field.Creatable = false
		field.Updatable = false
		if strings.ToLower(v) == "false" {
			field.Readable = false
		} else {
			field.Readable = true
		}
	}

	if v, ok := field.TagSettings["<-"]; ok {
		field.Creatable = true
		field.Updatable = true

		if v != "<-" {
			if !strings.Contains(v, "create") {
				field.Creatable = false
			}

		}
	} else {
		relation.JoinTable.Relationships.Relations[relRefName].References = []*Reference{}
	}

	// build references
	for _, f := range relation.JoinTable.Fields {
		if f.Creatable || f.Readable || f.Updatable {
			// use same data type for foreign keys
			if copyableDataType(fieldsMap[f.Name].DataType) {
				f.DataType = fieldsMap[f.Name].DataType
			}