QueryBuilderEngine::ordering() - Code Metrics - Inspection of "Fix orderColumn api where related tables are not j..." - yajra/laravel-datatables - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 386069...7133d1 )

by Arjay

created 2017-06-30 02:31 UTC

QueryBuilderEngine::ordering() B

↳ Parent: QueryBuilderEngine

Complexity

Conditions	5
Paths	2

Size

Total Lines	30
Code Lines	19

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	19
nc	2
nop	0
dl	0
loc	30
rs	8.439
c	0
b	0
f	0

<?php

namespace Yajra\Datatables\Engines;

use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
use Illuminate\Database\Query\Builder;
use Illuminate\Database\Query\Expression;
use Illuminate\Support\Str;

/**
 * Class QueryBuilderEngine.
 *
 * @package Yajra\Datatables\Engines
 * @author  Arjay Angeles <[email protected]>
 */
class QueryBuilderEngine extends BaseEngine
{
    /**
     * Builder object.
     *
     * @var \Illuminate\Database\Query\Builder
     */
    protected $query;

    /**
     * Database connection used.
     *
     * @var \Illuminate\Database\Connection
     */
    protected $connection;

    /**
     * @param \Illuminate\Database\Query\Builder $builder
     */
    public function __construct(Builder $builder)
    {
        $this->query      = $builder;
        $this->request    = resolve('datatables.request');
        $this->config     = resolve('datatables.config');
        $this->columns    = $builder->columns;
        $this->connection = $builder->getConnection();
        if ($this->config->isDebugging()) {
            $this->connection->enableQueryLog();
        }
    }

    /**
     * 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)
    {
        $this->overrideGlobalSearch($callback, $this->query, $globalSearch);

        return $this;
    }

    /**
     * Organizes works.
     *
     * @param bool $mDataSupport
     * @return \Illuminate\Http\JsonResponse
     * @throws \Exception
     */
    public function make($mDataSupport = false)
    {
        try {
            $this->totalRecords = $this->totalCount();

            if ($this->totalRecords) {
                $this->filterRecords();
                $this->ordering();
                $this->paginate();
            }

            $data = $this->transform($this->getProcessedData($mDataSupport));

            return $this->render($data);
        } catch (\Exception $exception) {
            return $this->errorResponse($exception);
        }
    }

    /**
     * Count total items.
     *
     * @return integer
     */
    public function totalCount()
    {
        return $this->totalRecords ? $this->totalRecords : $this->count();
    }

    /**
     * Counts current query.
     *
     * @return int
     */
    public function count()
    {
        $builder = $this->prepareCountQuery();
        $table   = $this->connection->raw('(' . $builder->toSql() . ') count_row_table');

        return $this->connection->table($table)
                                ->setBindings($builder->getBindings())
                                ->count();
    }

    /**
     * Prepare count query builder.
     *
     * @return \Illuminate\Database\Query\Builder
     */
    protected function prepareCountQuery()
    {
        $builder = clone $this->query;

        if ($this->isComplexQuery($builder)) {
            $row_count = $this->wrap('row_count');
            $builder->select($this->connection->raw("'1' as {$row_count}"));
        }

        return $builder;
    }

    /**
     * Check if builder query uses complex sql.
     *
     * @param \Illuminate\Database\Query\Builder $builder
     * @return bool
     */
    protected function isComplexQuery($builder)
    {
        return !Str::contains(Str::lower($builder->toSql()), ['union', 'having', 'distinct', 'order by', 'group by']);
    }

    /**
     * Wrap column with DB grammar.
     *
     * @param string $column
     * @return string
     */
    protected function wrap($column)
    {
        return $this->connection->getQueryGrammar()->wrap($column);
    }

