controller

include IdeasHelper

def show
    @idea = Idea.find(params[:id])
    
    # attach open graph meta tags here
    set_meta_tags :open_graph => {
      :title => @idea.title ? @idea.title : "",
      :description => @idea.description ? @idea.description : "",
      :type  => :blog,
      :url   => idea_url(params[:id]),
      :image => ideas_thumbnail(@idea)
    }
    
    respond_with(@idea)

end

gistfile1.txt

ArgumentError in Ideas#index

Showing /vagrant/app/views/ideas/index.json.rabl where line #1 raised:

wrong number of arguments (0 for 1)
Extracted source (around line #1):

1: collection @ideas
2: extends 'ideas/show'
Trace of template inclusion: app/views/ideas/index.html.haml

Rails.root: /vagrant

Application Trace | Framework Trace | Full Trace
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/sprockets/helpers/rails_helper.rb:54:in `asset_path'
app/helpers/ideas_helper.rb:24:in `ideas_thumbnail'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:228:in `method_missing'
app/views/ideas/show.json.rabl:7:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:76:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:76:in `node'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:41:in `block in compile_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:40:in `each'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:40:in `compile_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:20:in `block in build'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:141:in `cache_results'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:19:in `build'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:46:in `to_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:34:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:257:in `cache_results'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:34:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/partials.rb:27:in `object_to_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/partials.rb:14:in `partial'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:111:in `extends'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:33:in `block in compile_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:32:in `each'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:32:in `compile_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:20:in `block in build'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:141:in `cache_results'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/builder.rb:19:in `build'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:48:in `block in to_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:48:in `map'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:48:in `to_hash'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:57:in `to_json'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:34:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:257:in `cache_results'
/home.rvm/gems/ruby-1.9.2-p318/gems/rabl-0.6.10/lib/rabl/engine.rb:34:in `render'
app/views/ideas/index.json.rabl:1:in `_app_views_ideas_index_json_rabl__9759940_102273610'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/template.rb:143:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:125:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/template.rb:141:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:41:in `block (2 levels) in render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `block in instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:40:in `block in render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:48:in `render_with_layout'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:39:in `render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:12:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:156:in `block in render_with_newrelic'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/method_tracer.rb:242:in `trace_execution_scoped'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:155:in `render_with_newrelic'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/renderer.rb:36:in `render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/renderer.rb:17:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/helpers/rendering_helper.rb:24:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/haml-3.1.4/lib/haml/helpers/action_view_mods.rb:11:in `block in render_with_haml'
/home.rvm/gems/ruby-1.9.2-p318/gems/haml-3.1.4/lib/haml/helpers.rb:90:in `non_haml'
/home.rvm/gems/ruby-1.9.2-p318/gems/haml-3.1.4/lib/haml/helpers/action_view_mods.rb:11:in `render_with_haml'
app/views/ideas/index.html.haml:4:in `_app_views_ideas_index_html_haml___564713852_98795300'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/template.rb:143:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:125:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/template.rb:141:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:41:in `block (2 levels) in render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `block in instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:40:in `block in render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:48:in `render_with_layout'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:39:in `render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/template_renderer.rb:12:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:156:in `block in render_with_newrelic'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/method_tracer.rb:242:in `trace_execution_scoped'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:155:in `render_with_newrelic'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/renderer.rb:36:in `render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_view/renderer/renderer.rb:17:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/rendering.rb:109:in `_render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/streaming.rb:225:in `_render_template'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/rendering.rb:103:in `render_to_body'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/renderers.rb:28:in `render_to_body'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/rendering.rb:88:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/rendering.rb:16:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/home.rvm/rubies/ruby-1.9.2-p318/lib/ruby/1.9.1/benchmark.rb:310:in `realtime'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/core_ext/benchmark.rb:5:in `ms'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:40:in `block in render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
