Connection::hasHandler() - Code Metrics - Inspection of "add object identifier type support" - pomm-project/Foundation - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 2.0 ( 143803...4e64fa )

by grégoire

created 2016-05-23 13:35 UTC

Connection::hasHandler() A

↳ Parent: Connection

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Metric	Value
dl	0
loc	4
rs	10
cc	1
eloc	2
nc	1
nop	0

<?php
/*
 * This file is part of the Pomm's Foundation package.
 *
 * (c) 2014 - 2015 Grégoire HUBERT <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PommProject\Foundation\Session;

use PommProject\Foundation\Exception\ConnectionException;
use PommProject\Foundation\Exception\SqlException;

/**
 * Connection
 *
 * Manage connection through a resource handler.
 *
 * @package   Foundation
 * @copyright 2014 - 2015 Grégoire HUBERT
 * @author    Grégoire HUBERT
 * @license   X11 {@link http://opensource.org/licenses/mit-license.php}
 */
class Connection
{
    const CONNECTION_STATUS_NONE    = 0;
    const CONNECTION_STATUS_GOOD    = 1;
    const CONNECTION_STATUS_BAD     = 2;
    const CONNECTION_STATUS_CLOSED  = 3;
    const ISOLATION_READ_COMMITTED  = "READ COMMITTED";  // default
    const ISOLATION_REPEATABLE_READ = "REPEATABLE READ"; // from Pg 9.1
    const ISOLATION_SERIALIZABLE    = "SERIALIZABLE";    // changes in 9.1
    const CONSTRAINTS_DEFERRED      = "DEFERRED";
    const CONSTRAINTS_IMMEDIATE     = "IMMEDIATE";       // default
    const ACCESS_MODE_READ_ONLY     = "READ ONLY";
    const ACCESS_MODE_READ_WRITE    = "READ WRITE";      // default

    protected $handler;
    protected $configurator;
    private $is_closed = false;

    /**
     * __construct
     *
     * Constructor. Test if the given DSN is valid.
     *
     * @access public
     * @param  string $dsn
     * @param  array $configuration
     * @throws ConnectionException if pgsql extension is missing
     */
    public function __construct($dsn, array $configuration = [])
    {
        if (!function_exists('pg_connection_status')) {
            throw new ConnectionException("`pgsql` PHP extension's functions are unavailable in your environment, please make sure PostgreSQL support is enabled in PHP.");
        }

        $this->configurator = new ConnectionConfigurator($dsn);
        $this->configurator->addConfiguration($configuration);
    }

    /**
     * close
     *
     * Close the connection if any.
     *
     * @access public
     * @return Connection $this
     */
    public function close()
    {
        if ($this->hasHandler()) {
            pg_close($this->handler);
            $this->handler = null;
            $this->is_closed = true;
        }

        return $this;
    }

    /**
     * addConfiguration
     *
     * Add configuration settings. If settings exist, they are overridden.
     *
     * @access public
     * @param  array               $configuration
     * @throws  ConnectionException if connection is already up.
     * @return Connection          $this
     */
    public function addConfiguration(array $configuration)
    {
        $this
            ->checkConnectionUp("Cannot update configuration once the connection is open.")
            ->configurator->addConfiguration($configuration);

        return $this;
    }

    /**
     * addConfigurationSetting
     *
     * Add or override a configuration definition.
     *
     * @access public
     * @param  string     $name
     * @param  string     $value
     * @return Connection
     */
    public function addConfigurationSetting($name, $value)
    {
        $this->checkConnectionUp("Cannot set configuration once a connection is made with the server.")
            ->configurator->set($name, $value);

        return $this;
    }

    /**
     * getHandler
     *
     * Return the connection handler. If no connection are open, it opens one.
     *
     * @access protected
     * @throws  ConnectionException if connection is open in a bad state.
     * @return resource
     */
    protected function getHandler()
    {
        switch ($this->getConnectionStatus()) {
            case static::CONNECTION_STATUS_NONE:
                $this->launch();
                // no break
            case static::CONNECTION_STATUS_GOOD:
                return $this->handler;
            case static::CONNECTION_STATUS_BAD:
                throw new ConnectionException(
                    "Connection problem. Read your server's log about this, I have no more informations."
                );
            case static::CONNECTION_STATUS_CLOSED:
                throw new ConnectionException(
                    "Connection has been closed, no further queries can be sent."
                );
        }
    }

