack (3.0.0) lib/action_view/render/partials.rb:294:in `render_partial'
actionpack (3.0.0) lib/action_view/render/partials.rb:223:in `render'
activesupport (3.0.0) lib/active_support/notifications.rb:52:in `instrument'
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actionpack (3.0.0) lib/action_view/render/partials.rb:221:in `render'
actionpack (3.0.0) lib/action_view/render/partials.rb:334:in `_render_partial'
actionpack (3.0.0) lib/action_view/render/rendering.rb:31:in `render'
app/views/articles/index.html.erb:5:in `_app_views_articles_index_html_erb___1319251192_2174766940_0'
actionpack (3.0.0) lib/action_view/template.rb:135:in `send'
actionpack (3.0.0) lib/action_view/template.rb:135:in `render'
activesupport (3.0.0) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
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activesupport (3.0.0) lib/active_support/notifications.rb:52:in `instrument'
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actionpack (3.0.0) lib/action_view/render/rendering.rb:26:in `render'
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actionpack (3.0.0) lib/abstract_controller/rendering.rb:108:in `render_to_body'
actionpack (3.0.0) lib/action_controller/metal/renderers.rb:47:in `render_to_body'
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actionpack (3.0.0) lib/action_controller/metal/rendering.rb:17:in `render'
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actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:40:in `render'
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rack (1.2.1) lib/rack/handler/webrick.rb:13:in `run'
rack (1.2.1) lib/rack/server.rb:213:in `start'
railties (3.0.0) lib/rails/commands/server.rb:65:in `start'
railties (3.0.0) lib/rails/commands.rb:30
railties (3.0.0) lib/rails/commands.rb:27:in `tap'
railties (3.0.0) lib/rails/commands.rb:27
script/rails:6:in `require'
script/rails:6
Here is my view:
<% if can? :manage, article %>
<td><%= link_to 'Edit', edit_article_path(article) %></td>
<% end %>
<% if can? :manage, article %>
<td><%= link_to 'Delete', article, :method => :delete %></td>
<% end %>
Here is my controller:
def index
#articles = Article.find(:all)
end
Not sure exactly what your problem cause is without a trace, but I find I often have to check for nil when using a value, i.e. in your example:
can :manage, Article do |article|
article && article.user_id == user.id
end
it seems that in certain situations the block argument is nil
According to http://github.com/ryanb/cancan/wiki/defining-abilities-with-hashes there may be a cleaner way:
can :manage, Article, :user_id => user.id
I would try that method first, see how you go.
Related
Hi all SO users fixing bugs on Thanksgiving,
My delayed job setup is working fine, I have it running in production and development, but when accessing the users section of rails admin, I get the error
uninitialized constant ActiveRecord::Base::Delayed::Job
Am I supposed to define a delayed job class somewhere? If so, what's the correct syntax for that? Delayed::Job or DelayedJob? I've tried doing this with no success.
I also ran the migration to create the jobs table. Maybe there is an association between user and delayed job that is defined somewhere? Not too sure...
Here's a full trace:
ActionView::Template::Error (uninitialized constant ActiveRecord::Base::Delayed::Job):
10:
11: export_action = RailsAdmin::Config::Actions.find(:export, { :controller => self.controller, :abstract_model => #abstract_model })
12: export_action = export_action && authorized?(export_action.authorization_key, #abstract_model) ? export_action : nil
13:
14: properties = #model_config.list.with(:controller => self.controller, :view => self, :object => #abstract_model.model.new).visible_fields
15: # columns paginate
16: #filterable_fields = #model_config.list.fields.select(&:filterable?)
activerecord (3.2.3) lib/active_record/inheritance.rb:119:in `compute_type'
activerecord (3.2.3) lib/active_record/reflection.rb:172:in `klass'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:233:in `association_model_lookup'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:70:in `block (2 levels) in associations'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:63:in `call'
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/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:33:in `block in <class:Association>'
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/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:68:in `block in register_instance_option'
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It looks like some class somewhere is associated with the Delayed::Job class. I'm guessing that you've got the class_name option on that association with Delayed::Job specified. I'm not sure how that would work in practice as Delayed::Job isn't an active record class. You'd really have to associate with the active record backend for delayed jobs (Delayed::Backend::ActiveRecord::Job).