    /**
     * Perform sorting of columns.
     *
     * @return void
     */
    public function ordering()
    {
        if ($this->orderCallback) {
            call_user_func($this->orderCallback, $this->query);

            return;
        }

        collect($this->request->orderableColumns())
            ->map(function ($orderable) {
                $orderable['name'] = $this->getColumnName($orderable['column'], true);

                return $orderable;
            })
            ->reject(function ($orderable) {
                return $this->isBlacklisted($orderable['name']) && !$this->hasOrderColumn($orderable['name']);
            })
            ->each(function ($orderable) {
                $column = $this->resolveRelationColumn($orderable['name']);

                if ($this->hasOrderColumn($column)) {
                    $this->applyOrderColumn($column, $orderable);
                } else {
                    $nullsLastSql = $this->getNullsLastSql($column, $orderable['direction']);
                    $normalSql    = $this->wrap($column) . ' ' . $orderable['direction'];
                    $sql          = $this->nullsLast ? $nullsLastSql : $normalSql;
                    $this->query->orderByRaw($sql);
                }
            });
    }

    /**
     * Check if column has custom sort handler.
     *
     * @param string $column
     * @return bool
     */
    protected function hasOrderColumn($column)
    {
        return isset($this->columnDef['order'][$column]);
    }

    /**
     * Resolve the proper column name be used.
     *
     * @param string $column
     * @return string
     */
    protected function resolveRelationColumn($column)
    {
        return $column;
    }

    /**
     * Apply orderColumn custom query.
     *
     * @param string $column
     * @param array  $orderable
     */
    protected function applyOrderColumn($column, $orderable): void
    {
        $sql      = $this->columnDef['order'][$column]['sql'];
        $sql      = str_replace('$1', $orderable['direction'], $sql);
        $bindings = $this->columnDef['order'][$column]['bindings'];
        $this->query->orderByRaw($sql, $bindings);
    }

    /**
     * Get NULLS LAST SQL.
     *
     * @param  string $column
     * @param  string $direction
     * @return string
     */
    protected function getNullsLastSql($column, $direction)
    {
        $sql = $this->config->get('datatables.nulls_last_sql', '%s %s NULLS LAST');

        return sprintf($sql, $column, $direction);
    }

    /**
     * Perform column search.
     *
     * @return void
     */
    public function columnSearch()
    {
        $columns = $this->request->columns();

        foreach ($columns as $index => $column) {
            if (!$this->request->isColumnSearchable($index)) {
                continue;
            }

            $column = $this->getColumnName($index);

            if ($this->hasFilterColumn($column)) {
                $keyword = $this->getColumnSearchKeyword($index, $raw = true);
                $this->applyFilterColumn($this->getBaseQueryBuilder(), $column, $keyword);
                continue;
            }

            $column  = $this->resolveRelationColumn($column);
            $keyword = $this->getColumnSearchKeyword($index);
            $this->compileColumnSearch($index, $column, $keyword);

            $this->isFilterApplied = true;
        }
    }

    /**
     * Check if column has custom filter handler.
     *
     * @param  string $columnName
     * @return bool
     */
    public function hasFilterColumn($columnName)
    {
        return isset($this->columnDef['filter'][$columnName]);
    }

    /**
     * Get column keyword to use for search.
     *
     * @param int  $i
     * @param bool $raw
     * @return string
     */
    protected function getColumnSearchKeyword($i, $raw = false)
    {
        $keyword = $this->request->columnKeyword($i);
        if ($raw || $this->request->isRegex($i)) {
            return $keyword;
        }

        return $this->setupKeyword($keyword);
    }

    /**
     * Apply filterColumn api search.
     *
     * @param Builder $query
     * @param string  $columnName
     * @param string  $keyword
     * @param string  $boolean
     */
    protected function applyFilterColumn(Builder $query, $columnName, $keyword, $boolean = 'and')
    {
        $callback = $this->columnDef['filter'][$columnName]['method'];
        $builder  = $query->newQuery();
        $callback($builder, $keyword);
        $query->addNestedWhereQuery($builder, $boolean);
    }

