thr3ads.net - Rails - what''s wrong with this code? (hitting my head against a wall) [Nov 2008]

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Greg Hauptmann

2008-Nov-22 05:35 UTC

what''s wrong with this code? (hitting my head against a wall)

Hi,

I''m just trying to load a set of options which doesn''t require
tables
(i.e. using tableless plugin).

Error when going to view at "http://localhost:3000/graph2/edit" is
   undefined method `calc_type'' for Line(Table doesn''t
exist):Class

Thanks in advance - details below:


-----controller------
class Graph2Controller < ApplicationController

  def edit
    # Default parameters for form
    @graph_options = GraphOptions.new
    @graph_options.start_date = Time.now.to_date - 3.months
    @graph_options.end_date = Time.now.to_date + 3.months
    @graph_options.granularity = 1
    @graph_options.lines.build
    @graph_options.lines[0].calc_type = "manual calc"

  end

  def save
    @graph_options = GraphOptions.new(params[:graph_options])
    render :action => "edit" if !@graph_options.valid?
  end

end

-------- model ------
class GraphOptions < ActiveRecord::BaseWithoutTable
  column :label_title, :string
  column :start_date, :date
  column :end_date,   :date
  column :granularity, :integer

  has_many :lines

  validates_presence_of :label_title
  validates_numericality_of :granularity
  validates_associated :lines


  def validate
    errors.add(''start_date'', ''is not in Date
format'') if
!start_date.kind_of?(Date)
    errors.add(''end_date'', ''is not in Date
format'') if !end_date.kind_of?(Date)
  end

end

class Line < ActiveRecord::BaseWithoutTable
  column :calc_type, :string
  validates_presence_of :calc_type
end

----- view  -------
<h1>Graph Options Selection</h1>

<% form_for :graph_options, :url => {:action =>
''save''} do |f| %>
    <%= f.error_messages %>
  <table>
    <tr><td>Graph Title: </td><td><%= f.text_field
:label_title %></td></tr>
    <tr><td>Start Date: </td><td><%=
f.calendar_date_select
:start_date %></td></tr>
    <tr><td>End Date: </td><td><%=
f.calendar_date_select :end_date %></td></tr>
    <tr><td>Granularity (days): </td><td><%=
f.text_field :granularity
%></td></tr>
  </table>

  <% fields_for "graph_options[lines][]", @graph_options.lines do
|fields| %>
    Calculation Type: <%= fields.text_field ''calc_type''
%>
 # <=== ERROR IS HERE
  <% end %>


  <%= submit_tag ''Create Graph'' %>

<% end %>


-------Error----------
 NoMethodError in Graph2#edit

Showing graph2/edit.html.erb where line #13 raised:

undefined method `calc_type'' for Line(Table doesn''t
exist):Class

Extracted source (around line #13):

10:   </table>
11:
12:   <% fields_for "graph_options[lines][]", @graph_options.lines
do
|fields| %>
13:     Calculation Type: <%= fields.text_field ''calc_type''
%>
14:   <% end %>
15:
16:

RAILS_ROOT: /Users/greg/source/myequity
Application Trace | Framework Trace | Full Trace

/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
`to_input_field_tag''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
`text_field''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`text_field''
app/views/graph2/edit.html.erb:13:in
`_run_erb_47app47views47graph247edit46html46erb''
app/views/graph2/edit.html.erb:12:in
`_run_erb_47app47views47graph247edit46html46erb''
app/views/graph2/edit.html.erb:3:in
`_run_erb_47app47views47graph247edit46html46erb''
/opt/local/bin/rdebug-ide:19:in `load''
/opt/local/bin/rdebug-ide:19

/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
`to_input_field_tag''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
`text_field''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`text_field''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
`fields_for''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
`fields_for''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:253:in
`form_for''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
`execute''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:35:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:22:in
`render_template''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:248:in
`render_file''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1112:in
`render_for_file''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:845:in
`render_with_no_layout''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/layout.rb:251:in
`render_without_benchmark''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
`render_without_active_scaffold''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/core_ext/benchmark.rb:8:in
`realtime''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
`render_without_active_scaffold''
vendor/plugins/active_scaffold/lib/extensions/action_controller_rendering.rb:13:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1161:in
`default_render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1167:in
`perform_action_without_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:579:in
`call_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:572:in
`perform_action_without_benchmark''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue''
/opt/local/lib/ruby/1.8/benchmark.rb:293:in `measure''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/rescue.rb:201:in
`perform_action_without_caching''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:13:in
`perform_action''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
`cache''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/query_cache.rb:8:in
`cache''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:12:in
`perform_action''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
`process_without_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:568:in
`process_without_session_management_support''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/session_management.rb:130:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:389:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:149:in
`handle_request''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:107:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
`synchronize''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:120:in
`dispatch_cgi''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:35:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:76:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
`synchronize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:159:in
`process_client''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`process_client''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`initialize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`new''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`initialize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`new''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:282:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:128:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/command.rb:212:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:281
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
`new_constants_in''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/servers/mongrel.rb:64
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require''
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
`new_constants_in''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/server.rb:39
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require''
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
script/server:3
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
`debug_load''
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
`main''
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/bin/rdebug-ide:76

