Fix null→false, stock seed data, action_get on model, FK order

- Normalize null DB values to false (Odoo convention) in web_search_read
  and web_read responses
- Seed stock reference data: 6 locations, 1 warehouse, 3 picking types
- Fix FK order: warehouse must be created before picking types
- Move action_get from hardcoded dispatcher to res.users RegisterMethod
- Add action_res_users_my (ID 103) to seedActions
- Remove hardcoded action_get case from dispatchORM

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

addons/base/models/res_users.go

@@ -61,6 +61,23 @@ func initResUsers() {
 			Help: "External user with limited access (portal/public)",
 		}),
 	)
+
+	// -- Methods --
+
+	// action_get returns the "Change My Preferences" action for the current user.
+	// Mirrors: odoo/addons/base/models/res_users.py Users.action_get()
+	m.RegisterMethod("action_get", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
+		return map[string]interface{}{
+			"type":      "ir.actions.act_window",
+			"name":      "Change My Preferences",
+			"res_model": "res.users",
+			"view_mode": "form",
+			"views":     [][]interface{}{{false, "form"}},
+			"target":    "new",
+			"res_id":    rs.Env().UID(),
+			"context":   map[string]interface{}{},
+		}, nil
+	})
 }
 
 // initResGroups registers the res.groups model.

pkg/server/server.go

@@ -629,20 +629,6 @@ func (s *Server) dispatchORM(env *orm.Environment, params CallKWParams) (interfa
 	case "activity_format":
 		return []interface{}{}, nil
 
-	case "action_get":
-		// res.users.action_get() — returns the preference action
-		// Mirrors: odoo/addons/base/models/res_users.py action_get()
-		return map[string]interface{}{
-			"type":      "ir.actions.act_window",
-			"name":      "Change My Preferences",
-			"res_model": "res.users",
-			"view_mode": "form",
-			"views":     [][]interface{}{{false, "form"}},
-			"target":    "new",
-			"res_id":    env.UID(),
-			"context":   map[string]interface{}{},
-		}, nil
-
 	case "action_archive":
 		ids := parseIDs(params.Args)
 		if len(ids) > 0 {

pkg/server/web_methods.go

@@ -89,6 +89,9 @@ func handleWebSearchRead(env *orm.Environment, model string, params CallKWParams
 	// Format date/datetime fields to Odoo's expected string format
 	formatDateFields(model, records)
 
+	// Convert SQL NULLs to Odoo-expected defaults (false, 0, etc.)
+	normalizeNullFields(model, records)
+
 	if records == nil {
 		records = []orm.Values{}
 	}
@@ -133,6 +136,9 @@ func handleWebRead(env *orm.Environment, model string, params CallKWParams) (int
 	// Format date/datetime fields to Odoo's expected string format
 	formatDateFields(model, records)
 
+	// Convert SQL NULLs to Odoo-expected defaults (false, 0, etc.)
+	normalizeNullFields(model, records)
+
 	if records == nil {
 		records = []orm.Values{}
 	}
@@ -203,6 +209,42 @@ func formatM2OFields(env *orm.Environment, modelName string, records []orm.Value
 	}
 }
 
+// normalizeNullFields converts SQL NULL (Go nil) values to Odoo-expected defaults.
+// In Python Odoo, empty fields return False (JSON false), not null.
+// Without this, the webclient may render "null" as literal text.
+// Mirrors: odoo/orm/fields.py convert_to_read() behaviour
+func normalizeNullFields(model string, records []orm.Values) {
+	m := orm.Registry.Get(model)
+	if m == nil {
+		return
+	}
+	for _, rec := range records {
+		for fieldName, val := range rec {
+			if val != nil {
+				continue
+			}
+			f := m.GetField(fieldName)
+			if f == nil {
+				continue
+			}
+			switch f.Type {
+			case orm.TypeChar, orm.TypeText, orm.TypeHTML, orm.TypeSelection:
+				rec[fieldName] = false
+			case orm.TypeMany2one:
+				rec[fieldName] = false
+			case orm.TypeInteger, orm.TypeFloat, orm.TypeMonetary:
+				rec[fieldName] = false
+			case orm.TypeBoolean:
+				rec[fieldName] = false
+			case orm.TypeDate, orm.TypeDatetime:
+				rec[fieldName] = false
+			default:
+				rec[fieldName] = false
+			}
+		}
+	}
+}
+
 // formatDateFields converts date/datetime values to Odoo's expected string format.
 func formatDateFields(model string, records []orm.Values) {
 	m := orm.Registry.Get(model)

pkg/service/db.go

@@ -250,26 +250,30 @@ func SeedWithSetup(ctx context.Context, pool *pgxpool.Pool, cfg SetupConfig) err
 		log.Printf("db: seeded %d German tax definitions", len(l10n_de.SKR03Taxes))
 	}
 
