Note: Instead of using the method in this card, you probably want to use ActiveType's nested attributes Show archive.org snapshot which is a much more refined way of doing this.

The attached Modularity Show archive.org snapshot trait allows you to accept nested attributes for a record that is not an association, e.g.:

    class Site < ActiveRecord::Base
      
      def home_page
        @home_page ||= Page.find_by_name('home')
      end
      
      does 'accept_nested_attributes_for_member', :home_page
      
    end

It has some limitations:

Only works for singular member references ("belongs to"), not for a collection of references ("has many")
No support for deletion (but could be patched in)
You need to build this record yourself (obviously)

accept_nested_attributes_for_member_trait.rb

Henning Koch

makandra.de

Say thanks

Last edit

2023-09-25

Felix Eschey

Attachments

accept_nested_attributes_for_member_trait.rb

Keywords

activerecord, rails

License

Source code in this card is licensed under the MIT License.

Async control flow in JavaScript: Promises, Microtasks, async/await

Slides for Henning's talk on Sep 21st 2017.

Understanding sync vs. async control flow

Talking to synchronous (or "blocking") API

print('script start')
html = get('/foo')
print(html)
print('s...

Delivering Carrierwave attachments to authorized users only

Preparation

To attach files to your records, you will need a new database column representing the filename of the file. To do this, add a new migration (rails g migration <name>) with the following content:

class AddAttachmentToNotes...

Posted by Henning Koch to makandra dev (2012-08-30 14:59)

Accept nested attributes for a record that is not an association

Related cards:

Summary

Understanding sync vs. async control flow

Talking to synchronous (or "blocking") API

Preparation

Introduction