associations - Get id form another table, rails -

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i have table test having fields 'user_id' , 'post_id'. user_id fetch current_user.id , post_id post table. do: in test controller:-

def create   @user = current_user   @test = test.new(params[:test])   @post = post.find(params[:id])   @test.post_id = @post.id   @test.user_id = @user.id respond_to |format|    @test.save    format.html { redirect_to(:back, :notice => "successfull") }   else     format.html { render :action => "new" }   end end

in models, create association:-

in test.rb:

 belongs_to :post

in post.rb:

has_many :test

the view page is:

 = form_for @test, :validate => true |f|    .span      = f.text_field :email, :placeholder =>"email address"    .span      = f.label :name      = f.text_field :name    .span      = f.submit "save"

the user_id save post_id give error:

 called id nil, mistakenly 4 -- if wanted id of nil, use object_id

how can resolve problem ?

is standard message in rails tells you tried invoke .id on nil value.

i suspect current_user nil. can sure raise current_user.inspect think tell nil

you sure logged in current_user not nil


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