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<?php
namespace Yajra\DataTables;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Illuminate\Support\Traits\Macroable;
use Psr\Log\LoggerInterface;
use Yajra\DataTables\Contracts\DataTable;
use Yajra\DataTables\Contracts\Formatter;
use Yajra\DataTables\Exceptions\Exception;
use Yajra\DataTables\Processors\DataProcessor;
use Yajra\DataTables\Utilities\Helper;
/**
* @method static setTransformer($transformer)
* @method static setSerializer($transformer)
*
* @property-read mixed $transformer
* @property-read mixed $serializer
*
* @see https://github.com/yajra/laravel-datatables-fractal for transformer related methods.
*/
abstract class DataTableAbstract implements DataTable
{
use Macroable;
/**
* DataTables Request object.
*
* @var \Yajra\DataTables\Utilities\Request
*/
public Utilities\Request $request;
/**
* @var \Psr\Log\LoggerInterface|null
*/
protected ?LoggerInterface $logger = null;
/**
* Array of result columns/fields.
*
* @var array|null
*/
protected ?array $columns = [];
/**
* DT columns definitions container (add/edit/remove/filter/order/escape).
*
* @var array
*/
protected array $columnDef = [
'index' => false,
'append' => [],
'edit' => [],
'filter' => [],
'order' => [],
'only' => null,
'hidden' => [],
'visible' => [],
];
/**
* Extra/Added columns.
*
* @var array
*/
protected array $extraColumns = [];
/**
* Total records.
*
* @var int|null
*/
protected ?int $totalRecords = null;
/**
* Total filtered records.
*
* @var int|null
*/
protected ?int $filteredRecords = null;
/**
* Auto-filter flag.
*
* @var bool
*/
protected bool $autoFilter = true;
/**
* Callback to override global search.
*
* @var callable
*/
protected $filterCallback = null;
/**
* DT row templates container.
*
* @var array
*/
protected array $templates = [
'DT_RowId' => '',
'DT_RowClass' => '',
'DT_RowData' => [],
'DT_RowAttr' => [],
];
/**
* Custom ordering callback.
*
* @var callable|null
*/
protected $orderCallback = null;
/**
* Skip pagination as needed.
*
* @var bool
*/
protected bool $skipPaging = false;
/**
* Array of data to append on json response.
*
* @var array
*/
protected array $appends = [];
/**
* @var \Yajra\DataTables\Utilities\Config
*/
protected Utilities\Config $config;
/**
* @var mixed
*/
protected mixed $serializer;
/**
* @var array
*/
protected array $searchPanes = [];
protected mixed $transformer;
/**
* Can the DataTable engine be created with these parameters.
*
* @param mixed $source
* @return bool
*/
public static function canCreate($source)
{
return false;
}
/**
* Factory method, create and return an instance for the DataTable engine.
*
* @param mixed $source
* @return static
*/
public static function create($source)
{
return new static($source);
}
/**
* @param string|array $columns
* @param string|\Yajra\DataTables\Contracts\Formatter $formatter
* @return $this
*
* @throws \Yajra\DataTables\Exceptions\Exception
*/
public function formatColumn($columns, $formatter): static
{
if (is_string($formatter) && class_exists($formatter)) {
$formatter = app($formatter);
}
if ($formatter instanceof Formatter) {
foreach ((array) $columns as $column) {
$this->addColumn($column.'_formatted', $formatter);
}
return $this;
}
throw new Exception('$formatter must be an instance of '.Formatter::class);
}
/**
* Add column in collection.
*
* @param string $name
* @param string|callable|Formatter $content
* @param bool|int $order
* @return $this
*/
public function addColumn($name, $content, $order = false): static
{
$this->extraColumns[] = $name;
$this->columnDef['append'][] = ['name' => $name, 'content' => $content, 'order' => $order];
return $this;
}
/**
* Add DT row index column on response.
*
* @return $this
*/
public function addIndexColumn(): static
{
$this->columnDef['index'] = true;
return $this;
}
/**
* Edit column's content.
*
* @param string $name
* @param string|callable $content
* @return $this
*/
public function editColumn($name, $content): static
{
$this->columnDef['edit'][] = ['name' => $name, 'content' => $content];
return $this;
}
/**
* Remove column from collection.
*
* @return $this
*/
public function removeColumn(): static
{
$names = func_get_args();
$this->columnDef['excess'] = array_merge($this->getColumnsDefinition()['excess'], $names);
return $this;
}
/**
* Get columns definition.
*
* @return array
*/
protected function getColumnsDefinition(): array
{
$config = (array) $this->config->get('datatables.columns');
$allowed = ['excess', 'escape', 'raw', 'blacklist', 'whitelist'];
return array_replace_recursive(Arr::only($config, $allowed), $this->columnDef);
}
/**
* Get only selected columns in response.