In the first instance it'd be worth commenting out that association and seeing if it works without it. In the second instance it'd be worth rethinking how to associate your users with the jobs being processed.
I have a problem with ActiveAdmin using Ruby ruby 1.9.2p290 and Ruby on Rails 3.2.1.
I used this wiki page to setup the resource for the AdminUsers that works perfectly: Your First Admin Resource: AdminUser
After that I wanted to create the resource for my project model. The migrations for that looks like this:
class CreateProjects < ActiveRecord::Migration
def change
create_table :projects do |t|
t.string :name
t.text :description
t.boolean :isactive
t.timestamps
end
end
end
class AddSlugToProjects < ActiveRecord::Migration
def change
add_column :projects, :slug, :string
add_index :projects, :slug
end
end
My project model:
class Project < ActiveRecord::Base
scope :isactive, :conditions => ["isactive = ?",true]
extend FriendlyId
friendly_id :name, use: [:slugged, :history]
attr_accessible :name, :description, :isactive
end
And that's the project_controller:
class ProjectsController < ApplicationController
def index
#
# #projects gets filled in application_controller to be always
# available for the twitter bootstrap navbar
# #projects = Project.isactive.find(:all, :order => 'LOWER(name) asc')
#
end
def show
#project = Project.isactive.find(params[:id])
if request.path != project_path(#project)
redirect_to #project, :status => :moved_permanently
end
end
end
The admin/projects.rb is currently 'empty'
ActiveAdmin.register Project do
end
And after all that, everything I get is the following error:
Started GET "/admin/projects" for 192.168.0.2 at 2012-02-21 20:58:49 +0100
Processing by Admin::ProjectsController#index as HTML
Project Load (0.1ms) SELECT "projects".* FROM "projects" WHERE (isactive = 't') ORDER BY LOWER(name) asc
AdminUser Load (0.1ms) SELECT "admin_users".* FROM "admin_users" WHERE "admin_users"."id" = 2 LIMIT 1
Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/activeadmin-0.4.1/app/views/active_admin/resource/index.html.arb (11.7ms)
Completed 500 Internal Server Error in 54ms
ActionView::Template::Error (undefined method `reorder' for #<Array:0xa3ecd44>):
1: render renderer_for(:index)
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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__471556791__call__937320005__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/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/_trace.erb (5.1ms)
Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.1ms)
Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (9.8ms)
And I have no idea what the problem is...
Ah, I've found the solution.
I don't know exactly why the error happened but I had to change my application_controller.
In the application_controller I fetched all projects to #projects:
before_filter :getActiveProjects
protected
def getActiveProjects
#projects = Project.isactive.find(:all, :order => 'LOWER(name) asc')
end
That was confusing ActiveAdmin. After I changed that to
before_filter :getActiveProjects
protected
def getActiveProjects
#projects_all = Project.isactive.find(:all, :order => 'LOWER(name) asc')
end
and projects_controller index action to
def index
#projects = #projects_all
end
everything worked fine ;)
An easier solution is to just skip the filter in the particular active admin controller:
ActiveAdmin.register Project do
controller do
skip_before_filter :getActiveProjects
end
end
The active admin make special processing of #resource variables. Where resource is correponding class name passed to register method. So for code:
ActiveAdmin.register Project do
end
name of variable is
`#project`
We must not assign value to variable with such name. Also such varibles may be object of ActiveRecord::Relation class. And how #Oliver write the name like #projects_all is good choice. The using of skip_before_filter is solve the problem too.
One crafty thing need to check. The controller of resource may not have any filters. The controller of resource may not exists at all. What is the filter name to put to skip_before_filter? And where is such filters? The default application controller is used anyway. The filter may be installed at main application controller. The error message of this problem is not informative at all. So need to check application controller for installed filters too.
