ruby-on-railsrubyruby-1.9.3

Get records with key=id

How to get records from the database with key=id

items = Item.all

Instead of:

items = {{"id"=>1, "title"=>"A"},
{"id"=>5, "title"=>"B"}}

How to get?

items = {"1"=>{"id"=>1, "title"=>"A"},
"5"=>{"id"=>5, "title"=>"B"}}
Solution

  • For Ruby >= 2.0 or Ruby < 2.0 with backports:

    Item.all.map { |r| [r.id, r.attributes] }.to_h

    For Ruby < 2.0 without backports:

    Hash[Item.all.map { |r| [r.id, r.attributes] }]