socialforge/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
project.members.count
end
# 返回教师数量即roles表中定义的Manager
def teacherCount project
project.members.count - studentCount(project).to_i
# or
# searchTeacherAndAssistant(project).count
end
# 返回学生数量即roles表中定义的Reporter
#def studentCount project
# searchStudent(project).count
# or
# searchStudent(project).count
# end
# 判断用户是否是课程的管理员
# add by nwb
def is_course_manager?(user_id,course_id)
@result = false
@user_id = CourseInfo.find_by_course_id(course_id)
if @user_id == user.id
@result = true
end
return @result
end
# 返回课程设置界面
def course_settings_tabs
tabs = [{:name => 'info', :action => :edit_course, :partial => 'courses/edit', :label => :label_information_plural},
{:name => 'members', :action => :manage_members, :partial => 'courses/settings/members', :label => :label_member_plural}
]
tabs.select { |tab| User.current.allowed_to?(tab[:action], @course) }
end
#是否启动互评下拉框
def is_evaluation_option
type = []
option1 = []
option2 = []
option1 << l(:lable_start_mutual_evaluation)
option1 << 1
option2 << l(:lable_close_mutual_evaluation)
option2 << 2
type << option1
type << option2
end
# garble count 混淆数量
# alias projectCountOrigin projectCount
# def projectCount project
# count = projectCountOrigin project
# garble count
# end
def homework_type_option
type = []
option1 = []
option2 = []
option1 << l(:label_task_submit_form_accessory)
option1 << 1
option2 << l(:label_task_submit_form_project)
option2 << 2
type << option1
type << option2
end
def proportion_option
type = []
i = 0
while i <= 100
option = []
option << i.to_s + "%"
option << i
type << option
i = i + 10
end
type
end
#alias teacherCountOrigin teacherCount
#def teacherCount project
# count = teacherCountOrigin project
# garble count
#end
# 注意:此方法有问题,速度慢且结果不准
# alias studentCountOrigin studentCount
#def studentCount course
# count = studentCountOrigin course
#garble count
# end
#获取课程所有成员
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def course_all_member course
course.members
end
# 学生人数计算
# add by nwb
def studentCount course
course.student.count.to_s#course.student.count
end
#课程成员数计算
def memberCount course
count = searchStudent(course).count + searchTeacherAndAssistant(course).count
count.to_s
end
def eventToLanguageCourse event_type, course
case event_type
when "issue-note"
l :label_issue
when "issue"
l :label_issue
when "attachment"
l :label_attachment
when "news"
l :label_notification
else
""
end
end
def garble count
count = count.round( 1-count.to_s.size ).to_i
return count.to_s if count.to_s.size.eql?(1)
count.to_s << '+'
end
# =====================================================================================
# return people list
def searchTeacherAndAssistant project
#searchPeopleByRoles(project, TeacherRoles)
members = []
project.members.each do |m|
members << m if m && m.user && m.user.allowed_to?(:as_teacher,project)
end
members
end
def search_student_in_group(project, course_group_id)
#searchPeopleByRoles(project, StudentRoles)
members = []
project.members.each do |m|
members << m if m && m.user && m.user.allowed_to?(:as_student,project)
end
members
end
def searchStudent project
#searchPeopleByRoles(project, StudentRoles)
members = []
project.members.each do |m|
if m && m.user && m.user.allowed_to?(:as_student,project)
members << m
end
end
members
end
def searchStudent_by_name project, name
#searchPeopleByRoles(project, StudentRoles)
members = []
project.members.each do |m|
if m && m.user && m.user.allowed_to?(:as_student,project)
username = m.user[:lastname].to_s + m.user[:firstname].to_s
if(m.user[:login].to_s.include?(name) || m.user.user_extensions[:student_id].to_s.include?(name) || username.include?(name))
members << m
end
end
end
members
end
def searchmember_by_name members, name
#searchPeopleByRoles(project, StudentRoles)
mems = []
if name != ""
members.each do |m|
username = m.user[:lastname].to_s + m.user[:firstname].to_s
if(m.user[:login].to_s.include?(name) || m.user.user_extensions[:student_id].to_s.include?(name) || username.include?(name))
mems << m
end
end
else
mems = members
end
mems
end
def searchgroupmember_by_name members, name, group
#searchPeopleByRoles(project, StudentRoles)
mems = []
if name != ""
members.each do |m|
if m.course_group_id == group.id
username = m.user[:lastname].to_s + m.user[:firstname].to_s
if(m.user[:login].to_s.include?(name) || m.user.user_extensions[:student_id].to_s.include?(name) || username.include?(name))
mems << m
end
end
end
else
mems = members
end
mems
end
def searchgroupstudent_by_name(group, project, name)
members = []
group.members.each do |m|
if m && m.user && m.user.allowed_to?(:as_student,project)
username = m.user[:lastname].to_s + m.user[:firstname].to_s
if(m.user[:login].to_s.include?(name) || m.user.user_extensions[:student_id].to_s.include?(name) || username.include?(name))
members << m
end
end
end
members
end
def searchStudent_by_group group, project
#searchPeopleByRoles(project, StudentRoles)
members = []
group.members.each do |m|
members << m if m && m.user && m.user.allowed_to?(:as_student,project)
end
members
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
def sort_courses(state)
content = ''.html_safe
case state
when 0
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:courses_sort_type => '1')))
content << content_tag('li', link_to(l(:label_sort_by_influence), courses_path(:courses_sort_type => '2')))
