https://github.com/kongregate/detached_counter_cache

counter cache that lives in its own table
https://github.com/kongregate/detached_counter_cache

Last synced: 9 days ago
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counter cache that lives in its own table

• Host: GitHub
• URL: https://github.com/kongregate/detached_counter_cache
• Owner: kongregate
• License: mit
• Created: 2016-07-20T22:04:19.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2022-10-31T19:32:28.000Z (about 2 years ago)
• Last Synced: 2024-12-07T20:56:11.358Z (29 days ago)
• Language: Ruby
• Size: 15.6 KB
• Stars: 0
• Watchers: 9
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# detached_counter_cache

[![Build Status](https://travis-ci.org/kongregate/detached_counter_cache.png?branch=master)](https://travis-ci.org/kongregate/detached_counter_cache)

detached_counter_cache is a tool for keeping track of a counter cache that lives in its own table. It works with Rails 4.1 and 4.2, and only MySQL.

## Usage

For example, with `User` and `Comment` classes you may want to cache `user.comments.size`, but don't want to create `comments_count` on `User`.

```ruby

class User < ActiveRecord::Base

  has_many :comments

end

class Comment < ActiveRecord::Base

  belongs_to :user, detached_counter_cache: true

end

```

You'll need to generate a migration that creates your counter cache table.

```ruby

create_table :users_comments_counts, force: true do |t|

  t.integer :user_id, null: false

  t.integer :count, default: 0, null: false

end

```

## Contributors

* [stopdropandrew](https://github.com/stopdropandrew)

* [drewchandler](https://github.com/drewchandler)

* [duncanbeevers](https://github.com/duncanbeevers)

## License

MIT License