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<?php |
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namespace Yajra\DataTables; |
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use Illuminate\Database\Eloquent\Builder as EloquentBuilder; |
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use Illuminate\Database\Query\Builder; |
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use Illuminate\Database\Query\Expression; |
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use Illuminate\Support\Str; |
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use Yajra\DataTables\Utilities\Helper; |
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class QueryDataTable extends DataTableAbstract |
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{ |
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/** |
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* Builder object. |
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* |
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* @var \Illuminate\Database\Query\Builder |
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*/ |
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protected $query; |
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/** |
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* Database connection used. |
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* |
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* @var \Illuminate\Database\Connection |
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*/ |
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protected $connection; |
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/** |
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* Flag for ordering NULLS LAST option. |
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* |
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* @var bool |
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*/ |
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protected $nullsLast = false; |
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/** |
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* Flag to check if query preparation was already done. |
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* |
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* @var bool |
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*/ |
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protected $prepared = false; |
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/** |
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* @param \Illuminate\Database\Query\Builder $builder |
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*/ |
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public function __construct(Builder $builder) |
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{ |
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$this->query = $builder; |
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$this->request = resolve('datatables.request'); |
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$this->config = resolve('datatables.config'); |
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$this->columns = $builder->columns; |
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$this->connection = $builder->getConnection(); |
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if ($this->config->isDebugging()) { |
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$this->connection->enableQueryLog(); |
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} |
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} |
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/** |
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* Organizes works. |
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* |
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* @param bool $mDataSupport |
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* @return \Illuminate\Http\JsonResponse |
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* @throws \Exception |
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*/ |
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public function make($mDataSupport = true) |
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{ |
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try { |
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$this->prepareQuery(); |
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$results = $this->results(); |
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$processed = $this->processResults($results, $mDataSupport); |
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$data = $this->transform($results, $processed); |
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return $this->render($data); |
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} catch (\Exception $exception) { |
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return $this->errorResponse($exception); |
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} |
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} |
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/** |
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* Prepare query by executing count, filter, order and paginate. |
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*/ |
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protected function prepareQuery() |
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{ |
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if (!$this->prepared) { |
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$this->totalRecords = $this->totalCount(); |
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if ($this->totalRecords) { |
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$this->filterRecords(); |
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$this->ordering(); |
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$this->paginate(); |
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} |
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} |
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$this->prepared = true; |
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} |
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/** |
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* Count total items. |
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* |
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* @return integer |
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*/ |
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public function totalCount() |
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{ |
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return $this->totalRecords ? $this->totalRecords : $this->count(); |
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} |
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/** |
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* Counts current query. |
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* |
