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<?php
namespace Lightscale\LaralightTables;
use Livewire\Component;
use Livewire\WithPagination;
use Livewire\Attributes\Url;
use Illuminate\Pagination\Paginator;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Str;
use Illuminate\Support\Collection;
use Exception;
abstract class TableComponent extends Component
{
use WithPagination;
// Config
protected $paginationTheme = 'bootstrap';
protected $model = null;
protected int $defaultPageSize = 10;
// Properties
#[Url]
public string $search = '';
#[Url]
public int $pageSize;
public array $activeColumns = [];
public function mount()
{
$this->setDefaultActiveColumns();
$this->setDefaultPageSize();
}
protected function setDefaultPageSize(): void
{
if (!isset($this->pageSize)) {
$this->pageSize = $this->defaultPageSize;
}
}
protected function setDefaultActiveColumns(): void
{
foreach($this->getColumns() as $column) {
$this->activeColumns[] = $column->name;
}
}
protected function isSearching(): bool
{
$search = $this->getToolbar()->getSearch();
return $search !== null && Str::length($this->search) >= $search->getMinLength();
}
public function updatedSearch(): void
{
if ($this->isSearching()) {
$this->resetPage();
}
}
protected function toolbar(): ?Toolbar
{
return null;
}
private ?Toolbar $toolbarCache;
protected function getToolbar(): ?Toolbar
{
if (!isset($this->_toolbar)) {
$this->toolbar = $this->toolbar();
}
return $this->toolbar;
}
protected function query() : Builder
{
if($this->model === null) {
throw new Exception('Requires $model to be set or query() method to be overridden');
}
return $this->model::query();
}
abstract protected function columns() : array;
protected function search(Builder $builder, string $search) : void {}
protected function buildQuery() : Builder
{
$query = $this->query();
if ($this->isSearching()) {
$this->search($query, $this->search);
}
return $query;
}
private ?Collection $columnsCache = null;
public function getColumns()
{
if($this->columnsCache === null) {
$this->columnsCache = collect($this->columns())->each(
fn($c) => $c->setTable($this)
);
}
return $this->columnsCache;
}
public function render()
{
$data = $this->buildQuery()->paginate($this->pageSize);
$allColumns = $this->getColumns();
$columns = $allColumns->filter(fn($c) => in_array($c->name,$this->activeColumns));
$toolbar = $this->toolbar();
Paginator::defaultView('laralight-tables::pagination');
return view('laralight-tables::table', compact(
'data', 'allColumns', 'columns', 'toolbar',
));
}
}
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