public function loadModels(Models $models, $flags = null)
{
$models = $models->filter(function ($model) {
return $model->{$this->classKey};
});
$groups = Arr::groupBy($models->toArray(), function ($model) {
return $model->{$this->classKey};
});
foreach ($groups as $modelClass => &$models) {
$keys = Arr::pluckUniqueProperty($models, $this->key);
if ($keys) {
$models = $modelClass::whereIn($this->getForeignKey(), $keys)->setFlags($flags)->loadRaw();
} else {
$models = [];
}
}
return Arr::flatten($groups);
}
/**
* @param array|string $rels
*/
public function joinRels($rels)
{
$rels = Arr::toAssoc((array) $rels);
$this->joinNestedRels($this->getRepo(), $rels, $this->getRepo()->getTable());
return $this;
}
/**
* @return array
*/
public function getPublicPropertyNames()
{
$properties = $this->getProperties(ReflectionProperty::IS_PUBLIC);
return Arr::invoke($properties, 'getName');
}
/**
* @dataProvider dataGroupBy
*/
public function testGroupBy($array, $callback, $preserveKeys, $expected)
{
$this->assertSame($expected, Arr::groupBy($array, $callback, $preserveKeys));
}
/**
* Load all the models for the provided relations. This is the meat of the eager loading
*
* @param Models $models
* @param array $rels
* @param int $flags
* @return Repo $this
*/
public function loadAllRelsFor(Models $models, array $rels, $flags = null)
{
$rels = Arr::toAssoc($rels);
foreach ($rels as $relName => $childRels) {
$foreign = $this->loadRelFor($models, $relName, $flags);
if ($childRels) {
$rel = $this->getRel($relName);
$rel->getRepo()->loadAllRelsFor($foreign, $childRels, $flags);
}
}
return $this;
}