/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
`with_scope''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
`method_missing''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
`value_before_type_cast''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
`to_input_field_tag''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
`text_field''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
`text_field''
app/views/graph2/edit.html.erb:13:in
`_run_erb_47app47views47graph247edit46html46erb''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
`fields_for''
app/views/graph2/edit.html.erb:12:in
`_run_erb_47app47views47graph247edit46html46erb''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
`fields_for''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:253:in
`form_for''
app/views/graph2/edit.html.erb:3:in
`_run_erb_47app47views47graph247edit46html46erb''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
`execute''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:35:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:22:in
`render_template''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:248:in
`render_file''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1112:in
`render_for_file''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:845:in
`render_with_no_layout''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/layout.rb:251:in
`render_without_benchmark''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
`render_without_active_scaffold''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/core_ext/benchmark.rb:8:in
`realtime''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
`render_without_active_scaffold''
vendor/plugins/active_scaffold/lib/extensions/action_controller_rendering.rb:13:in
`render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1161:in
`default_render''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1167:in
`perform_action_without_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:579:in
`call_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:572:in
`perform_action_without_benchmark''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue''
/opt/local/lib/ruby/1.8/benchmark.rb:293:in `measure''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/rescue.rb:201:in
`perform_action_without_caching''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:13:in
`perform_action''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
`cache''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/query_cache.rb:8:in
`cache''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:12:in
`perform_action''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
`process_without_filters''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:568:in
`process_without_session_management_support''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/session_management.rb:130:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:389:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:149:in
`handle_request''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:107:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
`synchronize''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:120:in
`dispatch_cgi''
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:35:in
`dispatch''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:76:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
`synchronize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
`process''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:159:in
`process_client''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`process_client''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`initialize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`new''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`initialize''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`new''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:282:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:128:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/command.rb:212:in
`run''
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:281
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
`new_constants_in''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
`load''
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/servers/mongrel.rb:64
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require''
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
`new_constants_in''
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
`require''
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/server.rb:39
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require''
/opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
script/server:3
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
`debug_load''
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
`main''
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/bin/rdebug-ide:76
/opt/local/bin/rdebug-ide:19:in `load''
/opt/local/bin/rdebug-ide:19

Request

Parameters:

None

Show session dump

---
:csrf_id: e40b12ec5ff840a756d4a271e5250ca9
as:category:
  :list: {}

flash: !map:ActionController::Flash::FlashHash {}


Response

Headers:

{"cookie"=>[],
 "Cache-Control"=>"no-cache"}

--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---

Greg Hauptmann

2008-Nov-22 11:56 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

ok, re "I''m just trying to load a set of options which
doesn''t require
tables (i.e. using tableless plugin)" I''ve got the View working
now,
however when I submit back I have an error as Rails tries to populate
the association models.   Any ideas - it''s like the parameter
array/hash structure coming into Rails is fine, however when it tries
to load the association data into the model for the associations it
has a problem.

Is my model (graph_options.rb) correct?   Do I need to specify a
specific "attr_accessible :lines" here?  Or should the "has_many
:lines" be enough?

------------- ERROR -----------
 ActiveRecord::AssociationTypeMismatch in Graph2Controller#save

Line(#19260340) expected, got HashWithIndifferentAccess(#9296710)

RAILS_ROOT: /Users/greg/source/myequity
Application Trace | Framework Trace | Full Trace

/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:210:in
`raise_on_type_mismatch''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:232:in
`replace''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:232:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:232:in
`replace''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations.rb:1156:in
`lines=''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:2372:in
`send''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:2372:in
`attributes=''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:2371:in
`each''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:2371:in
`attributes=''
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:2141:in
`initialize''
app/controllers/graph2_controller.rb:22:in `new''
app/controllers/graph2_controller.rb:22:in `save''
/opt/local/bin/rdebug-ide:19:in `load''
/opt/local/bin/rdebug-ide:19


Request
Parameters:

{"commit"=>"Create Graph",
 "authenticity_token"=>"78f0a9ff834dbf09d2ea788e5174649cbc933bf9",
 "graph_options"=>{"start_date"=>"August 22,
 2008",
 "end_date"=>"Februar y 22,
 2009",
 "label_title"=>"asdf",
 "lines"=>[{"foo"=>"November 22,
 2008",
 "calc_type"=>"manual calc"},
 {"foo"=>"November 22,
 2008",
 "calc_type"=>"manual calc"}],
 "granularity"=>"1",
 "chart_type"=>"1"}}

----- VIEW ----------
<h1>Graph Options Selection</h1>

<% form_for :graph_options, :url => {:action =>
''save''} do |f| %>
  <%= f.error_messages %>
  <table>
    <tr><td>Graph Title: </td><td><%= f.text_field
:label_title %></td></tr>
    <tr><td>Start Date: </td><td><%=
f.calendar_date_select
:start_date %></td></tr>
    <tr><td>End Date: </td><td><%=
f.calendar_date_select :end_date %></td></tr>
    <tr><td>Granularity (days): </td><td><%=
f.text_field :granularity
%></td></tr>
    <tr><td>Chart Type: </td><td><%= f.text_field
:chart_type %></td></tr>

