Undefined method `+'

[Danny L.]

hey guys the following line of code is producing a "undefined method
`+':

@plays += 1


cheers,

Danny

 

[Sam Duncan]

What is the content of @plays?

Sam

 

[John Feminella]

Is it an "undefined method '+' on NilClass"? If so, you forgot to
assign a value to @plays before incrementing it. You might try
something like this instead:

def plays
@plays ||=3D 0
end

def plays=3D(v)
@plays =3D self.plays + 1
end

~ jf
--
John Feminella
Principal Consultant, BitsBuilder
LI: http://www.linkedin.com/in/johnxf
SO: http://stackoverflow.com/users/75170/

 

[Rob Biedenharn]

Is it an "undefined method '+' on NilClass"? If so, you forgot to
assign a value to @plays before incrementing it. You might try
something like this instead:

def plays
@plays ||= 0
end

def plays=(v)
@plays = self.plays + 1
end

~ jf
--
John Feminella
Principal Consultant, BitsBuilder
LI: http://www.linkedin.com/in/johnxf
SO: http://stackoverflow.com/users/75170/

I think you'd want:

def plays=(v)
@plays = v
end

In your original:

plays = 5
puts plays
1 # <== ???

I can't imagine that's what the OP wants to see.



Rob Biedenharn
(e-mail address removed) http://AgileConsultingLLC.com/
(e-mail address removed) http://GaslightSoftware.com/

 

[John Feminella]

Whoops, that's what I get for copy-pasting into the wrong segment. You
are correct, Rob.

~ jf
--
John Feminella
Principal Consultant, BitsBuilder
LI: http://www.linkedin.com/in/johnxf
SO: http://stackoverflow.com/users/75170/