*
* @param array $columns
* @return $this
*/
public function only(array $columns = []): static
{
$this->columnDef['only'] = $columns;
return $this;
}
/**
* Declare columns to escape values.
*
* @param string|array $columns
* @return $this
*/
public function escapeColumns($columns = '*'): static
{
$this->columnDef['escape'] = $columns;
return $this;
}
/**
* Add a makeHidden() to the row object.
*
* @param array $attributes
* @return $this
*/
public function makeHidden(array $attributes = []): static
{
$hidden = (array) Arr::get($this->columnDef, 'hidden', []);
$this->columnDef['hidden'] = array_merge_recursive($hidden, $attributes);
return $this;
}
/**
* Add a makeVisible() to the row object.
*
* @param array $attributes
* @return $this
*/
public function makeVisible(array $attributes = []): static
{
$visible = (array) Arr::get($this->columnDef, 'visible', []);
$this->columnDef['visible'] = array_merge_recursive($visible, $attributes);
return $this;
}
/**
* Set columns that should not be escaped.
* Optionally merge the defaults from config.
*
* @param array $columns
* @param bool $merge
* @return $this
*/
public function rawColumns(array $columns, $merge = false): static
{
if ($merge) {
/** @var array[] $config */
$config = $this->config->get('datatables.columns');
$this->columnDef['raw'] = array_merge($config['raw'], $columns);
} else {
$this->columnDef['raw'] = $columns;
}
return $this;
}
/**
* Sets DT_RowClass template.
* result: <tr class="output_from_your_template">.
*
* @param string|callable $content
* @return $this
*/
public function setRowClass($content): static
{
$this->templates['DT_RowClass'] = $content;
return $this;
}
/**
* Sets DT_RowId template.
* result: <tr id="output_from_your_template">.
*
* @param string|callable $content
* @return $this
*/
public function setRowId($content): static
{
$this->templates['DT_RowId'] = $content;
return $this;
}
/**
* Set DT_RowData templates.
*
* @param array $data
* @return $this
*/
public function setRowData(array $data): static
{
$this->templates['DT_RowData'] = $data;
return $this;
}
/**
* Add DT_RowData template.
*
* @param string $key
* @param string|callable $value
* @return $this
*/
public function addRowData($key, $value): static
{
$this->templates['DT_RowData'][$key] = $value;
return $this;
}
/**
* Set DT_RowAttr templates.
* result: <tr attr1="attr1" attr2="attr2">.
*
* @param array $data
* @return $this
*/
public function setRowAttr(array $data): static
{
$this->templates['DT_RowAttr'] = $data;
return $this;
}
/**
* Add DT_RowAttr template.
*
* @param string $key
* @param string|callable $value
* @return $this
*/
public function addRowAttr($key, $value): static
{
$this->templates['DT_RowAttr'][$key] = $value;
return $this;
}
/**
* Append data on json response.
*
* @param mixed $key
* @param mixed $value
* @return $this
*/
public function with($key, $value = ''): static
{
if (is_array($key)) {
$this->appends = $key;
} else {
$this->appends[$key] = value($value);
}
return $this;
}
/**
* Add with query callback value on response.
*
* @param string $key
* @param callable $value
* @return $this
*/
public function withQuery(string $key, callable $value): static
{
$this->appends[$key] = $value;
return $this;
}
/**
* Override default ordering method with a closure callback.
*
* @param callable $closure
* @return $this
*/
public function order(callable $closure): static
{
$this->orderCallback = $closure;
return $this;
}
/**
* Update list of columns that is not allowed for search/sort.
*
* @param array $blacklist
* @return $this
*/
public function blacklist(array $blacklist): static
{
$this->columnDef['blacklist'] = $blacklist;
return $this;
}
/**
* Update list of columns that is allowed for search/sort.
*
* @param string|array $whitelist
* @return $this
*/
public function whitelist(array|string $whitelist = '*'): static
{
$this->columnDef['whitelist'] = $whitelist;
return $this;
}
/**
* Set smart search config at runtime.
*
* @param bool $state
* @return $this
*/
public function smart(bool $state = true): static
{
$this->config->set('datatables.search.smart', $state);
return $this;
}
/**
* Set starts_with search config at runtime.
*
* @param bool $state
* @return $this
*/
public function startsWithSearch(bool $state = true): static
{
$this->config->set('datatables.search.starts_with', $state);
return $this;
}
/**
* Set multi_term search config at runtime.
