reminders.rb

# Sends reminders to issue assignees
# Available options:
# * :days => how many days in the future to remind about (defaults to 7)
# * :tracker => id of tracker for filtering issues (defaults to all trackers)
# * :project => id or identifier of project to process (defaults to all projects)
# * :users => array of user ids who should be reminded
def self.reminders(options={})
days = options[:days] || 7
project = options[:project] ? Project.find(options[:project]) : nil
tracker = options[:tracker] ? Tracker.find(options[:tracker]) : nil
user_ids = options[:users]

s = ARCondition.new ["#{IssueStatus.table_name}.is_closed = ? AND #{Issue.table_name}.due_date <= ?", false, days.day.from_now.to_date]
s << "#{Issue.table_name}.assigned_to_id IS NOT NULL"
s << ["#{Issue.table_name}.assigned_to_id IN (?)", user_ids] if user_ids.present?
s << "#{Project.table_name}.status = #{Project::STATUS_ACTIVE}"
s << "#{Issue.table_name}.project_id = #{project.id}" if project
s << "#{Issue.table_name}.tracker_id = #{tracker.id}" if tracker

issues_by_assignee = Issue.find(:all, :include => [:status, :assigned_to, :project, :tracker],
:conditions => s.conditions
).group_by(&:assigned_to)
issues_by_assignee.each do |assignee, issues|
deliver_reminder(assignee, issues, days) if assignee && assignee.active?
end
end