Rails, model with column of integer array

Question

I have added created new migration:

class AddColumnsToDiscipline < ActiveRecord::Migration
 def change
   add_column :disciplines, :days, :integer, array: true
 end
end

Then I have run migration.

In my seed.rb file I have added this

t.disciplines.create(name: Company.name, days: [1, 2, 3])

After when I run rake db:seed, When I run my rails console all created models days attribute has nil value. Whad did I miss?

try this with default value and not integer add_column :disciplines, :days, :text, array: true, default: [] in your migration file and then run rake db:seed command — Sonalkumar sute
– Sonalkumar sute, Commented Apr 14, 2015 at 9:03

Sonalkumar sute · Accepted Answer · 2015-04-14 11:35:45Z

7

try this with default option

add_column :disciplines, :days, :integer, array: true, default: []

in your migration file and then

run rake db:seed

EDIT

Try as

add_column :disciplines, :days, :integer, array: true, default: '{}'

and change create to create!

t.disciplines.create!(name: Company.name, days: [1, 2, 3])

If you are using strong parameters have you permitted days in your controller

edited Apr 14, 2015 at 11:35

answered Apr 14, 2015 at 9:19

Sonalkumar sute

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7 Comments

Mr.D Over a year ago

I have added default: [] and remigrated my database. Then run seed, still gives me nil

Sonalkumar sute Over a year ago

@Mr.D Try as add_column :disciplines, :days, :integer, array: true, default: '{}'

Mr.D Over a year ago

I have tried this changed [] to '{}'. Still the same

Sonalkumar sute Over a year ago

@Mr.D - are you using strong parameters?

Mr.D Over a year ago

I'm Using rails 4. That means yes?

|

jon snow · Accepted Answer · 2015-04-14 09:50:50Z

0

This issue was opened in rails public repo. follow this.

rails 4-0-stable have come with that fix. Maybe you need to update the rails version :D.

edited Apr 14, 2015 at 9:50

answered Apr 14, 2015 at 9:07

jon snow

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2 Comments

Mr.D Over a year ago

I have rails 4.1 version

jon snow Over a year ago

oops. may other can help you now.

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