Sorry for my bad english. I have to add a method in Date class in Rails because i want to use my translated day names. So, i tried:
class Date
def date_of_next(day)
date = Date.parse(day)
delta = date > Date.today ? 0 : 7
date + delta
end
end
in config/initializers/date_of_next.rb but when i call Date.date_of_next(day) in my controller i get "no method in Date". How can i do that? And where should i put the file?
Putting monkey patched files under initializers is fine (in spite of how "good" monkey patching is itself :)).
You want to change the method definition to following:
class Date
def self.date_of_next(day)
date = parse(day)
delta = date > today ? 0 : 7
date + delta
end
end
Your problem was that you called a singleton method on the object Date, whereas it did not have such method defined.
As Andrey Deineko points out in his comment (and now answer), you wrote an instance method but called a class method. Try:
class Date
def self.date_of_next(day)
date = Date.parse(day)
delta = date > Date.today ? 0 : 7
date + delta
end
end
The other (and probably better) way would be more object oriented with an instance method:
class Date
def date_of_next
delta = self > Date.today ? 0 : 7
self + delta
end
end
day.date_of_next # you might want to pick a better name
One more hint: monkey patching (extending an existing class in such a way) is not the best solution on the longer run. You might want to switch to different patterns some day.
