Methods available to versioned ActiveRecord::Base instances in order to manage changes used for version creation.
Collects an array of changes from a record’s versions between the given
range and compiles them into one summary hash of changes. The
from and to arguments can each be either a
version number, a symbol representing an association proxy method, a string
representing a version tag or a version object itself.
# File lib/vestal_versions/changes.rb, line 22 def changes_between(from, to) from_number, to_number = versions.number_at(from), versions.number_at(to) return {} if from_number == to_number chain = versions.between(from_number, to_number).reject(&:initial?) return {} if chain.empty? backward = from_number > to_number backward ? chain.pop : chain.shift unless from_number == 1 || to_number == 1 chain.inject({}) do |changes, version| changes.append_changes!(backward ? version.changes.reverse_changes : version.changes) end end