    /**
     * hasHandler
     *
     * Tell if a handler is set or not.
     *
     * @access protected
     * @return bool
     */
    protected function hasHandler()
    {
        return (bool) ($this->handler !== null);
    }

    /**
     * getConnectionStatus
     *
     * Return a connection status.
     *
     * @access public
     * @return int
     */
    public function getConnectionStatus()
    {
        if (!$this->hasHandler()) {
            if ($this->is_closed) {
                return static::CONNECTION_STATUS_CLOSED;
            } else {
                return static::CONNECTION_STATUS_NONE;
            }
        }

        if (@pg_connection_status($this->handler) === \PGSQL_CONNECTION_OK) {
            return static::CONNECTION_STATUS_GOOD;
        }

        return static::CONNECTION_STATUS_BAD;
    }

    /**
     * getTransactionStatus
     *
     * Return the current transaction status.
     * Return a PHP constant.
     * @see http://fr2.php.net/manual/en/function.pg-transaction-status.php
     *
     * @access public
     * @return int
     */
    public function getTransactionStatus()
    {
        return pg_transaction_status($this->handler);
    }

    /**
     * launch
     *
     * Open a connection on the database.
     *
     * @access private
     * @throws  ConnectionException if connection fails.
     * return  Connection $this
     */
    private function launch()
    {
        $string = $this->configurator->getConnectionString();
        $handler = pg_connect($string, \PGSQL_CONNECT_FORCE_NEW);

        if ($handler === false) {
            throw new ConnectionException(
                sprintf(
                    "Error connecting to the database with parameters '%s'.",
                    preg_replace('/password=[^ ]+/', 'password=xxxx', $string)
                )
            );
        } else {
            $this->handler = $handler;
        }

        if ($this->getConnectionStatus() !== static::CONNECTION_STATUS_GOOD) {
            throw new ConnectionException(
                "Connection open but in a bad state. Read your database server log to learn more about this."
            );
        }

        $this->sendConfiguration();

        return $this;
    }

    /**
     * sendConfiguration
     *
     * Send the configuration settings to the server.
     *
     * @access protected
     * @return Connection $this
     */
    protected function sendConfiguration()
    {
        $sql=[];

        foreach ($this->configurator->getConfiguration() as $setting => $value) {
            $sql[] = sprintf("set %s = %s", pg_escape_identifier($this->handler, $setting), pg_escape_literal($this->handler, $value));
        }

        if (count($sql) > 0) {
            $this->testQuery(
                pg_query($this->getHandler(), join('; ', $sql)),
                sprintf("Error while applying settings '%s'.", join('; ', $sql))
            );
        }

        return $this;
    }

    /**
     * checkConnectionUp
     *
     * Check if the handler is set and throw an Exception if yes.
     *
     * @access private
     * @param  string     $error_message
     * @throws ConnectionException
     * @return Connection $this
     */
    private function checkConnectionUp($error_message = '')
    {
        if ($this->hasHandler()) {
            if ($error_message === '') {
                $error_message = "Connection is already made with the server";
            }

            throw new ConnectionException($error_message);
        }

        return $this;
    }

    /**
     * executeAnonymousQuery
     *
     * Performs a raw SQL query
     *
     * @access public
     * @param  string              $sql The sql statement to execute.
     * @return ResultHandler|array
     */
    public function executeAnonymousQuery($sql)
    {
        $ret = pg_send_query($this->getHandler(), $sql);

        return $this
            ->testQuery($ret, sprintf("Anonymous query failed '%s'.", $sql))
            ->getQueryResult($sql)
            ;
    }

