socialforge/app/api/mobile/entities/issue.rb

module Mobile
  module Entities
    class Issue <Grape::Entity
      include ApiHelper
      include Redmine::I18n
      def self.issue_expose(f)
        expose f do |issue, opt|
          if issue.is_a?(Hash) && issue.key?(f)
            issue[f]
          elsif issue.is_a?(::Issue)
            if issue.respond_to?(f)
              if f == :created_on
                format_time(issue.send(f))
              else
                issue.send(f)
              end
            else
              case f
                when :issue_priority
                  get_issue_priority_api issue.priority_id
                when :issue_assigned_to
                  (get_user(issue.assigned_to_id)).login
                when :issue_status
                  IssueStatus.find(issue.status_id).name
                when :journals_count
                  issue.journals.where("notes is not null and notes != ''").count
                when :project_name
                  issue.project.name
                when :issue_praise_count
                  get_activity_praise_num(issue)
              end
            end
          end
        end
      end
      expose :subject
      expose :description
      expose :author, using: Mobile::Entities::User
      expose :done_ratio
      issue_expose :created_on
      issue_expose :issue_priority
      issue_expose :issue_assigned_to
      issue_expose :issue_status
      issue_expose :journals_count
      issue_expose :project_name
      issue_expose :issue_praise_count
      expose :issue_journals, using: Mobile::Entities::Journal  do |f, opt|
        if f.is_a?(::Issue)
          f.journals.where("notes is not null and notes != ''").reverse
        end
      end
      expose :has_praise , if: lambda { |instance, options| options[:user] } do |instance, options|
        has_praise = false
        current_user = options[:user]
        obj = PraiseTread.where("praise_tread_object_id=? and praise_tread_object_type=? and user_id=?",instance.id,instance.class.to_s,current_user.id)
        has_praise = obj.empty? ? false : true
        has_praise
      end
    end
  end
end