profiles.sql

-- Create a table for public profiles
create table profiles (
  id uuid references auth.users not null primary key,
  updated_at timestamp with time zone,
  username text unique,
  full_name text,
  avatar_url text,
  website text,
  constraint username_length check (char_length(username) >= 3)
);

alter table profiles enable row level security;

create policy "Public profiles are viewable by everyone."
  on profiles for select
  using ( true );

create policy "Users can insert their own profile."
  on profiles for insert
  with check ( auth.uid() = id );

create policy "Users can update own profile."
  on profiles for update
  using ( auth.uid() = id );

-- Set up Realtime!
begin;
  drop publication if exists supabase_realtime;
  create publication supabase_realtime;
commit;
alter publication supabase_realtime add table profiles;

-- Trigger to handle new user signup
create or replace function public.handle_new_user()
returns trigger as $$
begin
  insert into public.profiles (id, full_name, avatar_url, username)
  values (
    new.id,
    new.raw_user_meta_data->>'full_name',
    new.raw_user_meta_data->>'avatar_url',
    split_part(new.email, '@', 1)
  );
  return new;
end;
$$ language plpgsql security definer;

create or replace trigger on_auth_user_created
  after insert on auth.users
  for each row execute procedure public.handle_new_user();