ruby on rails 3 - NoMethod error in create action -
i error, when submiting form (views/users/show.html.erb) should create farms through farmscontroller , userscontroller:
nomethoderror in farms#create
showing /media/rok/local disc/users/koko/documents/kmetije/kmetije/app/views/users/show.html.erb line #42 raised:
undefined method `farms' nil:nilclass
extracted source (around line #42):
39: 40: <div id="show"> 41: <h2>seznam kmetij</h2> 42: <% unless @user.farms.empty? %> 43: <table id="farms"> 44: <tr> 45: <th>ime</th> app/views/users/show.html.erb:42:in _app_views_users_show_html_erb___3046909201139407898_28545460_3894795499615530291' app/controllers/farms_controller.rb:14:increate'
here problematic create action in farmscontroller:
class farmscontroller < applicationcontroller def new @farm = current_user.farms.build end def create @farm = farm.new(params[:farm]) if @farm.save redirect_to 'users/show' else render 'users/show' end end end here userscontroller, issues show action, should show results in view:
class userscontroller < applicationcontroller def show @user = user.find(params[:id]) @farms = @user.farms.paginate(:page => params[:page]) end end this view, has form add farms in (id="add"), , should show created farms in (id="show"):
<body> <div id="add"> <h2>dodaj kmetijo</h2><br /> <%= form_for(:farm, :url => farms_path) |f| %> <%= f.label :name, "ime kmetije" %><br /> <%= f.text_field :name %> <%= f.label :region, "območje" %><br /> <%= f.text_field :region %> <%= f.label :north, "geografska širina" %><br /> <%= f.text_field :north %> <%= f.label :east, "geografska dolžina" %><br /> <%= f.text_field :east %> <%= f.label :description, "opis" %><br /> <%= f.text_area :description, rows: "6" %><br /> <%= f.label :categories, "kategorije" %><br /> <%= f.text_area :categories, rows: "1" %><br /> <%= f.label :products, "izdelki" %><br /> <%= f.text_area :products, rows: "2" %><br /> <%= f.submit "vstavi" %> <% end %> </div> <div id="show"> <h2>seznam kmetij</h2> <% unless @user.farms.empty? %> <table id="farms"> <tr> <th>ime</th> <th>regija</th> <th>n</th> <th>e</th> <th>opis</th> <th>kategorije</th> <th>izdelki</th> <th>izbris</th> </tr> <tr> <td><%= farm.name %></td> <td><%= farm.region %></td> <td><%= farm.north %></td> <td><%= farm.east %></td> <td><%= farm.description %></td> <td><%= farm.categories %></td> <td><%= farm.products %></td> <td><%= link_to "delete", farm, :method => :delete, :confirm => "izbrišem?", :title => farm.name %></td> </tr> </table> <%= will_paginate @farms %> <% end %> </div> </body> there connection (farms belong_to :user) in farm model:
class farm < activerecord::base attr_accessible :name, :region, :north, :east, :description, :categories, :products belongs_to :user validates :name, :presence => true validates :region, :presence => true validates :north, :presence => true validates :east, :presence => true validates :description, :presence => true validates :categories, :presence => true validates :products, :presence => true validates :user_id, :presence => true default_scope :order => 'farms.region desc' end and in user model:
class user < activerecord::base attr_accessor :password attr_accessible :name, :password, :password_confirmation has_many :farms validates :name, :presence => true, validates :password, :presence => true, :confirmation => true, end thank time , effort!
define @user= current_user in create method of farms controller or can use current_user instead of @user in show.html.erb.