foodsoft/app/models/task.rb

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class Task < ApplicationRecord
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has_many :assignments, :dependent => :destroy
has_many :users, :through => :assignments
belongs_to :workgroup, optional: true
belongs_to :periodic_task_group, optional: true
belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id', optional: true
scope :non_group, -> { where(workgroup_id: nil, done: false) }
scope :done, -> { where(done: true) }
scope :undone, -> { where(done: false) }
attr_accessor :current_user_id
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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
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validates :done, exclusion: { in: [true] }, if: :periodic?, on: :create
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validates_presence_of :due_date, if: :periodic?
before_save :exclude_from_periodic_task_group, if: :changed?, unless: :new_record?
after_save :update_ordergroup_stats
# Find all tasks, for which the current user should be responsible
# but which aren't accepted yet
def self.unaccepted_tasks_for(user)
user.tasks.undone.where(assignments: { accepted: false })
end
# Find all accepted tasks, which aren't done
def self.accepted_tasks_for(user)
user.tasks.undone.where(assignments: { accepted: true })
end
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# find all tasks in the period (or another number of days)
def self.next_assigned_tasks_for(user, number = FoodsoftConfig[:tasks_period_days].to_i)
user.tasks.undone.where(assignments: { accepted: true })
.where(["tasks.due_date >= ? AND tasks.due_date <= ?", Time.now, number.days.from_now])
end
# count tasks with not enough responsible people
# tasks for groups the user is not a member are ignored
def self.unassigned_tasks_for(user)
undone.includes(:assignments, workgroup: :memberships).select do |task|
!task.enough_users_assigned? and
(!task.workgroup or task.workgroup.memberships.detect { |m| m.user_id == user.id })
end
end
def self.next_unassigned_tasks_for(user, max = 2)
periodic_task_group_count = {}
self.unassigned_tasks_for(user).reject do |item|
next false unless item.periodic_task_group
count = periodic_task_group_count[item.periodic_task_group] || 0
periodic_task_group_count[item.periodic_task_group] = count + 1
count >= max
end
end
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def periodic?
not periodic_task_group.nil?
end
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def is_assigned?(user)
self.assignments.detect { |ass| ass.user_id == user.id }
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end
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def is_accepted?(user)
self.assignments.detect { |ass| ass.user_id == user.id && ass.accepted }
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end
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def enough_users_assigned?
assignments.to_a.count(&:accepted) >= required_users ? true : false
end
def still_required_users
required_users - assignments.to_a.count(&:accepted)
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end
# Get users from comma seperated ids
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# and makes the users responsible for the task
# TODO: check for maximal number of users
def user_list=(ids)
list = ids.split(",").map(&:to_i)
new_users = (list - users.collect(&:id)).uniq
old_users = users.reject { |user| list.include?(user.id) }
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self.class.transaction do
# delete old assignments
if old_users.any?
assignments.where(user_id: old_users.map(&:id)).each(&:destroy)
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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 id == current_user_id.to_i
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# 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
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def user_list
@user_list ||= users.collect(&:id).join(", ")
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end
def update_ordergroup_stats(user_ids = self.user_ids)
Ordergroup.joins(:users).where(users: { id: user_ids }).each(&:update_stats!)
end
def exclude_from_periodic_task_group
self.periodic_task_group = nil
true
end
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end