Sha256: 358e39eef173fae595c0f3e2f9fc458d25784110ce4cf30045808dc86035c4ae
Contents?: true
Size: 1.63 KB
Versions: 9
Compression:
Stored size: 1.63 KB
Contents
module PaperTrail
# Represents the history of a single record.
# @api private
class RecordHistory
# @param versions - ActiveRecord::Relation - All versions of the record.
# @param version_class - Class - Usually PaperTrail::Version,
# but it could also be a custom version class.
# @api private
def initialize(versions, version_class)
@versions = versions
@version_class = version_class
end
# Returns ordinal position of `version` in `sequence`.
# @api private
def index(version)
sequence.to_a.index(version)
end
private
# Returns `@versions` in chronological order.
# @api private
def sequence
if @version_class.primary_key_is_int?
@versions.select(primary_key).order(primary_key.asc)
else
@versions.
select([timestamp, primary_key]).
order(@version_class.timestamp_sort_order)
end
end
# @return - Arel::Attribute - Attribute representing the primary key
# of the version table. The column's data type is usually a serial
# integer (the rails convention) but not always.
# @api private
def primary_key
table[@version_class.primary_key]
end
# @return - Arel::Table - The version table, usually named `versions`, but
# not always.
# @api private
def table
@version_class.arel_table
end
# @return - Arel::Attribute - Attribute representing the timestamp column
# of the version table, usually named `created_at` (the rails convention)
# but not always.
# @api private
def timestamp
table[PaperTrail.timestamp_field]
end
end
end
Version data entries
9 entries across 9 versions & 2 rubygems