Use block for loop in Ruby

When we have a block of code that we'd like to loop through given numbers of times, we typically do

(1..10).each 
  # Run some code
end

Sometimes it's hard to document where the number 10 comes from and why. You certainly can do something like this:

ENV['QUERY_RETRY_LIMI'].to_i.times do
  # Run some code
end

That's kind of explaining where the number is from. But next time you run a similar loop, you'll have to do the same thing agin.

A better way of doing this is to use block.

def with_query_try_limit(limit: 
  ENV['QUERY_RETRY_LIMIT'].to_i)
    limit.times do
      yield
    end
end

So whenever there's a need to loop through a function ENV['QUERY_RETRY_LIMIT'] numbers of times, it could be referenced as:

with_query_try_limit do
  # Code
end

It makes a better self documenting as well as be reusable.