Class: Array

Inherits:
Object show all
Defined in:
lib/overload/array.rb,
lib/overload/blank.rb

Instance Method Summary collapse

Instance Method Details

#all ⇒ Object

for easier Sequel query



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# File 'lib/overload/array.rb', line 57

def all
  self
end

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/overload/blank.rb', line 37

def blank?
  self.length == 0
end

#last=(what) ⇒ Object

set last element of an array



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# File 'lib/overload/array.rb', line 21

def last= what
  self[self.length-1] = what
end

#random_by_string(string) ⇒ Object

will return fixed element for any random string



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# File 'lib/overload/array.rb', line 62

def random_by_string string
  i = string.split('').map{ |_| _.ord }.sum
  self[i % length]
end

#to_csv ⇒ Object

convert list of lists to CSV



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# File 'lib/overload/array.rb', line 3

def to_csv
  ret = []
  for row in self
  	add = []
  	for el in row
  		add << '"'+el.to_s.gsub(/\s+/,' ').gsub(/"/,"''")+'"'
   end
   ret.push(add.join(';'))
  end
  ret.join("\n")
end

#to_sentence(opts = {}) ⇒ Object

convert list to sentence, Rails like



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# File 'lib/overload/array.rb', line 26

def to_sentence opts={}
  opts[:words_connector]     ||= ', '
  opts[:two_words_connector] ||= ' and '
  opts[:last_word_connector] ||= ', and '

  len = self.length

  return '' if len == 0
  return self[0] if len == 1
  return self.join(opts[:two_words_connector]) if len == 2

  last_word = self.pop

  self.join(opts[:words_connector]) + opts[:last_word_connector] + last_word
end

#toggle(element) ⇒ Object

toggle existance of an element in array and return true when one added



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# File 'lib/overload/array.rb', line 43

def toggle element
  self.uniq!
  self.compact!

  if self.include?(element)
    self.delete(element)
    false
  else
    self.push(element)
    true
  end
end

#wrap(name, opts = {}) ⇒ Object

wrap all list elements with a tag



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# File 'lib/overload/array.rb', line 16

def wrap name, opts={}
  map{ |el| opts.tag(name, opts) }
end