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# ActiveRecord custom data type for storing datetimes with timezone information.
# See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11229
require 'active_record/connection_adapters/postgresql_adapter'
module ActiveRecord::ConnectionAdapters::PostgreSQL::OID
# Add the class `DateTimeWithTimeZone` so we can map `timestamptz` to it.
class DateTimeWithTimeZone < DateTime
def type
:datetime_with_timezone
end
end
end
module RegisterDateTimeWithTimeZone
# Run original `initialize_type_map` and then register `timestamptz` as a
# `DateTimeWithTimeZone`.
#
# Apparently it does not matter that the original `initialize_type_map`
# aliases `timestamptz` to `timestamp`.
#
# When schema dumping, `timestamptz` columns will be output as
# `t.datetime_with_timezone`.
def initialize_type_map(mapping = type_map)
super mapping
mapping.register_type 'timestamptz' do |_, _, sql_type|
precision = extract_precision(sql_type)
ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::OID::DateTimeWithTimeZone.new(precision: precision)
end
end
end
class ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
prepend RegisterDateTimeWithTimeZone
# Add column type `datetime_with_timezone` so we can do this in
# migrations:
#
# add_column(:users, :datetime_with_timezone)
#
NATIVE_DATABASE_TYPES[:datetime_with_timezone] = { name: 'timestamptz' }
end
# Ensure `datetime_with_timezone` columns are correctly written to schema.rb
if (ActiveRecord::Base.connection.active? rescue false)
ActiveRecord::Base.connection.send :reload_type_map
end
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