Open Firebase Database Feed - ios

Question

does anyone have a suggestion how to get rid off the user obligation when posting new element to the Firebase database? I would like to create open feed but this is only for one particular user.
Thank you!
The function starts like:
func fetchPosts(){
let ref = Database.database().reference()
ref.child("users").queryOrderedByKey().observeSingleEvent(of: .value, with: { snapshot inlet users = snapshot.value as! [String : AnyObject]
The main problem I see in this:
for (_,value) in users {
if let uid = value["uid"] as? String {
if uid == Auth.auth().currentUser?.uid {
if let followingUsers = value["following"] as? [String : String]{
for (_,user) in followingUsers{
self.following.append(user)
}
}
self.following.append(Auth.auth().currentUser!.uid)
ref.child("posts").queryOrderedByKey().observeSingleEvent(of: .value, with: { (snap) in
let postsSnap = snap.value as! [String : AnyObject]
for (_,post) in postsSnap {
if let userID = post["userID"] as? String {
for each in self.following {
if each == userID {
I guess this would be the same:
let posst = Post()
if let author = post["author"] as? String, let likes = post["likes"] as? Int, let pathToImage = post["pathToImage"] as? String, let postID = post["postID"] as? String {
posst.author = author
posst.likes = likes
posst.pathToImage = pathToImage
posst.postID = postID
posst.userID = userID
if let people = post["peopleWhoLike"] as? [String : AnyObject] {
for (_,person) in people {
posst.peopleWhoLike.append(person as! String)
}
}
self.posts.append(posst)
}
}
}
self.collectionview.reloadData()
}
}
})
}
}
}
})}

Answer 1

OK so if I am understanding your question correctly you want anyone signed in to be able to see all the posts not just the posts of the users they are following.
If this is in fact the case then you do not need to check who the user is following. You just want to load all of the posts. Change
for (_,post) in postsSnap {
if let userID = post["userID"] as? String {
for each in self.following {
if each == userID {
To
self.ref.child("posts").queryOrderedByKey().observeSingleEvent(of: .value, with: { snap in
if let postsSnap = snap.value as? [String: AnyObject] {
for(_, post) in postsSnap {
if let userID = post["userID"] as? String {
for each in self.following {
if each == userID {
let posst = Post()
if let author = post["author"] as? String, let likes = post["likes"] as? Int, let pathToImage = post["pathToImage"] as? String, let postID = post["postID"] as? String, let postDescription = post["postDescription"] as? String, let timestamp = post["timestamp"] as? Double, let category = post["category"] as? String, let group = post["group"] as? Int {
posst.author = author
posst.likes = likes
posst.pathToImage = pathToImage
posst.postID = postID
posst.userID = userID
posst.fancyPostDescription = self.createAttributedString(author: author, postText: postDescription)
posst.postDescription = author + ": " + postDescription
posst.timestamp = timestamp
posst.group = group
posst.category = category
posst.userWhoPostedLabel = self.createAttributedPostLabel(username: author, table: group, category: category)
if let people = post["peopleWhoLike"] as? [String: AnyObject] {
for(_, person) in people {
posst.peopleWhoLike.append(person as! String)
}
}
self.posts.append(posst)
} // end if let
}
}
self.tableView.reloadData()
}
}
}
})
ref.removeAllObservers()
If you want anyone to be able to read / write to your database you have to update the rules in the Firebase console. You do this by clicking on database then rules. The default rules look like this:
{
"rules": {
".read": "auth != null",
".write": "auth != null"
}
}
Change them to
{
"rules": {
".read": "true",
".write": "true"
}
}
I looked at the video you're following and he make's a lot of mistakes. Really when you request data from Firebase you should be paging i.e. loading a set number of posts and then loading more based on the scroll position.