foodsoft/app/models/workgroup.rb

70 lines
2.3 KiB
Ruby

# encoding: utf-8
class Workgroup < Group
has_many :tasks
# returns all non-finished tasks
has_many :open_tasks, :class_name => 'Task', :conditions => ['done = ?', false], :order => 'due_date ASC'
validates_presence_of :task_name, :weekday, :task_required_users, :next_weekly_tasks_number,
:if => :weekly_task
validates_numericality_of :next_weekly_tasks_number, :greater_than => 0, :less_than => 21, :only_integer => true,
:if => :weekly_task
validates_length_of :task_description, maximum: 250
validate :last_admin_on_earth, :on => :update
before_destroy :check_last_admin_group
def self.weekdays
[["Montag", "1"], ["Dienstag", "2"], ["Mittwoch","3"],["Donnerstag","4"],["Freitag","5"],["Samstag","6"],["Sonntag","0"]]
end
# Returns an Array with date-objects to represent the next weekly-tasks
def next_weekly_tasks
# our system starts from 0 (sunday) to 6 (saturday)
# get difference between groups weekday and now
diff = self.weekday - Time.now.wday
if diff >= 0
# weektask is in current week
nextTask = diff.day.from_now
else
# weektask is in the next week
nextTask = (diff + 7).day.from_now
end
# now generate the Array
nextTasks = Array.new
next_weekly_tasks_number.times do
nextTasks << nextTask.to_date
nextTask = 1.week.from_now(nextTask)
end
return nextTasks
end
def task_attributes(date)
{
:name => task_name,
:description => task_description,
:due_date => date,
:required_users => task_required_users,
:duration => task_duration,
:weekly => true
}
end
protected
# Check before destroy a group, if this is the last group with admin role
def check_last_admin_group
if role_admin && Workgroup.where(:role_admin => true).size == 1
raise "Die letzte Gruppe mit Admin-Rechten darf nicht gelöscht werden"
end
end
# add validation check on update
# Return an error if this is the last group with admin role and role_admin should set to false
def last_admin_on_earth
if !role_admin && Workgroup.where(:role_admin => true, :id.ne => id).empty?
errors.add(:role_admin, "Der letzten Gruppe mit Admin-Rechten darf die Admin-Rolle nicht entzogen werden")
end
end
end