I'm working on making an image server that is similar to that of Flickr's. In my routes file I have:
get "/image/server/:secret_:id(_:size).:format", :to => "api/images#server", :as => :api_image
And then in my view I'm calling the following but keep getting a ActionController::RoutingError exception:
api_image_path({ :secret=>"07fde2a9c76de3d16fb70e772d944652", :id=>2, :size=>"t", :format=>"png" })
Error:
No route matches {:controller=>"api/images", :action=>"server", :secret=>"07fde2a9c76de3d16fb70e772d944652", :id=>2, :size=>"t", :format=>"png"}
Update
The Request parameters look like the following. It seems like it's not detecting the underscore between the secret and id. It's merging it all into secret. For example if I request: http://example.com/image/server/07fde2a9c76de3d16fb70e772d944652_2_n.jpg I'll get the following in my params:
{"secret_"=>"07fde2a9c76de3d16fb70e772d944652_2_",
"id"=>"n",
"format"=>"jpg"}
It's taking the whole string right up to before the _n and assigning that to secret, which for some reason it's calling it secret_.
ActionController::RoutingError (Full Trace)
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:424:in `raise_routing_error'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:397:in `generate'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:453:in `generate'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:481:in `url_for'
actionpack (3.0.3) lib/action_dispatch/routing/url_for.rb:131:in `url_for'
actionpack (3.0.3) lib/action_view/helpers/url_helper.rb:99:in `url_for'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:195:in `api_image_url'
app/views/services/about.html.erb:8:in `_app_views_services_about_html_erb__1824827504506770107_2158066880_1802331327662141069'
actionpack (3.0.3) lib/action_view/template.rb:135:in `block in render'
activesupport (3.0.3) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.3) lib/action_view/template.rb:127:in `render'
actionpack (3.0.3) lib/action_view/render/rendering.rb:59:in `block in _render_template'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.3) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.3) lib/action_view/render/rendering.rb:56:in `_render_template'
actionpack (3.0.3) lib/action_view/render/rendering.rb:26:in `render'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:114:in `_render_template'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:108:in `render_to_body'
actionpack (3.0.3) lib/action_controller/metal/renderers.rb:47:in `render_to_body'
actionpack (3.0.3) lib/action_controller/metal/compatibility.rb:55:in `render_to_body'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:101:in `render_to_string'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:92:in `render'
actionpack (3.0.3) lib/action_controller/metal/rendering.rb:17:in `render'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.0.3) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/usr/local/Cellar/ruby/1.9.2-p0/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
activesupport (3.0.3) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:78:in `cleanup_view_runtime'
activerecord (3.0.3) lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
thinking-sphinx (2.0.3) lib/thinking_sphinx/action_controller.rb:12:in `cleanup_view_runtime'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:39:in `render'
actionpack (3.0.3) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (3.0.3) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.0.3) lib/abstract_controller/base.rb:151:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/rendering.rb:11:in `process_action'
actionpack (3.0.3) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.0.3) lib/active_support/callbacks.rb:456:in `block in _run__3222905760235059467__process_action__3328463717343760166__callbacks'
activesupport (3.0.3) lib/active_support/callbacks.rb:220:in `block in _conditional_callback_around_188'
activesupport (3.0.3) lib/active_support/callbacks.rb:330:in `around'
activesupport (3.0.3) lib/active_support/callbacks.rb:314:in `_callback_around_35'
activesupport (3.0.3) lib/active_support/callbacks.rb:219:in `_conditional_callback_around_188'
activesupport (3.0.3) lib/active_support/callbacks.rb:435:in `_run__3222905760235059467__process_action__3328463717343760166__callbacks'
activesupport (3.0.3) lib/active_support/callbacks.rb:409:in `_run_process_action_callbacks'
activesupport (3.0.3) lib/active_support/callbacks.rb:93:in `run_callbacks'
actionpack (3.0.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.3) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.0.3) lib/abstract_controller/base.rb:120:in `process'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:40:in `process'
actionpack (3.0.3) lib/action_controller/metal.rb:138:in `dispatch'
actionpack (3.0.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.0.3) lib/action_controller/metal.rb:178:in `block in action'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:62:in `call'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:62:in `dispatch'
actionpack (3.0.3) 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:75: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 (3.0.3) lib/action_dispatch/routing/route_set.rb:492:in `call'
oa-core (0.2.1) lib/omniauth/strategy.rb:55:in `call!'