-	// 10. UI Views for key models
+	// 10. Stock reference data (locations, picking types, warehouse)
+	seedStockData(ctx, tx)
+
+	// 11. UI Views for key models
 	seedViews(ctx, tx)
 
-	// 11. Actions (ir_act_window + ir_model_data for XML IDs)
+	// 12. Actions (ir_act_window + ir_model_data for XML IDs)
 	seedActions(ctx, tx)
 
-	// 12. Menus (ir_ui_menu + ir_model_data for XML IDs)
+	// 13. Menus (ir_ui_menu + ir_model_data for XML IDs)
 	seedMenus(ctx, tx)
 
-	// 13. Demo data
+	// 14. Demo data
 	if cfg.DemoData {
 		seedDemoData(ctx, tx)
 	}
 
-	// 14. Reset sequences (each individually — pgx doesn't support multi-statement)
+	// 15. Reset sequences (each individually — pgx doesn't support multi-statement)
 	seqs := []string{
 		"res_currency", "res_country", "res_partner", "res_company",
 		"res_users", "ir_sequence", "account_journal", "account_account",
 		"account_tax", "sale_order", "sale_order_line", "account_move",
 		"ir_act_window", "ir_model_data", "ir_ui_menu",
+		"stock_location", "stock_picking_type", "stock_warehouse",
 	}
 	for _, table := range seqs {
 		tx.Exec(ctx, fmt.Sprintf(
@@ -285,6 +289,40 @@ func SeedWithSetup(ctx context.Context, pool *pgxpool.Pool, cfg SetupConfig) err
 	return nil
 }
 
+// seedStockData creates stock locations, picking types, and a default warehouse.
+// Mirrors: odoo/addons/stock/data/stock_data.xml
+func seedStockData(ctx context.Context, tx pgx.Tx) {
+	log.Println("db: seeding stock reference data...")
+
+	// Stock locations (hierarchical, mirroring Odoo's stock_data.xml)
+	tx.Exec(ctx, `
+		INSERT INTO stock_location (id, name, complete_name, usage, active, location_id, company_id) VALUES
+			(1, 'Physical Locations', 'Physical Locations', 'view', true, NULL, 1),
+			(2, 'Partner Locations', 'Partner Locations', 'view', true, NULL, 1),
+			(3, 'Virtual Locations', 'Virtual Locations', 'view', true, NULL, 1),
+			(4, 'WH', 'Physical Locations/WH', 'internal', true, 1, 1),
+			(5, 'Customers', 'Partner Locations/Customers', 'customer', true, 2, 1),
+			(6, 'Vendors', 'Partner Locations/Vendors', 'supplier', true, 2, 1)
+		ON CONFLICT (id) DO NOTHING`)
+
+	// Default warehouse (must come before picking types due to FK)
+	tx.Exec(ctx, `
+		INSERT INTO stock_warehouse (id, name, code, active, company_id, lot_stock_id, sequence)
+		VALUES (1, 'Main Warehouse', 'WH', true, 1, 4, 10)
+		ON CONFLICT (id) DO NOTHING`)
+
+	// Stock picking types (operation types for receipts, deliveries, internal transfers)
+	tx.Exec(ctx, `
+		INSERT INTO stock_picking_type (id, name, code, sequence_code, active, warehouse_id, company_id, sequence,
+			default_location_src_id, default_location_dest_id) VALUES
+			(1, 'Receipts', 'incoming', 'IN', true, 1, 1, 1, 6, 4),
+			(2, 'Delivery Orders', 'outgoing', 'OUT', true, 1, 1, 2, 4, 5),
+			(3, 'Internal Transfers', 'internal', 'INT', true, 1, 1, 3, 4, 4)
+		ON CONFLICT (id) DO NOTHING`)
+
+	log.Println("db: stock reference data seeded (6 locations, 3 picking types, 1 warehouse)")
+}
+
 // seedViews creates UI views for key models.
 func seedViews(ctx context.Context, tx pgx.Tx) {
 	log.Println("db: seeding UI views...")
@@ -428,6 +466,7 @@ func seedActions(ctx context.Context, tx pgx.Tx) {
 		{100, "Settings", "res.company", "form", "[]", "{}", "current", 80, 1, "base", "action_res_company_form"},
 		{101, "Users", "res.users", "list,form", "[]", "{}", "current", 80, 0, "base", "action_res_users"},
 		{102, "Sequences", "ir.sequence", "list,form", "[]", "{}", "current", 80, 0, "base", "ir_sequence_form"},
+		{103, "Change My Preferences", "res.users", "form", "[]", "{}", "new", 80, 0, "base", "action_res_users_my"},
 	}
 
 	for _, a := range actions {