Rails testing error: argument of WHERE must be type boolean, not type integer -

users can vote posts through has_many association. i'm getting error running tests:

activerecord::statementinvalid: pg::datatypemismatch: error: argument of must type boolean, not type integer 

from test:

test "should unvote post standard way"   @user.vote(@post_2)   postvoterelationship = @user.active_post_vote_relationships.find_by(voted_id: @post_2.id)   assert_difference '@user.postvoting.count', -1     delete postvoterelationship_path(postvoterelationship)   end end 

postvoterelationships_controller.rb

def destroy   @user = postvoterelationship.find(params[:id]).voter   @post = postvoterelationship.find_by(params[:id]).voted   @user.unvote(@post)   respond_to |format|     format.html       redirect_to @user     end     format.js   end end # destroy 

routes.rb

resources :postvoterelationships,  only: [:create, :destroy] 

postvoterelationship.rb

class postvoterelationship < activerecord::base   belongs_to :voter, class_name: "user"   belongs_to :voted, class_name: "post"   validates  :voter_id, presence: true   validates  :voted_id, presence: true end 

user.rb

has_many :postvoting, through: :active_post_vote_relationships, source: :voted 

edit:

server logs:

started delete "/postvoterelationships/207" ::1 @ 2015-06-16 21:02:07 +0100 processing postvoterelationshipscontroller#destroy js parameters: {"utf8"=>"✓", "authenticity_token"=>"bp17swn2k6lfqnnxea6nneo5ywxkgopi9psxliekzoor3xuff4chhs3+w+9wp8eb3gwzfhsauaypiip1/kkh9a==", "commit"=>"unvote", "id"=>"207"} character load (0.3ms)  select  "characters".* "characters" "characters"."callsign" = $1 limit 1  [["callsign", "bazzer"]] user load (0.4ms)  select  "users".* "users" "users"."id" = $1 limit 1  [["id", 1]] postvoterelationship load (1.2ms)  select  "postvoterelationships".* "postvoterelationships" "postvoterelationships"."id" = $1 limit 1  [["id", 207]] character load (0.7ms)  select  "characters".* "characters" "characters"."id" = $1 limit 1  [["id", 1]] postvoterelationship load (1.8ms)  select  "postvoterelationships".* "postvoterelationships" (207) limit 1 pg::datatypemismatch: error:  argument of must type boolean, not type integer line 1: ...ationships".* "postvoterelationships" (207) limit...                                                          ^ : select  "postvoterelationships".* "postvoterelationships" (207) limit 1 completed 500 internal server error in 14ms (activerecord: 4.3ms)  activerecord::statementinvalid (pg::datatypemismatch: error:  argument of must type boolean, not type integer line 1: ...ationships".* "postvoterelationships" (207) limit...                                                          ^ : select  "postvoterelationships".* "postvoterelationships" (207) limit 1): app/controllers/postvoterelationships_controller.rb:24:in `destroy' 

this not complete answer, can't post comments (not enough reputation).

have tried @ sql queries made? can show them in test environment, check this question.

and, in postvoterelationships_controller.rb, think:

  @post = postvoterelationship.find_by(params[:id]).voted 

should be:

  @post = postvoterelationship.find(params[:id]).voted