trustieforge/app/helpers/courses_helper.rb

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# encoding: utf-8
## This helper be included in applicationHelper
module CoursesHelper
=begin
1. define TeacherRoles, StudentRoles
2. define count function
3. define search by roles
4. define search member function
=end
TeacherRoles = [3, 4, 7, 9]
StudentRoles = [5, 10]
AllPeople = StudentRoles+TeacherRoles
## return people count
# 返回x项目成员数量即roles表中定义的所有成员
def projectCount project
searchCountByRoles project, AllPeople
end
# 返回教师数量即roles表中定义的Manager
def teacherCount project
searchCountByRoles project, TeacherRoles
# or
# searchTeacherAndAssistant(project).count
end
# 返回学生数量即roles表中定义的Reporter
def studentCount project
searchCountByRoles project,StudentRoles
# or
# searchStudent(project).count
end
# =====================================================================================
# return people list
def searchTeacherAndAssistant project
searchPeopleByRoles(project, TeacherRoles)
end
def searchStudent project
searchPeopleByRoles(project, StudentRoles)
end
# =====================================================================================
def searchCountByRoles project, roles_id
members = searchPeopleByRoles project, roles_id
members.count
end
def searchPeopleByRoles project, roles_id
members = []
begin
members = project.members.joins(:member_roles).where("member_roles.role_id IN (:role_id)", {:role_id => roles_id})
rescue Exception => e
logger.error "[CoursesHelper] ===> #{e}"
end
members
end
#useless
def searchMembersByRole project, role_id
members = []
begin
members = project.members.joins(:member_roles).where("member_roles.role_id = :role_id", {:role_id => role_id })
rescue Exception => e
logger.error "[CoursesHelper] ===> #{e}"
end
members
end
def findCourseTime project
str = ""
begin
@course = Course.find_by_extra(@project.identifier)
date_format = l(:zh_date)[:formats][:default]
if @course
str = DateTime.parse(@course.setup_time.to_s).strftime("#{date_format}").to_s unless @course.setup_time.blank?
str << '-' unless @course.setup_time.blank?
str << DateTime.parse(@course.endup_time.to_s).strftime("#{date_format}").to_s unless @course.endup_time.blank?
end
rescue Exception => e
logger.error "[CoursesHelper] ===> #{e}"
end
str
end
def get_course_term project
str = ( project.try(:course_extra).try(:time).to_s << '.' << project.try(:course_extra).try(:term).to_s )
str[0..-4]
end
def members_to_user_ids members
people = []
members.each { |member|
people << member.user_id
}
people
end
# 截至到2014-03-17 这个是最终的判断课程是否过期的方法
def course_endTime_timeout? project
end_time_str = Course.find_by_extra(project.try(:identifier)).try(:endup_time)
begin
cTime = Time.parse(end_time_str.to_s)
rescue TypeError,ArgumentError
cTime = Time.parse("3000-01-01")
end
now = Time.now
now > cTime
end
end