User Block Function

Hi guys, I copied my tutorial from the old FF-Community and now I'm posting it here, Because it was helpful for many users. 🙂 Have fun!

This is a tutorial to build a block user function. A registered user can block another user and hide the profile and all posts of the blocked user. And there is a "Unblock List" to unblock the Blocked Users. This function is important if you want to build a social app and is also prescribed in the Apple guidelines, when you want to publish your App in the Stores! 📱

Okay, but said too much now. Let us begin! 😀

1. First create a new List in the Collection "Users".

2. Add a Custom Function.

Code: 

import 'dart:math' as math;

bool ifUserinBlockedList(
  List<DocumentReference> userblocked,
  DocumentReference user,
  DocumentReference authUser,
) {
  if (user == authUser) {
    return true;
  } else {
    if (userblocked.contains(user)) {
      return false;
    } else {
      return true;
    }
  }
}

4. Add a Backen Call Action to add the User to the Block-List

Add Visibility

5. Add Visibility for hiding the User Post, if the User is blocked.

Blocked users List to unblock users:
6. Generate Children from Variable

7. Add a Query Type to your Row

8. Add a Backen Call to unblock User

Now you can add the variables like: username, picture, ....

I hope that helped. 🙂 I'm very bad at tutorial making. If you have any questions, I'll be happy to answer them. Just write it in the comments! Happy Building! 😀