Module: Doodle::DataTypes

Defined in:
lib/doodle/datatypes.rb

Instance Method Summary collapse

Instance Method Details

#boolean(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 26

def boolean(name, params = { }, &block)
  define name, params, block, { } do
    must "be true or false" do |v|
      [true, false].include?(v)
    end
    from String, Symbol do |v|
      case v.to_s
      when /^(yes|true|on)$/
        true
      when /^(no|false|off)$/
        false
      else
        v
      end
    end
  end
end

#date(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 104

def date(name, params = { }, &block)
  define name, params, block, { :kind => Date } do
    from String do |s|
      Date.parse(s)
    end
    from Array do |y,m,d|
      Date.new(y, m, d)
    end
    from Integer do |jd|
      Date.new(*Date.jd_to_civil(jd))
    end
  end
end

#email(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 94

def email(name, params = { }, &block)
  # for max length, see http://www.imc.org/ietf-fax/archive2/msg01578.html
  # 384 = 128+1+255
  string(name, { :max => 384 }.merge(params), &block).instance_eval do
    must "be valid email address" do |s|
      s =~ RFC822::EmailAddress
    end
  end
end

#integer(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 14

def integer(name, params = { }, &block)
  define name, params, block, { :kind => Integer } do
    from Float do |n|
      n.to_i
    end
    from String do |n|
      n =~ /[0-9]+(.[0-9]+)?/ or raise ArgumentError, "#{name} must be numeric"
      n.to_i
    end
  end
end

#string(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 52

def string(name, params = { }, &block)
  # must extract non-standard attributes before processing with
  # define otherwise causes UnknownAttribute error in Attribute definition
  if params.key?(:max)
    max = params.delete(:max)
  end
  if params.key?(:size)
    size = params.delete(:size)
    # size should be a Range
    size.kind_of?(Range) or raise ArgumentError, "#{name}: size should be a Range", [caller[-1]]
  end
  define name, params, block, { :kind => String } do
    from String do |s|
      s
    end
    from Integer do |i|
      i.to_s
    end
    from Symbol do |s|
      s.to_s
    end
    if max
      must "be <= #{max} characters" do |s|
        s.size <= max
      end
    end
    if size
      must "have size from #{size} characters" do |s|
        size.include?(s.size)
      end
    end
  end
end

#symbol(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 44

def symbol(name, params = { }, &block)
  define name, params, block, { :kind => Symbol } do
    from String do |s|
      s.to_sym
    end
  end
end

#uri(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 86

def uri(name, params = { }, &block)
  define name, params, block, { :kind => URI } do
    from String do |s|
      URI.parse(s)
    end
  end
end

#version(name, params = { }, &block) ⇒ Object 



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# File 'lib/doodle/datatypes.rb', line 118

def version(name, params = { }, &block)
  define name, params, block, { :kind => String } do
    must "be of form n.n.n" do |str|
      str =~ /\d+\.\d+.\d+/
    end
    from Array do |a|
      a.size == 3 or raise ArgumentError, "#{name}: version array argument must contain exactly 3 elements", [caller[-1]]
      a.join('.')
    end
  end
end