    <% @graph_options.lines.each do |line|  %>
      <tr>
        <% fields_for "graph_options[lines][]",
@graph_options.lines[0] do |fields| %>
          <td> Calculation Type: <%= fields.text_field
''calc_type'' %> </td>
          <td> Calculation Type: <%= fields.calendar_date_select
''foo'' %> </td>
        <% end %>
      </tr>
    <% end %>

  </table>

  <%= submit_tag ''Create Graph'' %>

<% end %>

------ CONTROLLER -------
class Graph2Controller < ApplicationController

  def edit
    # Default parameters for form
    @graph_options = GraphOptions.new
    @graph_options.start_date = Time.now.to_date - 3.months
    @graph_options.end_date = Time.now.to_date + 3.months
    @graph_options.granularity = 1
    @graph_options.lines.build
    @graph_options.lines.build

    # Testing ONly
    @graph_options.chart_type = 1
    @graph_options.lines[0].calc_type = "manual calc"
    @graph_options.lines[1].calc_type = "auto calc"
    @graph_options.lines[0].foo = Time.now.to_date
    @graph_options.lines[1].foo = Time.now.to_date

  end

  def save
    @graph_options = GraphOptions.new(params[:graph_options])
    render :action => "edit" if !@graph_options.valid?
  end

end

----------MODEL----------

class GraphOptions < ActiveRecord::BaseWithoutTable
  column :label_title, :string
  column :start_date, :date
  column :end_date,   :date
  column :granularity, :integer
  column :chart_type, :integer

  #attr_accessible :lines

  has_many :lines

  validates_presence_of :label_title
  validates_numericality_of :granularity, :chart_type
  validates_associated :lines


  def validate
    errors.add(''start_date'', ''is not in Date
format'') if
!start_date.kind_of?(Date)
    errors.add(''end_date'', ''is not in Date
format'') if !end_date.kind_of?(Date)
  end

end

class Line < ActiveRecord::BaseWithoutTable
#  attr_accessible :calc_type
  column :calc_type, :string
  column :foo, :date
  validates_presence_of :calc_type
end











