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Brent Forwood
18,999 PointsMethod does not work, but attr_writer does
I'm just curious as to why, when I got to the part to change title.name, we first used this method:
def title=(new_title)
@title = new_title
end
This returned the error:
Title: Mr.
name.rb:23:in <main>': private methodtitle=' called
for #<Name:0x007f8bad0fc9c8> (NoMethodError)
When I got to the part where we deleted the method and inserted attr_writer :title, it worked fine. I cannot figure out what may have been wrong with th method. The above is exactly how I had it in the code.
Brent Forwood
18,999 PointsHey Francisco,
The thing is, what is typed up above is what was also instructed in the video. That was my main concern.
But thank you for the reply, and I will go back to the video when I get a chance and try that out. Adding the 'return' makes sense, and will most likely go back and try it when I get a chance.
1 Answer
Andrew Stelmach
12,583 PointsFrancisco's answer is incorrect. Your method (so long as something is passed in as an argument) would return the value of @title.
It's difficult to know for sure what happened in your code to cause the error without seeing it, but it looks like the method was private (underneath 'private' in a class), and you tried to call it from somewhere that can't get to it (basically anywhere outside of its class).
attr_writer :title
is the SAME as having
def title=(new_title)
@title = new_title
end
Further reading:
http://stackoverflow.com/questions/5046831/why-use-rubys-attr-accessor-attr-reader-and-attr-writer
Francisco Cunha
3,017 PointsFrancisco Cunha
3,017 PointsHi Brent,
In your code, you don't return any value, hence the "(NoMethodError)". Just add "return @title".
Here's an example: START def title(new_title) @title = new_title return @title end
title1 = title("Mr.") puts title1 END
What the attr_writer allows you to do is to overwrite title.name, so it is much simpler to use.
Hope it helped.