CODEWITHSUNDEEP
ruby-on-railsactiverecordruby-on-rails-3.2erb
Kiran
Kiran

Reputation: 5526

rails object expected got string

I have seen multiple questions similar to this, but none worked for me.

I have a team model:

class Team < ActiveRecord::Base
  has_one :p1, :class_name => "Player", :foreign_key => 'player_id', :validate => true
  has_one :p2, :class_name => "Player", :foreign_key => 'player_id', :validate => true
end

in my team's _form.html.erb, I am referring to players as

  <%= f.collection_select :p1, Player.all, :id, :name %>

However, on form submission, I see the error:

Player(#28401456) expected, got String(#14111904)

Application Trace | Framework Trace | Full Trace
app/controllers/teams_controller.rb:47:in `new'

Parameters:
{"utf8"=>"✓",
 "authenticity_token"=>"GSIcEvROFnvgGWT4HvE2VNqRw4NxU1J8iAw/WhZeRLk=",
 "team"=>{"p1"=>"1"},
 "commit"=>"Create Team"}

And here is the code at line 

def create
  @team = Team.new(params[:team])
  .....
end

Any ideas please?

Upvotes: 4

Views: 6941

Answers (3)

Kiran
Kiran

Reputation: 5526

Finally, this worked:

 <%= f.collection_select :p1_id, Player.all, :id, :name %>

Here is the magic: My migration has t.references p1 and that created a column of p1_id in the database. When The form is submitted, rails is looking to fill in the id of the reference at:

def create
  @team = Team.new(params[:team])
  .....
end

Upvotes: 6

dealer
dealer

Reputation: 474

Try this:

<%= f.collection_select :player_id, Player.all, :id, :name %>

Upvotes: 0

Jason Swett
Jason Swett

Reputation: 45094

I could be wrong, but my guess is that instead of

<%= f.collection_select :p1, Player.all, :id, :name %>

you need

<%= f.collection_select :p1, :team_id, Player.all, :id, :name %>

http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-collection_select

Upvotes: 0

Related Questions