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yii2
Commit 142ea1f9 by Carsten Brandt
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relation support and unit tests

parent 7850c8d2
Showing with 0 additions and 196 deletions
framework/yii/redis/ActiveRecord.php
......@@ -404,200 +404,4 @@ abstract class ActiveRecord extends \yii\db\ActiveRecord
'multiple' => true,
));
}
/**
* Returns the relation object with the specified name.
* A relation is defined by a getter method which returns an [[ActiveRelation]] object.
* It can be declared in either the Active Record class itself or one of its behaviors.
* @param string $name the relation name
* @return ActiveRelation the relation object
* @throws InvalidParamException if the named relation does not exist.
*/
public function getRelation($name)
{
$getter = 'get' . $name;
try {
$relation = $this->$getter();
if ($relation instanceof ActiveRelation) {
return $relation;
}
} catch (UnknownMethodException $e) {
}
throw new InvalidParamException(get_class($this) . ' has no relation named "' . $name . '".');
}
/**
* Establishes the relationship between two models.
*
* The relationship is established by setting the foreign key value(s) in one model
* to be the corresponding primary key value(s) in the other model.
* The model with the foreign key will be saved into database without performing validation.
*
* If the relationship involves a pivot table, a new row will be inserted into the
* pivot table which contains the primary key values from both models.
*
* Note that this method requires that the primary key value is not null.
*
* @param string $name the name of the relationship
* @param ActiveRecord $model the model to be linked with the current one.
* @param array $extraColumns additional column values to be saved into the pivot table.
* This parameter is only meaningful for a relationship involving a pivot table
* (i.e., a relation set with `[[ActiveRelation::via()]]` or `[[ActiveRelation::viaTable()]]`.)
* @throws InvalidCallException if the method is unable to link two models.
*/
public function link($name, $model, $extraColumns = array())
{
$relation = $this->getRelation($name);
if ($relation->via !== null) {
// TODO
} else {
$p1 = $model->isPrimaryKey(array_keys($relation->link));
$p2 = $this->isPrimaryKey(array_values($relation->link));
if ($p1 && $p2) {
if ($this->getIsNewRecord() && $model->getIsNewRecord()) {
throw new InvalidCallException('Unable to link models: both models are newly created.');
} elseif ($this->getIsNewRecord()) {
$this->bindModels(array_flip($relation->link), $this, $model);
} else {
$this->bindModels($relation->link, $model, $this);
}
} elseif ($p1) {
$this->bindModels(array_flip($relation->link), $this, $model);
} elseif ($p2) {
$this->bindModels($relation->link, $model, $this);
} else {
throw new InvalidCallException('Unable to link models: the link does not involve any primary key.');
}
}
// update lazily loaded related objects
if (!$relation->multiple) {
$this->_related[$name] = $model;
} elseif (isset($this->_related[$name])) {
if ($relation->indexBy !== null) {
$indexBy = $relation->indexBy;
$this->_related[$name][$model->$indexBy] = $model;
} else {
$this->_related[$name][] = $model;
}
}
}
/**
* @param array $link
* @param ActiveRecord $foreignModel
* @param ActiveRecord $primaryModel
* @throws InvalidCallException
*/
private function bindModels($link, $foreignModel, $primaryModel)
{
foreach ($link as $fk => $pk) {
$value = $primaryModel->$pk;
if ($value === null) {
throw new InvalidCallException('Unable to link models: the primary key of ' . get_class($primaryModel) . ' is null.');
}
$foreignModel->$fk = $value;
}
$foreignModel->save(false);
}
/**
* Destroys the relationship between two models.
*
* The model with the foreign key of the relationship will be deleted if `$delete` is true.
* Otherwise, the foreign key will be set null and the model will be saved without validation.
*
* @param string $name the name of the relationship.
* @param ActiveRecord $model the model to be unlinked from the current one.
* @param boolean $delete whether to delete the model that contains the foreign key.
* If false, the model's foreign key will be set null and saved.
* If true, the model containing the foreign key will be deleted.
* @throws InvalidCallException if the models cannot be unlinked
*/
public function unlink($name, $model, $delete = false)
{
// TODO
$relation = $this->getRelation($name);
if ($relation->via !== null) {
if (is_array($relation->via)) {
/** @var $viaRelation ActiveRelation */
list($viaName, $viaRelation) = $relation->via;
/** @var $viaClass ActiveRecord */
$viaClass = $viaRelation->modelClass;
$viaTable = $viaClass::tableName();
unset($this->_related[strtolower($viaName)]);
} else {
$viaRelation = $relation->via;
$viaTable = reset($relation->via->from);
}
$columns = array();
foreach ($viaRelation->link as $a => $b) {
$columns[$a] = $this->$b;
}
foreach ($relation->link as $a => $b) {
$columns[$b] = $model->$a;
}
$command = static::getDb()->createCommand();
if ($delete) {
$command->delete($viaTable, $columns)->execute();
} else {
$nulls = array();
foreach (array_keys($columns) as $a) {
$nulls[$a] = null;
}
$command->update($viaTable, $nulls, $columns)->execute();
}
} else {
$p1 = $model->isPrimaryKey(array_keys($relation->link));
$p2 = $this->isPrimaryKey(array_values($relation->link));
if ($p1 && $p2 || $p2) {
foreach ($relation->link as $a => $b) {
$model->$a = null;
}
$delete ? $model->delete() : $model->save(false);
} elseif ($p1) {
foreach ($relation->link as $b) {
$this->$b = null;
}
$delete ? $this->delete() : $this->save(false);
} else {
throw new InvalidCallException('Unable to unlink models: the link does not involve any primary key.');
}
}
if (!$relation->multiple) {
unset($this->_related[$name]);
} elseif (isset($this->_related[$name])) {
/** @var $b ActiveRecord */
foreach ($this->_related[$name] as $a => $b) {
if ($model->getPrimaryKey() == $b->getPrimaryKey()) {
unset($this->_related[$name][$a]);
}
}
}
}
/**
* TODO duplicate code, refactor
* @param array $keys
* @return boolean
*/
private function isPrimaryKey($keys)
{
$pks = $this->primaryKey();
foreach ($keys as $key) {
if (!in_array($key, $pks, true)) {
return false;
}
}
return true;
}
// TODO implement link and unlink
}
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