    /**
     * getQueryResult
     *
     * Get an asynchronous query result.
     * The only reason for the SQL query to be passed as parameter is to throw
     * a meaningful exception when an error is raised.
     * Since it is possible to send several queries at a time, This method can
     * return an array of ResultHandler.
     *
     * @access protected
     * @param  string (default null)
     * @throws ConnectionException if no response are available.
     * @throws SqlException if the result is an error.
     * @return ResultHandler|array
     */
    protected function getQueryResult($sql = null)
    {
        $results = [];

        while ($result = pg_get_result($this->getHandler())) {
            $status = pg_result_status($result, \PGSQL_STATUS_LONG);

            if ($status !== \PGSQL_COMMAND_OK && $status !== \PGSQL_TUPLES_OK) {
                throw new SqlException($result, $sql);
            }

            $results[] = new ResultHandler($result);
        }

        if (count($results) === 0) {
            throw new ConnectionException(
                sprintf(
                    "There are no waiting results in connection.\nQuery = '%s'.",
                    $sql
                )
            );
        }

        return count($results) === 1 ? $results[0] : $results;
    }

    /**
     * escapeIdentifier
     *
     * Escape database object's names. This is different from value escaping
     * as objects names are surrounded by double quotes. API function does
     * provide a nice escaping with -- hopefully -- UTF8 support.
     *
     * @see http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html
     * @access public
     * @param  string $string The string to be escaped.
     * @return string the escaped string.
     */
    public function escapeIdentifier($string)
    {
        return \pg_escape_identifier($this->getHandler(), $string);
    }

    /**
     * escapeLiteral
     *
     * Escape a text value.
     *
     * @access public
     * @param  string $string The string to be escaped
     * @return string the escaped string.
     */
    public function escapeLiteral($string)
    {
        return \pg_escape_literal($this->getHandler(), $string);
    }

    /**
     * escapeBytea
     *
     * Wrap pg_escape_bytea
     *
     * @access public
     * @param  string $word
     * @return string
     */
    public function escapeBytea($word)
    {
        return pg_escape_bytea($this->getHandler(), $word);
    }

    /**
     * unescapeBytea
     *
     * Unescape PostgreSQL bytea.
     *
     * @access public
     * @param  string $bytea
     * @return string
     */
    public function unescapeBytea($bytea)
    {
        return pg_unescape_bytea($bytea);
    }

    /**
     * sendQueryWithParameters
     *
     * Execute a asynchronous query with parameters and send the results.
     *
     * @access public
     * @param  string        $query
     * @param  array         $parameters
     * @throws SqlException
     * @return ResultHandler query result wrapper
     */
    public function sendQueryWithParameters($query, array $parameters = [])
    {
        $res = pg_send_query_params(
            $this->getHandler(),
            $query,
            $parameters
        );

        try {
            return $this

                ->testQuery($res, $query)
                ->getQueryResult($query)
                ;
        } catch (SqlException $e) {
            throw $e->setQueryParameters($parameters);
        }
    }

    /**
     * sendPrepareQuery
     *
     * Send a prepare query statement to the server.
     *
     * @access public
     * @param  string     $identifier
     * @param  string     $sql
     * @return Connection $this
     */
    public function sendPrepareQuery($identifier, $sql)
    {
        $this
            ->testQuery(
                pg_send_prepare($this->getHandler(), $identifier, $sql),
                sprintf("Could not send prepare statement «%s».", $sql)
            )
            ->getQueryResult(sprintf("PREPARE ===\n%s\n ===", $sql))
            ;

