educoder/app/controllers/subjects_controller.rb

# encoding: utf-8
class SubjectsController < ApplicationController
  layout 'base_subject'
  before_filter :require_login
  before_filter :check_authentication
  before_filter :find_subject, :except => [:index, :create_subject, :new_subject, :append_to_stage]

  include ApplicationHelper

  def index
    @order = params[:order] || "created_at"
    bsort = params[:sort] || "desc"
    @sort = bsort == "desc" ? "asc" : "desc"
    search = params[:search]
    ids = Subject.find_by_sql("select group_concat(id) as allId from subjects where id in (SELECT distinct(subject_id) FROM `stages`)")
    @subjects = Subject.where(:id => ids[0].allId.nil? ? "-1" : ids[0].allId.split(",")).reorder("#{@order} #{bsort}")
    @subject_created_count = Subject.find_by_sql("select count(*) as count from subjects where id in (SELECT distinct(subject_id) FROM `stages`) and user_id=#{User.current.id};").first.try(:count)
    @subjects_all_count = @subjects.count
    #@subjects = Subject.where("name like ?", "%#{search}%").reorder("#{@order} #{@sort}")
    @subjects_count = @subjects.count
    @limit = 16
    @is_remote = true
    @subject_pages = Paginator.new @subjects_count, @limit, params['page'] || 1
    @offset ||= @subject_pages.offset
    @subjects = paginateHelper @subjects, @limit
    render :layout => "base_edu"
  end

  def show
    @stages = @subject.stages
  end

  def new_subject
    if Course.where(:tea_id => User.current.id).count > 0
      @status = 1
      @course_lists = CourseList.where(:id => ShixunMajorCourse.where(:shixun_id => Shixun.where(:user_id => User.current.id).map(&:id)).map(&:course_list_id))
    else
      @status = 0
    end
    respond_to do |format|
      format.js
    end
  end

  def create_subject
    if params[:course_list_id]
      course = CourseList.find params[:course_list_id]
      if course
        subject = Subject.create(:name => course.name, :user_id => User.current.id, :visits => 0, :status => 0, :course_list_id => course.id)
      end
    end
    redirect_to subject_path(subject)
  end

  def choose_subject_shixun
    course_list = @subject.course_list
    @shixuns = Shixun.where(:user_id => User.current.id, :status => [0, 1, 2], :id => course_list.shixun_major_courses.map(&:shixun_id))
    @shixuns_count = @shixuns.count
    @limit = 8
    @shixuns_pages = Paginator.new @shixuns_count, @limit, params['page'] || 1
    @offset ||= @shixuns_pages.offset
    @shixuns = paginateHelper @shixuns, @limit
  end

  def append_to_stage
    @shixuns = Shixun.where(:id => params[:shixun_id])
  end

  def publish
    @subject.update_attributes(:status => 1)
    apply = ApplyAction.where(:container_type => "ApplySubject", :container_id => @subject.id).order("created_at desc").first
    if apply && apply.status == 0
      @status = 0
    else
      ApplyAction.create(:container_type => "ApplySubject", :container_id => @subject.id, :user_id => User.current.id, :status => 0)
      notes = User.current.show_name.to_s + " 申请发布课程实训：<a href='#{subject_path(@subject)}'>#{@subject.name}</a>"
      JournalsForMessage.create(:jour_id => 1, :jour_type => 'Principal', :user_id => User.current.id, :notes => notes, :private => 1, :reply_id => 0)
      @status = 1
    end
  end

  def cancel_publish
    apply = ApplyAction.where(:container_type => "ApplySubject", :container_id => @subject.id).order("created_at desc").first
    if apply && apply.status == 0
      apply.update_attributes(:status => 3)
      @subject.update_column('status', 0)
    end
    redirect_to subject_path(@subject)
  end

  private
  # Find subject of id params[:id]
  def find_subject
    @subject = Subject.find_by_id(params[:id])
    render_404 if @subject.nil?
  rescue ActiveRecord::RecordNotFound
    render_404
  end
end