On Mon, Jan 23, 2012 at 4:10 AM, Murilo Urban Monteiro <
[email protected]> wrote:

> Hello everybody...
>
> i was trying update my application from 2.3.5 (yes... i know, very
> old) to 3.2.
>
> as we know, many changes occurred during that time and i don't know if
> this ploblem is a know problem or other rule of pluralization... well
> i really don't know how to solve this.
>
> two models
>
> Class Department < ActiveRecord::Base
>  ...
>  has_many :waves
>  ...
> end
>
> Class Wave < ActiveRecord::Base
>  ...
>  belongs_to :department
>  ...
> end
>
> Department.find(x).waves
>
> explode this...
>
> uninitialized constant Department::Wafe
>
>  /Users/murilomonteiro/.rvm/gems/[email protected]/gems/
> activerecord-3.2.0/lib/active_record/inheritance.rb:119:in
> `compute_type'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/reflection.rb:172:in `klass'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/associations/association.rb:
> 117:in `klass'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/associations/association.rb:
> 165:in `find_target?'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/associations/
> collection_association.rb:332:in `load_target'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/associations/
> collection_proxy.rb:44:in `load_target'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/activerecord-3.2.0/lib/active_record/associations/
> collection_proxy.rb:88:in `method_missing'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/formatter.rb:87:in `block in
> determine_output_class'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/formatter.rb:87:in `each'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/formatter.rb:87:in `any?'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/formatter.rb:87:in `determine_output_class'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/formatter.rb:53:in `format_output'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/view.rb:204:in `render_output'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/view.rb:123:in `view_output'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/view.rb:200:in `view_or_page_output'
>    /Users/murilomonteiro/.rvm/gems/[email protected]/
> gems/hirb-0.6.0/lib/hirb/view.rb:186:in `output_value'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/
> irb.rb:160:in `block (2 levels) in eval_input'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/
> irb.rb:273:in `signal_status'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/
> irb.rb:156:in `block in eval_input'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/
> ruby-lex.rb:243:in `block (2 levels) in each_top_level_statement'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/
> ruby-lex.rb:229:in `loop'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/
> ruby-lex.rb:229:in `block in each_top_level_statement'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/
> ruby-lex.rb:228:in `catch'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/
> ruby-lex.rb:228:in `each_top_level_statement'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/
> irb.rb:155:in `eval_input'
>    /Users/murilomonteiro/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/
> irb.rb:70:in `block in start'
>
> i can find Wave.find(x).department.
>
> why of this? uninitialized constant Department::Wafe
>
> Thanks in advance for answers...
>


Root cause is probably related to:

1.9.3p0 :002 > "Waves".singularize
 => "Wafe"

Fix  that first in config/initializers/inflections.rb

When the problem persists, we can look further.

HTH,

Peter

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