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make it possible to use the same table in multiple joins

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Bence Pőcze 2023-05-01 14:29:11 +02:00
parent 88a2a99527
commit a76a1bcceb
Signed by: bence
GPG Key ID: DC5BD6E95A333E6D
1 changed files with 25 additions and 6 deletions
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31
src/PersistentData/PersistentDataManager.php
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@ -150,7 +150,7 @@ class PersistentDataManager implements IPersistentDataManager
$columns = array_merge($columns, $this->getRelationColumns($relations, $withRelations));
$this->leftJoinRelations($select, $table, $relations, $withRelations);
$this->leftJoinRelations($select, $table, $relations, $withRelations, [$table => true]);
$select->columns($columns);
} else {
$select->columns($columns);
@ -179,20 +179,39 @@ class PersistentDataManager implements IPersistentDataManager
return $columns;
}
private function leftJoinRelations(Select $select, string $table, array $relations, array $withRelations): void
private function leftJoinRelations(Select $select, string $table, array $relations, array $withRelations, array &$alreadyUsedTableAliases): void
{
foreach ($relations as $relation => $relationType) {
$relationTable = call_user_func([$relationType, 'getTable']);
$relationTable = $this->generateTableAlias($select, call_user_func([$relationType, 'getTable']), $alreadyUsedTableAliases);
$select->leftJoin($relationTable, [$relationTable, 'id'], '=', [$table, $relation . '_id']);
$nextOrderRelations = call_user_func([$relationType, 'getRelations']);
$relationsOfRelation = call_user_func([$relationType, 'getRelations']);
if (count($withRelations)) {
$nextOrderRelations = array_intersect_key($nextOrderRelations, array_flip($withRelations));
$relationsOfRelation = array_intersect_key($relationsOfRelation, array_flip($withRelations));
}
$this->leftJoinRelations($select, $relationTable, $nextOrderRelations, $withRelations);
$this->leftJoinRelations($select, $relationTable, $relationsOfRelation, $withRelations, $alreadyUsedTableAliases);
}
}
private function generateTableAlias(Select $select, string $table, array &$alreadyUsedTableAliases)
{
if (!isset($alreadyUsedTableAliases[$table])) {
$alreadyUsedTableAliases[$table] = true;
return $table;
}
$i = 2;
do {
$alias = $table[0] . $i;
$i++;
} while (isset($alreadyUsedTableAliases[$alias]));
$select->setTableAliases([$alias => $table]);
$alreadyUsedTableAliases[$alias] = true;
return $alias;
}
private function fillWithData(array &$data, Model $model, array $withRelations = [], ?string $modelKey = null): void
{
$relations = $model::getRelations();