counter_culture_basic_usage

🎯 Basic Usage: Auto-Updating Counters

With Counter Culture configured, any creation or deletion of a Comment will automatically update the comments_count on its associated Post. No manual callbacks needed!

# creates a post with zero comments
post = Post.create!(title: 'Hello Counter')

# create a comment and auto-increment post.comments_count
comment = post.comments.create!(body: 'Great post!')
puts post.reload.comments_count  # => 1

# deleting the comment auto-decrements the counter
comment.destroy
puts post.reload.comments_count  # => 0

You can also handle multiple associations or custom column names by passing options:

class Reply < ApplicationRecord
  belongs_to :comment
  counter_culture :comment, column_name: 'replies_count'
end