*
* @param bool $multiTerm
* @return $this
*/
public function setMultiTerm(bool $multiTerm = true): static
{
$this->config->set('datatables.search.multi_term', $multiTerm);
return $this;
}
/**
* Set total records manually.
*
* @param int $total
* @return $this
*/
public function setTotalRecords(int $total): static
{
$this->totalRecords = $total;
return $this;
}
/**
* Skip total records and set the recordsTotal equals to recordsFiltered.
* This will improve the performance by skipping the total count query.
*
* @return $this
*
* @deprecated Just use setTotalRecords instead.
*/
public function skipTotalRecords(): static
{
$this->totalRecords = 0;
return $this;
}
/**
* Set filtered records manually.
*
* @param int $total
* @return $this
*/
public function setFilteredRecords(int $total): static
{
$this->filteredRecords = $total;
return $this;
}
/**
* Skip pagination as needed.
*
* @return $this
*/
public function skipPaging(): static
{
$this->skipPaging = true;
return $this;
}
/**
* Push a new column name to blacklist.
*
* @param string $column
* @return $this
*/
public function pushToBlacklist($column): static
{
if (! $this->isBlacklisted($column)) {
$this->columnDef['blacklist'][] = $column;
}
return $this;
}
/**
* Check if column is blacklisted.
*
* @param string $column
* @return bool
*/
protected function isBlacklisted($column): bool
{
$colDef = $this->getColumnsDefinition();
if (in_array($column, $colDef['blacklist'])) {
return true;
}
if ($colDef['whitelist'] === '*' || in_array($column, $colDef['whitelist'])) {
return false;
}
return true;
}
/**
* Perform sorting of columns.
*
* @return void
*/
public function ordering(): void
{
if ($this->orderCallback) {
call_user_func($this->orderCallback, $this->resolveCallbackParameter());
} else {
$this->defaultOrdering();
}
}
/**
* Resolve callback parameter instance.
*
* @return mixed
*/
abstract protected function resolveCallbackParameter();
/**
* Perform default query orderBy clause.
*
* @return void
*/
abstract protected function defaultOrdering(): void;
/**
* Set auto filter off and run your own filter.
* Overrides global search.
*
* @param callable $callback
* @param bool $globalSearch
* @return $this
*/
public function filter(callable $callback, $globalSearch = false): static
{
$this->autoFilter = $globalSearch;
$this->filterCallback = $callback;
return $this;
}
/**
* Convert the object to its JSON representation.
*
* @param int $options
* @return \Illuminate\Http\JsonResponse
*/
public function toJson($options = 0)
{
if ($options) {
$this->config->set('datatables.json.options', $options);
}
return $this->make();
}
/**
* Add a search pane options on response.
*
* @param string $column
* @param mixed $options
* @param callable|null $builder
* @return $this
*/
public function searchPane($column, $options, callable $builder = null): static
{
$options = value($options);
if ($options instanceof Arrayable) {
$options = $options->toArray();
}
$this->searchPanes[$column]['options'] = $options;
$this->searchPanes[$column]['builder'] = $builder;
return $this;
}
/**
* Convert instance to array.
*
* @return array
*/
public function toArray(): array
{
return (array) $this->make()->getData(true);
}
/**
* Perform necessary filters.
*
* @return void
*/
protected function filterRecords(): void
{
if ($this->autoFilter && $this->request->isSearchable()) {
$this->filtering();
}
if (is_callable($this->filterCallback)) {
call_user_func($this->filterCallback, $this->resolveCallbackParameter());
}
$this->columnSearch();
$this->searchPanesSearch();
$this->filteredCount();
}
/**
* Perform global search.
*
* @return void
*/
public function filtering(): void
{
$keyword = $this->request->keyword();
if ($this->config->isMultiTerm()) {
$this->smartGlobalSearch($keyword);
return;
}
$this->globalSearch($keyword);
}
/**
* Perform multi-term search by splitting keyword into
* individual words and searches for each of them.
*
* @param string $keyword
* @return void
*/
protected function smartGlobalSearch($keyword): void
{
collect(explode(' ', $keyword))
->reject(function ($keyword) {
return trim($keyword) === '';
})
->each(function ($keyword) {
$this->globalSearch($keyword);
});
}
/**
* Perform global search for the given keyword.
*
* @param string $keyword
* @return void
*/
abstract protected function globalSearch(string $keyword): void;
/**
* Perform search using search pane values.
*
* @return void
*/
protected function searchPanesSearch(): void
{
// Add support for search pane.
}
/**
* Count total items.
*
* @return int
*/
public function totalCount(): int
{
return $this->totalRecords ??= $this->count();
}
/**
* Count filtered items.
*
* @return int
*/
protected function filteredCount(): int
{
return $this->filteredRecords ??= $this->count();
}
/**
* Apply pagination.
