Module: DateHelper

Included in:
StackFu::Commands::ListCommand
Defined in:
lib/stackfu/date_helper.rb

Instance Method Summary collapse

Instance Method Details

#display_time_in_words(hash, include_seconds = false, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 63

def display_time_in_words(hash, include_seconds = false, options = {})
  options.symbolize_keys!
  hash.delete(:seconds) if !include_seconds && hash[:minutes]
  # Remove all the values that are nil.
  time_measurements = ["years",
                       "months",
                       "weeks",
                       "days",
                       "hours",
                       "minutes",
                       "seconds" ].delete_if do |key|
    hash[key].nil? || hash[key].zero? || 
    # Remove the keys that we don't want.
    (!options[:except].nil? && options[:except].include?(key)) ||
    # keep the keys we only want.
    (options[:only] && !options[:only].include?(key))
  end
  
  options.delete(:except)
  options.delete(:only)
  output = []
  time_measurements.each do |key|
    name = hash[key] > 1 ? key : key.singularize
    output += ["#{hash[key]} #{name}"]
  end
  
  # maybe only grab the first few values
  if options[:precision]
    output = output[0...options[:precision]]
    options.delete(:precision)
  end


  output.to_sentence(options)
end

#distance_of_time(seconds, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 59

def distance_of_time(seconds, options = {})
  display_time_in_words(distance_of_time_hash(seconds), options)
end

#distance_of_time_hash(distance, from_time = nil, to_time = nil, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 10

def distance_of_time_hash(distance, from_time = nil, to_time = nil, options={})
  output = HashWithIndifferentAccess.new
  from_time ||= Time.now
  to_time ||= from_time + distance.seconds
  while distance > 0
    if distance < 1.minute
      output["seconds"] = distance.to_i
      distance = 0
    elsif distance < 1.hour
      output["minutes"], distance = distance.divmod(1.minute)
    elsif distance < 1.day
      output["hours"], distance = distance.divmod(1.hour)
    elsif distance < 28.days
      output["days"], distance = distance.divmod(1.day)
      # Time has to be greater than a month
    else
      smallest, largest = from_time < to_time ? [from_time, to_time] : [to_time, from_time]   
    
      months = (largest.year - smallest.year) * 12 + (largest.month - smallest.month)
      years, months = months.divmod(12)
    
      days = largest.day - smallest.day
      
      # Will otherwise incorrectly say one more day if our range goes over a day. 
      days -= 1 if largest.hour < smallest.hour
    
      if days < 0
        # Convert the last month to days and add to total
        months -= 1
        last_month = largest.advance(:months => -1)
        days += Time.days_in_month(last_month.month, last_month.year)
      end
    
      if months < 0
        # Convert a year to months
        years -= 1
        months += 12
      end
    
      output["years"] = years
      output["months"] = months
      output["days"] = days
    
      total_days, distance = distance.divmod(1.day)
    end
  end
  output
end

#distance_of_time_in_percent(from_time, current_time, to_time, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 105

def distance_of_time_in_percent(from_time, current_time, to_time, options = {})
  options[:precision] ||= 0
  distance = to_time - from_time
  number_with_precision(((current_time - from_time) / distance) * 100, options).to_s + "%"
end

#distance_of_time_in_words(from_time, to_time, include_seconds = false, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 99

def distance_of_time_in_words(from_time, to_time, include_seconds = false, options = {})
  return old_distance_of_time_in_words(from_time, to_time, include_seconds, options) if options.delete(:vague)
  hash = distance_of_time_in_words_hash(from_time, to_time, options)
  display_time_in_words(hash, include_seconds, options)
end

#distance_of_time_in_words_hash(from_time, to_time, options = {}) ⇒ Object 



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# File 'lib/stackfu/date_helper.rb', line 2

def distance_of_time_in_words_hash(from_time, to_time, options={})
  from_time = from_time.to_time if from_time.respond_to?(:to_time)
  to_time = to_time.to_time if to_time.respond_to?(:to_time)
  
  distance = (from_time - to_time).abs
  distance_of_time_hash(distance, from_time, to_time, options)
end