Файл: framework/dev/FixtureFactory.php
Строк: 234
<?php
/**
* Manages a set of database fixtures for {@link DataObject} records
* as well as raw database table rows.
*
* Delegates creation of objects to {@link FixtureBlueprint},
* which can implement class- and use-case specific fixture setup.
*
* Supports referencing model relations through a specialized syntax:
* <code>
* $factory = new FixtureFactory();
* $relatedObj = $factory->createObject(
* 'MyRelatedClass',
* 'relation1'
* );
* $obj = $factory->createObject(
* 'MyClass',
* 'object1'
* array('MyRelationName' => '=>MyRelatedClass.relation1')
* );
* </code>
* Relation loading is order dependant.
*
* @package framework
* @subpackage core
*/
class FixtureFactory {
/**
* @var array Array of fixture items, keyed by class and unique identifier,
* with values being the generated database ID. Does not store object instances.
*/
protected $fixtures = array();
/**
* @var array Callbacks
*/
protected $blueprints = array();
/**
* @param String $name Unique name for this blueprint
* @param array|FixtureBlueprint $defaults Array of default values, or a blueprint instance
*/
public function define($name, $defaults = array()) {
if($defaults instanceof FixtureBlueprint) {
$this->blueprints[$name] = $defaults;
} else {
$class = $name;
$this->blueprints[$name] = Injector::inst()->create(
'FixtureBlueprint', $name, $class, $defaults
);
}
return $this;
}
/**
* Writes the fixture into the database using DataObjects
*
* @param String $name Name of the {@link FixtureBlueprint} to use,
* usually a DataObject subclass.
* @param String $identifier Unique identifier for this fixture type
* @param Array $data Map of properties. Overrides default data.
* @return DataObject
*/
public function createObject($name, $identifier, $data = null) {
if(!isset($this->blueprints[$name])) {
$this->blueprints[$name] = new FixtureBlueprint($name);
}
$blueprint = $this->blueprints[$name];
$obj = $blueprint->createObject($identifier, $data, $this->fixtures);
$class = $blueprint->getClass();
if(!isset($this->fixtures[$class])) {
$this->fixtures[$class] = array();
}
$this->fixtures[$class][$identifier] = $obj->ID;
return $obj;
}
/**
* Writes the fixture into the database directly using a database manipulation.
* Does not use blueprints. Only supports tables with a primary key.
*
* @param String $table Existing database table name
* @param String $identifier Unique identifier for this fixture type
* @param Array $data Map of properties
* @return Int Database identifier
*/
public function createRaw($table, $identifier, $data) {
$fields = array();
foreach($data as $fieldName => $fieldVal) {
$fields[""{$fieldName}""] = $this->parseValue($fieldVal);
}
$insert = new SQLInsert(""{$table}"", $fields);
$insert->execute();
$id = DB::get_generated_id($table);
$this->fixtures[$table][$identifier] = $id;
return $id;
}
/**
* Get the ID of an object from the fixture.
* @param $className The data class, as specified in your fixture file. Parent classes won't work
* @param $identifier The identifier string, as provided in your fixture file
*/
public function getId($class, $identifier) {
if(isset($this->fixtures[$class][$identifier])) {
return $this->fixtures[$class][$identifier];
} else {
return false;
}
}
/**
* Return all of the IDs in the fixture of a particular class name.
*
* @return A map of fixture-identifier => object-id
*/
public function getIds($class) {
if(isset($this->fixtures[$class])) {
return $this->fixtures[$class];
} else {
return false;
}
}
/**
* @param String
* @param String $identifier
* @param Int $databaseId
*/
public function setId($class, $identifier, $databaseId) {
$this->fixtures[$class][$identifier] = $databaseId;
return $this;
}
/**
* Get an object from the fixture.
*
* @param $class The data class, as specified in your fixture file. Parent classes won't work
* @param $identifier The identifier string, as provided in your fixture file
*/
public function get($class, $identifier) {
$id = $this->getId($class, $identifier);
if($id) return DataObject::get_by_id($class, $id);
}
/**
* @return Array Map of class names, containing a map of in-memory identifiers
* mapped to database identifiers.
*/
public function getFixtures() {
return $this->fixtures;
}
/**
* Remove all fixtures previously defined through {@link createObject()}
* or {@link createRaw()}, both from the internal fixture mapping and the database.
* If the $class argument is set, limit clearing to items of this class.
*
* @param String $class
*/
public function clear($limitToClass = null) {
$classes = ($limitToClass) ? array($limitToClass) : array_keys($this->fixtures);
foreach($classes as $class) {
$ids = $this->fixtures[$class];
foreach($ids as $id => $dbId) {
if(class_exists($class)) {
$class::get()->byId($dbId)->delete();
} else {
$table = $class;
$delete = new SQLDelete(""$table"", array(
""$table"."ID"" => $dbId
));
$delete->execute();
}
unset($this->fixtures[$class][$id]);
}
}
}
/**
* @return Array Of {@link FixtureBlueprint} instances
*/
public function getBlueprints() {
return $this->blueprints;
}
/**
* @param String $name
* @return FixtureBlueprint
*/
public function getBlueprint($name) {
return (isset($this->blueprints[$name])) ? $this->blueprints[$name] : false;
}
/**
* Parse a value from a fixture file. If it starts with =>
* it will get an ID from the fixture dictionary
*
* @param String $fieldVal
* @return String Fixture database ID, or the original value
*/
protected function parseValue($value) {
if(substr($value,0,2) == '=>') {
// Parse a dictionary reference - used to set foreign keys
list($class, $identifier) = explode('.', substr($value,2), 2);
if($this->fixtures && !isset($this->fixtures[$class][$identifier])) {
throw new InvalidArgumentException(sprintf(
'No fixture definitions found for "%s"',
$value
));
}
return $this->fixtures[$class][$identifier];
} else {
// Regular field value setting
return $value;
}
}
}