add collaborators for spaes

mirror-2/supabase/migrations/20240929062844_collaborators.sql

@@ -0,0 +1,44 @@
+
+-- Create the space_user_collaborators table
+create table space_user_collaborators (
+  id uuid not null primary key,
+  space_id uuid references spaces(id) on delete cascade not null,
+  user_id uuid references auth.users(id) on delete cascade not null,
+  created_at timestamp with time zone not null default now(),
+  constraint unique_space_user unique(space_id, user_id)
+);
+
+-- Enable RLS for space_user_collaborators
+alter table space_user_collaborators
+  enable row level security;
+
+-- Only space owners can add collaborators
+create policy "Only space owners can add collaborators" 
+on space_user_collaborators
+for insert 
+with check (
+  exists (
+    select 1 from spaces 
+    where spaces.id = space_id 
+    and spaces.creator_user_id = auth.uid()
+  )
+);
+
+-- Policy for selecting space_user_collaborators
+create policy "Users can view where they are a collaborator" 
+on space_user_collaborators
+for select 
+using (user_id = auth.uid());
+
+
+-- Policy for collaborators to view spaces
+create policy "Collaborators can view spaces" 
+on spaces
+for select 
+using (
+  exists (
+    select 1 from space_user_collaborators 
+    where space_user_collaborators.space_id = spaces.id 
+    and space_user_collaborators.user_id = auth.uid()
+  )
+);