i have such model:
class ToType < ActiveRecord::Base
attr_accessible :Name, :TYP_CCM, :TYP_CCM_TAX, :TYP_CDS_ID, :TYP_CTM,
:TYP_CYLINDERS, :TYP_DOORS, :TYP_HP_FROM, :TYP_HP_UPTO, :TYP_ID,
:TYP_KV_ABS_DES_ID, :TYP_KV_ASR_DES_ID, :TYP_KV_AXLE_DES_ID,
:TYP_KV_BODY_DES_ID, :TYP_KV_BRAKE_SYST_DES_ID, :TYP_KV_BRAKE_TYPE_DES_ID,
:TYP_KV_CATALYST_DES_ID, :TYP_KV_DRIVE_DES_ID, :TYP_KV_ENGINE_DES_ID,
:TYP_KV_FUEL_DES_ID, :TYP_KV_FUEL_SUPPLY_DES_ID, :TYP_KV_MODEL_DES_ID,
:TYP_KV_STEERING_DES_ID, :TYP_KV_STEERING_SIDE_DES_ID,
:TYP_KV_TRANS_DES_ID, :TYP_KV_VOLTAGE_DES_ID, :TYP_KW_FROM, :TYP_KW_UPTO,
:TYP_LA_CTM, :TYP_LITRES, :TYP_MAX_WEIGHT, :TYP_MMT_CDS_ID, :TYP_MOD_ID,
:TYP_PCON_END, :TYP_PCON_START, :TYP_RT_EXISTS, :TYP_SORT, :TYP_TANK,
:TYP_VALVES, :is_in_to
set_primary_key :TYP_ID
belongs_to :to_model
has_many :to_articles, :foreign_key => "to_type_id", :dependent =>
:destroy
end
class ToArticle < ActiveRecord::Base
attr_accessible :details, :manufacturer, :name, :oem_number,
:only_with_vin, :quantity, :to_type_id
belongs_to :to_type, :foreign_key => "TYP_ID"
belongs_to :to_engine
end
(some db is converted from big catalog, so rails conventions are a little
bit missed)
my show view of to_type is:
part of it:
%td
= link_to "Подробнее", admin_catalog_to_to_article_path(c),
:class=>'btn btn-primary'
= link_to "Редактирование",
edit_admin_catalog_to_to_type_path(c), :class=>'btn btn-warning'
= link_to "Удалить", admin_catalog_to_to_type_path(c),
:confirm => "!!!Тип #{c.Name} будет удалён!!!! Вы уверены?", :method =>
:delete, :class => "btn btn-danger"
my show action work normally, also controller:
class Admin::Catalog::To::ToTypesController < ApplicationController
respond_to :html
before_filter :auth_user
def auth_user
redirect_to new_admin_session_path unless admin_signed_in?
end
def show
@mod_id = params[:id]
@man = ToType.find(:all, conditions: {:TYP_MOD_ID => @mod_id},
order: "Name ASC")
render :layout => 'admin'
end
def edit
@man = ToType.find(params[:id])
render :layout => 'admin'
end
def update
@man = ToType.find(params[:id])
if @man.update_attributes(params[:to_type])
redirect_to admin_catalog_to_to_type_path(@man.TYP_MOD_ID)
else
render :layout => 'admin'
end
end
def new
@man = ToType.new
@mod_id = params[:mod_id]
render :layout => 'admin'
end
def create
@man = ToType.new(params[:to_type])
@mod_id = params[:mod_id]
@man.TYP_MOD_ID = @mod_id
if @man.save
redirect_to admin_catalog_to_to_type_path(@mod_id)
else
render :layout => 'admin'
end
end
def destroy
@man = ToType.find(params[:id])
if @man.destroy
redirect_to admin_catalog_to_to_type_path(@man.TYP_MOD_ID)
else
render :layout => 'admin'
end
end
end
and route:
namespace :admin do
namespace :catalog do
namespace :to do
resources :to_manufacturers,
:to_models,
:to_types,
:to_articles
end
end
end
form partial:
= form_for [:admin, :catalog, :to, @typ] do |f|
= f.label :id
...
when i try edit or create i get:
undefined method `model_name' for NilClass:Class
i think that something is bad with connection with model: with update and
create. In log i see that object is founded in db for edit for example, and
in log i can see that @man is not empty, but i still get undefined method
`model_name' for NilClass:Class . Why?
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