class SchoolController < ApplicationController before_filter :require_admin, :only => :upload_logo def upload uploaded_io = params[:logo] school_id = 0 schools = School.where("name = ?", params[:school]) schools.each do |s| school_id = s.id end unless uploaded_io.nil? File.open(Rails.root.join('public', 'images', 'school', school_id.to_s+'.png'), 'wb') do |file| file.write(uploaded_io.read) end s1 = School.find(school_id) s1.logo_link = '/images/school/'+school_id.to_s+'.png' s1.save end end def upload_logo end #获取制定学校开设的课程数 def course_count school_id School.find(school_id).courses.count end def index end def get_province @provinces = School.find_by_sql("select distinct province from schools") options = "" @provinces.each do |p| options << "" end # 查询已添加用户的学校 schools_arr = UserExtensions.where("school_id IS NOT NULL").pluck(:school_id).uniq # 取id取学校名 school = School.where(id: schools_arr).select("id, name") options_s = "" school.each do |s| options_s << "