Sha256: 15466ec27f11882696f7cb6f85510f269d3556d1d1505361756993b08e76963a
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Size: 1.99 KB
Versions: 6
Compression:
Stored size: 1.99 KB
Contents
module PaperTrail
module Cleaner
# Destroys all but the most recent version(s) for items on a given date (or on all dates). Useful for deleting drafts.
#
# Options:
# :keeping An `integer` indicating the number of versions to be kept for each item per date.
# Defaults to `1`.
# :date Should either be a `Date` object specifying which date to destroy versions for or `:all`,
# which will specify that all dates should be cleaned. Defaults to `:all`.
# :item_id The `id` for the item to be cleaned on, or `nil`, which causes all items to be cleaned.
# Defaults to `nil`.
def clean_versions!(options = {})
options = {:keeping => 1, :date => :all}.merge(options)
gather_versions(options[:item_id], options[:date]).each do |item_id, versions|
versions.group_by { |v| v.created_at.to_date }.each do |date, versions| # now group the versions by date and iterate through those
versions.pop(options[:keeping]) # remove the number of versions we wish to keep from the collection of versions prior to destruction
versions.map(&:destroy)
end
end
end
private
# Returns a hash of versions grouped by the `item_id` attribute formatted like this: {:item_id => PaperTrail::Version}.
# If `item_id` or `date` is set, versions will be narrowed to those pointing at items with those ids that were created on specified date.
def gather_versions(item_id = nil, date = :all)
raise "`date` argument must receive a Timestamp or `:all`" unless date == :all || date.respond_to?(:to_date)
versions = item_id ? PaperTrail::Version.where(:item_id => item_id) : PaperTrail::Version
versions = versions.between(date.to_date, date.to_date + 1.day) unless date == :all
versions = PaperTrail::Version.all if versions == PaperTrail::Version # if versions has not been converted to an ActiveRecord::Relation yet, do so now
versions.group_by(&:item_id)
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems