RoR string from array

Question

I have an array of hashes generated by map

arr = current_order.order_items.map{|oi|[{name:oi.name,price:oi.price}]

[{:name=>"Jacket", :price=>300},
 {:name=>"Bag", :price=>650 },
 {:name=>"Suit", :price=>300}].to_s

i need to make a string from it like this

name: Jacket,price:300
name: Bag,price:650
name: Suit,price:300

What i did it gsub every needed element like gsub(':size=>','size:')

but it looks very ugly

Need more convenient solution for this

michaeldever · Accepted Answer · 2017-08-12 10:32:11Z

3

You could do something like:

Define a function on a hash to pretty print it for you.

map over the array to gain pretty printed strings for each.

def pretty_print(hash)
  hash.map {|key, value| "#{key}: #{value}"}.join(', ')
end
arr.map {|hash| pretty_print(hash)}

edited Aug 12, 2017 at 10:32

answered Mar 27, 2016 at 11:11

michaeldever

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Babur Ussenakunov · Accepted Answer · 2016-03-27 11:09:22Z

2

If keys are predetermined:

arr.map { |item| "name:#{ item[:name] }, price:#{ item[:price] }" }.join("\n")

If not:

arr.map { |item| item.map { |k, v| "#{ k }:#{ v }" }.join(', ')  }.join("\n")

edited Mar 27, 2016 at 11:09

answered Mar 27, 2016 at 11:03

Babur Ussenakunov

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