Class: DBF::Record

Inherits:

Object

• Object
• DBF::Record

show all

Defined in:

lib/dbf/record.rb

Overview

Instance Method Summary (collapse)

• - (Boolean) ==(other)

  Equality.

• - (Object) [](key)

  Reads attributes by column name.

• - (Hash) attributes
• - (Record) initialize(data, columns, version, memo) constructor

  Initialize a new DBF::Record.

• - (Boolean) match?(options)

  Do all search parameters match?.

• - (Object) method_missing(method, *args)
• - (Boolean) respond_to?(method, *args)
• - (Array) to_a

  Maps a row to an array of values.

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# File 'lib/dbf/record.rb', line 10

def initialize(data, columns, version, memo)
  @data = StringIO.new(data)
  @columns, @version, @memo = columns, version, memo
end

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# File 'lib/dbf/record.rb', line 58

def method_missing(method, *args)
  if index = column_names.index(method.to_s)
    attributes[@columns[index].name]
  else
    super
  end
end

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# File 'lib/dbf/record.rb', line 19

def ==(other)
  other.respond_to?(:attributes) && other.attributes == attributes
end

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# File 'lib/dbf/record.rb', line 39

def [](key)
  key = key.to_s
  if attributes.has_key?(key)
    attributes[key]
  elsif index = column_names.index(key)
    attributes[@columns[index].name]
  end
end

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# File 'lib/dbf/record.rb', line 49

def attributes
  @attributes ||= Hash[@columns.map {|column| [column.name, init_attribute(column)]}]
end

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# File 'lib/dbf/record.rb', line 34

def match?(options)
  options.all? {|key, value| self[key] == value}
end

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# File 'lib/dbf/record.rb', line 53

def respond_to?(method, *args)
  return true if column_names.include?(method.to_s)
  super
end

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# File 'lib/dbf/record.rb', line 26

def to_a
  @columns.map {|column| attributes[column.name]}
end