    /**
     * Get the base query builder instance.
     *
     * @param mixed $instance
     * @return \Illuminate\Database\Query\Builder
     */
    protected function getBaseQueryBuilder($instance = null)
    {
        if (!$instance) {
            $instance = $this->query;
        }

        if ($instance instanceof EloquentBuilder) {
            return $instance->getQuery();
        }

        return $instance;
    }

    /**
     * Compile queries for column search.
     *
     * @param int    $i
     * @param string $column
     * @param string $keyword
     */
    protected function compileColumnSearch($i, $column, $keyword)
    {
        if ($this->request->isRegex($i)) {
            $column = strstr($column, '(') ? $this->connection->raw($column) : $column;
            $this->regexColumnSearch($column, $keyword);
        } else {
            $this->compileQuerySearch($this->query, $column, $keyword, '');
        }
    }

    /**
     * Compile regex query column search.
     *
     * @param mixed  $column
     * @param string $keyword
     */
    protected function regexColumnSearch($column, $keyword)
    {
        switch ($this->connection->getDriverName()) {
            case 'oracle':
                $sql = !$this->config
                    ->isCaseInsensitive() ? 'REGEXP_LIKE( ' . $column . ' , ? )' : 'REGEXP_LIKE( LOWER(' . $column . ') , ?, \'i\' )';
                break;

            case 'pgsql':
                $sql = !$this->config->isCaseInsensitive() ? $column . ' ~ ?' : $column . ' ~* ? ';
                break;

            default:
                $sql     = !$this->config
                    ->isCaseInsensitive() ? $column . ' REGEXP ?' : 'LOWER(' . $column . ') REGEXP ?';
                $keyword = Str::lower($keyword);
        }

        $this->query->whereRaw($sql, [$keyword]);
    }

    /**
     * Compile query builder where clause depending on configurations.
     *
     * @param mixed  $query
     * @param string $column
     * @param string $keyword
     * @param string $relation
     */
    protected function compileQuerySearch($query, $column, $keyword, $relation = 'or')
    {
        $column = $this->addTablePrefix($query, $column);
        $column = $this->castColumn($column);
        $sql    = $column . ' LIKE ?';

        if ($this->config->isCaseInsensitive()) {
            $sql = 'LOWER(' . $column . ') LIKE ?';
        }

        $query->{$relation . 'WhereRaw'}($sql, [$this->prepareKeyword($keyword)]);
    }

    /**
     * Patch for fix about ambiguous field.
     * Ambiguous field error will appear when query use join table and search with keyword.
     *
     * @param mixed  $query
     * @param string $column
     * @return string
     */
    protected function addTablePrefix($query, $column)
    {
        if (strpos($column, '.') === false) {
            $q = $this->getBaseQueryBuilder($query);
            if (!$q->from instanceof Expression) {
                $column = $q->from . '.' . $column;
            }
        }

        return $this->wrap($column);
    }

    /**
     * Wrap a column and cast based on database driver.
     *
     * @param  string $column
     * @return string
     */
    protected function castColumn($column)
    {
        switch ($this->connection->getDriverName()) {
            case 'pgsql':
                return 'CAST(' . $column . ' as TEXT)';
            case 'firebird':
                return 'CAST(' . $column . ' as VARCHAR(255))';
            default:
                return $column;
        }
    }

    /**
     * Prepare search keyword based on configurations.
     *
     * @param string $keyword
     * @return string
     */
    protected function prepareKeyword($keyword)
    {
        if ($this->config->isCaseInsensitive()) {
            $keyword = Str::lower($keyword);
        }

        if ($this->config->isWildcard()) {
            $keyword = $this->wildcardLikeString($keyword);
        }

        if ($this->config->isSmartSearch()) {
            $keyword = "%$keyword%";
        }

        return $keyword;
    }

    /**
     * Perform pagination.
     *
     * @return void
     */
    public function paging()
    {
        $this->query->skip($this->request->input('start'))
                    ->take((int) $this->request->input('length') > 0 ? $this->request->input('length') : 10);
    }

    /**
     * Get paginated results.
     *
     * @return \Illuminate\Support\Collection
     */
    public function results()
    {
        return $this->query->get();
    }

