// Extend extends target schema
func (schema *Schema) Extend(fromSchema *Schema) error {
if schema.Parent == "" {
schema.Parent = fromSchema.Parent
}
if schema.Prefix == "" {
schema.Prefix = fromSchema.Prefix
}
if schema.URL == "" {
schema.URL = fromSchema.URL
}
if schema.NamespaceID == "" {
schema.NamespaceID = fromSchema.NamespaceID
}
schema.JSONSchema["properties"] = util.ExtendMap(
util.MaybeMap(schema.JSONSchema["properties"]),
util.MaybeMap(fromSchema.JSONSchema["properties"]))
schema.JSONSchema["propertiesOrder"] = util.ExtendStringList(
util.MaybeStringList(fromSchema.JSONSchema["propertiesOrder"]),
util.MaybeStringList(schema.JSONSchema["propertiesOrder"]))
MergeAction:
for _, action := range fromSchema.Actions {
for _, existingAction := range schema.Actions {
if action.ID == existingAction.ID {
continue MergeAction
}
}
schema.Actions = append(schema.Actions, action)
}
schema.Metadata = util.ExtendMap(schema.Metadata, fromSchema.Metadata)
return schema.Init()
}
func (schema *Schema) relatedSchemas() []string {
schemas := []string{}
for _, p := range schema.Properties {
if p.Relation != "" {
schemas = append(schemas, p.Relation)
}
}
schemas = util.ExtendStringList(schemas, schema.Extends)
return schemas
}