fix: preserve eager information when validating models (#664)

executors.go

@@ -97,6 +97,10 @@ func (c *Connection) Save(model interface{}, excludeColumns ...string) error {
 // If model is a slice, each item of the slice is validated then created in the database.
 func (c *Connection) ValidateAndCreate(model interface{}, excludeColumns ...string) (*validate.Errors, error) {
 	sm := NewModel(model, c.Context())
+
+	isEager := c.eager
+	hasEagerFields := c.eagerFields
+
 	if err := sm.beforeValidate(c); err != nil {
 		return nil, err
 	}
@@ -155,6 +159,8 @@ func (c *Connection) ValidateAndCreate(model interface{}, excludeColumns ...stri
 		}
 	}
 
+	c.eager = isEager
+	c.eagerFields = hasEagerFields
 	return verrs, c.Create(model, excludeColumns...)
 }
 

pop_test.go

@@ -155,6 +155,10 @@ type Taxis []Taxi
 // Validate gets run every time you call a "Validate*" (ValidateAndSave, ValidateAndCreate, ValidateAndUpdate) method.
 // This method is not required and may be deleted.
 func (b *Book) Validate(tx *Connection) (*validate.Errors, error) {
+	// Execute another query to test if Validate causes eager creation to fail
+	if err := tx.All(&Taxis{}); err != nil {
+		return nil, err
+	}
 	return validate.Validate(
 		&validators.StringIsPresent{Field: b.Description, Name: "Description"},
 	), nil