On Sat, Nov 22, 2008 at 3:35 PM, Greg Hauptmann
<greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Hi,
>
> I''m just trying to load a set of options which doesn''t
require tables
> (i.e. using tableless plugin).
>
> Error when going to view at "http://localhost:3000/graph2/edit"
is
>   undefined method `calc_type'' for Line(Table doesn''t
exist):Class
>
> Thanks in advance - details below:
>
>
> -----controller------
> class Graph2Controller < ApplicationController
>
>  def edit
>    # Default parameters for form
>    @graph_options = GraphOptions.new
>    @graph_options.start_date = Time.now.to_date - 3.months
>    @graph_options.end_date = Time.now.to_date + 3.months
>    @graph_options.granularity = 1
>    @graph_options.lines.build
>    @graph_options.lines[0].calc_type = "manual calc"
>
>  end
>
>  def save
>    @graph_options = GraphOptions.new(params[:graph_options])
>    render :action => "edit" if !@graph_options.valid?
>  end
>
> end
>
> -------- model ------
> class GraphOptions < ActiveRecord::BaseWithoutTable
>  column :label_title, :string
>  column :start_date, :date
>  column :end_date,   :date
>  column :granularity, :integer
>
>  has_many :lines
>
>  validates_presence_of :label_title
>  validates_numericality_of :granularity
>  validates_associated :lines
>
>
>  def validate
>    errors.add(''start_date'', ''is not in Date
format'') if
> !start_date.kind_of?(Date)
>    errors.add(''end_date'', ''is not in Date
format'') if !end_date.kind_of?(Date)
>  end
>
> end
>
> class Line < ActiveRecord::BaseWithoutTable
>  column :calc_type, :string
>  validates_presence_of :calc_type
> end
>
> ----- view  -------
> <h1>Graph Options Selection</h1>
>
> <% form_for :graph_options, :url => {:action =>
''save''} do |f| %>
>    <%= f.error_messages %>
>  <table>
>    <tr><td>Graph Title: </td><td><%=
f.text_field :label_title %></td></tr>
>    <tr><td>Start Date: </td><td><%=
f.calendar_date_select
> :start_date %></td></tr>
>    <tr><td>End Date: </td><td><%=
f.calendar_date_select :end_date %></td></tr>
>    <tr><td>Granularity (days): </td><td><%=
f.text_field :granularity
> %></td></tr>
>  </table>
>
>  <% fields_for "graph_options[lines][]", @graph_options.lines
do |fields| %>
>    Calculation Type: <%= fields.text_field ''calc_type''
%>
>  # <=== ERROR IS HERE
>  <% end %>
>
>
>  <%= submit_tag ''Create Graph'' %>
>
> <% end %>
>
>
> -------Error----------
>  NoMethodError in Graph2#edit
>
> Showing graph2/edit.html.erb where line #13 raised:
>
> undefined method `calc_type'' for Line(Table doesn''t
exist):Class
>
> Extracted source (around line #13):
>
> 10:   </table>
> 11:
> 12:   <% fields_for "graph_options[lines][]",
@graph_options.lines do
> |fields| %>
> 13:     Calculation Type: <%= fields.text_field
''calc_type'' %>
> 14:   <% end %>
> 15:
> 16:
>
> RAILS_ROOT: /Users/greg/source/myequity
> Application Trace | Framework Trace | Full Trace
>
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
> `to_input_field_tag''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
> `text_field''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `text_field''
> app/views/graph2/edit.html.erb:13:in
> `_run_erb_47app47views47graph247edit46html46erb''
> app/views/graph2/edit.html.erb:12:in
> `_run_erb_47app47views47graph247edit46html46erb''
> app/views/graph2/edit.html.erb:3:in
> `_run_erb_47app47views47graph247edit46html46erb''
> /opt/local/bin/rdebug-ide:19:in `load''
> /opt/local/bin/rdebug-ide:19
>
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
> `to_input_field_tag''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
> `text_field''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `text_field''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
> `fields_for''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
> `fields_for''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:253:in
> `form_for''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
> `execute''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:35:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:22:in
> `render_template''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:248:in
> `render_file''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1112:in
> `render_for_file''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:845:in
> `render_with_no_layout''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/layout.rb:251:in
> `render_without_benchmark''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
> `render_without_active_scaffold''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/core_ext/benchmark.rb:8:in
> `realtime''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
> `render_without_active_scaffold''
>
vendor/plugins/active_scaffold/lib/extensions/action_controller_rendering.rb:13:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1161:in
> `default_render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1167:in
> `perform_action_without_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:579:in
> `call_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:572:in
> `perform_action_without_benchmark''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue''
> /opt/local/lib/ruby/1.8/benchmark.rb:293:in `measure''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/rescue.rb:201:in
> `perform_action_without_caching''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:13:in
> `perform_action''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
> `cache''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/query_cache.rb:8:in
> `cache''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:12:in
> `perform_action''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
> `process_without_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:568:in
> `process_without_session_management_support''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/session_management.rb:130:in
> `process''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:389:in
> `process''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:149:in
> `handle_request''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:107:in
> `dispatch''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
> `synchronize''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
> `dispatch''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:120:in
> `dispatch_cgi''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:35:in
> `dispatch''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:76:in
> `process''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
> `synchronize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
> `process''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:159:in
> `process_client''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`each''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
> `process_client''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
> `initialize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`new''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
> `initialize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`new''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:282:in
> `run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
> `each''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
> `run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:128:in
`run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/command.rb:212:in
> `run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:281
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
> `new_constants_in''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/servers/mongrel.rb:64
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require''
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
> `require''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
> `new_constants_in''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
> `require''
> /opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/server.rb:39
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require''
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
> script/server:3
>
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
> `debug_load''
>
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
> `main''
> /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/bin/rdebug-ide:76
>
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1672:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:288:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:1857:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_proxy.rb:164:in
> `with_scope''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/associations/association_collection.rb:284:in
> `method_missing''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:628:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:616:in
> `value_before_type_cast''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:535:in
> `to_input_field_tag''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:358:in
> `text_field''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:713:in
> `text_field''
> app/views/graph2/edit.html.erb:13:in
> `_run_erb_47app47views47graph247edit46html46erb''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
> `fields_for''
> app/views/graph2/edit.html.erb:12:in
> `_run_erb_47app47views47graph247edit46html46erb''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:317:in
> `fields_for''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/helpers/form_helper.rb:253:in
> `form_for''
> app/views/graph2/edit.html.erb:3:in
> `_run_erb_47app47views47graph247edit46html46erb''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:342:in
> `execute''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template_handlers/compilable.rb:29:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:35:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/template.rb:22:in
> `render_template''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_view/base.rb:248:in
> `render_file''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1112:in
> `render_for_file''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:845:in
> `render_with_no_layout''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/layout.rb:251:in
> `render_without_benchmark''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
> `render_without_active_scaffold''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/core_ext/benchmark.rb:8:in
> `realtime''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:51:in
> `render_without_active_scaffold''
>
vendor/plugins/active_scaffold/lib/extensions/action_controller_rendering.rb:13:in
> `render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1161:in
> `default_render''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:1167:in
> `perform_action_without_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:579:in
> `call_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:572:in
> `perform_action_without_benchmark''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue''
> /opt/local/lib/ruby/1.8/benchmark.rb:293:in `measure''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/rescue.rb:201:in
> `perform_action_without_caching''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:13:in
> `perform_action''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
> `cache''
>
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/query_cache.rb:8:in
> `cache''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/sql_cache.rb:12:in
> `perform_action''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
> `send''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:529:in
> `process_without_filters''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/filters.rb:568:in
> `process_without_session_management_support''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/session_management.rb:130:in
> `process''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/base.rb:389:in
> `process''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:149:in
> `handle_request''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:107:in
> `dispatch''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
> `synchronize''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
> `dispatch''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:120:in
> `dispatch_cgi''
>
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:35:in
> `dispatch''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:76:in
> `process''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
> `synchronize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:74:in
> `process''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:159:in
> `process_client''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
`each''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:158:in
> `process_client''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
> `initialize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`new''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:285:in
`run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
> `initialize''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`new''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:268:in
`run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:282:in
> `run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
> `each''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:281:in
> `run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:128:in
`run''
>
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/command.rb:212:in
> `run''
> /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails:281
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
> `new_constants_in''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:503:in
> `load''
>
/opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/servers/mongrel.rb:64
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require''
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
> `require''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in
> `new_constants_in''
>
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in
> `require''
> /opt/local/lib/ruby/gems/1.8/gems/rails-2.1.1/lib/commands/server.rb:39
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require''
> /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
> script/server:3
>
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
> `debug_load''
>
/opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/lib/ruby-debug.rb:96:in
> `main''
> /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.3.1/bin/rdebug-ide:76
> /opt/local/bin/rdebug-ide:19:in `load''
> /opt/local/bin/rdebug-ide:19
>
> Request
>
> Parameters:
>
> None
>
> Show session dump
>
> ---
> :csrf_id: e40b12ec5ff840a756d4a271e5250ca9
> as:category:
>  :list: {}
>
> flash: !map:ActionController::Flash::FlashHash {}
>
>
> Response
>
> Headers:
>
> {"cookie"=>[],
>  "Cache-Control"=>"no-cache"}
>
--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Nov-22 15:00 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