    /**
     * Add column in collection.
     *
     * @param string          $name
     * @param string|callable $content
     * @param bool|int        $order
     * @return \Yajra\Datatables\Engines\BaseEngine|\Yajra\Datatables\Engines\QueryBuilderEngine
     */
    public function addColumn($name, $content, $order = false)
    {
        $this->pushToBlacklist($name);

        return parent::addColumn($name, $content, $order);
    }

    /**
     * Get query builder instance.
     *
     * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder
     */
    public function getQuery()
    {
        return $this->query;
    }

    /**
     * Perform global search for the given keyword.
     *
     * @param string $keyword
     */
    protected function globalSearch($keyword)
    {
        $this->query->where(function ($query) use ($keyword) {
            $query = $this->getBaseQueryBuilder($query);

            collect($this->request->searchableColumnIndex())
                ->map(function ($index) {
                    return $this->getColumnName($index);
                })
                ->reject(function ($column) {
                    return $this->isBlacklisted($column) && !$this->hasFilterColumn($column);
                })
                ->each(function ($column) use ($keyword, $query) {
                    if ($this->hasFilterColumn($column)) {
                        $this->applyFilterColumn($query, $column, $keyword, 'or');
                    } else {
                        $this->compileQuerySearch($query, $column, $keyword);
                    }

                    $this->isFilterApplied = true;
                });
        });
    }

    /**
     * Append debug parameters on output.
     *
     * @param  array $output
     * @return array
     */
    protected function showDebugger(array $output)
    {
        $output['queries'] = $this->connection->getQueryLog();
        $output['input']   = $this->request->all();

