fix: model gen issues

templates/project/database/fields/common.go.tpl

@@ -0,0 +1,32 @@
+package fields
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+
+	"github.com/samber/lo"
+)
+
+// implement sql.Scanner interface
+type field struct{}
+
+func (x *field) Scan(value interface{}) (err error) {
+	switch v := value.(type) {
+	case string:
+		return json.Unmarshal([]byte(v), &x)
+	case []byte:
+		return json.Unmarshal(v, &x)
+	case *string:
+		return json.Unmarshal([]byte(*v), &x)
+	}
+	return errors.New("Unknown type for ")
+}
+
+func (x field) Value() (driver.Value, error) {
+	return json.Marshal(x)
+}
+
+func (x field) MustValue() driver.Value {
+	return lo.Must(json.Marshal(x))
+}