Posts by taq • 104 points

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  A: What is cyclomatic complexity?

  Illustrated cyclomatic complexity: Think about how in this case would be the graph that @Maniero exemplified above. :-)…

  terminology software-engineering testing flow-control

  answered 7 years, 7 months ago taq 104

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  A: Read file and search word

  If you want to find out which letter repeats, you can do so: File.read("/tmp/teste.txt").chomp. split(/;/). reduce(Hash.new(0)) { |m, i| m[i] += 1; m }. select { |k, v| v > 1 } Upshot: =>…

  ruby

  answered 7 years, 7 months ago taq 104

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  A: How to return null if no result is found with find_by?

  The find_by always returns 1 or nil. How you switched to where, returns a collection or empty []. You can use def self.scheduled where(state: :scheduled).first end to return the first result or nil.…

  ruby-on-rails ruby

  answered 7 years, 7 months ago taq 104

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  A: How to find a letter in a string?

  If you just want to know if it includes the lyrics: "palavra".include?("a") If you want the number of times it appears: "palavra".count("a")

  string ruby

  answered 7 years, 7 months ago taq 104

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  A: Undefined method `id' for nil:Nilclass

  It’s got a hell of a face to be a method new in a controller of a Rails application where @page would be being initialized somewhere out of of the method, probably in a before_action. If you don’t…

  ruby-on-rails ruby

  answered 7 years, 7 months ago taq 104