On Nov 22, 11:56 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> ok, re "I''m just trying to load a set of options which
doesn''t require
> tables (i.e. using tableless plugin)" I''ve got the View
working now,
> however when I submit back I have an error as Rails tries to populate
> the association models.   Any ideas - it''s like the parameter
> array/hash structure coming into Rails is fine, however when it tries
> to load the association data into the model for the associations it
> has a problem.
>
> Is my model (graph_options.rb) correct?   Do I need to specify a
> specific "attr_accessible :lines" here?  Or should the
"has_many
> :lines" be enough?
attr_accessible is something completely different. The issue here is
that all update_attributes does is for each key value pair it calls
your_model.send("#{key}=", value). That''s fine for
attributes, but
that means that what it''s passing to lines= is not an array of Line
items, but an array of hashes.
In rails 2.1 you just have to extract that array of hashes, turn it
into objects of the right type and then assign it to
your_object.lines. There was talk of changing this in rails 2.2 but I
can''t remember what was done about it in the end.

Fred


--~--~---------~--~----~------------~-------~--~----~
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"Ruby on Rails: Talk" group.
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Greg Hauptmann

2008-Nov-22 23:50 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

thanks for responding Frederick:  So just to clarify you mean:

(a) I would have to do this in my controller in the "save" method
right?
(b) so anyone that anyone using Rails that has nested models in their
views do have to do this too then?  i.e. extract work in the
controller?  i.e. there''s no ability in Rails 2.1 with nested models
to have the params perfectly auto-populated the models (i.e. parent
model and it''s association models) out-of-the-box?

thanks again



On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
<frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
>
> On Nov 22, 11:56 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> ok, re "I''m just trying to load a set of options which
doesn''t require
>> tables (i.e. using tableless plugin)" I''ve got the View
working now,
>> however when I submit back I have an error as Rails tries to populate
>> the association models.   Any ideas - it''s like the parameter
>> array/hash structure coming into Rails is fine, however when it tries
>> to load the association data into the model for the associations it
>> has a problem.
>>
>> Is my model (graph_options.rb) correct?   Do I need to specify a
>> specific "attr_accessible :lines" here?  Or should the
"has_many
>> :lines" be enough?
>
> attr_accessible is something completely different. The issue here is
> that all update_attributes does is for each key value pair it calls
> your_model.send("#{key}=", value). That''s fine for
attributes, but
> that means that what it''s passing to lines= is not an array of
Line
> items, but an array of hashes.
> In rails 2.1 you just have to extract that array of hashes, turn it
> into objects of the right type and then assign it to
> your_object.lines. There was talk of changing this in rails 2.2 but I
> can''t remember what was done about it in the end.
>
> Fred
>
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
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Greg Hauptmann

2008-Nov-23 07:21 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

PS.  Actually I''ve just seen in this RailsCasts episode that Ryan
seems to have a nested model controller that does translate the parent
& child model data from the form to parent model and its association
(child model).  Am I missing something Frederick re whether you may
have been wrong here?

   Link = http://railscasts.com/episodes/73-complex-forms-part-1

On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann
<greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> thanks for responding Frederick:  So just to clarify you mean:
>
> (a) I would have to do this in my controller in the "save" method
right?
> (b) so anyone that anyone using Rails that has nested models in their
> views do have to do this too then?  i.e. extract work in the
> controller?  i.e. there''s no ability in Rails 2.1 with nested
models
> to have the params perfectly auto-populated the models (i.e. parent
> model and it''s association models) out-of-the-box?
>
> thanks again
>
>
>
> On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
> <frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>>
>>
>> On Nov 22, 11:56 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> wrote:
>>> ok, re "I''m just trying to load a set of options
which doesn''t require
>>> tables (i.e. using tableless plugin)" I''ve got the
View working now,
>>> however when I submit back I have an error as Rails tries to
populate
>>> the association models.   Any ideas - it''s like the
parameter
>>> array/hash structure coming into Rails is fine, however when it
tries
>>> to load the association data into the model for the associations it
>>> has a problem.
>>>
>>> Is my model (graph_options.rb) correct?   Do I need to specify a
>>> specific "attr_accessible :lines" here?  Or should the
"has_many
>>> :lines" be enough?
>>
>> attr_accessible is something completely different. The issue here is
>> that all update_attributes does is for each key value pair it calls
>> your_model.send("#{key}=", value). That''s fine for
attributes, but
>> that means that what it''s passing to lines= is not an array of
Line
>> items, but an array of hashes.
>> In rails 2.1 you just have to extract that array of hashes, turn it
>> into objects of the right type and then assign it to
>> your_object.lines. There was talk of changing this in rails 2.2 but I
>> can''t remember what was done about it in the end.
>>
>> Fred
>>
>>
>> >>
>>
>
--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Nov-23 10:57 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

