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Implement simple pagination

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This commit is contained in:
Ahmed Ashraf
2020-06-26 12:20:01 +02:00
parent baa9819daf
commit e960ffb825
5 changed files with 74 additions and 7 deletions
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29
app/Server/UserRepository/DatabaseUserRepository.php
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@@ -31,6 +31,35 @@ class DatabaseUserRepository implements UserRepository
return $deferred->promise();
}
public function paginateUsers(int $perPage, int $currentPage): PromiseInterface
{
$deferred = new Deferred();
$this->database
->query('SELECT * FROM users ORDER by created_at DESC LIMIT :limit OFFSET :offset', [
'limit' => $perPage + 1,
'offset' => $currentPage < 2 ? 0 : ($currentPage - 1) * $perPage,
])
->then(function (Result $result) use ($deferred, $perPage, $currentPage) {
if(count($result->rows) == $perPage + 1) {
array_pop($result->rows);
$nextPage = $currentPage + 1;
}
$paginated = [
'users' => $result->rows,
'current_page' => $currentPage,
'per_page' => $perPage,
'next_page' => $nextPage ?? null,
'previous_page' => $currentPage > 1 ? $currentPage - 1 : null,
];
$deferred->resolve($paginated);
});
return $deferred->promise();
}
public function getUserById($id): PromiseInterface
{
$deferred = new Deferred();