Merge pull request #229 from codeunia-dev/fix/username-update-database-function

Fix: Resolve username update database function error

Author: codeunia-dev

check-database-status.sql

@@ -0,0 +1,57 @@
+-- =====================================================
+-- DATABASE STATUS CHECK
+-- =====================================================
+-- Copy and paste this entire query into your Supabase SQL Editor
+-- and share the results with me
+
+-- 1. Check if profiles table exists
+SELECT 
+    'Table Check' as check_type,
+    table_name,
+    CASE 
+        WHEN table_name = 'profiles' THEN 'EXISTS'
+        ELSE 'OTHER TABLE'
+    END as status
+FROM information_schema.tables 
+WHERE table_schema = 'public' 
+AND table_name = 'profiles';
+
+-- 2. Check if update_username function exists
+SELECT 
+    'Function Check' as check_type,
+    proname as function_name,
+    CASE 
+        WHEN proname = 'update_username' THEN 'EXISTS'
+        ELSE 'OTHER FUNCTION'
+    END as status
+FROM pg_proc 
+WHERE proname = 'update_username';
+
+-- 3. Check if set_username function exists
+SELECT 
+    'Function Check' as check_type,
+    proname as function_name,
+    CASE 
+        WHEN proname = 'set_username' THEN 'EXISTS'
+        ELSE 'OTHER FUNCTION'
+    END as status
+FROM pg_proc 
+WHERE proname = 'set_username';
+
+-- 4. List all tables in public schema
+SELECT 
+    'All Tables' as check_type,
+    table_name,
+    'EXISTS' as status
+FROM information_schema.tables 
+WHERE table_schema = 'public'
+ORDER BY table_name;
+
+-- 5. List all functions in public schema
+SELECT 
+    'All Functions' as check_type,
+    proname as function_name,
+    'EXISTS' as status
+FROM pg_proc 
+WHERE pronamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'public')
+ORDER BY proname;

check-schema-permissions.sql

@@ -0,0 +1,55 @@
+-- =====================================================
+-- CHECK SCHEMA AND PERMISSIONS
+-- =====================================================
+-- Copy and paste this query to check schema and permissions
+
+-- 1. Check current schema
+SELECT 
+    'Current Schema' as check_type,
+    current_schema() as schema_name,
+    'Current schema being used' as info;
+
+-- 2. Check if profiles table exists in different schemas
+SELECT 
+    'Table Schema Check' as check_type,
+    table_schema,
+    table_name,
+    'EXISTS' as status
+FROM information_schema.tables 
+WHERE table_name = 'profiles'
+ORDER BY table_schema;
+
+-- 3. Check table permissions for current user
+SELECT 
+    'Table Permissions' as check_type,
+    table_name,
+    privilege_type,
+    grantee
+FROM information_schema.table_privileges 
+WHERE table_name = 'profiles'
+AND table_schema = 'public';
+
+-- 4. Check function permissions
+SELECT 
+    'Function Permissions' as check_type,
+    routine_name,
+    privilege_type,
+    grantee
+FROM information_schema.routine_privileges 
+WHERE routine_name = 'update_username'
+AND routine_schema = 'public';
+
+-- 5. Check if we can access profiles table directly
+SELECT 
+    'Direct Access Test' as check_type,
+    COUNT(*) as row_count,
+    'Can access profiles table' as info
+FROM public.profiles;
+
+-- 6. Check search_path
+SELECT 
+    'Search Path' as check_type,
+    setting as search_path,
+    'Current search path' as info
+FROM pg_settings 
+WHERE name = 'search_path';

components/UsernameField.tsx

@@ -109,7 +109,11 @@ export function UsernameField({
       })
 
       if (error) {
-        if (error.message.includes('Username can only be changed once')) {
+        // Handle specific database errors
+        if (error.message.includes('relation "profiles" does not exist')) {
+          setError("Database setup incomplete. Please contact support.")
+          console.error('Profiles table does not exist. Database migration needed.')
+        } else if (error.message.includes('Username can only be changed once')) {
           setError("You can only change your username once")
         } else if (error.message.includes('Username is already taken')) {
           setError("Username is already taken")

fix-username-function.sql

@@ -0,0 +1,59 @@
+-- =====================================================
+-- FIX UPDATE_USERNAME FUNCTION
+-- =====================================================
+-- Copy and paste this query to fix the update_username function
+
+-- Drop and recreate the function with proper schema references
+DROP FUNCTION IF EXISTS update_username(UUID, TEXT);
+
+CREATE OR REPLACE FUNCTION update_username(
+    user_id UUID,
+    new_username TEXT
+)
+RETURNS BOOLEAN
+LANGUAGE plpgsql
+SECURITY DEFINER
+AS $$
+DECLARE
+    can_edit BOOLEAN;
+    username_exists BOOLEAN;
+BEGIN
+    -- Check if user can still edit username
+    SELECT username_editable INTO can_edit 
+    FROM public.profiles 
+    WHERE id = user_id;
+    
+    IF NOT FOUND THEN
+        RETURN FALSE;
+    END IF;
+    
+    IF NOT can_edit THEN
+        RETURN FALSE; -- Username already edited once
+    END IF;
+    
+    -- Check if new username already exists
+    SELECT EXISTS(SELECT 1 FROM public.profiles WHERE username = new_username AND id != user_id) 
+    INTO username_exists;
+    
+    IF username_exists THEN
+        RETURN FALSE; -- Username already taken
+    END IF;
+    
+    -- Update username and mark as non-editable
+    UPDATE public.profiles 
+    SET username = new_username, username_editable = FALSE
+    WHERE id = user_id;
+    
+    RETURN TRUE;
+END;
+$$;
+
+-- Grant execute permission to authenticated users
+GRANT EXECUTE ON FUNCTION update_username(UUID, TEXT) TO authenticated;
+GRANT EXECUTE ON FUNCTION update_username(UUID, TEXT) TO anon;
+GRANT EXECUTE ON FUNCTION update_username(UUID, TEXT) TO service_role;
+
+-- Test the function
+SELECT 
+    'Function Fixed' as status,
+    'update_username function has been updated with proper schema references' as message;