Class: RandomPerson::Choice

Inherits:
Object
  • Object
show all
Defined in:
lib/randomperson/choice.rb

Constant Summary collapse

@@available_classes = 
Set.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(h = {}) ⇒ Choice

Initialize the class with the parameters for the population you want.

Examples:

choice = RandomPerson::Choice.new( {gender_ratio: [3,5] , age_lower:16, age_upper:35 } )



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# File 'lib/randomperson/choice.rb', line 18

def initialize( h={} )
  @gender_ratio = h[:gender_ratio] || [1,1] #default
  @age_lower = h[:age_lower] || 0
  @age_upper = h[:age_upper] || 100

  load_names
  
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

tribe, gender, position



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# File 'lib/randomperson/choice.rb', line 38

def method_missing( name, *args )
  return super( name, *args ) unless name.to_s =~ /^add/  
  words = name.to_s.split( "_" )
  words.shift #get rid of the "add"
  
  #get the negations prepended with "not", then lop it off"
  nots = words.select{ |w| w =~ /^not/ }.map {|s| s[3..-1] }
  #get just the positives
  words.reject! {|w| w =~ /^not/ }
  
  #TODO: check the beginning of each word has an uc letter
  
  #get a set of nots
  n = nots.map{|word| @@available_classes.classify_true(word)}.fold(:&)
  #get a set of wanteds
  cs = words.map{|word| @@available_classes.classify_true(word)}.fold(:&)
  
  cs = cs - n unless n.nil? #remove nots from wanteds
  
  cs.each do |c|
    require c
    fn = File.basename( c, File.extname( c ) ) #remove the extension
    fn = 'RandomPerson::Names::' + fn
    addklass( fn, %w{ Male First } )
    addklass( fn, %w{ Female First } )
    addklass( fn, %w{ Last } )
    addklass( fn, %w{ Prefix } )
    addklass( fn, %w{ Suffix } )
  end
end

Instance Attribute Details

#age_lower ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def age_lower
  @age_lower
end

#age_upper ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def age_upper
  @age_upper
end

#femalefirst ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def femalefirst
  @femalefirst
end

#gender_ratio ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def gender_ratio
  @gender_ratio
end

#last ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def last
  @last
end

#malefirst ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def malefirst
  @malefirst
end

#prefix ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def prefix
  @prefix
end

#suffix ⇒ Object

,:age_ratio



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# File 'lib/randomperson/choice.rb', line 6

def suffix
  @suffix
end

Instance Method Details

#addklass(fn, ps) ⇒ Object 



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# File 'lib/randomperson/choice.rb', line 70

def addklass( fn, ps )
  if ps.map { |p| fn =~ /#{p}/ }.all?
    instance_variable_set( "@#{ps.join.downcase}", qualified_const_get(fn).new )
  end
end

#available_classes ⇒ Object 



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# File 'lib/randomperson/choice.rb', line 8

def available_classes
  @@available_classes
end

#load_names(patterns = ['*.rb']) ⇒ Object 



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# File 'lib/randomperson/choice.rb', line 27

def load_names( patterns=['*.rb'] )
  lib_dir = File.dirname(__FILE__)
  patterns.each do |pat|
    full_pattern = File.join( lib_dir, 'Names', pat )
    Dir.glob( full_pattern ).each do |file|
      @@available_classes << file
    end
  end
end

#reset_all ⇒ Object

set all parameters and nameclasses for this instance to nil



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# File 'lib/randomperson/choice.rb', line 86

def reset_all
  reset_names
  reset_parameters
end

#reset_names ⇒ Object

set all the nameclasses for this instance to nil



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# File 'lib/randomperson/choice.rb', line 77

def reset_names
  @suffix = nil
  @prefix = nil
  @last = nil
  @malefirst = nil
  @femalefirst = nil
end

#reset_parameters ⇒ Object

set the age and gender parameters for this instance to nil



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# File 'lib/randomperson/choice.rb', line 92

def reset_parameters
  @age_upper = nil
  @age_lower = nil
  @gender_ratio  = nil
end