Ruby on Rails multidimensional array-like storage

Question

I'm trying to create a form that has:

TextInput--Skill

DropDown--Years Experience

Using jQuery, I have the input and drop down fields populate if a user has more skills to add. Is it possible to store many sets of skills and their respective years experience in a database entry?

I've been looking into has_many:

Thank you!

Vlad Khomich · Accepted Answer · 2011-04-18 13:10:57Z

1

No need for extra query here (has_many), look into rails serialization:

class User < ActiveRecord::Base
  serialize :preferences, Hash
end

user = User.create(:preferences => { "background" => "black", "display" => "large" })
User.find(user.id).preferences # => { "background" => "black", "display" => "large" }

You can do the same with Array

answered Apr 18, 2011 at 13:10

Vlad Khomich

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2 Comments

stewart715 Over a year ago

Thank you, this makes sense, but I'm confused as to how to change multiple fields into the create method, I think that's where most of my troubles lie.

Vlad Khomich Over a year ago

well, since you're using jquery anyways, you could add the hidden_field to your form and bind the .submit event to it. Once user submits the form, jquery will populate that field with all the [skill, experience] values ( in whatever format you like ). So you'll then have to parse it in your controller

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