클로저 찾기 node.js, mongodb, express

Question

도와주세요. 검색 용 게시물에 변수가 필요합니다.

app.post('/find', function(req, res) { 
    var id_school = req.body.std_id; 
    console.log('show '+ id_sekolah); 
    db.collection('ak_test_score', function(err, collection) { 
     collection.find({'std_id':id_school}).toArray(function(err, level) { 
      var a = level.std_id; 
      var b = level.school_name; 
     }); 
    }); 
    res.redirect('/test_score'); // send to my page to get 
}; 

var test = a; // not defined variable a not have 

app.get('/test_score', function(req, res) { 
    var id_school = test; 
    console.log('show '+ id_sekolah); 
    db.collection('ak_test_score', function(err, collection) { 
     collection.find({'std_id':id_school}).toArray(function(err, level) { 
      res.send(level) 
     }); 
    }); 
}; 

나는 게시물을 사용하는 웹 사이트 검색에 이것을 사용하고 있습니다.

Answer 1

app.post('/find', function(req, res) { 
    var id_school = req.body.std_id; 
    console.log('show '+ id_sekolah); 
    db.collection('ak_test_score', function(err, collection) { 
     collection.find({'std_id':id_school}).toArray(function(err, level) { 
     var a = level.std_id; 
     app.set('data',a); 
     var b = level.school_name; 

     }); 
}); 
    res.redirect('/test_score'); ///// send to my page to get 
}; 


app.get('/test_score', function(req, res) { 
    var id_school = app.get('data'); 
    console.log('show '+ id_sekolah); 
    db.collection('ak_test_score', function(err, collection) { 
     collection.find({'std_id':id_school}).toArray(function(err, level) { 
      res.send(level) 
     }); 
}); 

};