model: CRUD methods only for targeted objects

A create, read, update or delete (CRUD) method should only care about
the object which provides the receiver and the relations to its child
objects.

For example the method

	func (r *Recipe) Create(tx *sql.Tx) error {}

should only create the relational data inside the database for the
recipe, not for the steps nested into this Recipe struct. This should be
covered by the

	func (s *Step) Create(tx *sql.Tx) error {}

method which is then called by `func (r *Recipe) Create()`.

This has the advantage that every CRUD method has a constraint scope and
is more unified since the Step CRUD methods now have a Step struct as
receiver instead of a Recipe receiver.

1 files changed, 1 insertions, 1 deletions

diff --git a/model/recipe_test.go b/model/recipe_test.go
index b9a44e1..508cf53 100644
--- a/model/recipe_test.go
+++ b/model/recipe_test.go
@@ -31,7 +31,7 @@ func TestRecipeCrud(t *testing.T) {
 	readback.Id = original.Id
 	err = readback.Read(tx)
 	if err != nil {
-		t.Fatalf("Failed to create test recipe in DB: %v\n", err)
+		t.Fatalf("Failed to read test recipe from DB: %v\n", err)
 	}
 
 	if !reflect.DeepEqual(original, readback) {