Class: Query::TimeAccumulator

Inherits:
Object
  • Object
show all
Defined in:
lib/query/time_accumulator.rb

Overview

singleton class to calculate time values for a given set of tasks

Class Method Summary collapse

Class Method Details

.get_hours_beyond(tasks, next_time_frame) ⇒ Float

method to calculate the working hours of tasks starting during the requested time interval, but ending after

Parameters:

  • tasks (Array) —

    the tasks starting during the time interval

  • next_time_frame (Time) —

    the end time of the interval

Returns:

  • (Float) —

    the sum of the working hours



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# File 'lib/query/time_accumulator.rb', line 56

def self.get_hours_beyond(tasks, next_time_frame)
  total = 0.0
  tasks.each { |task|
    total += next_time_frame - task.start_time
  }

  total = (total / 3600).round(2)
end

.get_hours_during(tasks) ⇒ Float

method to calculate the working hours of tasks occurring during the requested time interval

Parameters:

  • tasks (Array) —

    the tasks occurring during the time interval

Returns:

  • (Float) —

    the sum of the working hours



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# File 'lib/query/time_accumulator.rb', line 28

def self.get_hours_during(tasks)
  total = 0.0
  tasks.each { |task|
    total += task.end_time - task.start_time
  }

  total = (total / 3600).round(2)
end

.get_hours_into(tasks, time_frame) ⇒ Float

method to calculate the working hours of tasks ending during the requested time interval, but starting before

Parameters:

  • tasks (Array) —

    the tasks ending during the time interval

  • time_frame (Time) —

    the start time of the interval

Returns:

  • (Float) —

    the sum of the working hours



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# File 'lib/query/time_accumulator.rb', line 42

def self.get_hours_into(tasks, time_frame)
  total = 0.0
  tasks.each { |task|
    total += task.end_time - time_frame
  }

  total = (total / 3600).round(2)
end

.get_interval_worktime(tasks, start_time, end_time, time_frame) ⇒ Hash

method to calculate the work time in the given time period

Parameters:

  • tasks (Hash) —

    the collected tasks occuring in the time interval

  • start_time (Time) —

    the start time of the time interval

  • end_time (Time) —

    the end time of the time interval

  • time_frame (Integer) —

    the time of the interval in hours

Returns:

  • (Hash) —

    a hash containing all time values for the considered intervals



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# File 'lib/query/time_accumulator.rb', line 13

def self.get_interval_worktime(tasks, start_time, end_time, time_frame)
  times = {
    :during => get_hours_during(tasks[:during]),
    :over => (tasks[:over].size > 0 ? time_frame : 0),
    :into => get_hours_into(tasks[:into], start_time),
    :beyond => get_hours_beyond(tasks[:beyond], end_time)
  }

  return times
end