/**
* For schema class, get its reference schema classes recursively.
*
* @param boolean $recursive
*/
public function getReferenceSchemas($recursive = true)
{
$schemas = array();
foreach ($this->relations as $rel) {
if (!isset($rel['foreign_schema'])) {
continue;
}
$class = ltrim($rel['foreign_schema'], '\\');
if (isset($schemas[$class])) {
continue;
}
if (!class_exists($class, true)) {
throw new RuntimeException("Foreign schema class {$class} not found.");
}
if (is_a($class, 'LazyRecord\\BaseModel', true)) {
// bless model class to schema object.
if (!method_exists($class, 'schema')) {
throw new Exception(get_class($this) . ": You need to define schema method in {$class} class.");
}
$schemas[$class] = 1;
$model = new $class();
$schema = new DynamicSchemaDeclare($model);
if ($recursive) {
$schemas = array_merge($schemas, $schema->getReferenceSchemas(false));
}
} elseif (is_subclass_of($class, 'LazyRecord\\Schema\\DeclareSchema', true)) {
$schemas[$class] = 1;
$fs = new $class();
if ($recursive) {
$schemas = array_merge($schemas, $fs->getReferenceSchemas(false));
}
} else {
throw new InvalidArgumentException("Foreign schema class {$class} is not a SchemaDeclare class");
}
}
return $schemas;
}