        return $this;
    }

    /**
     * testQueryAndGetResult
     *
     * Factor method to test query return and summon getQueryResult().
     *
     * @access protected
     * @param  mixed      $query_return
     * @param  string     $sql
     * @throws ConnectionException
     * @return Connection $this
     */
    protected function testQuery($query_return, $sql)
    {
        if ($query_return === false) {
            throw new ConnectionException(sprintf("Query Error : '%s'.", $sql));
        }

        return $this;
    }

    /**
     * sendExecuteQuery
     *
     * Execute a prepared statement.
     * The optional SQL parameter is for debugging purposes only.
     *
     * @access public
     * @param  string        $identifier
     * @param  array         $parameters
     * @param  string        $sql
     * @return ResultHandler
     */
    public function sendExecuteQuery($identifier, array $parameters = [], $sql = '')
    {
        $ret = pg_send_execute($this->getHandler(), $identifier, $parameters);

        return $this

            ->testQuery($ret, sprintf("Prepared query '%s'.", $identifier))
            ->getQueryResult(sprintf("EXECUTE ===\n%s\n ===\nparameters = {%s}", $sql, join(', ', $parameters)))
            ;
    }

    /**
     * getClientEncoding
     *
     * Return the actual client encoding.
     *
     * @access public
     * @return string
     */
    public function getClientEncoding()
    {
        $encoding = pg_client_encoding($this->getHandler());
        $this->testQuery($encoding, 'get client encoding');

        return $encoding;
    }

    /**
     * setClientEncoding
     *
     * Set client encoding.
     *
     * @access public
     * @param  string     $encoding
     * @return Connection $this;
     */
    public function setClientEncoding($encoding)
    {
        $result = pg_set_client_encoding($this->getHandler(), $encoding);

        return $this
            ->testQuery((bool) ($result != -1), sprintf("Set client encoding to '%s'.", $encoding))
            ;
    }

    /**
     * getNotification
     *
     * Get pending notifications. If no notifications are waiting, NULL is
     * returned. Otherwise an associative array containing the optional data
     * and de backend's PID is returned.
     *
     * @access public
     * @return array|null
     */
    public function getNotification()
    {
        $data = pg_get_notify($this->handler, \PGSQL_ASSOC);