oa-core (0.2.1) lib/omniauth/strategy.rb:22:in `call'
oa-core (0.2.1) lib/omniauth/strategy.rb:55:in `call!'
oa-core (0.2.1) lib/omniauth/strategy.rb:22:in `call'
oa-core (0.2.1) lib/omniauth/strategy.rb:55:in `call!'
oa-core (0.2.1) lib/omniauth/strategy.rb:22:in `call'
oa-core (0.2.1) lib/omniauth/builder.rb:30:in `call'
lib/flash_session_cookie_middleware.rb:20:in `call'
warden (1.0.3) lib/warden/manager.rb:35:in `block in call'
warden (1.0.3) lib/warden/manager.rb:34:in `catch'
warden (1.0.3) lib/warden/manager.rb:34:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.2.2) lib/rack/methodoverride.rb:24:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/flash.rb:182:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call'
lib/flash_session_cookie_middleware.rb:20:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/cookies.rb:295:in `call'
activerecord (3.0.3) lib/active_record/query_cache.rb:32:in `block in call'
activerecord (3.0.3) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
activerecord (3.0.3) lib/active_record/query_cache.rb:12:in `cache'
activerecord (3.0.3) lib/active_record/query_cache.rb:31:in `call'
activerecord (3.0.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:353:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call'
activesupport (3.0.3) lib/active_support/callbacks.rb:415:in `_run_call_callbacks'
actionpack (3.0.3) lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.2.2) lib/rack/sendfile.rb:107:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/show_exceptions.rb:46:in `call'
railties (3.0.3) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.2) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.2) lib/rack/lock.rb:11:in `block in call'
<internal:prelude>:10:in `synchronize'
rack (1.2.2) lib/rack/lock.rb:11:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.3) lib/rails/application.rb:168:in `call'
railties (3.0.3) lib/rails/application.rb:77:in `method_missing'
passenger (3.0.2) lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
passenger (3.0.2) lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
passenger (3.0.2) lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
passenger (3.0.2) lib/phusion_passenger/rack/application_spawner.rb:205:in `start_request_handler'
passenger (3.0.2) lib/phusion_passenger/rack/application_spawner.rb:170:in `block in handle_spawn_application'
passenger (3.0.2) lib/phusion_passenger/utils.rb:479:in `safe_fork'
passenger (3.0.2) lib/phusion_passenger/rack/application_spawner.rb:165:in `handle_spawn_application'
passenger (3.0.2) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
passenger (3.0.2) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
passenger (3.0.2) lib/phusion_passenger/abstract_server.rb:180:in `start'
passenger (3.0.2) lib/phusion_passenger/rack/application_spawner.rb:128:in `start'
passenger (3.0.2) lib/phusion_passenger/spawn_manager.rb:253:in `block (2 levels) in spawn_rack_application'
passenger (3.0.2) lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
passenger (3.0.2) lib/phusion_passenger/spawn_manager.rb:246:in `block in spawn_rack_application'
passenger (3.0.2) lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'
<internal:prelude>:10:in `synchronize'
passenger (3.0.2) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
passenger (3.0.2) lib/phusion_passenger/spawn_manager.rb:244:in `spawn_rack_application'
passenger (3.0.2) lib/phusion_passenger/spawn_manager.rb:137:in `spawn_application'
passenger (3.0.2) lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
passenger (3.0.2) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
passenger (3.0.2) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
passenger (3.0.2) helper-scripts/passenger-spawn-server:99:in `<main>'
The issues it that the Routing Parser only supports forward slash, dot and question marker as the seperator in it's default collection, so it doesn't see the '_' as a valid separator and your are getting a match off everything except one character for :id when you match. Additionally your parameter is secret_ because the router doesn't recognize _ as a separator and includes it in your segment name.