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* @return int |
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*/ |
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public function count() |
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{ |
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$builder = $this->prepareCountQuery(); |
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$table = $this->connection->raw('(' . $builder->toSql() . ') count_row_table'); |
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return $this->connection->table($table) |
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->setBindings($builder->getBindings()) |
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->count(); |
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} |
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/** |
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* Prepare count query builder. |
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* |
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* @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder |
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*/ |
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protected function prepareCountQuery() |
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{ |
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$builder = clone $this->query; |
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if ($this->isComplexQuery($builder)) { |
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$row_count = $this->wrap('row_count'); |
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$builder->select($this->connection->raw("'1' as {$row_count}")); |
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} |
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return $builder; |
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} |
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/** |
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* Check if builder query uses complex sql. |
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* |
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* @param \Illuminate\Database\Query\Builder $builder |
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* @return bool |
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*/ |
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protected function isComplexQuery($builder) |
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{ |
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return !Str::contains(Str::lower($builder->toSql()), ['union', 'having', 'distinct', 'order by', 'group by']); |
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} |
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/** |
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* Wrap column with DB grammar. |
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* |
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* @param string $column |
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* @return string |
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*/ |
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protected function wrap($column) |
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{ |
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return $this->connection->getQueryGrammar()->wrap($column); |
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} |
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/** |
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* Get paginated results. |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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public function results() |
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{ |
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return $this->query->get(); |
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} |
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/** |
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* Get filtered, ordered and paginated query. |
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* |
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* @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder |
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*/ |
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public function getFilteredQuery() |
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{ |
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$this->prepareQuery(); |
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return $this->getQuery(); |
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} |
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/** |
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* Get query builder instance. |
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* |
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* @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder |
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*/ |
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public function getQuery() |
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{ |
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return $this->query; |
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} |
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/** |
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* Perform column search. |
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* |
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* @return void |
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*/ |
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public function columnSearch() |
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{ |
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$columns = $this->request->columns(); |
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foreach ($columns as $index => $column) { |
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if (!$this->request->isColumnSearchable($index)) { |
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continue; |
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} |
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$column = $this->getColumnName($index); |
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if ($this->hasFilterColumn($column)) { |
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$keyword = $this->getColumnSearchKeyword($index, $raw = true); |
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$this->applyFilterColumn($this->getBaseQueryBuilder(), $column, $keyword); |
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continue; |
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} |
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$column = $this->resolveRelationColumn($column); |
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$keyword = $this->getColumnSearchKeyword($index); |
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$this->compileColumnSearch($index, $column, $keyword); |
