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MAPG-156 extend PDM to be able to return with Generator

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Bence Pőcze 2020-06-25 20:24:37 +02:00
parent 910fdddf34
commit 70d8807f38
1 changed files with 42 additions and 23 deletions
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65
src/PersistentData/PersistentDataManager.php
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@ -1,5 +1,6 @@
<?php namespace MapGuesser\PersistentData;
use Generator;
use MapGuesser\Database\Query\Modify;
use MapGuesser\Database\Query\Select;
use MapGuesser\Interfaces\Database\IResultSet;
@ -9,30 +10,8 @@ class PersistentDataManager
{
public function selectFromDb(Select $select, string $type, bool $withRelations = false): ?Model
{
$table = call_user_func([$type, 'getTable']);
$fields = call_user_func([$type, 'getFields']);
$select = $this->createSelect($select, $type, $withRelations);
$select->from($table);
//TODO: only with some relations?
if ($withRelations) {
$relations = call_user_func([$type, 'getRelations']);
$columns = [];
foreach ($fields as $field) {
$columns[] = [$table, $field];
}
$columns = array_merge($columns, $this->getRelationColumns($relations));
$this->leftJoinRelations($select, $table, $relations);
$select->columns($columns);
} else {
$select->columns($fields);
}
//TODO: return with array?
$data = $select->execute()->fetch(IResultSet::FETCH_ASSOC);
if ($data === null) {
@ -45,6 +24,18 @@ class PersistentDataManager
return $model;
}
public function selectMultipleFromDb(Select $select, string $type, bool $withRelations = false): Generator
{
$select = $this->createSelect($select, $type, $withRelations);
while ($data = $select->execute()->fetch(IResultSet::FETCH_ASSOC)) {
$model = new $type();
$this->fillWithData($data, $model);
yield $model;
}
}
public function selectFromDbById($id, string $type, bool $withRelations = false): ?Model
{
$select = new Select(\Container::$dbConnection);
@ -136,6 +127,34 @@ class PersistentDataManager
$model->resetSnapshot();
}
private function createSelect(Select $select, string $type, bool $withRelations = false): Select
{
$table = call_user_func([$type, 'getTable']);
$fields = call_user_func([$type, 'getFields']);
$select->from($table);
//TODO: only with some relations?
if ($withRelations) {
$relations = call_user_func([$type, 'getRelations']);
$columns = [];
foreach ($fields as $field) {
$columns[] = [$table, $field];
}
$columns = array_merge($columns, $this->getRelationColumns($relations));
$this->leftJoinRelations($select, $table, $relations);
$select->columns($columns);
} else {
$select->columns($fields);
}
return $select;
}
private function getRelationColumns(array $relations): array
{
$columns = [];