El jue, 25-09-2008 a las 10:27 +0100, Matt Wynne escribió:
> You're expecting the Bar class to implement an interface which
> supports you calling count -= 1 on it.
>
> Have you checked (for example, using script/console) that Bar does
> indeed offer this method? The error indicates that it doesn't, and
> from the code you've shown us I'd be surprised if it did - it's not
> something you can do to normal ActiveRecord objects - you'd have to
> destroy a particular instance, for example, for the result of count
> to go down.
>
> I think it might be easier for us if you can show us an example
> that's closer to what you're actually trying to do.
>
> cheers,
> Matt
> ----
> http://blog.mattwynne.net
> http://songkick.com
>
> In case you wondered: The opinions expressed in this email are my own
> and do not necessarily reflect the views of any former, current or
> future employers of mine.
>
>
>
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Ok. I'm coding a web application called: SFO (Soccer Football Online).
This project it's like game Football Manager, but all players are
humans. Now, I'm coding the Class Alineado, here's the Model of this
Class:
# == Schema Information
# Schema version: 20080923152754
#
# Table name: alineados
#
# id :integer not null, primary key
# club_id :integer not null
# jugador_id :integer not null
# partido_id :integer not null
# posicion :integer not null
# entrada :integer
# salida :integer
# alineado_id :integer
#
class Alineado < ActiveRecord::Base #This class would be Foo.
belongs_to :club
has_many :jugadores
belongs_to :partido
has_one :alineado
validates_presence_of :club_id, :jugador_id, :partido_id, :posicion
def jugando?
!entrada.nil? and entrada <= self.partido.minuto and salida.nil?
end
def sustituido?
!salida.nil? and salida <= self.partido.minuto
end
def banquillo?
entrada.nil? or sustituido? or !jugando?
end
def sustituido_por?
self.alineado
end
def cambiar_por(jugador_entrante) #This would be the method foo of Foo
class
cambio = false
if jugador_entrante.banquillo? && !jugador_entrante.sustituido? &&
jugador_entrante.club_id == self.club_id
if club_id == self.partido.local
if self.partido.cambios_local > 0
self.partido.cambios_local -= 1 #and this would be the
operation self.bar.count -= 1
cambio = true
end
else #el jugador es del equipo visitante
if self.partido.cambios_visitante > 0
self.partido.cambios_visitante -= 1 #same operation
cambio = true
end
end
end
if cambio
self.salida = self.partido.minuto
jugador_entrante.entrada = self.partido.minuto
end
cambio
end
def validate
errors.add(:entrada, "no debe ser menor que 0 si está jugando") if !
entrada.nil? and entrada < 0
errors.add(:entrada, "no debe ser mayor que el minuto actual") if !
entrada.nil? and self.entrada > self.partido.minuto
errors.add(:entrada, "no debe tener una entrada mayor o igual que la
salida al partido") if !entrada.nil? and !salida.nil? and entrada >=
salida
errors.add(:salida, "no debe haber sustituido si no ha entrado al
partido") if entrada.nil? and !salida.nil?
end
end
#partido.rb
Class Partido < ActiveRecord::Base #This would be the class Bar
end
#alineado_spec.rb
module AlineadoSpecHelper
def atributos_validos(partido=nil, jugador=1, club=1, posicion=1)
{
:club_id => club,
:jugador_id => jugador,
:partido => partido,
:posicion => posicion
}
end
end
describe Alineado, ".cambiar_por" do
include AlineadoSpecHelper
before(:each) do
@partido = mock(Partido)
@partido.stub!('local').and_return(:equipo_local)
@partido.stub!('visitante').and_return(:equipo_visitante)
@partido.stub!('minuto').and_return(20)
end
describe "with the game in play and sustitutions aviable" do
before(:each) do
@partido.stub!('cambios_local').and_return(3)
@partido.stub!('cambios_visitante').and_return(3)
@jugador_sustituido = Alineado.new(atributos_validos(@partido,
:jugador_sustituido, :equipo_local))
@jugador_sustituido.entrada = 0
@jugador_entrante = Alineado.new(atributos_validos(@partido,
:jugador_entrante, :equipo_local))
@cambios_antes = @partido.cambios_local
end
it "should decrement in one the sustitutions aviables" do
@jugador_sustituido.cambiar_por(@jugador_entrante)
@partido.cambios_local.should eql(@cambios_antes - 1)
end
end
And I got this error:
4)
Spec::Mocks::MockExpectationError in 'Alineado.cambiar_por with the game
in play and sustitutions aviable should decrement in one the
sustitutions aviables'
Mock 'Partido_1004' received unexpected message :cambios_visitante= with
(2)
/home/carlos/NetBeansProjects/ofs/app/models/alineado.rb:53:in
`cambiar_por'
spec/models/alineado_spec.rb:263:
spec/models/alineado_spec.rb:193:
And I don't know how fix this error. It's possible test this?
P.D.: Sorry for my english.
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