MongoCursor::fields() - Code Metrics - Inspection of "[WIP] Implement command cursors and aggregation" - alcaeus/mongo-php-adapter - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#10)

by Andreas

created 2016-01-01 15:20 UTC

MongoCursor::fields() A

↳ Parent: MongoCursor

Complexity

Conditions	1
Paths	1

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Metric	Value
dl	0
loc	7
rs	9.4286
cc	1
eloc	4
nc	1
nop	1

<?php
/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

use Alcaeus\MongoDbAdapter\AbstractCursor;
use MongoDB\Driver\Cursor;
use MongoDB\Driver\ReadPreference;
use MongoDB\Operation\Find;

/**
 * Result object for database query.
 * @link http://www.php.net/manual/en/class.mongocursor.php
 */
class MongoCursor extends AbstractCursor implements Iterator
namespace YourVendor;

class YourClass { }
{
    /**
     * @var bool
     */
    public static $slaveOkay = false;

    /**
     * @var int
     */
    public static $timeout = 30000;

    /**
     * @var array
     */
    protected $optionNames = [
        'allowPartialResults',
        'batchSize',
        'cursorType',
        'limit',
        'maxTimeMS',
        'modifiers',
        'noCursorTimeout',
        'projection',
        'readPreference',
        'skip',
        'sort',
    ];

    /**
     * @var array
     */
    protected $projection;

    /**
     * @var array
     */
    protected $query;

    protected $allowPartialResults;
    protected $awaitData;
    protected $flags;
    protected $hint;
    protected $limit;
    protected $maxTimeMS;
    protected $noCursorTimeout;
    protected $options = [];
    protected $skip;
    protected $snapshot;
    protected $sort;
    protected $tailable;

    /**
     * Create a new cursor
     * @link http://www.php.net/manual/en/mongocursor.construct.php
     * @param MongoClient $connection Database connection.
     * @param string $ns Full name of database and collection.
     * @param array $query Database query.
     * @param array $fields Fields to return.
     */
    public function __construct(MongoClient $connection, $ns, array $query = array(), array $fields = array())
    {
        parent::__construct($connection, $ns);

        $this->query = $query;
        $this->projection = $fields;
    }

    /**
     * Adds a top-level key/value pair to a query
     * @link http://www.php.net/manual/en/mongocursor.addoption.php
     * @param string $key Fieldname to add.
     * @param mixed $value Value to add.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function addOption($key, $value)
    {
        $this->errorIfOpened();
        $this->options[$key] = $value;

        return $this;
    }

    /**
     * (PECL mongo &gt;= 1.2.11)<br/>
     * Sets whether this cursor will wait for a while for a tailable cursor to return more data
     * @param bool $wait [optional] <p>If the cursor should wait for more data to become available.</p>
     * @return MongoCursor Returns this cursor.
     */
    public function awaitData($wait = true)
    {
        $this->errorIfOpened();
        $this->awaitData = $wait;

        return $this;
    }


    /**
     * Counts the number of results for this query
     * @link http://www.php.net/manual/en/mongocursor.count.php
     * @param bool $foundOnly Send cursor limit and skip information to the count function, if applicable.
     * @return int The number of documents returned by this cursor's query.
     */
    public function count($foundOnly = false)
    {
        if ($foundOnly && $this->cursor !== null) {
            return iterator_count($this->ensureIterator());
        }

        $optionNames = ['hint', 'maxTimeMS'];
        if ($foundOnly) {
            $optionNames = array_merge($optionNames, ['limit', 'skip']);
        }

        $options = $this->getOptions($optionNames) + $this->options;

        $count = $this->collection->count($this->query, $options);
        return $count;
    }


    /**
     * Execute the query
     * @link http://www.php.net/manual/en/mongocursor.doquery.php
     * @throws MongoConnectionException if it cannot reach the database.
     * @return void
     */
    protected function doQuery()
    {
        $options = $this->getOptions() + $this->options;

        $this->cursor = $this->collection->find($this->query, $options);

    }

    /**
     * Return an explanation of the query, often useful for optimization and debugging
     * @link http://www.php.net/manual/en/mongocursor.explain.php
     * @return array Returns an explanation of the query.
     */
    public function explain()
    {
        $this->notImplemented();
    }

