fix: types in m2m

common/model_methods.go

@@ -0,0 +1,10 @@
+package common
+
+func (model *Model) HasPrimaryKey() bool {
+	for _, field := range model.Fields {
+		if field.Tags.HasParam("primaryKey") || field.Tags.HasOption("primaryKey") {
+			return true
+		}
+	}
+	return false
+}