const user = require('../models/model1').user;
       const chat = require('../models/model1').chat;


        const education = function (req, res) {

        chat.find({ categorie: "/education"}).
        populate('user').
        exec(function (err, chat) {
        if (err) return handleError(err);
        console.log( "&&&&&&&&&&&&&&&& ",chat);
        res.status(200).render('education',{message:chat});
         });
       };


       const message = function (req, res) { // storing the 50
       previous messages

      var new_chat;
       user.find(
         {email: req.query.y}, (err, user) =>{
              if (err) return res.status(500).send(err);

           var new_chat = new chat({
               body: req.query.x,
               date:    new Date(),
               sender: user[0].id,
               categorie: req.query.z
           });
           new_chat.save(function(err) {
               if (err) throw err;
                  console.log('message saved');
           });
        });
         };

        exports=module.exports={education,message};

const mongoose = require('mongoose');
       Schema = mongoose.Schema;

       let user_schema = new Schema({
       email: {type: String, required: true, max: 100, unique
        :true},
        password: {type: String, required: true},
        username: {type: String},
        friends:{type: Schema.Types.ObjectId, ref: 'user'}
         });

         const user = mongoose.model('user', user_schema,'user');
         let chat_schema=new Schema({

         body :{type: String ,reqiured: true},
         date: {type:Date , reqiured: true},
          sender:{type: Schema.Types.ObjectId, ref: 'user', required:
          true},
           categorie: {type: String, required: true},
           receiver:{type: Schema.Types.ObjectId, ref: 'user',}
            });

         const chat = mongoose.model('chat',chat_schema,'chat' );

          exports =module.exports={chat,user};