gem 'logga'

class Thing < ApplicationRecord
  # Optional author accessor. See #author
  attr_accessor :author

  # Association to :log_entries, which the loggable object must response to for logging.
  has_many :log_entries, as: :loggable, dependent: :destroy

  add_log_entries_for(
    :create, # Log on object create
    :delete, # Log on object delete
    :update, # Log on object update
    allowed_fields: [], # set an array of fields allowed to be logged
    exclude_fields: [], # set an array of fields excluded from logging. Ignored if allowed_fields is set
    fields: {}, # Custom messages for fields. See #fields
    to: nil
  )
end

thing.author = { id: "1", name: "Barry", type: "User" }

add_log_entries_for(
  :update,
  fields: {
    name: lambda { |record, field, old_value, new_value|
      "Name changed from #{old_value} to #{new_value}"
    }
  }
)

add_log_entries_for(
  :create,
  fields: {
    created_at: lambda { |record|
      "Created object with id: #{record.id}"
    }
  }
)

Logga.configure do |config|
  config.enabled = true
  config.excluded_fields = [] # Default array of excluded fields i.e. [:id] to ignore all :id fields for every object
  config.excluded_suffixes = [] # Array of excluded suffixes i.e. [:_id] to ignore all fields that end in :_id for every object
end

Logga.configure do |config|
  config.excluded_fields = [:id] # Don't log any id changes
  config.excluded_suffixes = [_id] # Don't log any column that ends in _id
end