61 lines
1.7 KiB
Ruby
61 lines
1.7 KiB
Ruby
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class Task < ActiveRecord::Base
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has_many :assignments, :dependent => :destroy
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has_many :users, :through => :assignments
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belongs_to :group
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# form will send user in string. responsibilities will added later
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attr_protected :users
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validates_length_of :name, :minimum => 3
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def is_assigned?(user)
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self.assignments.detect {|ass| ass.user_id == user.id }
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end
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def is_accepted?(user)
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self.assignments.detect {|ass| ass.user_id == user.id && ass.accepted }
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end
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def enough_users_assigned?
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assignments.find_all_by_accepted(true).size >= required_users ? true : false
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end
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# extracts nicknames from a comma seperated string
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# and makes the users responsible for the task
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def user_list=(string)
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@user_list = string.split(%r{,\s*})
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new_users = @user_list - users.collect(&:nick)
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old_users = users.reject { |user| @user_list.include?(user.nick) }
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logger.debug "New users: #{new_users}"
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logger.debug "Old users: #{old_users}"
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self.class.transaction do
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# delete old assignments
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if old_users.any?
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assignments.find(:all, :conditions => ["user_id IN (?)", old_users.collect(&:id)]).each(&:destroy)
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end
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# create new assignments
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new_users.each do |nick|
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user = User.find_by_nick(nick)
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if user.blank?
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errors.add(:user_list)
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else
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if user == User.current_user
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# current_user will accept, when he puts himself to the list of users
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self.assignments.build :user => user, :accepted => true
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else
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# normal assignement
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self.assignments.build :user => user
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end
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end
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end
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end
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end
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def user_list
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@user_list ||= users.collect(&:nick).join(", ")
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end
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end
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