    /**
     * Sets the fields for a query
     * @link http://www.php.net/manual/en/mongocursor.fields.php
     * @param array $f Fields to return (or not return).
     * @throws MongoCursorException
     * @return MongoCursor
     */
    public function fields(array $f)
    {
        $this->errorIfOpened();
        $this->projection = $f;

        return $this;
    }

    /**
     * Return the next object to which this cursor points, and advance the cursor
     * @link http://www.php.net/manual/en/mongocursor.getnext.php
     * @throws MongoConnectionException
     * @throws MongoCursorTimeoutException
     * @return array Returns the next object
     */
    public function getNext()
    {
        $this->next();

        return $this->current();
    }

    /**
     * Checks if there are any more elements in this cursor
     * @link http://www.php.net/manual/en/mongocursor.hasnext.php
     * @throws MongoConnectionException
     * @throws MongoCursorTimeoutException
     * @return bool Returns true if there is another element
     */
    public function hasNext()
    {
        $this->errorIfOpened();
        $this->notImplemented();
    }

    /**
     * Gives the database a hint about the query
     * @link http://www.php.net/manual/en/mongocursor.hint.php
     * @param array|string $keyPattern Indexes to use for the query.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function hint($keyPattern)
    {
        $this->errorIfOpened();
        $this->hint = $keyPattern;

        return $this;
    }

    /**
     * Sets whether this cursor will timeout
     * @link http://www.php.net/manual/en/mongocursor.immortal.php
     * @param bool $liveForever If the cursor should be immortal.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function immortal($liveForever = true)
    {
        $this->errorIfOpened();
        $this->noCursorTimeout = $liveForever;

        return $this;
    }

    /**
     * Limits the number of results returned
     * @link http://www.php.net/manual/en/mongocursor.limit.php
     * @param int $num The number of results to return.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function limit($num)
    {
        $this->errorIfOpened();
        $this->limit = $num;

        return $this;
    }

    /**
     * @param int $ms
     * @return $this
     * @throws MongoCursorException
     */
    public function maxTimeMS($ms)
    {
        $this->errorIfOpened();
        $this->maxTimeMS = $ms;

        return $this;
    }

    /**
     * @link http://www.php.net/manual/en/mongocursor.partial.php
     * @param bool $okay [optional] <p>If receiving partial results is okay.</p>
     * @return MongoCursor Returns this cursor.
     */
    public function partial($okay = true)
    {
        $this->allowPartialResults = $okay;

        return $this;
    }

    /**
     * Clears the cursor
     * @link http://www.php.net/manual/en/mongocursor.reset.php
     * @return void
     */
    public function reset()
    {
        parent::reset();
    }

    /**
     * @link http://www.php.net/manual/en/mongocursor.setflag.php
     * @param int $flag
     * @param bool $set
     * @return MongoCursor
     */
    public function setFlag($flag, $set = true)

    {
        $this->notImplemented();
    }

    /**
     * Skips a number of results
     * @link http://www.php.net/manual/en/mongocursor.skip.php
     * @param int $num The number of results to skip.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function skip($num)
    {
        $this->errorIfOpened();
        $this->skip = $num;

        return $this;
    }

    /**
     * Sets whether this query can be done on a slave
     * This method will override the static class variable slaveOkay.
     * @link http://www.php.net/manual/en/mongocursor.slaveOkay.php
     * @param boolean $okay If it is okay to query the slave.
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function slaveOkay($okay = true)
    {
        $this->errorIfOpened();
        static::$slaveOkay = $okay;
    }

    /**
     * Use snapshot mode for the query
     * @link http://www.php.net/manual/en/mongocursor.snapshot.php
     * @throws MongoCursorException
     * @return MongoCursor Returns this cursor
     */
    public function snapshot()
    {
        $this->errorIfOpened();
        $this->snapshot = true;

        return $this;
    }

    /**
     * Sorts the results by given fields
     * @link http://www.php.net/manual/en/mongocursor.sort.php
     * @param array $fields An array of fields by which to sort. Each element in the array has as key the field name, and as value either 1 for ascending sort, or -1 for descending sort
     * @throws MongoCursorException
     * @return MongoCursor Returns the same cursor that this method was called on
     */
    public function sort(array $fields)
    {
        $this->errorIfOpened();
        $this->sort = $fields;

        return $this;
    }

    /**
     * Sets whether this cursor will be left open after fetching the last results
     * @link http://www.php.net/manual/en/mongocursor.tailable.php
     * @param bool $tail If the cursor should be tailable.
     * @return MongoCursor Returns this cursor
     */
    public function tailable($tail = true)
    {
        $this->errorIfOpened();
        $this->tailable = $tail;

        return $this;
    }

    /**
     * @return int|null
     */
    protected function convertCursorType()
    {
        if (! $this->tailable) {
            return null;
        }

        return $this->awaitData ? Find::TAILABLE_AWAIT : Find::TAILABLE;
    }

    protected function convertModifiers()
    {
        $modifiers = array_key_exists('modifiers', $this->options) ? $this->options['modifiers'] : [];

        foreach (['hint', 'snapshot'] as $modifier) {
            if ($this->$modifier === null) {
                continue;
            }