        return $data === false ? null : $data;
    }
}


1			<?php
2			/*
3			* This file is part of the Pomm's Foundation package.
4			*
5			* (c) 2014 - 2015 Grégoire HUBERT <[email protected]>
6			*
7			* For the full copyright and license information, please view the LICENSE
8			* file that was distributed with this source code.
9			*/
10			namespace PommProject\Foundation\Session;
11
12			use PommProject\Foundation\Exception\ConnectionException;
13			use PommProject\Foundation\Exception\SqlException;
14
15			/**
16			* Connection
17			*
18			* Manage connection through a resource handler.
19			*
20			* @package Foundation
21			* @copyright 2014 - 2015 Grégoire HUBERT
22			* @author Grégoire HUBERT
23			* @license X11 {@link http://opensource.org/licenses/mit-license.php}
24			*/
25			class Connection
26			{
27			const CONNECTION_STATUS_NONE = 0;
28			const CONNECTION_STATUS_GOOD = 1;
29			const CONNECTION_STATUS_BAD = 2;
30			const CONNECTION_STATUS_CLOSED = 3;
31			const ISOLATION_READ_COMMITTED = "READ COMMITTED"; // default
32			const ISOLATION_REPEATABLE_READ = "REPEATABLE READ"; // from Pg 9.1
33			const ISOLATION_SERIALIZABLE = "SERIALIZABLE"; // changes in 9.1
34			const CONSTRAINTS_DEFERRED = "DEFERRED";
35			const CONSTRAINTS_IMMEDIATE = "IMMEDIATE"; // default
36			const ACCESS_MODE_READ_ONLY = "READ ONLY";
37			const ACCESS_MODE_READ_WRITE = "READ WRITE"; // default
38
39			protected $handler;
40			protected $configurator;
41			private $is_closed = false;
42
43			/**
44			* __construct
45			*
46			* Constructor. Test if the given DSN is valid.
47			*
48			* @access public
49			* @param string $dsn
50			* @param array $configuration
51			* @throws ConnectionException if pgsql extension is missing
52			*/
53			public function __construct($dsn, array $configuration = [])
54			{
55			if (!function_exists('pg_connection_status')) {
56			throw new ConnectionException("`pgsql` PHP extension's functions are unavailable in your environment, please make sure PostgreSQL support is enabled in PHP.");
57			}
58
59			$this->configurator = new ConnectionConfigurator($dsn);
60			$this->configurator->addConfiguration($configuration);
61			}
62
63			/**
64			* close
65			*
66			* Close the connection if any.
67			*
68			* @access public
69			* @return Connection $this
70			*/
71			public function close()
72			{
73			if ($this->hasHandler()) {
74			pg_close($this->handler);
75			$this->handler = null;
76			$this->is_closed = true;
77			}
78
79			return $this;
80			}
81
82			/**
83			* addConfiguration
84			*
85			* Add configuration settings. If settings exist, they are overridden.
86			*
87			* @access public
88			* @param array $configuration
89			* @throws ConnectionException if connection is already up.
90			* @return Connection $this
91			*/
92			public function addConfiguration(array $configuration)
93			{
94			$this
95			->checkConnectionUp("Cannot update configuration once the connection is open.")
96			->configurator->addConfiguration($configuration);
97
98			return $this;
99			}
100
101			/**
102			* addConfigurationSetting
103			*
104			* Add or override a configuration definition.
105			*
106			* @access public
107			* @param string $name
108			* @param string $value
109			* @return Connection
110			*/
111			public function addConfigurationSetting($name, $value)
112			{
113			$this->checkConnectionUp("Cannot set configuration once a connection is made with the server.")
114			->configurator->set($name, $value);
115
116			return $this;
117			}
118
119			/**
120			* getHandler
121			*
122			* Return the connection handler. If no connection are open, it opens one.
123			*
124			* @access protected
125			* @throws ConnectionException if connection is open in a bad state.
126			* @return resource
127			*/
128			protected function getHandler()
129			{
130			switch ($this->getConnectionStatus()) {
131			case static::CONNECTION_STATUS_NONE:
132			$this->launch();
133			// no break
134			case static::CONNECTION_STATUS_GOOD:
135			return $this->handler;
136			case static::CONNECTION_STATUS_BAD:
137			throw new ConnectionException(
138			"Connection problem. Read your server's log about this, I have no more informations."
139			);
140			case static::CONNECTION_STATUS_CLOSED:
141			throw new ConnectionException(
142			"Connection has been closed, no further queries can be sent."
143			);
144			}
145			}
146
147			/**
148			* hasHandler
149			*
150			* Tell if a handler is set or not.
151			*
152			* @access protected
153			* @return bool
154			*/
155			protected function hasHandler()
156			{
157			return (bool) ($this->handler !== null);
158			}
159
160			/**
161			* getConnectionStatus
162			*
