CODEWITHSUNDEEP
ruby-on-railsrubyhash
Vinay
Vinay

Reputation: 334

Replace hash keys with new string in ruby

Company model: There is aa attribute name and company has_many users.

Users model: User belongs to company.

Query:

After the query execution, below is my result.

users = {1360=>[#<User id: 2183, company_id: 1360, name: "XYS">, #<User id: 2184, company_id: 1360, name: "XYS1">], 1361=>[#<User id: 2185, company_id: 1361, name: "ABC">]}

In users object, there is one more column that is company_name which is fetch in query as alias, because I want only company_name not other attributes.

users = {1360=>[#<User id: 2183, company_id: 1360, name: "XYS", company_name="One">, #<User id: 2183, company_id: 1360, name: "XYS", company_name="One">], 1361=>[#<User id: 2185, company_id: 1361, name: "ABC", company_name="Two">]}

Here is the my desired output. (Key would be company_name and its velue will be array of users info(name and id))

users = {"One"=>[["XYS", 2183], ["XYS1", 2184]], "Two"=>[["ABC", 2185]]}

How can I do that. Because when I try to replace the key(id) with name throughs an error

Upvotes: 1

Views: 188

Answers (1)

Piotr Kruczek
Piotr Kruczek

Reputation: 2390

Try this

users.map{  |_,array| [array.first.company_name, array.map{ |a| [a.name, a.id] }] }.to_h

Upvotes: 2

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