I think your choices are either to move from _ to forward slash (this would at least temporarily confirm if the problem is real. Or write a custom constraint as described in section 3.8 and 3.10 of the routing guide here: http://guides.rubyonrails.org/routing.html#advanced-constraints
You can read more on the route matching here: http://apidock.com/rails/ActionController/Routing
and here
https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/routing/mapper.rb
Underscore is a valid character for a URL parameter. I hope this would solve your problem
get "/image/server/:secret_:id(_:size).:format", :to => "api/images#server", :as => :api_image, :contraints => {:secret => /[\w\d]+/, :id => /[\d]+/, :size => /\w/}
I'm following the rails tutorial # http://railstutorial.org
On chapter 11, I'm having issues with showing microposts from users.
Based on the tutorial, the RSPEC test should pass. However, it fails
1) UsersController GET 'show' should show the user's microposts
Failure/Error: get :show, :id => #user
undefined method `model_name' for NilClass:Class
# ./app/views/users/show.html.erb:10:in `_app_views_users_show_html_erb__49
# ./spec/controllers/users_controller_spec.rb:71
When I try to access a user's page which has microposts associated with it, I get an exception :
NoMethodError in Users#show
Showing C:/Documents and Settings/XXXXX/workspace/sample_app/app/views/users/show.html.erb where line #10 raised:
undefined method `model_name' for NilClass:Class
Extracted source (around line #10):
7: </h1>
8: <% unless #user.microposts.empty? %>
9: <table class="microposts" summary="User microposts">
10: <%= render #microposts %>
11: </table>
12: <%= will_paginate #microposts %>
13: <% end %>
Rails.root: C:/Documents and Settings/XXXXX/workspace/sample_app
Application Trace | Framework Trace | Full Trace
actionpack (3.0.0) lib/action_view/render/partials.rb:319:in `partial_path'
actionpack (3.0.0) lib/action_view/render/partials.rb:207:in `setup'
actionpack (3.0.0) lib/action_view/render/partials.rb:186:in `initialize'
actionpack (3.0.0) lib/action_view/render/partials.rb:331:in `new'
actionpack (3.0.0) lib/action_view/render/partials.rb:331:in `_render_partial'
actionpack (3.0.0) lib/action_view/render/rendering.rb:31:in `render'
app/views/users/show.html.erb:10:in `_app_views_users_show_html_erb__49899798_36559632_0'
actionpack (3.0.0) lib/action_view/template.rb:135:in `send'
actionpack (3.0.0) lib/action_view/template.rb:135:in `render'
activesupport (3.0.0) lib/active_support/notifications.rb:54:in `instrument'
actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
actionpack (3.0.0) lib/action_view/render/rendering.rb:59:in `_render_template'
activesupport (3.0.0) lib/active_support/notifications.rb:52: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:in `instrument'
actionpack (3.0.0) lib/action_view/render/rendering.rb:56:in `_render_template'
actionpack (3.0.0) lib/action_view/render/rendering.rb:26:in `render'
actionpack (3.0.0) lib/abstract_controller/rendering.rb:114:in `_render_template'
actionpack (3.0.0) lib/abstract_controller/rendering.rb:108:in `render_to_body'
actionpack (3.0.0) lib/action_controller/metal/renderers.rb:47:in `render_to_body'
actionpack (3.0.0) lib/action_controller/metal/compatibility.rb:55:in `render_to_body'
actionpack (3.0.0) lib/abstract_controller/rendering.rb:101:in `render_to_string'
actionpack (3.0.0) lib/abstract_controller/rendering.rb:92:in `render'
actionpack (3.0.0) lib/action_controller/metal/rendering.rb:17:in `render'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:40:in `render'
activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in `ms'
c:/Ruby187/lib/ruby/1.8/benchmark.rb:308:in `realtime'
activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:40:in `render'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:78:in `cleanup_view_runtime'
activerecord (3.0.0) lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:39:in `render'
actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:5:in `send_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:in `process_action'
actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:in `process_action'
activesupport (3.0.0) lib/active_support/callbacks.rb:435:in `_run__434435962__process_action__453433196__callbacks'
activesupport (3.0.0) lib/active_support/callbacks.rb:409:in `send'
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 `send'
activesupport (3.0.0) lib/active_support/callbacks.rb:93:in `run_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:in `process_action'