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:courses_sort_type => '0'), :class=>"selected"), :class=>"selected")
when 1
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:courses_sort_type => '1'), :class=>"selected"), :class=>"selected")
content << content_tag('li', link_to(l(:label_sort_by_influence), courses_path(:courses_sort_type => '2')))
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:courses_sort_type => '0')))
when 2
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:courses_sort_type => '1')))
content << content_tag('li', link_to(l(:label_sort_by_influence), courses_path(:courses_sort_type => '2'), :class=>"selected"), :class=>"selected")
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:courses_sort_type => '0')))
end
content = content_tag('ul', content)
content_tag('div', content, :class => "tabs")
end
def render_course_hierarchy(courses)
render_course_nested_lists(courses) do |course|
s = link_to_course(course, {}, :class => "#{course.css_classes} #{User.current.member_of_course?(course) ? 'my-course' : nil}").html_safe
s
end
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 sort_course(state, school_id)
content = ''.html_safe
case state
when 0
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0'), :school_id => school_id, :class=>"selected"), :class=>"selected")
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
when 1
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id), :class=>"selected"), :class=>"selected")
content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
when 2
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
#gcm
when 3
content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id), :class=>"selected"), :class=>"selected")
end
#gcmend
content = content_tag('ul', content)
content_tag('div', content, :class => "tabs")
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
# added by meng
# 课程time+term简写2014.春/2014.秋)国际化输出
def get_course_term course
strterm = course.try(:term).to_s
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if !(User.current.language == 'zh'||User.current.language == '')
strterm == '春季学期' ? strterm = 'spring term' : strterm = 'autumn term'
str = ( course.try(:time).to_s << '.' << strterm )
str[0..-6]
else
str = ( course.try(:time).to_s << '.' << strterm )
str[0..-4]
end
end
# added by meng
# 课程term春季学期/秋季学期)国际化输出
def get_course_term_locales course
str = course.try(:term).to_s
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if !(User.current.language == 'zh'||User.current.language == '')
str == '春季学期' ? str = ' ' + 'spring term' : str = ' ' + 'autumn term'
end
return str
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? course
end_time_str = course.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
def find_by_extra_from_project extra
Course.find_by_extra(try(extra))
end
#判断指定用户是不是当前课程的老师
def is_course_teacher (user,course)
#course.members.joins(:member_roles).where("member_roles.role_id IN (:role_id) and members.user_id = #{user.id}", {:role_id => TeacherRoles}).count != 0
user.allowed_to?(:as_teacher,course)
#修改为根据用户是否有发布任务的权限来判断用户是否是课程的老师
#is_teacher = false
#@membership = user.memberships.all(:conditions => Project.visible_condition(User.current))
#@membership.each do |membership|
# unless(membership.project.project_type==0)
# if user.allowed_to?({:controller => "projects", :action => "new_homework"}, membership.project, :global => false)
# is_teacher = true
# end
# end
#end
#is_teacher
end
#当前用户是不是指定课程的学生
def is_cur_course_student course
#course.members.joins(:member_roles).where("member_roles.role_id IN (:role_id) and members.user_id = #{User.current.id}", {:role_id => StudentRoles}).count != 0
User.current.logged? && User.current.member_of_course?(course) && !(User.current.allowed_to?(:as_teacher,course))
#修改:能新建占位且不能新建任务的角色判定为学生
#is_student = false
#@membership = User.current.memberships.all(:conditions => Project.visible_condition(User.current))
#@membership.each do |membership|
# unless(membership.project.project_type==0)
# if !User.current.allowed_to?({:controller => "projects", :action => "new_homework"}, membership.project, :global => false) && User.current.allowed_to?({:controller => "homework_attach", :action => "new"}, membership.project, :global => false)
# is_student = true
# end
# end
#end
#is_student
end
#获取当前用户在指定作业下提交的作业的集合
def cur_user_homework_for_bid bid
bid.homeworks.where("user_id = ?",User.current)
end
#判断当前用户对指定作业是否已经评价过
def has_evaluation? homework
seem_count = homework.rates(:quality).where("rater_id = ?",User.current).count
seem_count > 0
end
#获取指定作业的所有成员
def users_for_homework homework
homework.nil? ? [] : (homework.users + [homework.user])
end
#获取指定作业的最终评分
#最终评分 = 学生评分的平均分 * 0.4 +教师评分 * 0.6
def score_for_homework homework
if homework.bid.is_evaluation == 1 || homework.bid.is_evaluation == nil
return format("%.2f",(homework.bid.proportion * 1.0 / 100) * (teacher_score_for_homework(homework).to_f) + (1 - homework.bid.proportion * 1.0 / 100) * (student_score_for_homework(homework).to_f))
else
return teacher_score_for_homework homework
end
end
def score_for_homework_new homework
if teacher_score_for_homework(homework) != 0
return teacher_score_for_homework homework
else
return student_score_for_homework homework
end
end
#获取作业的互评得分
def student_score_for_homework homework
#member = searchTeacherAndAssistant(homework.bid.courses.first).first#searchPeopleByRoles(homework.bid.courses.first,TeacherRoles).first
#if member.nil?
