QueryBuilderEngine::count() - Code Metrics - Inspection of "Merge branch 'hotfix/v5.12.2'" - yajra/laravel-datatables - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 39f28d...bd6e2c )

by Arjay

created 2015-12-02 05:55 UTC

QueryBuilderEngine::count() A

↳ Parent: QueryBuilderEngine

Complexity

Conditions	2
Paths	2

Size

Total Lines	13
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	1	Features	0

Metric	Value
dl	0
loc	13
c	2
b	1
f	0
rs	9.4286
cc	2
eloc	7
nc	2
nop	0

<?php

namespace yajra\Datatables\Engines;

/**
 * Laravel Datatables Query Builder Engine
 *
 * @package  Laravel
 * @category Package
 * @author   Arjay Angeles <[email protected]>
 */

use Closure;
use Illuminate\Database\Query\Builder;
use Illuminate\Support\Str;
use yajra\Datatables\Contracts\DataTableEngine;
use yajra\Datatables\Helper;
use yajra\Datatables\Request;

class QueryBuilderEngine extends BaseEngine implements DataTableEngine
{
    /**
     * @param \Illuminate\Database\Query\Builder $builder
     * @param \yajra\Datatables\Request $request
     */
    public function __construct(Builder $builder, Request $request)
    {
        $this->query = $builder;
        $this->init($request, $builder);
    }

    /**
     * Initialize attributes.
     *
     * @param  \yajra\Datatables\Request $request
     * @param  \Illuminate\Database\Query\Builder $builder
     * @param  string $type
     */
    protected function init($request, $builder, $type = 'builder')

    {
        $this->request    = $request;
        $this->query_type = $type;
        $this->columns    = $builder->columns;
        $this->connection = $builder->getConnection();
        $this->prefix     = $this->connection->getTablePrefix();
        $this->database   = $this->connection->getDriverName();
        if ($this->isDebugging()) {
            $this->connection->enableQueryLog();
        }
    }

    /**
     * @inheritdoc
     */
    public function filter(Closure $callback)
    {
        $this->overrideGlobalSearch($callback, $this->query);

        return $this;
    }

    /**
     * @inheritdoc
     */
    public function make($mDataSupport = false, $orderFirst = false)
    {
        return parent::make($mDataSupport, $orderFirst);
    }

    /**
     * Counts current query.
     *
     * @return int
     */
    public function count()
    {
        $myQuery = clone $this->query;
        // if its a normal query ( no union, having and distinct word )
        // replace the select with static text to improve performance
        if ( ! Str::contains(Str::lower($myQuery->toSql()), ['union', 'having', 'distinct'])) {
            $row_count = $this->connection->getQueryGrammar()->wrap('row_count');
            $myQuery->select($this->connection->raw("'1' as {$row_count}"));
        }

        return $this->connection->table($this->connection->raw('(' . $myQuery->toSql() . ') count_row_table'))
                                ->setBindings($myQuery->getBindings())->count();
    }

    /**
     * @inheritdoc
     */
    public function filtering()
    {
        $this->query->where(
            function ($query) {
                $keyword = $this->setupKeyword($this->request->keyword());
                foreach ($this->request->searchableColumnIndex() as $index) {
                    $columnName = $this->setupColumnName($index);

                    if (isset($this->columnDef['filter'][$columnName])) {
                        $method     = Helper::getOrMethod($this->columnDef['filter'][$columnName]['method']);
                        $parameters = $this->columnDef['filter'][$columnName]['parameters'];
                        $this->compileColumnQuery(
                            $this->getQueryBuilder($query), $method, $parameters, $columnName, $keyword
                        );
                    } else {
                        $this->compileGlobalSearch($this->getQueryBuilder($query), $columnName, $keyword);
                    }

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

    /**
     * Perform filter column on selected field.
     *
     * @param mixed $query
     * @param string $method
     * @param mixed $parameters
     * @param string $column
     * @param string $keyword
     */
    protected function compileColumnQuery($query, $method, $parameters, $column, $keyword)
    {
        if (method_exists($query, $method)
            && count($parameters) <= with(new \ReflectionMethod($query, $method))->getNumberOfParameters()
        ) {
            if (Str::contains(Str::lower($method), 'raw')
                || Str::contains(Str::lower($method), 'exists')
            ) {
                call_user_func_array(
                    [$query, $method],
                    $this->parameterize($parameters, $keyword)
                );
            } else {
                call_user_func_array(
                    [$query, $method],
                    $this->parameterize($column, $parameters, $keyword)
                );
            }
        }
    }

