module Sequel::Postgres::ExtendedDateSupport::DatasetMethods

Private Instance Methods

literal_date(date) click to toggle source

Handle BC Date objects.

Calls superclass method
# File lib/sequel/extensions/pg_extended_date_support.rb, line 178
def literal_date(date)
  if date < DATE_YEAR_1
    date <<= ((date.year) * 24 - 12)
    date.strftime("'%Y-%m-%d BC'")
  else
    super
  end
end
literal_datetime(date) click to toggle source

Handle BC DateTime objects.

Calls superclass method
# File lib/sequel/extensions/pg_extended_date_support.rb, line 188
def literal_datetime(date)
  if date < DATETIME_YEAR_1
    date <<= ((date.year) * 24 - 12)
    date = db.from_application_timestamp(date)
    minutes = (date.is_a?(DateTime) ? date.offset * 1440 : date.utc_offset/60).to_i
    date.strftime("'%Y-%m-%d %H:%M:%S.%N#{format_timestamp_offset(*minutes.divmod(60))} BC'")
  else
    super
  end
end
literal_other_append(sql, v) click to toggle source

Handle Date::Infinity values

Calls superclass method
# File lib/sequel/extensions/pg_extended_date_support.rb, line 200
def literal_other_append(sql, v)
  if v.is_a?(Date::Infinity)
    sql << (v > 0 ? "'infinity'" : "'-infinity'")
  else
    super
  end
end
literal_time(time) click to toggle source

Work around JRuby bug #4822 in Time#to_datetime for times before date of calendar reform

Calls superclass method
# File lib/sequel/extensions/pg_extended_date_support.rb, line 224
def literal_time(time)
  if time < TIME_YEAR_1
    dt = DateTime.parse(super)
    # Work around JRuby bug #5191
    dt >>= 12 if JRUBY_VERSION == '9.2.0.0'
    literal_datetime(dt)
  else
    super
  end
end
type_convertor(map, meta, type, i) click to toggle source

Use non-JDBC parsing as JDBC parsing doesn't work for BC dates/timestamps.

Calls superclass method
# File lib/sequel/extensions/pg_extended_date_support.rb, line 214
def type_convertor(map, meta, type, i)
  case type
  when *CONVERT_TYPES
    db.oid_convertor_proc(meta.getField(i).getOID)
  else
    super
  end
end