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$this->isFilterApplied = true; |
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} |
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} |
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/** |
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* Check if column has custom filter handler. |
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* |
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* @param string $columnName |
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* @return bool |
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*/ |
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public function hasFilterColumn($columnName) |
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{ |
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return isset($this->columnDef['filter'][$columnName]); |
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} |
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/** |
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* Get column keyword to use for search. |
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* |
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* @param int $i |
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* @param bool $raw |
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* @return string |
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*/ |
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protected function getColumnSearchKeyword($i, $raw = false) |
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{ |
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$keyword = $this->request->columnKeyword($i); |
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if ($raw || $this->request->isRegex($i)) { |
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return $keyword; |
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} |
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return $this->setupKeyword($keyword); |
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} |
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/** |
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* Apply filterColumn api search. |
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* |
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* @param Builder $query |
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* @param string $columnName |
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* @param string $keyword |
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* @param string $boolean |
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*/ |
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protected function applyFilterColumn(Builder $query, $columnName, $keyword, $boolean = 'and') |
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{ |
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$callback = $this->columnDef['filter'][$columnName]['method']; |
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if ($this->query instanceof EloquentBuilder) { |
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$builder = $this->query->newModelInstance()->newQuery(); |
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} else { |
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$builder = $this->query->newQuery(); |
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} |
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$callback($builder, $keyword); |
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$query->addNestedWhereQuery($this->getBaseQueryBuilder($builder), $boolean); |
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} |
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/** |
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* Get the base query builder instance. |
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* |
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* @param mixed $instance |
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* @return \Illuminate\Database\Query\Builder |
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*/ |
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protected function getBaseQueryBuilder($instance = null) |
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{ |
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if (!$instance) { |
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$instance = $this->query; |
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} |
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if ($instance instanceof EloquentBuilder) { |
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return $instance->getQuery(); |
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} |
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return $instance; |
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} |
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/** |
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* Resolve the proper column name be used. |
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* |
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* @param string $column |
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* @return string |
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*/ |
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protected function resolveRelationColumn($column) |
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{ |
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return $column; |
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} |
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/** |
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* Compile queries for column search. |
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* |
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* @param int $i |
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* @param string $column |
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* @param string $keyword |
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*/ |
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protected function compileColumnSearch($i, $column, $keyword) |
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{ |
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if ($this->request->isRegex($i)) { |
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$column = strstr($column, '(') ? $this->connection->raw($column) : $column; |
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$this->regexColumnSearch($column, $keyword); |
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} else { |
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$this->compileQuerySearch($this->query, $column, $keyword, ''); |
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} |
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} |
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/** |
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* Compile regex query column search. |
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* |