    /**
     * Build Query Builder Parameters.
     *
     * @return array
     */
    protected function parameterize()
    {
        $args       = func_get_args();
        $keyword    = count($args) > 2 ? $args[2] : $args[1];
        $parameters = Helper::buildParameters($args);
        $parameters = Helper::replacePatternWithKeyword($parameters, $keyword, '$1');

        return $parameters;
    }

    /**
     * Add a query on global search.
     *
     * @param mixed $query
     * @param string $column
     * @param string $keyword
     */
    protected function compileGlobalSearch($query, $column, $keyword)
    {
        $column = $this->castColumn($column);
        $sql    = $column . ' LIKE ?';
        if ($this->isCaseInsensitive()) {
            $sql     = 'LOWER(' . $column . ') LIKE ?';
            $keyword = Str::lower($keyword);
        }

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

    /**
     * Wrap a column and cast in pgsql
     *
     * @param  string $column
     * @return string
     */
    public function castColumn($column)
    {
        $column = $this->connection->getQueryGrammar()->wrap($column);
        if ($this->database === 'pgsql') {
            $column = 'CAST(' . $column . ' as TEXT)';
        }

        return $column;
    }

    /**
     * @inheritdoc
     */
    public function columnSearch()
    {
        $columns = $this->request->get('columns');
        for ($i = 0, $c = count($columns); $i < $c; $i++) {
            if ($this->request->isColumnSearchable($i)) {
                $column = $this->setupColumnName($i);
                if ($this->request->isRegex($i)) {
                    $keyword = $this->request->columnKeyword($i);
                } else {
                    $keyword = $this->setupKeyword($this->request->columnKeyword($i));
                }

                if (isset($this->columnDef['filter'][$column])) {
                    $method     = $this->columnDef['filter'][$column]['method'];
                    $parameters = $this->columnDef['filter'][$column]['parameters'];
                    $this->compileColumnQuery($this->getQueryBuilder(), $method, $parameters, $column, $keyword);
                } else {
                    $column = $this->castColumn($column);
                    if ($this->isCaseInsensitive()) {
                        if ($this->request->isRegex($i)) {
                            $this->query->whereRaw('LOWER(' . $column . ') REGEXP ?', [Str::lower($keyword)]);
                        } else {
                            $this->query->whereRaw('LOWER(' . $column . ') LIKE ?', [Str::lower($keyword)]);
                        }
                    } else {
                        $col = strstr($column, '(') ? $this->connection->raw($column) : $column;
                        if ($this->request->isRegex($i)) {
                            $this->query->whereRaw($col . ' REGEXP ?', [$keyword]);
                        } else {
                            $this->query->whereRaw($col . ' LIKE ?', [$keyword]);
                        }
                    }
                }

                $this->isFilterApplied = true;
            }
        }
    }

    /**
     * @inheritdoc
     */
    public function ordering()
    {
        foreach ($this->request->orderableColumns() as $orderable) {
            $column = $this->setupColumnName($orderable['column']);
            if (isset($this->columnDef['order'][$column])) {
                $method     = $this->columnDef['order'][$column]['method'];
                $parameters = $this->columnDef['order'][$column]['parameters'];
                $this->compileColumnQuery(
                    $this->getQueryBuilder(), $method, $parameters, $column, $orderable['direction']
                );
            } else {
                /**
                 * If we perform a select("*"), the ORDER BY clause will look like this:
                 * ORDER BY * ASC
                 * which causes a query exception
                 * The temporary fix is modify `*` column to `id` column
                 */
                if ($column === '*') $column = 'id';
                $this->getQueryBuilder()->orderBy($column, $orderable['direction']);
            }
        }
    }

    /**
     * @inheritdoc
     */
    public function paging()
    {
        $this->query->skip($this->request['start'])
                    ->take((int) $this->request['length'] > 0 ? $this->request['length'] : 10);
    }

    /**
     * Get results
     *
     * @return array|static[]
     */
    public function results()
    {
        return $this->query->get();
    }