            $modifiers['$' . $modifier] = $this->$modifier;
        }

        return $modifiers;
    }

    /**
     * {@inheritdoc}
     */
    protected function convertReadPreference()
    {
        $readPreference = parent::convertReadPreference();
        if ($readPreference === null && static::$slaveOkay) {
            $readPreference = new ReadPreference(ReadPreference::RP_SECONDARY_PREFERRED);
        }

        return $readPreference;
    }

    /**
     * @return Cursor
     */
    protected function ensureCursor()
    {
        if ($this->cursor === null) {
            $this->doQuery();
        }

        return $this->cursor;
    }

    /**
     * @return array
     */
    protected function getCursorInfo()
    {
        return [
            'ns' => $this->ns,
            'limit' => $this->limit,
            'batchSize' => $this->batchSize,
            'skip' => $this->skip,
            'flags' => $this->flags,
            'query' => $this->query,
            'fields' => $this->projection,
        ];
    }
}


1			<?php
2			/*
3			* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
4			* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
5			* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
6			* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
7			* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
8			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
9			* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
10			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
11			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
12			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
13			* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14			*/
15
16			use Alcaeus\MongoDbAdapter\AbstractCursor;
17			use MongoDB\Driver\Cursor;
18			use MongoDB\Driver\ReadPreference;
19			use MongoDB\Operation\Find;
20
21			/**
22			* Result object for database query.
23			* @link http://www.php.net/manual/en/class.mongocursor.php
24			*/
25			class MongoCursor extends AbstractCursor implements Iterator
			1 ignored issue – show Coding Style Compatibility introduced 2015-12-29 16:10 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
26			{
27			/**
28			* @var bool
29			*/
30			public static $slaveOkay = false;
31
32			/**
33			* @var int
34			*/
35			public static $timeout = 30000;
36
37			/**
38			* @var array
39			*/
40			protected $optionNames = [
41			'allowPartialResults',
42			'batchSize',
43			'cursorType',
44			'limit',
45			'maxTimeMS',
46			'modifiers',
47			'noCursorTimeout',
48			'projection',
49			'readPreference',
50			'skip',
51			'sort',
52			];
53
54			/**
55			* @var array
56			*/
57			protected $projection;
58
59			/**
60			* @var array
61			*/
62			protected $query;
63
64			protected $allowPartialResults;
65			protected $awaitData;
66			protected $flags;
67			protected $hint;
68			protected $limit;
69			protected $maxTimeMS;
70			protected $noCursorTimeout;
71			protected $options = [];
72			protected $skip;
73			protected $snapshot;
74			protected $sort;
75			protected $tailable;
76
77			/**
78			* Create a new cursor
79			* @link http://www.php.net/manual/en/mongocursor.construct.php
80			* @param MongoClient $connection Database connection.
81			* @param string $ns Full name of database and collection.
82			* @param array $query Database query.
83			* @param array $fields Fields to return.
84			*/
85			public function __construct(MongoClient $connection, $ns, array $query = array(), array $fields = array())
86			{
87			parent::__construct($connection, $ns);
88
89			$this->query = $query;
90			$this->projection = $fields;
91			}
92
93			/**
94			* Adds a top-level key/value pair to a query
95			* @link http://www.php.net/manual/en/mongocursor.addoption.php
96			* @param string $key Fieldname to add.
97			* @param mixed $value Value to add.
98			* @throws MongoCursorException
99			* @return MongoCursor Returns this cursor
100			*/
101			public function addOption($key, $value)
102			{
103			$this->errorIfOpened();
104			$this->options[$key] = $value;
105
106			return $this;
107			}
108
109			/**
110			* (PECL mongo >= 1.2.11)<br/>
111			* Sets whether this cursor will wait for a while for a tailable cursor to return more data
112			* @param bool $wait [optional] <p>If the cursor should wait for more data to become available.</p>
113			* @return MongoCursor Returns this cursor.
114			*/
115			public function awaitData($wait = true)
116			{
117			$this->errorIfOpened();
118			$this->awaitData = $wait;
119
120			return $this;
121			}
122
123
124			/**
125			* Counts the number of results for this query
126			* @link http://www.php.net/manual/en/mongocursor.count.php
127			* @param bool $foundOnly Send cursor limit and skip information to the count function, if applicable.