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* @param mixed $column |
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* @param string $keyword |
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*/ |
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protected function regexColumnSearch($column, $keyword) |
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{ |
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switch ($this->connection->getDriverName()) { |
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case 'oracle': |
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$sql = !$this->config |
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->isCaseInsensitive() ? 'REGEXP_LIKE( ' . $column . ' , ? )' : 'REGEXP_LIKE( LOWER(' . $column . ') , ?, \'i\' )'; |
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break; |
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case 'pgsql': |
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$sql = !$this->config->isCaseInsensitive() ? $column . ' ~ ?' : $column . ' ~* ? '; |
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break; |
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default: |
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$sql = !$this->config |
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->isCaseInsensitive() ? $column . ' REGEXP ?' : 'LOWER(' . $column . ') REGEXP ?'; |
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$keyword = Str::lower($keyword); |
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} |
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344
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$this->query->whereRaw($sql, [$keyword]); |
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} |
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347
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/** |
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* Compile query builder where clause depending on configurations. |
349
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* |
350
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* @param mixed $query |
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* @param string $column |
352
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* @param string $keyword |
353
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* @param string $relation |
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*/ |
355
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protected function compileQuerySearch($query, $column, $keyword, $relation = 'or') |
356
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{ |
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$column = $this->addTablePrefix($query, $column); |
358
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$column = $this->castColumn($column); |
359
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$sql = $column . ' LIKE ?'; |
360
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361
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if ($this->config->isCaseInsensitive()) { |
362
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$sql = 'LOWER(' . $column . ') LIKE ?'; |
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} |
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$query->{$relation . 'WhereRaw'}($sql, [$this->prepareKeyword($keyword)]); |
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} |
367
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368
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/** |
369
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* Patch for fix about ambiguous field. |
370
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* Ambiguous field error will appear when query use join table and search with keyword. |
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* |
372
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* @param mixed $query |
373
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* @param string $column |
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* @return string |
375
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*/ |
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protected function addTablePrefix($query, $column) |
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{ |
378
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if (strpos($column, '.') === false) { |
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$q = $this->getBaseQueryBuilder($query); |
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if (!$q->from instanceof Expression) { |
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$column = $q->from . '.' . $column; |
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} |
383
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} |
384
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385
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return $this->wrap($column); |
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} |
387
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|
388
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/** |
389
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* Wrap a column and cast based on database driver. |
390
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* |
391
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* @param string $column |
392
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* @return string |
393
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*/ |
394
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protected function castColumn($column) |
395
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{ |
396
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switch ($this->connection->getDriverName()) { |
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case 'pgsql': |
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return 'CAST(' . $column . ' as TEXT)'; |
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case 'firebird': |
400
|
|
|
return 'CAST(' . $column . ' as VARCHAR(255))'; |
401
|
|
|
default: |
402
|
|
|
return $column; |
403
|
|
|
} |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
/** |
407
|
|
|
* Prepare search keyword based on configurations. |
408
|
|
|
* |
409
|
|
|
* @param string $keyword |
410
|
|
|
* @return string |
411
|
|
|
*/ |
412
|
|
|
protected function prepareKeyword($keyword) |
413
|
|
|
{ |
414
|
|
|
if ($this->config->isCaseInsensitive()) { |
415
|
|
|
$keyword = Str::lower($keyword); |
416
|
|
|
} |
417
|
|
|
|
418
|
|
|
if ($this->config->isWildcard()) { |
419
|
|
|
$keyword = Helper::wildcardLikeString($keyword); |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
if ($this->config->isSmartSearch()) { |
423
|
|
|
$keyword = "%$keyword%"; |
424
|
|
|
} |
425
|
|
|
|
426
|
|
|
return $keyword; |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
/** |
430
|
|
|
* Add custom filter handler for the give column. |
431
|
|
|
* |
432
|
|
|
* @param string $column |
433
|
|
|
* @param callable $callback |
434
|
|
|
* @return $this |
