Split array. Ruby

Question

Could you help me please with some problem? I have array from database like this

 str = Hiring::Tag.all
  Hiring::Tag Load (0.1ms)  SELECT `hiring_tags`.* FROM `hiring_tags`
=> [#<Hiring::Tag id: 1, name: "tag1", created_at: "2013-12-10 11:44:39", updated_at: "2013-12-10 11:44:39">,
    #<Hiring::Tag id: 2, name: "tag2", created_at: nil, updated_at: nil>,
    #<Hiring::Tag id: 3, name: "tag3", created_at: nil, updated_at: nil>,
    #<Hiring::Tag id: 4, name: "wtf", created_at: "2013-12-11 07:53:04", updated_at: "2013-12-11 07:53:04">,
    #<Hiring::Tag id: 5, name: "new_tag", created_at: "2013-12-11 10:35:48", updated_at: "2013-12-11 10:35:48">]

And I need to split this array like this:

    data:[{id:1,name:'tag1'},{id:2,name:'tag2'},
          {id:3,name:'tag3'},{id:4,name:'wtf'},{id:5,name:'new_tag'}]

Help me please!

It's already answered [Ruby: group an array of ActiveRecord objects in a hash][1] [1]: stackoverflow.com/questions/5490582/… — Pravin Mishra
– Pravin Mishra, Commented Dec 17, 2013 at 11:13

Roman Kiselenko · Accepted Answer · 2013-12-17 11:08:27Z

3

if you use ActiveRecord 4.0

Hiring::Tag.pluck(:id, :name).map{ |id, name| {id: id, name: name} }

answered Dec 17, 2013 at 11:08

Roman Kiselenko

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Damien MATHIEU · Accepted Answer · 2013-12-17 11:03:29Z

1

One possible solution:

Hiring::Tag.all.map {|h| {id: h.id, name: h.name} }

See the documentation for map.

answered Dec 17, 2013 at 11:03

Damien MATHIEU

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Pravin Mishra · Accepted Answer · 2013-12-17 11:16:16Z

0

You can try below code.

Hiring::Tag.all.inject({}) { |h, f| h[f.name.to_sym] = f.value; h }

OR

Hiring::Tag.all.map { |f| [f.name.to_sym, f.value] }]

answered Dec 17, 2013 at 11:16

Pravin Mishra

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