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fix(09): WR-04 apply a form field's required flag only in the contexts that can supply it

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This commit is contained in:
Jakub Zych
2026-10-01 21:05:33 +02:00
parent f2ab93f291
commit b8084080cb
2 changed files with 35 additions and 3 deletions
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9
modules/cabana/crud.go
View File

@@ -335,7 +335,7 @@ func (s CRUDService) save(ctx context.Context, cc *CompiledController, id any, i
return &CapabilityError{ControllerID: controllerID(cc)}
}
}
rules := mergedRules(cc, target)
rules := mergedRules(cc, target, op)
msgs, err := lagoon.Validate(ctx, tx, target, rules, valuesForRules(target, rules), nil)
if err != nil {
return &CapabilityError{ControllerID: controllerID(cc)}
@@ -689,7 +689,10 @@ func fillAllowed(cc *CompiledController, model any, op string) []string {
return out
}
func mergedRules(cc *CompiledController, model any) map[string]string {
// mergedRules combines the model's rules with the form's `required` flags. A
// field whose `context` hides it on op cannot be supplied there, so its form
// level `required` does not apply to that operation.
func mergedRules(cc *CompiledController, model any, op string) map[string]string {
out := map[string]string{}
if rules, ok := model.(hasRules); ok && rules != nil {
for key, rule := range rules.Rules() {
@@ -702,7 +705,7 @@ func mergedRules(cc *CompiledController, model any) map[string]string {
for _, field := range cc.Form.Fields {
// Relation fields are not writable columns. required stays on the
// schema for the client, but it cannot be checked by Fill.
if field.Required && scalarFormField(field.Type) {
if field.Required && scalarFormField(field.Type) && contextAllows(cc, field.Name, op) {
out[field.Name] = mergeRequired(out[field.Name])
}
}

29
modules/cabana/crud_test.go
View File

@@ -608,3 +608,32 @@ func TestIsJSONScalar(t *testing.T) {
type scalarAsArray string
func (s scalarAsArray) MarshalJSON() ([]byte, error) { return json.Marshal([]string{string(s)}) }
// TestCRUDRequiredFollowsContext pins WR-04: a form field that is `required`
// but limited to the update context cannot be supplied on create, so it must
// not make every create fail; it still binds on update.
func TestCRUDRequiredFollowsContext(t *testing.T) {
svc, cc, db := crudFixture(t)
for i := range cc.Form.Fields {
if cc.Form.Fields[i].Name == "note" {
cc.Form.Fields[i].Required = true
cc.Form.Fields[i].Context = &fieldContext{values: []string{"update"}}
}
}
created, err := svc.CreateRecord(context.Background(), cc, RecordInput{Body: crudBody(t, `{"name":"Ada"}`)})
if err != nil {
t.Fatalf("create with an update-only required field: %v", err)
}
id := created.Data["id"]
if _, err := svc.UpdateRecord(context.Background(), cc, id, RecordInput{Body: crudBody(t, `{"name":"Bea"}`)}); err == nil {
t.Fatal("update without the required update-context field succeeded")
} else {
assertValidation(t, err, "note", "The note field is required.")
}
if _, err := svc.UpdateRecord(context.Background(), cc, id, RecordInput{Body: crudBody(t, `{"name":"Bea","note":"n"}`)}); err != nil {
t.Fatalf("update with the field: %v", err)
}
if row := loadCrud(t, db, "Bea"); row.Note != "n" {
t.Fatalf("row=%+v", row)
}
}