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Bart van Zon
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Location: | Netherlands |
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Hosted by: | GitHub, INC. |
Registrar: | NameCheap, Inc. |
Subnetworks: | 185.199.108.153, 185.199.109.153, 185.199.110.153, 185.199.111.153 |
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Bartvanzon.com popular pages to visit
Bart van Zon - The rants of a software developer
Bart van Zon's personal blog
Bart van Zon
2013-11-21T15:56:00+00:00
http://www.bartvanzon.com/blog/2013/11/21/rails-tree-structure
<p>A couple of days ago I had to make a documents/folder structure for an app. The
idea was that there's tw...
Bart van Zon - The rants of a software developer
app/validators/category
parentvalidator.rb
Class CategoryParentValidator < ActiveModel::Validator
def validate(record)
if !record.new_record? && record.parent_id == record.id
record.errors...