128			* @return int The number of documents returned by this cursor's query.
129			*/
130			public function count($foundOnly = false)
131			{
132			if ($foundOnly && $this->cursor !== null) {
133			return iterator_count($this->ensureIterator());
134			}
135
136			$optionNames = ['hint', 'maxTimeMS'];
137			if ($foundOnly) {
138			$optionNames = array_merge($optionNames, ['limit', 'skip']);
139			}
140
141			$options = $this->getOptions($optionNames) + $this->options;
142
143			$count = $this->collection->count($this->query, $options);
144			return $count;
145			}
146
147
148			/**
149			* Execute the query
150			* @link http://www.php.net/manual/en/mongocursor.doquery.php
151			* @throws MongoConnectionException if it cannot reach the database.
152			* @return void
153			*/
154			protected function doQuery()
155			{
156			$options = $this->getOptions() + $this->options;
157
158			$this->cursor = $this->collection->find($this->query, $options);
			0 ignored issues – show Documentation Bug introduced 2015-12-30 16:39 UTC by Report Bug Copy Issue Report It seems like `$this->collection->find($this->query, $options)` of type `object<MongoDB\Operation\Cursor>` is incompatible with the declared type `object<MongoDB\Driver\Cursor>` of property `$cursor`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
159			}
160
161			/**
162			* Return an explanation of the query, often useful for optimization and debugging
163			* @link http://www.php.net/manual/en/mongocursor.explain.php
164			* @return array Returns an explanation of the query.
165			*/
166			public function explain()
167			{
168			$this->notImplemented();
169			}
170
171			/**
172			* Sets the fields for a query
173			* @link http://www.php.net/manual/en/mongocursor.fields.php
174			* @param array $f Fields to return (or not return).
175			* @throws MongoCursorException
176			* @return MongoCursor
177			*/
178			public function fields(array $f)
179			{
180			$this->errorIfOpened();
181			$this->projection = $f;
182
183			return $this;
184			}
185
186			/**
187			* Return the next object to which this cursor points, and advance the cursor
188			* @link http://www.php.net/manual/en/mongocursor.getnext.php
189			* @throws MongoConnectionException
190			* @throws MongoCursorTimeoutException
191			* @return array Returns the next object
192			*/
193			public function getNext()
194			{
195			$this->next();
196
197			return $this->current();
198			}
199
200			/**
201			* Checks if there are any more elements in this cursor
202			* @link http://www.php.net/manual/en/mongocursor.hasnext.php
203			* @throws MongoConnectionException
204			* @throws MongoCursorTimeoutException
205			* @return bool Returns true if there is another element
206			*/
207			public function hasNext()
208			{
209			$this->errorIfOpened();
210			$this->notImplemented();
211			}
212
213			/**
214			* Gives the database a hint about the query
215			* @link http://www.php.net/manual/en/mongocursor.hint.php
216			* @param array\|string $keyPattern Indexes to use for the query.
217			* @throws MongoCursorException
218			* @return MongoCursor Returns this cursor
219			*/
220			public function hint($keyPattern)
221			{
222			$this->errorIfOpened();
223			$this->hint = $keyPattern;
224
225			return $this;
226			}
227
228			/**
229			* Sets whether this cursor will timeout
230			* @link http://www.php.net/manual/en/mongocursor.immortal.php
231			* @param bool $liveForever If the cursor should be immortal.
232			* @throws MongoCursorException
233			* @return MongoCursor Returns this cursor
234			*/
235			public function immortal($liveForever = true)
236			{
237			$this->errorIfOpened();
238			$this->noCursorTimeout = $liveForever;
239
240			return $this;
241			}
242
243			/**
244			* Limits the number of results returned
245			* @link http://www.php.net/manual/en/mongocursor.limit.php
246			* @param int $num The number of results to return.
247			* @throws MongoCursorException
248			* @return MongoCursor Returns this cursor
249			*/
250			public function limit($num)
251			{
252			$this->errorIfOpened();
253			$this->limit = $num;
254
255			return $this;
256			}
257
258			/**
259			* @param int $ms
260			* @return $this
261			* @throws MongoCursorException
262			*/
263			public function maxTimeMS($ms)
264			{
265			$this->errorIfOpened();
266			$this->maxTimeMS = $ms;
267
268			return $this;
269			}
270
271			/**
272			* @link http://www.php.net/manual/en/mongocursor.partial.php
273			* @param bool $okay [optional] <p>If receiving partial results is okay.</p>
274			* @return MongoCursor Returns this cursor.
275			*/
276			public function partial($okay = true)
277			{
278			$this->allowPartialResults = $okay;