        return $output;
    }
}


1			<?php
2
3			namespace Yajra\Datatables\Engines;
4
5			use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
6			use Illuminate\Database\Query\Builder;
7			use Illuminate\Database\Query\Expression;
8			use Illuminate\Support\Str;
9
10			/**
11			* Class QueryBuilderEngine.
12			*
13			* @package Yajra\Datatables\Engines
14			* @author Arjay Angeles <[email protected]>
15			*/
16			class QueryBuilderEngine extends BaseEngine
17			{
18			/**
19			* Builder object.
20			*
21			* @var \Illuminate\Database\Query\Builder
22			*/
23			protected $query;
24
25			/**
26			* Database connection used.
27			*
28			* @var \Illuminate\Database\Connection
29			*/
30			protected $connection;
31
32			/**
33			* @param \Illuminate\Database\Query\Builder $builder
34			*/
35			public function __construct(Builder $builder)
36			{
37			$this->query = $builder;
38			$this->request = resolve('datatables.request');
39			$this->config = resolve('datatables.config');
40			$this->columns = $builder->columns;
41			$this->connection = $builder->getConnection();
42			if ($this->config->isDebugging()) {
43			$this->connection->enableQueryLog();
44			}
45			}
46
47			/**
48			* Set auto filter off and run your own filter.
49			* Overrides global search.
50			*
51			* @param callable $callback
52			* @param bool $globalSearch
53			* @return $this
54			*/
55			public function filter(callable $callback, $globalSearch = false)
56			{
57			$this->overrideGlobalSearch($callback, $this->query, $globalSearch);
58
59			return $this;
60			}
61
62			/**
63			* Organizes works.
64			*
65			* @param bool $mDataSupport
66			* @return \Illuminate\Http\JsonResponse
67			* @throws \Exception
68			*/
69			public function make($mDataSupport = false)
70			{
71			try {
72			$this->totalRecords = $this->totalCount();
73
74			if ($this->totalRecords) {
75			$this->filterRecords();
76			$this->ordering();
77			$this->paginate();
78			}
79
80			$data = $this->transform($this->getProcessedData($mDataSupport));
81
82			return $this->render($data);
83			} catch (\Exception $exception) {
84			return $this->errorResponse($exception);
85			}
86			}
87
88			/**
89			* Count total items.
90			*
91			* @return integer
92			*/
93			public function totalCount()
94			{
95			return $this->totalRecords ? $this->totalRecords : $this->count();
96			}
97
98			/**
99			* Counts current query.
100			*
101			* @return int
102			*/
103			public function count()
104			{
105			$builder = $this->prepareCountQuery();
106			$table = $this->connection->raw('(' . $builder->toSql() . ') count_row_table');
107
108			return $this->connection->table($table)
109			->setBindings($builder->getBindings())
110			->count();
111			}
112
113			/**
114			* Prepare count query builder.
115			*
116			* @return \Illuminate\Database\Query\Builder
117			*/
118			protected function prepareCountQuery()
119			{
120			$builder = clone $this->query;
121
122			if ($this->isComplexQuery($builder)) {
123			$row_count = $this->wrap('row_count');
124			$builder->select($this->connection->raw("'1' as {$row_count}"));
125			}
126
127			return $builder;
128			}
129
130			/**
131			* Check if builder query uses complex sql.
132			*
133			* @param \Illuminate\Database\Query\Builder $builder
134			* @return bool
135			*/
136			protected function isComplexQuery($builder)
137			{
138			return !Str::contains(Str::lower($builder->toSql()), ['union', 'having', 'distinct', 'order by', 'group by']);
139			}
140
141			/**
142			* Wrap column with DB grammar.
143			*
144			* @param string $column
145			* @return string
146			*/
147			protected function wrap($column)
148			{
149			return $this->connection->getQueryGrammar()->wrap($column);
150			}
151
152			/**
153			* Perform sorting of columns.
154			*
155			* @return void
156			*/
157			public function ordering()
158			{
159			if ($this->orderCallback) {
160			call_user_func($this->orderCallback, $this->query);
161
162			return;
163			}
164
165			collect($this->request->orderableColumns())
166			->map(function ($orderable) {
167			$orderable['name'] = $this->getColumnName($orderable['column'], true);
168
169			return $orderable;
170			})
171			->reject(function ($orderable) {
172			return $this->isBlacklisted($orderable['name']) && !$this->hasOrderColumn($orderable['name']);
173			})
174			->each(function ($orderable) {
175			$column = $this->resolveRelationColumn($orderable['name']);
176
177			if ($this->hasOrderColumn($column)) {
178			$this->applyOrderColumn($column, $orderable);
179			} else {
180			$nullsLastSql = $this->getNullsLastSql($column, $orderable['direction']);
181			$normalSql = $this->wrap($column) . ' ' . $orderable['direction'];
182			$sql = $this->nullsLast ? $nullsLastSql : $normalSql;
183			$this->query->orderByRaw($sql);
184			}
185			});
186			}