activesupport (3.0.0) lib/active_support/notifications.rb:52: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:in `instrument'
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:in `process_action'
actionpack (3.0.0) lib/abstract_controller/base.rb:119:in `process'
actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:in `process'
actionpack (3.0.0) lib/action_controller/metal.rb:133:in `dispatch'
actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.0.0) lib/action_controller/metal.rb:173
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:in `dispatch'
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:in `call'
rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93: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:in `recognize'
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:in `call'
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:in `call'
rack (1.2.1) lib/rack/methodoverride.rb:24:in `call'
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:in `call'
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:in `call'
activerecord (3.0.0) lib/active_record/query_cache.rb:32:in `call'
activerecord (3.0.0) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
activerecord (3.0.0) lib/active_record/query_cache.rb:12:in `cache'
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:in `call'
actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46: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:in `call'
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:in `call'
railties (3.0.0) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.0) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.1) lib/rack/lock.rb:11:in `call'
rack (1.2.1) lib/rack/lock.rb:11:in `synchronize'
rack (1.2.1) lib/rack/lock.rb:11:in `call'
actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.0) lib/rails/application.rb:168:in `call'
railties (3.0.0) lib/rails/application.rb:77:in `send'
railties (3.0.0) lib/rails/application.rb:77:in `method_missing'
railties (3.0.0) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.2.1) lib/rack/content_length.rb:13:in `call'
rack (1.2.1) lib/rack/handler/webrick.rb:52:in `service'
c:/Ruby187/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
c:/Ruby187/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:162:in `start'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:95:in `start'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:92:in `each'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:92:in `start'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:23:in `start'
c:/Ruby187/lib/ruby/1.8/webrick/server.rb:82:in `start'
rack (1.2.1) lib/rack/handler/webrick.rb:13:in `run'
rack (1.2.1) lib/rack/server.rb:213:in `start'
railties (3.0.0) lib/rails/commands/server.rb:65:in `start'
railties (3.0.0) lib/rails/commands.rb:30
railties (3.0.0) lib/rails/commands.rb:27:in `tap'
railties (3.0.0) lib/rails/commands.rb:27
script/rails:6:in `require'
script/rails:6
Request
Parameters:
{"id"=>"1"}
Show session dump
Show env dump
Response
Headers:
None
I've tried to find someone with similar issues, but to no avail.
I've recopied the whole code for this chapter form the tutorial to make sure it wasn't a typo, still didn't helped.
Thanks for any help given.
I was having the same problem... took a while to figure out.
I had two instances of the show method defined in the UsersController. Once I removed the one that didn't contain a #microposts declaration, (2nd one didn't have #microposts) the tests ran as expected and the page rendered the microposts correctly.
Cheers!
a
I have a REST API that I am trying to access using Rails 3.0.1 that returns:
<Sessions>
<Session>
<Title>This is a sample title</Title>
...Misc
</Session>
<Session>
<Title>Another Title</Title>
...Misc
</Session>
</Sessions>
I have set up my session.rb class defined:
class Session < ActiveResource::Base
self.site = "http://example.com/rest"
end
The url that will return the XML is http://example.com/rest/sessions.
I then have a controller that is defined as this:
class HomeController < ApplicationController
def index
Session.all
end
end
and my view, index.html.erb, is defined:
<h1>List Sessions</h1>
<% #sessions.each do |session| %>
<div><%= session.title %></div>
<% end %>
When I try to view this page, I get the following error:
NoMethodError in HomeController#index
undefined method `collect!' for #<Hash:0x00000105178af8>
What could be causing this issue? I can access the url just fine (even using http://example.com/rest/sessions.xml). Is there a way to debug ActiveResource to see what is happening inside?