# return "0.00"
#end
#student_stars = homework.rates(:quality).where("rater_id <> #{member.user_id}").select("stars")
members = searchStudent(homework.bid.courses.first)
user_ids = []
members.each do |user|
user_ids << user.user_id
end
student_stars = homework.rates(:quality).where("rater_id in (:user_ids)",{:user_ids => user_ids}).select("stars")
student_stars_count = 0
student_stars.each do |star|
student_stars_count = student_stars_count + star.stars
end
return format("%.2f",student_stars_count / (student_stars.count == 0 ? 1 : student_stars.count))
end
#获取作业的教师评分
#多个教师只获取一份教师评分
def teacher_score_for_homework homework
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members = searchTeacherAndAssistant(homework.bid.courses.first)
teacher_ids = []
members.each do |user|
teacher_ids << user.user_id
end
teacher_stars = homework.rates(:quality).where("rater_id in (:teacher_ids)",{:teacher_ids => teacher_ids}).select("stars")
teacher_stars_count = 0
teacher_stars.each do |star|
teacher_stars_count = teacher_stars_count + star.stars
end
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return format("%.2f",teacher_stars.count > 0 ? teacher_stars_count/teacher_stars.count : 0)
end
#获取指定项目的得分
def project_score project
issue_count = project.issues.count
issue_journal_count = project.issue_changes.count
issue_score = issue_count * 0.2
issue_journal_score = issue_journal_count * 0.1
finall_issue_score = issue_score + issue_journal_score
new_count = project.news.count
new_score = new_count * 0.1
finall_new_score = new_score
document_count = project.documents.count
file_score = document_count * 0.1
finall_file_score = file_score
changeset_count = project.changesets.count
code_submit_score = changeset_count * 0.3
finall_code_submit_score = code_submit_score
board_message_count = 0
project.boards.each do |board|
board_message_count += board.messages_count
end
topic_score = board_message_count * 0.1
#finall_topic_score = topic_score
finall_project_score = finall_issue_score + finall_new_score + finall_file_score + finall_code_submit_score + topic_score
format("%.2f",finall_project_score)
end
#获取指定作业的参与人员
#返回结果:张三、李四、王五
def homework_user_of_homework homework,is_teacher
homework_users = ""
homework.users.each do |user|
homework_users = homework_users + (is_teacher ? (user.lastname + user.firstname) : user.login)
if user != homework.users.last
homework_users = homework_users + ""
end
end
return homework_users
end
def get_courses_by_tag(tag_name)
Course.tagged_with(tag_name).order('updated_at desc')
end
#课程实践年份下拉框
def course_time_option year
type = []
now_year = year.nil? ? Time.now.year : (Time.now.year <= year ? Time.now.year : year)
for i in (now_year..now_year + 10)
option = []
option << i
option << i
type << option
end
type
end
#课程课时下拉框
def course_term_option
type = []
option1 = []
option1 << l(:label_spring)
option1 << l(:label_spring)
option2 = []
option2 << l(:label_autumn)
option2 << l(:label_autumn)
type << option1
type << option2
type
end
def cur_course_term
month = Time.now.month
if month >= 9 || month < 3
term = "秋季学期"
else
term = "春季学期"
end
term
end
def course_in_current_or_next_term course
is_current_term = false
is_next_term = false
year_now = Time.now.month < 3 ? Time.now.year - 1:Time.now.year
if course.time == year_now && course.term == cur_course_term
is_current_term = true
end
if cur_course_term == "秋季学期" && course.time == (year_now + 1) && course.term == "春季学期"
is_next_term = true
elsif cur_course_term == "春季学期" && course.time == year_now && course.term == "秋季学期"
is_next_term = true
end
is_current_term || is_next_term
end
#获取课程动态
def get_course_activity courses, activities
@course_ids=activities.keys()
days = Setting.activity_days_default.to_i
date_to ||= Date.today + 1
date_from = date_to - days-1.years
#file_count
Attachment.where(container_id: @course_ids, container_type: Course).where("created_on>?", date_from).each do |attachment|
activities[attachment.container_id]+=1
end
#message_count
Board.where(course_id: @course_ids).each do |board|
# activities[board.course_id]+=1
activities[board.course_id]+=board.messages.where("updated_on>?", date_from).count
end
#news
News.where(course_id: @course_ids).where("created_on>?",date_from).each do |news|
activities[news.course_id]+=1
end
# 动态数 + 1 ( 某某创建了该课程 )
activities.each_pair { |key, value| activities[key] = value + 1 }
return activities
end
end