ruby - rails 4-- User expected, got string -

ruby - rails 4-- User expected, got string -

i have simple messaging scheme built rails app.

the table looks this:

create_table :messages |t| t.integer :from_id t.integer :to_id t.string :subject t.text :message t.timestamps end

the model simple well:

belongs_to :to_id, class_name: "user", :foreign_key => "to_id" belongs_to :from_id, class_name: "user", :foreign_key => "from_id"

when submit message form however, getting type mismatch, , when seek create new message in rails console, throws same error.

user(#-588576898) expected, got string(#-603326958)

apparently expecting user object rather user.id value. assume due error in how created model?

where did go wrong?

edit:

the form code below. however, note experiencing same issue when creating message straight rails console, assuming it's model:

> m = message.new => #<message id: nil, from_id: nil, to_id: nil, subject: nil, message: nil, created_at: nil, updated_at: nil> > m.from_id = 1 activerecord::associationtypemismatch: user(#-582821898) expected, got fixnum(#-597136528)

here's form, stripping labels , html:

<%= form_for @message, :url => {:controller => "messages", :action => "create"}, :html => {:class => 'form-horizontal form', :role => 'form'} |f| %> <%= f.select :to_id, options_from_collection_for_select(user.all, :id, :first_name) %> <%= f.text_field :subject %> <%= f.text_area :message %> <%= f.submit class: "btn btn-large btn-primary" %> <% end %>

the name of association (the first argument belongs_to) should not same name of column contains foreign key.

for example

belongs_to :to, class_name: "message"

as stands accessor methods generated association shadowing accessor method attribute.

ruby-on-rails ruby ruby-on-rails-4