create a hash in an array with values from database

Question

i have firstname,lastname and id of a list of people in database. Now i want to make an array like

[{
  value: <corresponding id>,
  label: "<corresponding person name>"
 },
 {
  value: <corresponding id>,
  label: "<corresponding person name>"
 },
  ....
]

Salil · Accepted Answer · 2012-09-19 09:00:37Z

3

users = User.all
user_hash_array = users.collect{|user| {:value => user.id, :label => user.firstname}}

This will work like following

id   firstname   lastname
1    Salil       Gaikwad
2    Nidhin      Bose

This will gives you following

user_hash_array = [{:value=>1, :label=>"Salil"}, {:value=>2, :label=>"Nidhin"}]

answered Sep 19, 2012 at 9:00

Salil

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4 Comments

Nidhin Bose J. Over a year ago

thanks.how can i make it value: <corresponding id> unlike :value => <corresponding id> in your answer

Salil Over a year ago

In Ruby 1.9.3 {:value=>1} == {value:1} Try yourself from irb then type {value:1} and you will get {:value=>1}

Salil Over a year ago

In that case you can't get an hash like above.Just curious why you want such hash?

Nidhin Bose J. Over a year ago

i am trying to implement something like this link

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