EDIT
Here is the stack trace:
activeresource (3.0.1) lib/active_resource/base.rb:885:in `instantiate_collection'
activeresource (3.0.1) lib/active_resource/base.rb:857:in `find_every'
activeresource (3.0.1) lib/active_resource/base.rb:777:in `find'
activeresource (3.0.1) lib/active_resource/base.rb:803:in `all'
app/controllers/home_controller.rb:4:in `index'
actionpack (3.0.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.0.1) lib/abstract_controller/base.rb:150:in `process_action'
actionpack (3.0.1) lib/action_controller/metal/rendering.rb:11:in `process_action'
actionpack (3.0.1) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.0.1) lib/active_support/callbacks.rb:435:in `_run__140584718597918073__process_action__4423897468290757938__callbacks'
activesupport (3.0.1) lib/active_support/callbacks.rb:409:in `_run_process_action_callbacks'
activesupport (3.0.1) lib/active_support/callbacks.rb:93:in `run_callbacks'
actionpack (3.0.1) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.0.1) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.0.1) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.1) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.1) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.0.1) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.0.1) lib/abstract_controller/base.rb:119:in `process'
actionpack (3.0.1) lib/abstract_controller/rendering.rb:40:in `process'
actionpack (3.0.1) lib/action_controller/metal.rb:133:in `dispatch'
actionpack (3.0.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.0.1) lib/action_controller/metal.rb:173:in `block in action'
actionpack (3.0.1) lib/action_dispatch/routing/route_set.rb:62:in `call'
actionpack (3.0.1) lib/action_dispatch/routing/route_set.rb:62:in `dispatch'
actionpack (3.0.1) lib/action_dispatch/routing/route_set.rb:27:in `call'
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:in `block in recognize'
rack-mount (0.6.13) lib/rack/mount/code_generation.rb:68:in `optimized_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:in `call'
actionpack (3.0.1) lib/action_dispatch/routing/route_set.rb:492:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.2.1) lib/rack/methodoverride.rb:24:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/flash.rb:182:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/cookies.rb:287:in `call'
activerecord (3.0.1) lib/active_record/query_cache.rb:32:in `block in call'
activerecord (3.0.1) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
activerecord (3.0.1) lib/active_record/query_cache.rb:12:in `cache'
activerecord (3.0.1) lib/active_record/query_cache.rb:31:in `call'
activerecord (3.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:355:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call'
activesupport (3.0.1) lib/active_support/callbacks.rb:415:in `_run_call_callbacks'
actionpack (3.0.1) lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.2.1) lib/rack/sendfile.rb:107:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/show_exceptions.rb:46:in `call'
railties (3.0.1) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.1) lib/rack/lock.rb:11:in `block in call'
<internal:prelude>:10:in `synchronize'
rack (1.2.1) lib/rack/lock.rb:11:in `call'
actionpack (3.0.1) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.1) lib/rails/application.rb:168:in `call'
railties (3.0.1) lib/rails/application.rb:77:in `method_missing'
railties (3.0.1) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.2.1) lib/rack/content_length.rb:13:in `call'
rack (1.2.1) lib/rack/handler/webrick.rb:52:in `service'
/Users/swright/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/Users/swright/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/Users/swright/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
Simple answer, if you try to session in your views it will access the Rails Session object, you have a naming problem on your hands.
Thats why the Hash error is coming, it tries to access the session Hash.
Try something like
<h1>List Sessions</h1>
<% #sessions.each do |s| %>
<div><%= s.title %></div>
<% end %>
And by the way, you might change your controller to:
class HomeController < ApplicationController
def index
#sessions = Session.all
end
end
For me the problem was the type was not defined in the xml tag
xml.instruct!
xml.posts("type"=>"array") do
#posts.each do |p|
xml.post do
xml.id("type"=>"integer") do
p.id
end
xml.title p.title
xml.content p.content
end
end
end
vs
xml.instruct!
xml.posts do
#posts.each do |p|
xml.post do
xml.id p.id
xml.title p.title
xml.content p.content
end
end
end
Hope this helps you
I had this problem and like Joel above, it was because the type wasn't defined. I found a solution here but briefly if you don't have any control over the XML you can define a custom format, and tell your ActiveResource class to use it:
class TaxAlert < ActiveResource::Base
protected
class CustomFormat
include ActiveResource::Formats::XmlFormat
def decode(xml)
ActiveResource::Formats::XmlFormat.decode(xml)['alert']
end
end
self.format = CustomFormat.new
end