On Nov 23, 7:21 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> PS.  Actually I''ve just seen in this RailsCasts episode that Ryan
> seems to have a nested model controller that does translate the parent
> & child model data from the form to parent model and its association
> (child model).  Am I missing something Frederick re whether you may
> have been wrong here?
>
>    Link =http://railscasts.com/episodes/73-complex-forms-part-1
>That''s one way of doing it, another is doing it in the controller (in
your update & create methods as you suggested). But there isn''t
anything built in, if you look at Ryan''s code he''s added a
magic
accessor to his project model that massages an array of hashes into an
array of task objects. You do need to  write that code and it has to
go somewhere.

Fred


> On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann
>
> <greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > thanks for responding Frederick:  So just to clarify you mean:
>
> > (a) I would have to do this in my controller in the "save"
method right?
> > (b) so anyone that anyone using Rails that has nested models in their
> > views do have to do this too then?  i.e. extract work in the
> > controller?  i.e. there''s no ability in Rails 2.1 with nested
models
> > to have the params perfectly auto-populated the models (i.e. parent
> > model and it''s association models) out-of-the-box?
>
> > thanks again
>
> > On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
> > <frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> >> On Nov 22, 11:56 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> >> wrote:
> >>> ok, re "I''m just trying to load a set of options
which doesn''t require
> >>> tables (i.e. using tableless plugin)" I''ve got
the View working now,
> >>> however when I submit back I have an error as Rails tries to
populate
> >>> the association models.   Any ideas - it''s like the
parameter
> >>> array/hash structure coming into Rails is fine, however when
it tries
> >>> to load the association data into the model for the
associations it
> >>> has a problem.
>
> >>> Is my model (graph_options.rb) correct?   Do I need to specify
a
> >>> specific "attr_accessible :lines" here?  Or should
the "has_many
> >>> :lines" be enough?
>
> >> attr_accessible is something completely different. The issue here
is
> >> that all update_attributes does is for each key value pair it
calls
> >> your_model.send("#{key}=", value). That''s fine
for attributes, but
> >> that means that what it''s passing to lines= is not an
array of Line
> >> items, but an array of hashes.
> >> In rails 2.1 you just have to extract that array of hashes, turn
it
> >> into objects of the right type and then assign it to
> >> your_object.lines. There was talk of changing this in rails 2.2
but I
> >> can''t remember what was done about it in the end.
>
> >> Fred--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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-~----------~----~----~----~------~----~------~--~---

Greg Hauptmann

2008-Nov-23 12:38 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

oh, got it Frederick,

To be more self sufficient, how would I be able to confirm for myself
exactly what the Rails controller framework is looking for when it''s
trying to create models out of the param''s it gets (i.e. behind the
scenes before it gets to your code)?

If I had a way of confirming this then I could cement my understanding
of why Ryan''s extra method made the difference (as an example).

Do you have to pretty much look at Rails code to have derived this
understanding?   Like it''s not even clear to me which rails tool is
being used to recursively build the models out of the params, as it
must get called in the rails code.  Hope this makes sense.

Thanks again


On Sun, Nov 23, 2008 at 8:57 PM, Frederick Cheung
<frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
>
> On Nov 23, 7:21 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> PS.  Actually I''ve just seen in this RailsCasts episode that
Ryan
>> seems to have a nested model controller that does translate the parent
>> & child model data from the form to parent model and its
association
>> (child model).  Am I missing something Frederick re whether you may
>> have been wrong here?
>>
>>    Link =http://railscasts.com/episodes/73-complex-forms-part-1
>>
> That''s one way of doing it, another is doing it in the controller
(in
> your update & create methods as you suggested). But there
isn''t
> anything built in, if you look at Ryan''s code he''s added
a magic
> accessor to his project model that massages an array of hashes into an
> array of task objects. You do need to  write that code and it has to
> go somewhere.
>
> Fred
>
>
>
>> On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann
>>
>> <greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>> > thanks for responding Frederick:  So just to clarify you mean:
>>
>> > (a) I would have to do this in my controller in the
"save" method right?
>> > (b) so anyone that anyone using Rails that has nested models in
their
>> > views do have to do this too then?  i.e. extract work in the
>> > controller?  i.e. there''s no ability in Rails 2.1 with
nested models
>> > to have the params perfectly auto-populated the models (i.e.
parent
>> > model and it''s association models) out-of-the-box?
>>
>> > thanks again
>>
>> > On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
>> > <frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>>
>> >> On Nov 22, 11:56 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> >> wrote:
>> >>> ok, re "I''m just trying to load a set of
options which doesn''t require
>> >>> tables (i.e. using tableless plugin)" I''ve
got the View working now,
>> >>> however when I submit back I have an error as Rails tries
to populate
>> >>> the association models.   Any ideas - it''s like
the parameter
>> >>> array/hash structure coming into Rails is fine, however
when it tries
>> >>> to load the association data into the model for the
associations it
>> >>> has a problem.
>>
>> >>> Is my model (graph_options.rb) correct?   Do I need to
specify a
>> >>> specific "attr_accessible :lines" here?  Or
should the "has_many
>> >>> :lines" be enough?
>>
>> >> attr_accessible is something completely different. The issue
here is
>> >> that all update_attributes does is for each key value pair it
calls
>> >> your_model.send("#{key}=", value). That''s
fine for attributes, but
>> >> that means that what it''s passing to lines= is not an
array of Line
>> >> items, but an array of hashes.
>> >> In rails 2.1 you just have to extract that array of hashes,
turn it
>> >> into objects of the right type and then assign it to
>> >> your_object.lines. There was talk of changing this in rails
2.2 but I
>> >> can''t remember what was done about it in the end.
>>
>> >> Fred
> >
>
--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Nov-23 12:50 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