/home.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.0/lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:39:in `render'
/home.rvm/gems/ruby-1.9.2-p318/gems/meta-tags-1.2.6/lib/meta_tags/controller_helper.rb:28:in `render_with_meta_tags'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/implicit_render.rb:10:in `default_render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/mime_responds.rb:268:in `block in retrieve_response_from_mimes'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/responder.rb:229:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/responder.rb:229:in `default_render'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/responder.rb:160:in `to_html'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/responder.rb:153:in `respond'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/responder.rb:146:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/mime_responds.rb:238:in `respond_with'
app/controllers/ideas_controller.rb:55:in `index'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/base.rb:167:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/rendering.rb:10:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/callbacks.rb:18:in `block in process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/callbacks.rb:425:in `_run__960090965__process_action__839124838__callbacks'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/callbacks.rb:405:in `__run_callback'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/callbacks.rb:81:in `run_callbacks'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/callbacks.rb:17:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/rescue.rb:29:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `block in instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/notifications.rb:123:in `instrument'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.0/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:34:in `block in process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:255:in `block in perform_action_with_newrelic_trace'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/method_tracer.rb:242:in `trace_execution_scoped'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:250:in `perform_action_with_newrelic_trace'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:33:in `process_action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/base.rb:121:in `process'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/abstract_controller/rendering.rb:45:in `process'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal.rb:203:in `dispatch'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_controller/metal.rb:246:in `block in action'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/routing/route_set.rb:66:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/routing/route_set.rb:66:in `dispatch'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/routing/route_set.rb:30:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/journey-1.0.3/lib/journey/router.rb:68:in `block in call'
/home.rvm/gems/ruby-1.9.2-p318/gems/journey-1.0.3/lib/journey/router.rb:56:in `each'
/home.rvm/gems/ruby-1.9.2-p318/gems/journey-1.0.3/lib/journey/router.rb:56:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/routing/route_set.rb:570:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:177:in `call!'
/home.rvm/gems/ruby-1.9.2-p318/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:157:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/rack/browser_monitoring.rb:23:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/newrelic_rpm-3.3.4.1/lib/new_relic/rack/developer_mode.rb:24:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/airbrake-3.0.9/lib/airbrake/rack.rb:27:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/sass-3.1.16/lib/sass/plugin/rack.rb:54:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/warden-1.1.1/lib/warden/manager.rb:35:in `block in call'
/home.rvm/gems/ruby-1.9.2-p318/gems/warden-1.1.1/lib/warden/manager.rb:34:in `catch'
/home.rvm/gems/ruby-1.9.2-p318/gems/warden-1.1.1/lib/warden/manager.rb:34:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/rack-1.4.1/lib/rack/etag.rb:23:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/rack-1.4.1/lib/rack/conditionalget.rb:25:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/head.rb:14:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/flash.rb:242:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:205:in `context'
/home.rvm/gems/ruby-1.9.2-p318/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:200:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/cookies.rb:338:in `call'
/home.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.0/lib/active_record/query_cache.rb:64:in `call'
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/home.rvm/gems/ruby-1.9.2-p318/gems/actionpack-3.2.0/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
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/home.rvm/gems/ruby-1.9.2-p318/gems/activesupport-3.2.0/lib/active_support/callbacks.rb:405:in `__run_callback'
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Request

Parameters:

None
Show session dump

Show env dump

Response

Headers:

None

helper

module IdeasHelper
  def ideas_image_tag(id=nil, size="thumbnail")
    unless id.nil?
      idea = Idea.find(id)
      image_tag("ideas/#{idea.image}/#{size}",
        :data => {:src => idea.image}, :class => 'image')
    else
      raise
    end
  end


  def ideas_image(idea, src=nil, size="thumbnail")
    if @idea.nil? or @idea.image.nil?
      image_tag("ideas/#{src}/thumbnail.jpg",
        :data => {:src => src}, :class => 'image')
    else
      image_tag("ideas/#{src}/thumbnail.jpg",
        :data => {:src => src}, :class => 'image'+(' image-selected' if @idea.image == src).to_s)
    end
  end

  def ideas_thumbnail(idea)
    request.protocol+request.host_with_port+asset_path+"ideas/#{idea.image}/thumbnail.jpg"
  end

end