Expandable cell with firebase database? - swift3

Question

I'm new to swift and I've been watching so many tutorials and looking at other peoples code to see how I can create a expandable cell in my table view controller. But, i've already created a firebase database in the same view controller. The problem is, is that I need the information from my database to be in the expandable view cell with the exception of one label. Does anybody know how i can do this? (It'll make a bit more sense when you take a look at the code below)
//
// Database.swift
// intern
//
// Created by Lani Daniels on 8/20/17.
// Copyright © 2017 Lani Daniels. All rights reserved.
//
import UIKit
import Firebase
import FirebaseDatabase
struct PostStruct {
let title: String
let message: String // How would I put this in the expandable cell?
let company: String // ...Also this in the expandable cell, but i assume it would be the same method as "let message"
}
class DatabaseViewController: UITableViewController {
var selectedCellIndexPath: NSIndexPath?
var posts: [PostStruct] = []
override func viewDidLoad() {
super.viewDidLoad()
//
let databaseRef = Database.database().reference()
databaseRef.child("Posts").queryOrderedByKey().observe(.childAdded, with: {
snapshot in
let snapshotValue = snapshot.value as? NSDictionary
let title = snapshotValue?["title"] as? String
let message = snapshotValue?["message"] as? String
let company = snapshotValue?["company"] as? String
self.posts.insert(PostStruct(title: title ?? "", message: message ?? "", company: company ?? ""), at: 0)
self.tableView.reloadData()
})
post()
}
func post(){
let title = "Title"
let message = "Message"
let company = "Company"
let post : [String : AnyObject] = ["title" : title as AnyObject, "message" : message as AnyObject, "company" : company as AnyObject]
let databaseRef = Database.database().reference()
databaseRef.child("Posts").childByAutoId().setValue(post)
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
let label3 = cell.viewWithTag(3)as? UILabel; label3?.text=posts[indexPath.row].title
label3?.text=posts[indexPath.row].title
let textView2 = cell.viewWithTag(2) as? UITextView; textView2?.text=posts[indexPath.row].message
textView2?.text=posts[indexPath.row].message
let label4 = cell.viewWithTag(4)as? UILabel; label4?.text=posts[indexPath.row].company
label4?.text=posts[indexPath.row].company
return cell
}
#IBAction func appliedDataTapped(_ sender: Any) {
self.performSegue(withIdentifier: "segue", sender: self)
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
}
}