Associations errors

Rails
1

undefined method `each’ for 0:Fixnum
at line
@school = School.find_by_title(params[:school_id].gsub(’-’, " "))

for team in @school.teams
…

end

@school does exist cause i tried with .find(:first) and it gave the
same error.

Also I’m getting
undefined method `reject’ for #Game:0x24ca1c4
From @home.game_ids = @game

@game = Game.new(params[:game])
@game.opponent = params[:team][:name]

@home = Team.find_by_user_id(current_user.id)
@opponent = Team.find_by_name(@game.opponent)

  if @game.save
    flash[:notice] = 'Game was successfully created.'
    @home.game_ids = @game
    @opponent.game_ids = @game

Here are my models
class Game < ActiveRecord::Base
has_and_belongs_to_many :teams
end
class Player < ActiveRecord::Base
belongs_to :team
end
class School < ActiveRecord::Base
has_many :teams
belongs_to :users

def to_param
“#{title.gsub(/[^a-z0-9]+/i, ‘-’)}”
end
end
class Team < ActiveRecord::Base
has_many :players
has_and_belongs_to_many :games
belongs_to :school
belongs_to :user

def to_param
“#{name.gsub(/[^a-z0-9]+/i, ‘-’)}”
end

end
class User < ActiveRecord::Base
has_one :team
has_one :school
end

2

edberner wrote:

undefined method `each’ for 0:Fixnum
at line
@school = School.find_by_title(params[:school_id].gsub(’-’, " "))

for team in @school.teams
…

end

Not sure about this one, but it looks like @school.teams is returning a
0, not an array of teams. “each” is called for you when you use a
for/in loop. It is the equivalent of

@school.teams.each { |team| … }

So “undefined method `each’ for 0:Fixnum” means “each” is being called
on the integer 0.

Also I’m getting
undefined method `reject’ for #Game:0x24ca1c4
From @home.game_ids = @game

    @home.game_ids = @game
    @opponent.game_ids = @game

game_ids= is expecting an array of integers, your are passing it a model
object. You probably just want to insert the game in the existing
association. Try this:

@home.games << @game
@opponent.games << @game

3

Thanks. It is starting to make sense to stop referring to elements by
their rudimentary primary and secondary ids.

Why might it not be getting the array of teams. I clearly have it set
up in the model?

On Apr 7, 4:39 pm, Alex W. [email protected]

4

Does anybody know why this is happening? Thanks.

5

Got it. Calling team.games returned the array of my association. Not
the integer field I wanted. Changed field name and all is ok.

6

It’s interesting because now I get that same error here
undefined method `each’ for 1:Fixnum

def update
@game = Game.find(params[:id])

for team in @game.teams
  team.increment! :games
end

On Apr 7, 4:39 pm, Alex W. [email protected]