Firebase Database Normalization

Question

So I made a simple app, a Tricycle Patrol app which you can report reckless tricycle drivers (no 1 problem here in our city) by logging in and filling up forms. The report f

Answer 1

Now as you say you need normalize database ... When I have this problem, I stop writing code and start thinking about my application / web ...

• I want to show a list of all reports, another list sorted by plate and ordered by others?
• Or in all lists of reports are sorted by plate?

If your answer is the first, then you need to generate nodes as indexes, like these:

reports{
    report_id{
        created_at:" "
        description:" "
        lat:" "
        lang:" "
        location:" "
        plate_number:" "
    }
}
reports_idx_plate{
    plate_number1{
        report_id1:"true"
        report_id2:"true"
        report_id3:"true"
        report_id4:"true"
    }
}

If your answer is the second one, then your best option is this one:

reports{
    plate_number{
         report_id{
            created_at:" "
            description:" "
            lat:" "
            lang:" "
            location:" "
            plate_number:" "
        }
    }
}

In resume if you need to get list from child node, you need to normalize the nodes and generate the nodes as index. Let me know if I have helped you and good programming!