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Contents
module DBF
module ColumnType
class Base
ENCODING_ARGS = [
Encoding.default_external,
{undef: :replace, invalid: :replace}
]
attr_reader :decimal, :encoding
def initialize(decimal, encoding)
@decimal = decimal
@encoding = encoding
end
end
class Nil < Base
def type_cast(value)
nil
end
end
class Number < Base
def type_cast(value)
return nil if value.strip.empty?
@decimal.zero? ? value.to_i : value.to_f
end
end
class Currency < Base
def type_cast(value)
(value.unpack('q<')[0] / 10_000.0).to_f
end
end
class SignedLong < Base
def type_cast(value)
value.unpack('l<')[0]
end
end
class Float < Base
def type_cast(value)
value.to_f
end
end
class Double < Base
def type_cast(value)
value.unpack('E')[0]
end
end
class Boolean < Base
def type_cast(value)
value.strip =~ /^(y|t)$/i ? true : false
end
end
class Date < Base
def type_cast(value)
v = value.tr(' ', '0')
v !~ /\S/ ? nil : ::Date.parse(v)
rescue
nil
end
end
class DateTime < Base
def type_cast(value)
days, msecs = value.unpack('l2')
secs = (msecs / 1000).to_i
::DateTime.jd(days, (secs / 3600).to_i, (secs / 60).to_i % 60, secs % 60)
rescue
nil
end
end
class Memo < Base
def type_cast(value)
if encoding && !value.nil?
value.force_encoding(@encoding).encode(*ENCODING_ARGS)
else
value
end
end
end
class General < Base
def type_cast(value)
value
end
end
class String < Base
def type_cast(value)
value = value.strip
@encoding ? value.force_encoding(@encoding).encode(*ENCODING_ARGS) : value
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems