Class: Taskr::Models::Task

Inherits:
Base
  • Object
show all
Defined in:
lib/taskr/models.rb

Instance Method Summary collapse

Instance Method Details

#next_trigger_time ⇒ Object 



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# File 'lib/taskr/models.rb', line 131

def next_trigger_time
  # TODO: need to figure out how to calulate trigger_time for these.. for now return :unknown
  return :unknown unless schedule_method == 'at' || schedule_method == 'in'
      
  if schedule_method == 'in'
    return (created_on || Time.now) + Taskr.scheduler.duration_to_f(schedule_when)
  end
  
  # Time parsing code from Rails
  time_hash = Date._parse(schedule_when)
  time_hash[:sec_fraction] = ((time_hash[:sec_fraction].to_f % 1) * 1_000_000).to_i
  time_array = time_hash.values_at(:year, :mon, :mday, :hour, :min, :sec, :sec_fraction)
  # treat 0000-00-00 00:00:00 as nil
  Time.send(Base.default_timezone, *time_array) rescue DateTime.new(*time_array[0..5]) rescue nil
end

#prepare_action ⇒ Object 



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# File 'lib/taskr/models.rb', line 101

def prepare_action
  if task_actions.length == 1
    ta = task_actions.first
    
    parameters = {}
    ta.action_parameters.each{|p| parameters[p.name] = p.value}
    
    action = (ta.action_class.kind_of?(Class) ? ta.action_class : ta.action_class.constantize).new(parameters)
    action.task = self
    action.task_action = ta
  elsif task_actions.length > 1
    action = Taskr::Actions::Multi.new
    task_actions.each do |ta|
      parameters = {}
      ta.action_parameters.each{|p| parameters[p.name] = p.value}
      
      a = (ta.action_class.kind_of?(Class) ? ta.action_class : ta.action_class.constantize).new(parameters)
      a.task = self
      a.task_action = ta
      
      action.actions << a 
    end
    action.task = self
  else
    raise "Task #{name.inspect} has no actions!"
  end
  
  action
end

#schedule!(scheduler = Taskr.scheduler) ⇒ Object 



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# File 'lib/taskr/models.rb', line 42

def schedule!(scheduler = Taskr.scheduler)
  case schedule_method
  when 'cron'
    method = :schedule
  when 'at'
    method = :schedule_at
  when 'in'
    method = :schedule_in
  when 'every'
    method = :schedule_every
  end
  
  if method == :schedule_at || method == :schedule_in
    t = next_trigger_time
    method = :schedule_at
    if t < Time.now
      $LOG.warn "Task #{name.inspect} will not be scheduled because its trigger time is in the past (#{t.inspect})."
      return nil
    end
  end
  
  $LOG.debug "Scheduling task #{name.inspect}: #{self.inspect}"
  
  if self.new_record? # Need to distinguish between the edit/create cases. "Edit" needs to reload the task_actions or nothing works; "Create" needs NOT to relaod the actions, or the validations kick in and nothing works. FIXME!!!!!
    if task_actions.length > 0
      action = prepare_action
    else
      $LOG.warn "Task #{name.inspect} has no actions and as a result will not be scheduled!"
      return false
    end
  else
    if task_actions(true).length > 0
      action = prepare_action
    else
      $LOG.warn "Task #{name.inspect} has no actions and as a result will not be scheduled!"
      return false
    end
  end
  
  job_id = scheduler.send(method, t || schedule_when, :schedulable => action)
  
  if job_id
    $LOG.debug "Task #{name.inspect} scheduled with job id #{job_id}"
  else
    $LOG.error "Task #{name.inspect} was NOT scheduled!"
    return nil
  end
  
  self.update_attribute(:scheduler_job_id, job_id)
  if method == :schedule_at || method == :schedule_in
    job = scheduler.get_job(job_id)
    at = job.schedule_info
    self.update_attribute(:schedule_when, at)
    self.update_attribute(:schedule_method, 'at')
  end
  
  return job_id
end

#to_s ⇒ Object 



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# File 'lib/taskr/models.rb', line 148

def to_s
  "#{name.inspect}@#{schedule_when}"
end