foodsoft/app/models/task.rb

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class Task < ActiveRecord::Base
has_many :assignments, :dependent => :destroy
has_many :users, :through => :assignments
belongs_to :workgroup
scope :non_group, :conditions => { :workgroup_id => nil, :done => false }
scope :done, :conditions => {:done => true}, :order => "due_date DESC"
scope :upcoming, lambda { |*args| {:conditions => ["done = 0 AND due_date = ?", (args.first || 7.days.from_now)]} }
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# form will send user in string. responsibilities will added later
attr_protected :users
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validates :name, :presence => true, :length => { :minimum => 3 }
validates :required_users, :presence => true
validates_numericality_of :duration, :required_users, :only_integer => true, :greater_than => 0
validates_length_of :description, maximum: 250
after_save :update_ordergroup_stats
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def is_assigned?(user)
self.assignments.detect {|ass| ass.user_id == user.id }
end
def is_accepted?(user)
self.assignments.detect {|ass| ass.user_id == user.id && ass.accepted }
end
def enough_users_assigned?
assignments.find_all_by_accepted(true).size >= required_users ? true : false
end
# Get users from comma seperated ids
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# and makes the users responsible for the task
def user_list=(ids)
list = ids.split(",")
new_users = list - users.collect(&:id)
old_users = users.reject { |user| list.include?(user.id) }
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logger.debug "New users: #{new_users}"
logger.debug "Old users: #{old_users}"
self.class.transaction do
# delete old assignments
if old_users.any?
assignments.find(:all, :conditions => ["user_id IN (?)", old_users.collect(&:id)]).each(&:destroy)
end
# create new assignments
new_users.each do |id|
user = User.find(id)
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if user.blank?
errors.add(:user_list)
else
if user == User.current_user
# current_user will accept, when he puts himself to the list of users
self.assignments.build :user => user, :accepted => true
else
# normal assignement
self.assignments.build :user => user
end
end
end
end
end
def user_list
@user_list ||= users.collect(&:id).join(", ")
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end
private
def update_ordergroup_stats
if done
users.each { |u| u.ordergroup.update_stats! if u.ordergroup }
end
end
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end