}


1			<?php
2
3			namespace yajra\Datatables\Engines;
4
5			/**
6			* Laravel Datatables Query Builder Engine
7			*
8			* @package Laravel
9			* @category Package
10			* @author Arjay Angeles <[email protected]>
11			*/
12
13			use Closure;
14			use Illuminate\Database\Query\Builder;
15			use Illuminate\Support\Str;
16			use yajra\Datatables\Contracts\DataTableEngine;
17			use yajra\Datatables\Helper;
18			use yajra\Datatables\Request;
19
20			class QueryBuilderEngine extends BaseEngine implements DataTableEngine
21			{
22			/**
23			* @param \Illuminate\Database\Query\Builder $builder
24			* @param \yajra\Datatables\Request $request
25			*/
26			public function __construct(Builder $builder, Request $request)
27			{
28			$this->query = $builder;
29			$this->init($request, $builder);
30			}
31
32			/**
33			* Initialize attributes.
34			*
35			* @param \yajra\Datatables\Request $request
36			* @param \Illuminate\Database\Query\Builder $builder
37			* @param string $type
38			*/
39			protected function init($request, $builder, $type = 'builder')
			0 ignored issues – show Bug introduced 2015-12-02 02:38 UTC by Report Bug Copy Issue Report You have injected the Request via parameter `$request`. This is generally not recommended as there might be multiple instances during a request cycle (f.e. when using sub-requests). Instead, it is recommended to inject the RequestStack and retrieve the current request each time you need it via `getCurrentRequest()`. Loading history...
40			{
41			$this->request = $request;
42			$this->query_type = $type;
43			$this->columns = $builder->columns;
44			$this->connection = $builder->getConnection();
45			$this->prefix = $this->connection->getTablePrefix();
46			$this->database = $this->connection->getDriverName();
47			if ($this->isDebugging()) {
48			$this->connection->enableQueryLog();
49			}
50			}
51
52			/**
53			* @inheritdoc
54			*/
55			public function filter(Closure $callback)
56			{
57			$this->overrideGlobalSearch($callback, $this->query);
58
59			return $this;
60			}
61
62			/**
63			* @inheritdoc
64			*/
65			public function make($mDataSupport = false, $orderFirst = false)
66			{
67			return parent::make($mDataSupport, $orderFirst);
68			}
69
70			/**
71			* Counts current query.
72			*
73			* @return int
74			*/
75			public function count()
76			{
77			$myQuery = clone $this->query;
78			// if its a normal query ( no union, having and distinct word )
79			// replace the select with static text to improve performance
80			if ( ! Str::contains(Str::lower($myQuery->toSql()), ['union', 'having', 'distinct'])) {
81			$row_count = $this->connection->getQueryGrammar()->wrap('row_count');
82			$myQuery->select($this->connection->raw("'1' as {$row_count}"));
83			}
84
85			return $this->connection->table($this->connection->raw('(' . $myQuery->toSql() . ') count_row_table'))
86			->setBindings($myQuery->getBindings())->count();
87			}
88
89			/**
90			* @inheritdoc
91			*/
92			public function filtering()
93			{
94			$this->query->where(
95			function ($query) {
96			$keyword = $this->setupKeyword($this->request->keyword());
97			foreach ($this->request->searchableColumnIndex() as $index) {
98			$columnName = $this->setupColumnName($index);
99
100			if (isset($this->columnDef['filter'][$columnName])) {
101			$method = Helper::getOrMethod($this->columnDef['filter'][$columnName]['method']);
102			$parameters = $this->columnDef['filter'][$columnName]['parameters'];
103			$this->compileColumnQuery(
104			$this->getQueryBuilder($query), $method, $parameters, $columnName, $keyword
105			);
106			} else {
107			$this->compileGlobalSearch($this->getQueryBuilder($query), $columnName, $keyword);
108			}
109
110			$this->isFilterApplied = true;
111			}
112			}
113			);
114			}
115
116			/**
117			* Perform filter column on selected field.
118			*
119			* @param mixed $query
120			* @param string $method
121			* @param mixed $parameters
122			* @param string $column
123			* @param string $keyword
124			*/
125			protected function compileColumnQuery($query, $method, $parameters, $column, $keyword)
126			{
127			if (method_exists($query, $method)
128			&& count($parameters) <= with(new \ReflectionMethod($query, $method))->getNumberOfParameters()
129			) {
130			if (Str::contains(Str::lower($method), 'raw')
131			\|\| Str::contains(Str::lower($method), 'exists')
132			) {
133			call_user_func_array(
134			[$query, $method],
