rails 3, uninitialized constant Tercero::terceroclasificacion - ruby-on-rails-3

Question

i update class_name
/models/tipotercero.rb
class Tipotercero < ActiveRecord::Base
has_many :terceroclasificaciones
has_many :terceros , :class_name => "Terceroclasificacion"
end
/models/tercero.rb
class Tercero < ActiveRecord::Base
has_many :ciudades
has_many :terceroclasificaciones
has_many :tipoterceros, :class_name => "Terceroclasificacion"
end
class Terceroclasificacion < ActiveRecord::Base
belongs_to :tercero
belongs_to :tipotercero
attr_accessor :tercero_id, :tipotercero_id
end
/views/terceros/_form.html.erb
<div class="field">
<% for tipotercero in Tipotercero.all %>
<div>
<%= check_box_tag "tercero[tipotercero_ids][]", tipotercero.id, #tercero.tipoterceros.include?(tipotercero) %>
<%= tipotercero.nombre %>
</div>
<% end %>
</div>
the error is
uninitialized constant Tercero::terceroclasificacion
I have tried to follow the post
Rails 3 has_many :through Form but I could not find the error in my application
add terceros controller
/controllers/terceros_controller.rb
class TercerosController < ApplicationController
# GET /terceros
# GET /terceros.xml
def index
#terceros = Tercero.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #terceros }
end
end
# GET /terceros/1
# GET /terceros/1.xml
def show
#tercero = Tercero.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #tercero }
end
end
# GET /terceros/new
# GET /terceros/new.xml
def new
#tercero = Tercero.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => #tercero }
end
end
# GET /terceros/1/edit
def edit
#tercero = Tercero.find(params[:id])
end
# POST /terceros
# POST /terceros.xml
def create
#tercero = Tercero.new(params[:tercero])
# #tercero.attributes = {'tipotercero_ids' => []}.merge(params[:tercero] || {})
respond_to do |format|
if #tercero.save
format.html { redirect_to(#tercero, :notice => 'Tercero was successfully created.') }
format.xml { render :xml => #tercero, :status => :created, :location => #tercero }
else
format.html { render :action => "new" }
format.xml { render :xml => #tercero.errors, :status => :unprocessable_entity }
end
end
end
# PUT /terceros/1
# PUT /terceros/1.xml
def update
#tercero = Tercero.find(params[:id])
respond_to do |format|
if #tercero.update_attributes(params[:tercero])
format.html { redirect_to(#tercero, :notice => 'Tercero was successfully updated.') }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => #tercero.errors, :status => :unprocessable_entity }
end
end
end
# DELETE /terceros/1
# DELETE /terceros/1.xml
def destroy
#tercero = Tercero.find(params[:id])
#tercero.destroy
respond_to do |format|
format.html { redirect_to(terceros_url) }
format.xml { head :ok }
end
end
end
edit 3
the page error is:
NameError in Terceros#new
Showing /home/andres/desarrollos/rubyonrails/proyecto/app/views/terceros/_form.html.erb where line #92 raised:
uninitialized constant Tercero::terceroclasificacion
Extracted source (around line #92):
89: <div class="field">
90: <% for tipotercero in Tipotercero.all %>
91: <div>
92: <%= check_box_tag "tercero[tipotercero_ids][]", tipotercero.id, #tercero.tipoterceros.include?(tipotercero) %>
93: <%= tipotercero.nombre %>
94: </div>
95: <% end %>
Trace of template inclusion: app/views/terceros/new.html.erb
4 edit
error to create tercero is:
NoMethodError in TercerosController#create
undefined method `type_cast' for nil:NilClass
Rails.root: /home/andres/desarrollos/rubyonrails/proyecto
Application Trace | Framework Trace | Full Trace
app/controllers/terceros_controller.rb:44:in `new'
app/controllers/terceros_controller.rb:44:in `create'
Request
Parameters:
{"tercero"=>{"identificacion"=>"1110465574",
"empresa"=>"hogar",
"tipo_identificacion"=>"2",
"direccion1"=>"dierccion",
"nombre"=>"carlos andres",
"direccion2"=>"123",
"ciudad_id"=>"2",
"telefono_fijo"=>"132233",
"telefono_movil"=>"123123",
"fecha_nacimiento(1i)"=>"2013",
"observaciones"=>"",
"fecha_nacimiento(2i)"=>"10",
"fecha_nacimiento(3i)"=>"17",
"representante_legal"=>"",
"tipotercero_ids"=>["1",
"2",
"3"],
"apellido1"=>"colonia",
"apellido2"=>"riveros",
"pagina_web"=>""},
"commit"=>"Crear Tercero",
"authenticity_token"=>"SeUoILctpNr9t6Lx8wSoHVTO5mjk0qJfnzJsb9Jtzao=",
"utf8"=>"✓"}

Answer 1

Sometimes other model cannot be derived from the association name just by Rails conventions and such strange errors occurs. You can pass class name like this:
has_many :terceroclasificaciones, :class_name => "Terceroclasificacion"
And btw, you can make your life easier just by using English names for your models and stuff. You do localization in your view anyways.

Answer 2

Try to remove this
attr_accessor :tercero_id, :tipotercero_id
I think you want it to be an attr_accessible but not attr_accessor