Country expected, got String error

Question

I have 2 models \"Country\" and \"League\", Country has many Leagues and League belongs to Country. When adding a league, I have a listbox with countries and when the form i

Answer 1

I was getting this error:

Country (#xxx) expected, got String (#xxx) This was how I fixed it in Rails 3.0.x:

<%= f.collection_select :country_id, Country.all.collect,  :id, :name %>

Answer 2

for others who met the same problem:

this error is caused when you have two fields in your form like:

video: 'some string'
video['url']:  'some url'

then rails will crash with the error: expected Hash (got String) for param

the solution is quite simple: change 'video' to something else. e.g.:

video_origin_url: 'some string'
video['url']: 'some url'

Answer 3

You need to send country_id (which is the primary key) instead of name 'England' in that request. The relationships are associated with the primary keys.

<%= f.select :country, Country.all.collect {|c| [ c.name, c.id ] } %>

Answer 4

I was getting this error:

Artist (#xxx) expected, got String (#xxx)

This was how I fixed it in Rails 3.0.x:

class OtherModel
   belongs_to :artist

   validates :artist, :presence => true

   #...
end

<%= form_for_other.collection_select :artist_id, 
                                     Artist.all, :id, :name,
                                     :prompt => true %>

So it worked when I set the method on the collection_select input to the foreign key instead of the model name

Answer 5

The League model should reference country by its id ( country_id ) and not the string.

Answer 6

You need to use :country_id instead of :country

<%= f.select :country_id, Country.all.collect {|c| [c.name, c.id]} %>