TypeError (String can't be coerced into Fixnum)?

Question

I\'m getting a weird error. My app runs perfectly fine on my localhost but on my Heroku server it\'s giving this error: TypeError (String can\'t be coerced into Fixnum

Answer 1

Ruby uses + as a combination tool for strings AND mathematical situations.

Simple fix:

def rep_score(user)
 rep = 0
 user.badges.each do |b|
   rep = rep + b.rep_bonus.to_i
 end
 return rep
end

to_i is changing rep_bonus, which is probably from the database model, from a string result into an integer. There are a few different typecasts you can set. To name a few conversions:

• Array: to_a
• Float: to_f
• Integer: to_i
• String: to_s