*
* @return void
*/
protected function paginate(): void
{
if ($this->request->isPaginationable() && ! $this->skipPaging) {
$this->paging();
}
}
/**
* Transform output.
*
* @param iterable $results
* @param array $processed
* @return array
*/
protected function transform($results, $processed): array
{
if (isset($this->transformer) && class_exists('Yajra\\DataTables\\Transformers\\FractalTransformer')) {
return app('datatables.transformer')->transform(
$results,
$this->transformer,
$this->serializer ?? null
);
}
return Helper::transform($processed);
}
/**
* Get processed data.
*
* @param iterable $results
* @param bool $object
* @return array
*
* @throws \Exception
*/
protected function processResults($results, $object = false): array
{
$processor = new DataProcessor(
$results,
$this->getColumnsDefinition(),
$this->templates,
$this->request->start()
);
return $processor->process($object);
}
/**
* Render json response.
*
* @param array $data
* @return \Illuminate\Http\JsonResponse
*/
protected function render(array $data): JsonResponse
{
$output = $this->attachAppends([
'draw' => $this->request->draw(),
'recordsTotal' => $this->totalRecords,
'recordsFiltered' => $this->filteredRecords ?? 0,
'data' => $data,
]);
if ($this->config->isDebugging()) {
$output = $this->showDebugger($output);
}
foreach ($this->searchPanes as $column => $searchPane) {
$output['searchPanes']['options'][$column] = $searchPane['options'];
}
return new JsonResponse(
$output,
200,
$this->config->jsonHeaders(),
$this->config->jsonOptions()
);
}
/**
* Attach custom with meta on response.
*
* @param array $data
* @return array
*/
protected function attachAppends(array $data): array
{
return array_merge($data, $this->appends);
}
/**
* Append debug parameters on output.
*
* @param array $output
* @return array
*/
protected function showDebugger(array $output): array
{
$output['input'] = $this->request->all();
return $output;
}
/**
* Return an error json response.
*
* @param \Exception $exception
* @return \Illuminate\Http\JsonResponse
*
* @throws \Yajra\DataTables\Exceptions\Exception|\Exception
*/
protected function errorResponse(\Exception $exception)
{
/** @var string $error */
$error = $this->config->get('datatables.error');
$debug = $this->config->get('app.debug');
if ($error === 'throw' || (! $error && ! $debug)) {
throw $exception;
}
$this->getLogger()->error($exception);
return new JsonResponse([
'draw' => $this->request->draw(),
'recordsTotal' => $this->totalRecords,
'recordsFiltered' => 0,
'data' => [],
'error' => $error ? __($error) : "Exception Message:\n\n".$exception->getMessage(),
]);
}
/**
* Get monolog/logger instance.
*
* @return \Psr\Log\LoggerInterface
*/
public function getLogger()
{
$this->logger = $this->logger ?: app(LoggerInterface::class);
return $this->logger;
}
/**
* Set monolog/logger instance.
*
* @param \Psr\Log\LoggerInterface $logger
* @return $this
*/
public function setLogger(LoggerInterface $logger): static
{
$this->logger = $logger;
return $this;
}
/**
* Setup search keyword.
*
* @param string $value
* @return string
*/
protected function setupKeyword(string $value): string
{
if ($this->config->isSmartSearch()) {
$keyword = '%'.$value.'%';
if ($this->config->isWildcard()) {
$keyword = Helper::wildcardLikeString($value);
}
// remove escaping slash added on js script request
return str_replace('\\', '%', $keyword);
}
return $value;
}
/**
* Get column name to be use for filtering and sorting.
*
* @param int $index
* @param bool $wantsAlias
* @return string|null
*/
protected function getColumnName(int $index, bool $wantsAlias = false): ?string
{
$column = $this->request->columnName($index);
if (is_null($column)) {
return null;
}
// DataTables is using make(false)
if (is_numeric($column)) {
$column = $this->getColumnNameByIndex($index);
}
if (Str::contains(Str::upper($column), ' AS ')) {
$column = Helper::extractColumnName($column, $wantsAlias);
}
return $column;
}
/**
* Get column name by order column index.
*
* @param int $index
* @return string
*/
protected function getColumnNameByIndex(int $index): string
{
$name = (isset($this->columns[$index]) && $this->columns[$index] != '*')
? $this->columns[$index]
: $this->getPrimaryKeyName();
return in_array($name, $this->extraColumns, true) ? $this->getPrimaryKeyName() : $name;
}
/**
* If column name could not be resolved then use primary key.
*
* @return string
*/
protected function getPrimaryKeyName(): string
{
return 'id';
}
}
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