Sent from my iPhone

On 23 Nov 2008, at 12:38, "Greg Hauptmann"
<greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
 > wrote:
>
> oh, got it Frederick,
>
> To be more self sufficient, how would I be able to confirm for myself
> exactly what the Rails controller framework is looking for when
it''s
> trying to create models out of the param''s it gets (i.e. behind
the
> scenes before it gets to your code)?
>Look at the code for update_attributes in activerecord

Fred> If I had a way of confirming this then I could cement my understanding
> of why Ryan''s extra method made the difference (as an example).
>
> Do you have to pretty much look at Rails code to have derived this
> understanding?   Like it''s not even clear to me which rails tool
is
> being used to recursively build the models out of the params, as it
> must get called in the rails code.  Hope this makes sense.
>
> Thanks again
>
>
> On Sun, Nov 23, 2008 at 8:57 PM, Frederick Cheung
> <frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>>
>>
>> On Nov 23, 7:21 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> wrote:
>>> PS.  Actually I''ve just seen in this RailsCasts episode
that Ryan
>>> seems to have a nested model controller that does translate the  
>>> parent
>>> & child model data from the form to parent model and its
association
>>> (child model).  Am I missing something Frederick re whether you may
>>> have been wrong here?
>>>
>>>   Link =http://railscasts.com/episodes/73-complex-forms-part-1
>>>
>> That''s one way of doing it, another is doing it in the
controller (in
>> your update & create methods as you suggested). But there
isn''t
>> anything built in, if you look at Ryan''s code he''s
added a magic
>> accessor to his project model that massages an array of hashes into  
>> an
>> array of task objects. You do need to  write that code and it has to
>> go somewhere.
>>
>> Fred
>>
>>
>>
>>> On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann
>>>
>>> <greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>>>> thanks for responding Frederick:  So just to clarify you mean:
>>>
>>>> (a) I would have to do this in my controller in the
"save" method
>>>> right?
>>>> (b) so anyone that anyone using Rails that has nested models in
>>>> their
>>>> views do have to do this too then?  i.e. extract work in the
>>>> controller?  i.e. there''s no ability in Rails 2.1 with
nested
>>>> models
>>>> to have the params perfectly auto-populated the models (i.e.
parent
>>>> model and it''s association models) out-of-the-box?
>>>
>>>> thanks again
>>>
>>>> On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
>>>>
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>
>>>>> On Nov 22, 11:56 am, "Greg Hauptmann"  
>>>>>
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>>>> wrote:
>>>>>> ok, re "I''m just trying to load a set of
options which doesn''t
>>>>>> require
>>>>>> tables (i.e. using tableless plugin)"
I''ve got the View working
>>>>>> now,
>>>>>> however when I submit back I have an error as Rails
tries to
>>>>>> populate
>>>>>> the association models.   Any ideas - it''s
like the parameter
>>>>>> array/hash structure coming into Rails is fine, however
when it
>>>>>> tries
>>>>>> to load the association data into the model for the  
>>>>>> associations it
>>>>>> has a problem.
>>>
>>>>>> Is my model (graph_options.rb) correct?   Do I need to
specify a
>>>>>> specific "attr_accessible :lines" here?  Or
should the "has_many
>>>>>> :lines" be enough?
>>>
>>>>> attr_accessible is something completely different. The
issue
>>>>> here is
>>>>> that all update_attributes does is for each key value pair
it
>>>>> calls
>>>>> your_model.send("#{key}=", value).
That''s fine for attributes, but
>>>>> that means that what it''s passing to lines= is not
an array of
>>>>> Line
>>>>> items, but an array of hashes.
>>>>> In rails 2.1 you just have to extract that array of hashes,
turn
>>>>> it
>>>>> into objects of the right type and then assign it to
>>>>> your_object.lines. There was talk of changing this in rails
2.2
>>>>> but I
>>>>> can''t remember what was done about it in the end.
>>>
>>>>> Fred
>>>
>>
>
> >
--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---

Greg Hauptmann

2008-Nov-23 21:14 UTC

head link

Re: what''s wrong with this code? (hitting my head against a wall)

thanks - got the auto-creation of nested models working!