135			$this->parameterize($parameters, $keyword)
136			);
137			} else {
138			call_user_func_array(
139			[$query, $method],
140			$this->parameterize($column, $parameters, $keyword)
141			);
142			}
143			}
144			}
145
146			/**
147			* Build Query Builder Parameters.
148			*
149			* @return array
150			*/
151			protected function parameterize()
152			{
153			$args = func_get_args();
154			$keyword = count($args) > 2 ? $args[2] : $args[1];
155			$parameters = Helper::buildParameters($args);
156			$parameters = Helper::replacePatternWithKeyword($parameters, $keyword, '$1');
157
158			return $parameters;
159			}
160
161			/**
162			* Add a query on global search.
163			*
164			* @param mixed $query
165			* @param string $column
166			* @param string $keyword
167			*/
168			protected function compileGlobalSearch($query, $column, $keyword)
169			{
170			$column = $this->castColumn($column);
171			$sql = $column . ' LIKE ?';
172			if ($this->isCaseInsensitive()) {
173			$sql = 'LOWER(' . $column . ') LIKE ?';
174			$keyword = Str::lower($keyword);
175			}
176
177			$query->orWhereRaw($sql, [$keyword]);
178			}
179
180			/**
181			* Wrap a column and cast in pgsql
182			*
183			* @param string $column
184			* @return string
185			*/
186			public function castColumn($column)
187			{
188			$column = $this->connection->getQueryGrammar()->wrap($column);
189			if ($this->database === 'pgsql') {
190			$column = 'CAST(' . $column . ' as TEXT)';
191			}
192
193			return $column;
194			}
195
196			/**
197			* @inheritdoc
198			*/
199			public function columnSearch()
200			{
201			$columns = $this->request->get('columns');
202			for ($i = 0, $c = count($columns); $i < $c; $i++) {
203			if ($this->request->isColumnSearchable($i)) {
204			$column = $this->setupColumnName($i);
205			if ($this->request->isRegex($i)) {
206			$keyword = $this->request->columnKeyword($i);
207			} else {
208			$keyword = $this->setupKeyword($this->request->columnKeyword($i));
209			}
210
211			if (isset($this->columnDef['filter'][$column])) {
212			$method = $this->columnDef['filter'][$column]['method'];
213			$parameters = $this->columnDef['filter'][$column]['parameters'];
214			$this->compileColumnQuery($this->getQueryBuilder(), $method, $parameters, $column, $keyword);
215			} else {
216			$column = $this->castColumn($column);
217			if ($this->isCaseInsensitive()) {
218			if ($this->request->isRegex($i)) {
219			$this->query->whereRaw('LOWER(' . $column . ') REGEXP ?', [Str::lower($keyword)]);
220			} else {
221			$this->query->whereRaw('LOWER(' . $column . ') LIKE ?', [Str::lower($keyword)]);
222			}
223			} else {
224			$col = strstr($column, '(') ? $this->connection->raw($column) : $column;
225			if ($this->request->isRegex($i)) {
226			$this->query->whereRaw($col . ' REGEXP ?', [$keyword]);
227			} else {
228			$this->query->whereRaw($col . ' LIKE ?', [$keyword]);
229			}
230			}
231			}
232
233			$this->isFilterApplied = true;
234			}
235			}
236			}
237
238			/**
239			* @inheritdoc
240			*/
241			public function ordering()
242			{
243			foreach ($this->request->orderableColumns() as $orderable) {
244			$column = $this->setupColumnName($orderable['column']);
245			if (isset($this->columnDef['order'][$column])) {
246			$method = $this->columnDef['order'][$column]['method'];
247			$parameters = $this->columnDef['order'][$column]['parameters'];
248			$this->compileColumnQuery(
249			$this->getQueryBuilder(), $method, $parameters, $column, $orderable['direction']
250			);
251			} else {
252			/**
253			* If we perform a select("*"), the ORDER BY clause will look like this:
254			* ORDER BY * ASC
255			* which causes a query exception
256			* The temporary fix is modify `*` column to `id` column
257			*/
258			if ($column === '*') $column = 'id';
259			$this->getQueryBuilder()->orderBy($column, $orderable['direction']);
260			}
261			}
262			}
263
264			/**
265			* @inheritdoc
266			*/
267			public function paging()
268			{
269			$this->query->skip($this->request['start'])
270			->take((int) $this->request['length'] > 0 ? $this->request['length'] : 10);
271			}
272
273			/**
274			* Get results
275			*
276			* @return array\|static[]
277			*/
278			public function results()
279			{
280			return $this->query->get();
281			}
282
283			}
284

yajra / laravel-datatables

Push — master ( 39f28d...bd6e2c )

QueryBuilderEngine::count() A

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