修复加入课程逻辑判断有误的问题

app/controllers/courses_controller.rb

@@ -26,28 +26,32 @@ class CoursesController < ApplicationController
   def join
     if User.current.logged?
       course = Course.find_by_id params[:object_id]
-      unless course
-        @state = 4
-      else
-        unless (allow_join(course) && User.current.member_of_course?(course))
-          if params[:course_password] == course.password
-            members = []
-            members << Member.new(:role_ids => [10], :user_id => User.current.id)
-            course.members << members
-            StudentsForCourse.create(:student_id => User.current.id, :course_id => params[:object_id])
-            @state = 0
-          else
-            @state = 1
-          end
+      if course
+        if course_endTime_timeout? course
+          @state = 2
         else
-          @state = 3
+          if User.current.member_of_course?(course)
+            @state = 3
+          else
+            if params[:course_password] == course.password
+              members = []
+              members << Member.new(:role_ids => [10], :user_id => User.current.id)
+              course.members << members
+              StudentsForCourse.create(:student_id => User.current.id, :course_id => params[:object_id])
+              @state = 0
+            else
+              @state = 1
+            end
+          end
         end
+      else
+        @state = 4
       end
     else
       @state = 5
     end
     respond_to do |format|
-      format.js { render :partial => 'set_join', :locals => {:user => User.current, :course => Course.find(params[:object_id]), :object_id => params[:object_id]} }
+      format.js { render :partial => 'set_join', :locals => {:user => User.current, :course => course, :object_id => params[:object_id]} }
     end
   rescue Exception => e
     @state = 4