socialforge/app/api/mobile/apis/courses.rb

module Mobile

  module Entities

    class Course < Grape::Entity
      def self.course_expose(field)
        expose field do |f,opt|
          f[:course][field] || f[:course].__send__(field)
        end
      end
      expose :img_url
      course_expose :attachmenttype
      course_expose :class_period
      course_expose :code
      course_expose :created_at
      course_expose :description
      course_expose :endup_time
      course_expose :extra
      course_expose :id
      course_expose :inherit_members
      course_expose :is_public
      course_expose :lft
      course_expose :location
      course_expose :name
      course_expose :open_student
      # course_expose :password
      course_expose :rgt
      course_expose :school_id
      course_expose :setup_time
      course_expose :state
      course_expose :status
      course_expose :string
      course_expose :tea_id
      course_expose :term
      course_expose :time
      course_expose :updated_at
      course_expose :teacher
    end

  end

  class Courses < Grape::API
    resource :courses do
      desc "get all courses"
      params do
        optional :school_id, type: Integer, desc: 'school number'
        requires :per_page_count, type: Integer
        requires :page, type: Integer, desc: 'current page no'
      end
      get do
        cs = CoursesService.new
        courses = cs.course_list(params)
        present :data, courses, with: Entities::Course
        present :status, 0
      end

      desc "Return a course"
      params do
        requires :id, type: Integer
      end
      route_param :id do
        get do
          course = Course.find(params[:id])
          {status: 0, data: course}
        end
      end

    end
  end
end