187
188			/**
189			* Check if column has custom sort handler.
190			*
191			* @param string $column
192			* @return bool
193			*/
194			protected function hasOrderColumn($column)
195			{
196			return isset($this->columnDef['order'][$column]);
197			}
198
199			/**
200			* Resolve the proper column name be used.
201			*
202			* @param string $column
203			* @return string
204			*/
205			protected function resolveRelationColumn($column)
206			{
207			return $column;
208			}
209
210			/**
211			* Apply orderColumn custom query.
212			*
213			* @param string $column
214			* @param array $orderable
215			*/
216			protected function applyOrderColumn($column, $orderable): void
217			{
218			$sql = $this->columnDef['order'][$column]['sql'];
219			$sql = str_replace('$1', $orderable['direction'], $sql);
220			$bindings = $this->columnDef['order'][$column]['bindings'];
221			$this->query->orderByRaw($sql, $bindings);
222			}
223
224			/**
225			* Get NULLS LAST SQL.
226			*
227			* @param string $column
228			* @param string $direction
229			* @return string
230			*/
231			protected function getNullsLastSql($column, $direction)
232			{
233			$sql = $this->config->get('datatables.nulls_last_sql', '%s %s NULLS LAST');
234
235			return sprintf($sql, $column, $direction);
236			}
237
238			/**
239			* Perform column search.
240			*
241			* @return void
242			*/
243			public function columnSearch()
244			{
245			$columns = $this->request->columns();
246
247			foreach ($columns as $index => $column) {
248			if (!$this->request->isColumnSearchable($index)) {
249			continue;
250			}
251
252			$column = $this->getColumnName($index);
253
254			if ($this->hasFilterColumn($column)) {
255			$keyword = $this->getColumnSearchKeyword($index, $raw = true);
256			$this->applyFilterColumn($this->getBaseQueryBuilder(), $column, $keyword);
257			continue;
258			}
259
260			$column = $this->resolveRelationColumn($column);
261			$keyword = $this->getColumnSearchKeyword($index);
262			$this->compileColumnSearch($index, $column, $keyword);
263
264			$this->isFilterApplied = true;
265			}
266			}
267
268			/**
269			* Check if column has custom filter handler.
270			*
271			* @param string $columnName
272			* @return bool
273			*/
274			public function hasFilterColumn($columnName)
275			{
276			return isset($this->columnDef['filter'][$columnName]);
277			}
278
279			/**
280			* Get column keyword to use for search.
281			*
282			* @param int $i
283			* @param bool $raw
284			* @return string
285			*/
286			protected function getColumnSearchKeyword($i, $raw = false)
287			{
288			$keyword = $this->request->columnKeyword($i);
289			if ($raw \|\| $this->request->isRegex($i)) {
290			return $keyword;
291			}
292
293			return $this->setupKeyword($keyword);
294			}
295
296			/**
297			* Apply filterColumn api search.
298			*
299			* @param Builder $query
300			* @param string $columnName
301			* @param string $keyword
302			* @param string $boolean
303			*/
304			protected function applyFilterColumn(Builder $query, $columnName, $keyword, $boolean = 'and')
305			{
306			$callback = $this->columnDef['filter'][$columnName]['method'];
307			$builder = $query->newQuery();
308			$callback($builder, $keyword);
309			$query->addNestedWhereQuery($builder, $boolean);
310			}
311
312			/**
313			* Get the base query builder instance.
314			*
315			* @param mixed $instance
316			* @return \Illuminate\Database\Query\Builder
317			*/
318			protected function getBaseQueryBuilder($instance = null)
319			{
320			if (!$instance) {
321			$instance = $this->query;
322			}
323
324			if ($instance instanceof EloquentBuilder) {
325			return $instance->getQuery();
326			}
327
328			return $instance;
329			}
330
331			/**
332			* Compile queries for column search.
333			*
334			* @param int $i
335			* @param string $column
336			* @param string $keyword
337			*/
338			protected function compileColumnSearch($i, $column, $keyword)
339			{
340			if ($this->request->isRegex($i)) {
341			$column = strstr($column, '(') ? $this->connection->raw($column) : $column;
342			$this->regexColumnSearch($column, $keyword);
343			} else {
344			$this->compileQuerySearch($this->query, $column, $keyword, '');
345			}
346			}
347
348			/**
349			* Compile regex query column search.
350			*
351			* @param mixed $column
352			* @param string $keyword
353			*/
354			protected function regexColumnSearch($column, $keyword)
355			{
356			switch ($this->connection->getDriverName()) {
357			case 'oracle':
358			$sql = !$this->config
359			->isCaseInsensitive() ? 'REGEXP_LIKE( ' . $column . ' , ? )' : 'REGEXP_LIKE( LOWER(' . $column . ') , ?, \'i\' )';
360			break;
361
362			case 'pgsql':
363			$sql = !$this->config->isCaseInsensitive() ? $column . ' ~ ?' : $column . ' ~* ? ';
364			break;
365
366			default:
367			$sql = !$this->config
