Matches the values with the supplied values according to the supplied filter,
groups the the joined values for every original and then maps into as
according to the supplied function.
/**
* @dataProvider assocMixedValues
*/
public function testCalledWithCorrectValueAndKeyParameters(\Pinq\ITraversable $traversable, array $data)
{
$traversable->groupJoin([0 => 0])->on(function ($outer, $inner, $outerKey, $innerKey) use($data) {
$this->assertSame($data[$outerKey], $outer);
$this->assertSame($inner, 0);
$this->assertSame($innerKey, 0);
return true;
})->to(function ($outer, \Pinq\ITraversable $group, $outerKey, $groupKey) use($data) {
$this->assertSame($data[$outerKey], $outer);
$this->assertSame($group->asArray(), [0 => 0]);
$this->assertSame($groupKey, 0);
})->asArray();
$traversable->groupJoin([0 => 0])->onEquality(function ($outer, $outerKey) use($data) {
$this->assertSame($data[$outerKey], $outer);
return 'group Key';
}, function ($inner, $innerKey) {
$this->assertSame($inner, 0);
$this->assertSame($innerKey, 0);
return 'group Key';
})->to(function ($outer, \Pinq\ITraversable $group, $outerKey, $groupKey) use($data) {
$this->assertSame($data[$outerKey], $outer);
$this->assertSame($group->asArray(), [0 => 0]);
$this->assertSame($groupKey, 'group Key');
})->asArray();
}
/**
* @dataProvider people
*/
public function testGroupJoinToSelfWithCondition(\Pinq\ITraversable $traversable, array $data)
{
$joinedlastNames = $traversable->groupJoin($traversable)->onEquality(function ($outer) {
return $outer['firstName'][0];
}, function ($inner) {
return $inner['lastName'][0];
})->to(function ($person, \Pinq\ITraversable $joinedPeople) {
return $person['firstName'] . '{' . $joinedPeople->implode(',', function ($person) {
return $person['lastName'];
}) . '}';
})->implode(':');
$this->assertEquals('Zoe{}:Alex{}:Daniel{Denali,Desopolous,Dekresta}:Casy{}:Dave{Denali,Desopolous,Dekresta}:' . 'Hugo{}:Sandy{}:Beth{Black,Baronksy}:David{Denali,Desopolous,Dekresta}:Daniel{Denali,Desopolous,Dekresta}', $joinedlastNames);
}
/**
* Evaluates the join segment values and filter upon the supplied traversable.
*
* @param ITraversable $traversable
* @param Common\Join\Options $join
* @param Queries\IResolvedParameterRegistry $resolvedParameters
*
* @return \Pinq\Interfaces\IJoiningToTraversable
*/
public static function evaluateJoinOptions(ITraversable $traversable, Common\Join\Options $join, Queries\IResolvedParameterRegistry $resolvedParameters)
{
$values = self::evaluateSource($join->getSource(), $resolvedParameters);
$joiningTraversable = $join->isGroupJoin() ? $traversable->groupJoin($values) : $traversable->join($values);
if ($join->hasFilter()) {
$filter = $join->getFilter();
if ($filter instanceof Common\Join\Filter\Custom) {
$joiningTraversable = $joiningTraversable->on($resolvedParameters[$filter->getOnFunction()->getCallableId()]);
} elseif ($filter instanceof Common\Join\Filter\Equality) {
$joiningTraversable = $joiningTraversable->onEquality($resolvedParameters[$filter->getOuterKeyFunction()->getCallableId()], $resolvedParameters[$filter->getInnerKeyFunction()->getCallableId()]);
}
}
if ($join->hasDefault()) {
$joiningTraversable = $joiningTraversable->withDefault($resolvedParameters[$join->getDefaultValueId()], $resolvedParameters[$join->getDefaultKeyId()]);
}
return $joiningTraversable;
}