435
|
|
|
*/ |
436
|
|
|
public function filterColumn($column, callable $callback) |
437
|
|
|
{ |
438
|
|
|
$this->columnDef['filter'][$column] = ['method' => $callback]; |
439
|
|
|
|
440
|
|
|
return $this; |
441
|
|
|
} |
442
|
|
|
|
443
|
|
|
/** |
444
|
|
|
* Order each given columns versus the given custom sql. |
445
|
|
|
* |
446
|
|
|
* @param array $columns |
447
|
|
|
* @param string $sql |
448
|
|
|
* @param array $bindings |
449
|
|
|
* @return $this |
450
|
|
|
*/ |
451
|
|
|
public function orderColumns(array $columns, $sql, $bindings = []) |
452
|
|
|
{ |
453
|
|
|
foreach ($columns as $column) { |
454
|
|
|
$this->orderColumn($column, str_replace(':column', $column, $sql), $bindings); |
455
|
|
|
} |
456
|
|
|
|
457
|
|
|
return $this; |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
/** |
461
|
|
|
* Override default column ordering. |
462
|
|
|
* |
463
|
|
|
* @param string $column |
464
|
|
|
* @param string $sql |
465
|
|
|
* @param array $bindings |
466
|
|
|
* @return $this |
467
|
|
|
* @internal string $1 Special variable that returns the requested order direction of the column. |
468
|
|
|
*/ |
469
|
|
|
public function orderColumn($column, $sql, $bindings = []) |
470
|
|
|
{ |
471
|
|
|
$this->columnDef['order'][$column] = compact('sql', 'bindings'); |
472
|
|
|
|
473
|
|
|
return $this; |
474
|
|
|
} |
475
|
|
|
|
476
|
|
|
/** |
477
|
|
|
* Set datatables to do ordering with NULLS LAST option. |
478
|
|
|
* |
479
|
|
|
* @return $this |
480
|
|
|
*/ |
481
|
|
|
public function orderByNullsLast() |
482
|
|
|
{ |
483
|
|
|
$this->nullsLast = true; |
484
|
|
|
|
485
|
|
|
return $this; |
486
|
|
|
} |
487
|
|
|
|
488
|
|
|
/** |
489
|
|
|
* Perform pagination. |
490
|
|
|
* |
491
|
|
|
* @return void |
492
|
|
|
*/ |
493
|
|
|
public function paging() |
494
|
|
|
{ |
495
|
|
|
$this->query->skip($this->request->input('start')) |
|
|
|
|
496
|
|
|
->take((int) $this->request->input('length') > 0 ? $this->request->input('length') : 10); |
|
|
|
|
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
/** |
500
|
|
|
* Add column in collection. |
501
|
|
|
* |
502
|
|
|
* @param string $name |
503
|
|
|
* @param string|callable $content |
504
|
|
|
* @param bool|int $order |
505
|
|
|
* @return \Yajra\DataTables\DataTableAbstract|\Yajra\DataTables\Builders\QueryDataTable |
506
|
|
|
*/ |
507
|
|
|
public function addColumn($name, $content, $order = false) |
508
|
|
|
{ |
509
|
|
|
$this->pushToBlacklist($name); |
510
|
|
|
|
511
|
|
|
return parent::addColumn($name, $content, $order); |
512
|
|
|
} |
513
|
|
|
|
514
|
|
|
/** |
515
|
|
|
* Resolve callback parameter instance. |
516
|
|
|
* |
517
|
|
|
* @return \Illuminate\Database\Query\Builder |
518
|
|
|
*/ |
519
|
|
|
protected function resolveCallbackParameter() |
520
|
|
|
{ |
521
|
|
|
return $this->query; |
522
|
|
|
} |
523
|
|
|
|
524
|
|
|
/** |
525
|
|
|
* Perform default query orderBy clause. |
526
|
|
|
*/ |
527
|
|
|
protected function defaultOrdering() |
528
|
|
|
{ |
529
|
|
|
collect($this->request->orderableColumns()) |
530
|
|
|
->map(function ($orderable) { |
531
|
|
|
$orderable['name'] = $this->getColumnName($orderable['column'], true); |
532
|
|
|
|
533
|
|
|
return $orderable; |
534
|
|
|
}) |
535
|
|
|
->reject(function ($orderable) { |
536
|
|
|
return $this->isBlacklisted($orderable['name']) && !$this->hasOrderColumn($orderable['name']); |
537
|
|
|
}) |
538
|
|
|
->each(function ($orderable) { |
539
|
|
|
$column = $this->resolveRelationColumn($orderable['name']); |
540
|
|
|
|
541
|
|
|
if ($this->hasOrderColumn($column)) { |
542
|
|
|
$this->applyOrderColumn($column, $orderable); |
543
|
|
|
} else { |
544
|
|
|
$nullsLastSql = $this->getNullsLastSql($column, $orderable['direction']); |
545
|
|
|
$normalSql = $this->wrap($column) . ' ' . $orderable['direction']; |
546
|
|
|
$sql = $this->nullsLast ? $nullsLastSql : $normalSql; |
547
|
|
|
$this->query->orderByRaw($sql); |
548
|
|
|
} |
549
|
|
|
}); |
550
|
|
|
} |
551
|
|
|
|
552
|
|
|
/** |
553
|
|
|
* Check if column has custom sort handler. |
554
|
|
|
* |
555
|
|
|
* @param string $column |
556
|
|
|
* @return bool |
557
|
|
|
*/ |
558
|
|
|
protected function hasOrderColumn($column) |
559
|
|
|
{ |
560
|
|
|
return isset($this->columnDef['order'][$column]); |
561
|
|
|
} |
562
|
|
|
|
563
|
|
|
/** |
564
|
|
|
* Apply orderColumn custom query. |
565
|
|
|
* |
566
|
|
|
* @param string $column |
567
|
|
|
* @param array $orderable |
568
|
|
|
*/ |
569
|
|
|
protected function applyOrderColumn($column, $orderable): void |
570
|
|
|
{ |
571
|
|
|
$sql = $this->columnDef['order'][$column]['sql']; |
572
|
|
|
$sql = str_replace('$1', $orderable['direction'], $sql); |
573
|
|
|
$bindings = $this->columnDef['order'][$column]['bindings']; |
574
|
|
|
$this->query->orderByRaw($sql, $bindings); |
575
|
|
|
} |
576
|
|
|
|
577
|
|
|
/** |
578
|
|
|
* Get NULLS LAST SQL. |
579
|
|
|
* |
580
|
|
|
* @param string $column |
581
|
|
|
* @param string $direction |
582
|
|
|
* @return string |
583
|
|
|
*/ |
584
|
|
|
protected function getNullsLastSql($column, $direction) |
585
|
|
|
{ |
586
|
|
|
$sql = $this->config->get('datatables.nulls_last_sql', '%s %s NULLS LAST'); |
587
|
|
|
|
588
|
|
|
return sprintf($sql, $column, $direction); |
589
|
|
|
} |
590
|
|
|
|
591
|
|
|
/** |
592
|
|
|
* Perform global search for the given keyword. |
593
|
|
|
* |
594
|
|
|
* @param string $keyword |
595
|
|
|
*/ |
596
|
|
|
protected function globalSearch($keyword) |
597
|
|
|
{ |
598
|
|
|
$this->query->where(function ($query) use ($keyword) { |
599
|
|
|
$query = $this->getBaseQueryBuilder($query); |
600
|
|
|
|
601
|
|
|
collect($this->request->searchableColumnIndex()) |
602
|
|
|
->map(function ($index) { |
603
|
|
|
return $this->getColumnName($index); |
604
|
|
|
}) |
605
|
|
|
->reject(function ($column) { |
606
|
|
|
return $this->isBlacklisted($column) && !$this->hasFilterColumn($column); |
607
|
|
|
}) |
608
|
|
|
->each(function ($column) use ($keyword, $query) { |
609
|
|
|
if ($this->hasFilterColumn($column)) { |
610
|
|
|
$this->applyFilterColumn($query, $column, $keyword, 'or'); |
611
|
|
|
} else { |
612
|
|
|
$this->compileQuerySearch($query, $column, $keyword); |
613
|
|
|
} |
614
|
|
|
|
615
|
|
|
$this->isFilterApplied = true; |
616
|
|
|
}); |
617
|
|
|
}); |
618
|
|
|
} |
619
|
|
|
|
620
|
|
|
/** |
621
|
|
|
* Append debug parameters on output. |
622
|
|
|
* |
623
|
|
|
* @param array $output |
624
|
|
|
* @return array |
625
|
|
|
*/ |
626
|
|
|
protected function showDebugger(array $output) |
627
|
|
|
{ |
628
|
|
|
$output['queries'] = $this->connection->getQueryLog(); |
629
|
|
|
$output['input'] = $this->request->all(); |
|
|
|
|
630
|
|
|
|
631
|
|
|
return $output; |
632
|
|
|
} |
633
|
|
|
} |
634
|
|
|
|
If you implement
__call
and you know which methods are available, you can improve IDE auto-completion and static analysis by adding a @method annotation to the class.This is often the case, when
__call
is implemented by a parent class and only the child class knows which methods exist: