Category: Ruby

I want to convert, for e.g. Hello_1_.Bye to Hello[1].Bye Note that [1], i.e., within brackets contain only digits I started with something like this that didn’t work.. filter { mutate { gsub =&…

Using Rails, I was originally looking for a way to use the resource path helper methods (e.g. users_path) in models, and this gives me the answer: I can use Rails.application.routes.url_helpers….

Our team maintains a ruby script that must support any ruby >= 1.9.3 (yes, that’s a pretty old ruby version but this is something outside our control at the moment). Recently, we added a change …

A related question is already available at https://stackoverflow.com/a/11427868/936494 but what I want to understand is when using a.sort { |x, y| x <=> y } how it knows that this block should …

I have a Sidekiq worker to which I send my controller params. My controller params look like this. def my_params params.require(:users).permit(employees: [:param1, param_requested_attributes: [:…

I recently ran into this and am curious if I am using named parameters incorrectly or to better understand why they behave this way. def test_param(b=false) if b puts ‘param is true’ …

I have the Shipping entity that references the Address entity twice, for example: and the shipment model is as follows belonging twice to the entity of address (address_from, address_to): class …

I’ve found some answers to generate commented HTML code with HAML : / This is actually an HTML comment and not an HAML comment But it’s not what I want. Indeed, I’m searching for a way to make a …

I understand that x |= y basically means x = x|y. The operator | is defined for the class Set as calculating the union of two sets. Indeed we can see: require ‘set’ r = Set.new(%w(a b)); s = Set.new(%…

I want to create a function to set the instance variable like attr_reader class Base def exec # get all functions to check # if all functions return true # I will do something …