279
280			return $this;
281			}
282
283			/**
284			* Clears the cursor
285			* @link http://www.php.net/manual/en/mongocursor.reset.php
286			* @return void
287			*/
288			public function reset()
289			{
290			parent::reset();
291			}
292
293			/**
294			* @link http://www.php.net/manual/en/mongocursor.setflag.php
295			* @param int $flag
296			* @param bool $set
297			* @return MongoCursor
298			*/
299			public function setFlag($flag, $set = true)
			0 ignored issues – show Unused Code introduced 2015-12-29 16:10 UTC by Report Bug Copy Issue Report The parameter `$flag` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history... Unused Code introduced 2015-12-29 16:10 UTC by Report Bug Copy Issue Report The parameter `$set` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
300			{
301			$this->notImplemented();
302			}
303
304			/**
305			* Skips a number of results
306			* @link http://www.php.net/manual/en/mongocursor.skip.php
307			* @param int $num The number of results to skip.
308			* @throws MongoCursorException
309			* @return MongoCursor Returns this cursor
310			*/
311			public function skip($num)
312			{
313			$this->errorIfOpened();
314			$this->skip = $num;
315
316			return $this;
317			}
318
319			/**
320			* Sets whether this query can be done on a slave
321			* This method will override the static class variable slaveOkay.
322			* @link http://www.php.net/manual/en/mongocursor.slaveOkay.php
323			* @param boolean $okay If it is okay to query the slave.
324			* @throws MongoCursorException
325			* @return MongoCursor Returns this cursor
326			*/
327			public function slaveOkay($okay = true)
328			{
329			$this->errorIfOpened();
330			static::$slaveOkay = $okay;
331			}
332
333			/**
334			* Use snapshot mode for the query
335			* @link http://www.php.net/manual/en/mongocursor.snapshot.php
336			* @throws MongoCursorException
337			* @return MongoCursor Returns this cursor
338			*/
339			public function snapshot()
340			{
341			$this->errorIfOpened();
342			$this->snapshot = true;
343
344			return $this;
345			}
346
347			/**
348			* Sorts the results by given fields
349			* @link http://www.php.net/manual/en/mongocursor.sort.php
350			* @param array $fields An array of fields by which to sort. Each element in the array has as key the field name, and as value either 1 for ascending sort, or -1 for descending sort
351			* @throws MongoCursorException
352			* @return MongoCursor Returns the same cursor that this method was called on
353			*/
354			public function sort(array $fields)
355			{
356			$this->errorIfOpened();
357			$this->sort = $fields;
358
359			return $this;
360			}
361
362			/**
363			* Sets whether this cursor will be left open after fetching the last results
364			* @link http://www.php.net/manual/en/mongocursor.tailable.php
365			* @param bool $tail If the cursor should be tailable.
366			* @return MongoCursor Returns this cursor
367			*/
368			public function tailable($tail = true)
369			{
370			$this->errorIfOpened();
371			$this->tailable = $tail;
372
373			return $this;
374			}
375
376			/**
377			* @return int\|null
378			*/
379			protected function convertCursorType()
380			{
381			if (! $this->tailable) {
382			return null;
383			}
384
385			return $this->awaitData ? Find::TAILABLE_AWAIT : Find::TAILABLE;
386			}
387
388			protected function convertModifiers()
389			{
390			$modifiers = array_key_exists('modifiers', $this->options) ? $this->options['modifiers'] : [];
391
392			foreach (['hint', 'snapshot'] as $modifier) {
393			if ($this->$modifier === null) {
394			continue;
395			}
396
397			$modifiers['$' . $modifier] = $this->$modifier;
398			}
399
400			return $modifiers;
401			}
402
403			/**
404			* {@inheritdoc}
405			*/
406			protected function convertReadPreference()
407			{
408			$readPreference = parent::convertReadPreference();
409			if ($readPreference === null && static::$slaveOkay) {
410			$readPreference = new ReadPreference(ReadPreference::RP_SECONDARY_PREFERRED);
411			}
412
413			return $readPreference;
414			}
415
416			/**
417			* @return Cursor
418			*/
419			protected function ensureCursor()
420			{
421			if ($this->cursor === null) {
422			$this->doQuery();
423			}
424
425			return $this->cursor;
426			}
427
428			/**
429			* @return array
430			*/
431			protected function getCursorInfo()
432			{
433			return [
434			'ns' => $this->ns,
435			'limit' => $this->limit,
436			'batchSize' => $this->batchSize,
437			'skip' => $this->skip,
438			'flags' => $this->flags,
439			'query' => $this->query,
440			'fields' => $this->projection,
441			];
442			}
443			}
444

alcaeus / mongo-php-adapter

Pull Request — master (#10)

MongoCursor::fields() A

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