368			->isCaseInsensitive() ? $column . ' REGEXP ?' : 'LOWER(' . $column . ') REGEXP ?';
369			$keyword = Str::lower($keyword);
370			}
371
372			$this->query->whereRaw($sql, [$keyword]);
373			}
374
375			/**
376			* Compile query builder where clause depending on configurations.
377			*
378			* @param mixed $query
379			* @param string $column
380			* @param string $keyword
381			* @param string $relation
382			*/
383			protected function compileQuerySearch($query, $column, $keyword, $relation = 'or')
384			{
385			$column = $this->addTablePrefix($query, $column);
386			$column = $this->castColumn($column);
387			$sql = $column . ' LIKE ?';
388
389			if ($this->config->isCaseInsensitive()) {
390			$sql = 'LOWER(' . $column . ') LIKE ?';
391			}
392
393			$query->{$relation . 'WhereRaw'}($sql, [$this->prepareKeyword($keyword)]);
394			}
395
396			/**
397			* Patch for fix about ambiguous field.
398			* Ambiguous field error will appear when query use join table and search with keyword.
399			*
400			* @param mixed $query
401			* @param string $column
402			* @return string
403			*/
404			protected function addTablePrefix($query, $column)
405			{
406			if (strpos($column, '.') === false) {
407			$q = $this->getBaseQueryBuilder($query);
408			if (!$q->from instanceof Expression) {
409			$column = $q->from . '.' . $column;
410			}
411			}
412
413			return $this->wrap($column);
414			}
415
416			/**
417			* Wrap a column and cast based on database driver.
418			*
419			* @param string $column
420			* @return string
421			*/
422			protected function castColumn($column)
423			{
424			switch ($this->connection->getDriverName()) {
425			case 'pgsql':
426			return 'CAST(' . $column . ' as TEXT)';
427			case 'firebird':
428			return 'CAST(' . $column . ' as VARCHAR(255))';
429			default:
430			return $column;
431			}
432			}
433
434			/**
435			* Prepare search keyword based on configurations.
436			*
437			* @param string $keyword
438			* @return string
439			*/
440			protected function prepareKeyword($keyword)
441			{
442			if ($this->config->isCaseInsensitive()) {
443			$keyword = Str::lower($keyword);
444			}
445
446			if ($this->config->isWildcard()) {
447			$keyword = $this->wildcardLikeString($keyword);
448			}
449
450			if ($this->config->isSmartSearch()) {
451			$keyword = "%$keyword%";
452			}
453
454			return $keyword;
455			}
456
457			/**
458			* Perform pagination.
459			*
460			* @return void
461			*/
462			public function paging()
463			{
464			$this->query->skip($this->request->input('start'))
465			->take((int) $this->request->input('length') > 0 ? $this->request->input('length') : 10);
466			}
467
468			/**
469			* Get paginated results.
470			*
471			* @return \Illuminate\Support\Collection
472			*/
473			public function results()
474			{
475			return $this->query->get();
476			}
477
478			/**
479			* Add column in collection.
480			*
481			* @param string $name
482			* @param string\|callable $content
483			* @param bool\|int $order
484			* @return \Yajra\Datatables\Engines\BaseEngine\|\Yajra\Datatables\Engines\QueryBuilderEngine
485			*/
486			public function addColumn($name, $content, $order = false)
487			{
488			$this->pushToBlacklist($name);
489
490			return parent::addColumn($name, $content, $order);
491			}
492
493			/**
494			* Get query builder instance.
495			*
496			* @return \Illuminate\Database\Eloquent\Builder\|\Illuminate\Database\Query\Builder
497			*/
498			public function getQuery()
499			{
500			return $this->query;
501			}
502
503			/**
504			* Perform global search for the given keyword.
505			*
506			* @param string $keyword
507			*/
508			protected function globalSearch($keyword)
509			{
510			$this->query->where(function ($query) use ($keyword) {
511			$query = $this->getBaseQueryBuilder($query);
512
513			collect($this->request->searchableColumnIndex())
514			->map(function ($index) {
515			return $this->getColumnName($index);
516			})
517			->reject(function ($column) {
518			return $this->isBlacklisted($column) && !$this->hasFilterColumn($column);
519			})
520			->each(function ($column) use ($keyword, $query) {
521			if ($this->hasFilterColumn($column)) {
522			$this->applyFilterColumn($query, $column, $keyword, 'or');
523			} else {
524			$this->compileQuerySearch($query, $column, $keyword);
525			}
526
527			$this->isFilterApplied = true;
528			});
529			});
530			}
531
532			/**
533			* Append debug parameters on output.
534			*
535			* @param array $output
536			* @return array
537			*/
538			protected function showDebugger(array $output)
539			{
540			$output['queries'] = $this->connection->getQueryLog();
541			$output['input'] = $this->request->all();
542
543			return $output;
544			}
545			}
546

yajra / laravel-datatables

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