Now I seem to be on the next challenge of getting decent validation
error messages show on the view with the nested models :)   Seems to
be somewhat discussed at
http://railscasts.com/episodes/75-complex-forms-part-3 but doesn''t
seem to have a perfect solution.  Will keep digging.  If someone knows
of the latest/nicest way to nicely get detailed validation messages
appearing where it makes sense for a view with nested models I''d be
very interested  :)

thanks


On Sun, Nov 23, 2008 at 10:50 PM, Frederick Cheung
<frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
>
> Sent from my iPhone
>
> On 23 Nov 2008, at 12:38, "Greg Hauptmann"
<greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
>  > wrote:
>
>>
>> oh, got it Frederick,
>>
>> To be more self sufficient, how would I be able to confirm for myself
>> exactly what the Rails controller framework is looking for when
it''s
>> trying to create models out of the param''s it gets (i.e.
behind the
>> scenes before it gets to your code)?
>>
> Look at the code for update_attributes in activerecord
>
> Fred
>> If I had a way of confirming this then I could cement my understanding
>> of why Ryan''s extra method made the difference (as an
example).
>>
>> Do you have to pretty much look at Rails code to have derived this
>> understanding?   Like it''s not even clear to me which rails
tool is
>> being used to recursively build the models out of the params, as it
>> must get called in the rails code.  Hope this makes sense.
>>
>> Thanks again
>>
>>
>> On Sun, Nov 23, 2008 at 8:57 PM, Frederick Cheung
>> <frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>
>>>
>>>
>>> On Nov 23, 7:21 am, "Greg Hauptmann"
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>> wrote:
>>>> PS.  Actually I''ve just seen in this RailsCasts
episode that Ryan
>>>> seems to have a nested model controller that does translate the
>>>> parent
>>>> & child model data from the form to parent model and its
association
>>>> (child model).  Am I missing something Frederick re whether you
may
>>>> have been wrong here?
>>>>
>>>>   Link =http://railscasts.com/episodes/73-complex-forms-part-1
>>>>
>>> That''s one way of doing it, another is doing it in the
controller (in
>>> your update & create methods as you suggested). But there
isn''t
>>> anything built in, if you look at Ryan''s code
he''s added a magic
>>> accessor to his project model that massages an array of hashes into
>>> an
>>> array of task objects. You do need to  write that code and it has
to
>>> go somewhere.
>>>
>>> Fred
>>>
>>>
>>>
>>>> On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann
>>>>
>>>>
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>>> thanks for responding Frederick:  So just to clarify you
mean:
>>>>
>>>>> (a) I would have to do this in my controller in the
"save" method
>>>>> right?
>>>>> (b) so anyone that anyone using Rails that has nested
models in
>>>>> their
>>>>> views do have to do this too then?  i.e. extract work in
the
>>>>> controller?  i.e. there''s no ability in Rails 2.1
with nested
>>>>> models
>>>>> to have the params perfectly auto-populated the models
(i.e. parent
>>>>> model and it''s association models) out-of-the-box?
>>>>
>>>>> thanks again
>>>>
>>>>> On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung
>>>>>
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>>
>>>>>> On Nov 22, 11:56 am, "Greg Hauptmann"
>>>>>>
<greg.hauptmann.r...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>>>>> wrote:
>>>>>>> ok, re "I''m just trying to load a set
of options which doesn''t
>>>>>>> require
>>>>>>> tables (i.e. using tableless plugin)"
I''ve got the View working
>>>>>>> now,
>>>>>>> however when I submit back I have an error as Rails
tries to
>>>>>>> populate
>>>>>>> the association models.   Any ideas - it''s
like the parameter
>>>>>>> array/hash structure coming into Rails is fine,
however when it
>>>>>>> tries
>>>>>>> to load the association data into the model for the
>>>>>>> associations it
>>>>>>> has a problem.
>>>>
>>>>>>> Is my model (graph_options.rb) correct?   Do I need
to specify a
>>>>>>> specific "attr_accessible :lines" here? 
Or should the "has_many
>>>>>>> :lines" be enough?
>>>>
>>>>>> attr_accessible is something completely different. The
issue
>>>>>> here is
>>>>>> that all update_attributes does is for each key value
pair it
>>>>>> calls
>>>>>> your_model.send("#{key}=", value).
That''s fine for attributes, but
>>>>>> that means that what it''s passing to lines= is
not an array of
>>>>>> Line
>>>>>> items, but an array of hashes.
>>>>>> In rails 2.1 you just have to extract that array of
hashes, turn
>>>>>> it
>>>>>> into objects of the right type and then assign it to
>>>>>> your_object.lines. There was talk of changing this in
rails 2.2
>>>>>> but I
>>>>>> can''t remember what was done about it in the
end.
>>>>
>>>>>> Fred
>>>>
>>>
>>
>> >
>
> >
>
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Rails - Nov 2008 - what's wrong with this code? (hitting my head against a wall)

what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)

Re: what''s wrong with this code? (hitting my head against a wall)