163			* Return a connection status.
164			*
165			* @access public
166			* @return int
167			*/
168			public function getConnectionStatus()
169			{
170			if (!$this->hasHandler()) {
171			if ($this->is_closed) {
172			return static::CONNECTION_STATUS_CLOSED;
173			} else {
174			return static::CONNECTION_STATUS_NONE;
175			}
176			}
177
178			if (@pg_connection_status($this->handler) === \PGSQL_CONNECTION_OK) {
179			return static::CONNECTION_STATUS_GOOD;
180			}
181
182			return static::CONNECTION_STATUS_BAD;
183			}
184
185			/**
186			* getTransactionStatus
187			*
188			* Return the current transaction status.
189			* Return a PHP constant.
190			* @see http://fr2.php.net/manual/en/function.pg-transaction-status.php
191			*
192			* @access public
193			* @return int
194			*/
195			public function getTransactionStatus()
196			{
197			return pg_transaction_status($this->handler);
198			}
199
200			/**
201			* launch
202			*
203			* Open a connection on the database.
204			*
205			* @access private
206			* @throws ConnectionException if connection fails.
207			* return Connection $this
208			*/
209			private function launch()
210			{
211			$string = $this->configurator->getConnectionString();
212			$handler = pg_connect($string, \PGSQL_CONNECT_FORCE_NEW);
213
214			if ($handler === false) {
215			throw new ConnectionException(
216			sprintf(
217			"Error connecting to the database with parameters '%s'.",
218			preg_replace('/password=[^ ]+/', 'password=xxxx', $string)
219			)
220			);
221			} else {
222			$this->handler = $handler;
223			}
224
225			if ($this->getConnectionStatus() !== static::CONNECTION_STATUS_GOOD) {
226			throw new ConnectionException(
227			"Connection open but in a bad state. Read your database server log to learn more about this."
228			);
229			}
230
231			$this->sendConfiguration();
232
233			return $this;
234			}
235
236			/**
237			* sendConfiguration
238			*
239			* Send the configuration settings to the server.
240			*
241			* @access protected
242			* @return Connection $this
243			*/
244			protected function sendConfiguration()
245			{
246			$sql=[];
247
248			foreach ($this->configurator->getConfiguration() as $setting => $value) {
249			$sql[] = sprintf("set %s = %s", pg_escape_identifier($this->handler, $setting), pg_escape_literal($this->handler, $value));
250			}
251
252			if (count($sql) > 0) {
253			$this->testQuery(
254			pg_query($this->getHandler(), join('; ', $sql)),
255			sprintf("Error while applying settings '%s'.", join('; ', $sql))
256			);
257			}
258
259			return $this;
260			}
261
262			/**
263			* checkConnectionUp
264			*
265			* Check if the handler is set and throw an Exception if yes.
266			*
267			* @access private
268			* @param string $error_message
269			* @throws ConnectionException
270			* @return Connection $this
271			*/
272			private function checkConnectionUp($error_message = '')
273			{
274			if ($this->hasHandler()) {
275			if ($error_message === '') {
276			$error_message = "Connection is already made with the server";
277			}
278
279			throw new ConnectionException($error_message);
280			}
281
282			return $this;
283			}
284
285			/**
286			* executeAnonymousQuery
287			*
288			* Performs a raw SQL query
289			*
290			* @access public
291			* @param string $sql The sql statement to execute.
292			* @return ResultHandler\|array
293			*/
294			public function executeAnonymousQuery($sql)
295			{
296			$ret = pg_send_query($this->getHandler(), $sql);
297
298			return $this
299			->testQuery($ret, sprintf("Anonymous query failed '%s'.", $sql))
300			->getQueryResult($sql)
301			;
302			}
303
304			/**
305			* getQueryResult
306			*
307			* Get an asynchronous query result.
308			* The only reason for the SQL query to be passed as parameter is to throw
309			* a meaningful exception when an error is raised.
310			* Since it is possible to send several queries at a time, This method can
311			* return an array of ResultHandler.
312			*
313			* @access protected
314			* @param string (default null)
315			* @throws ConnectionException if no response are available.
316			* @throws SqlException if the result is an error.
317			* @return ResultHandler\|array
318			*/
319			protected function getQueryResult($sql = null)
320			{
321			$results = [];
322
323			while ($result = pg_get_result($this->getHandler())) {
324			$status = pg_result_status($result, \PGSQL_STATUS_LONG);
325
326			if ($status !== \PGSQL_COMMAND_OK && $status !== \PGSQL_TUPLES_OK) {
327			throw new SqlException($result, $sql);
328			}
329
330			$results[] = new ResultHandler($result);
331			}
332
333			if (count($results) === 0) {
334			throw new ConnectionException(
335			sprintf(
336			"There are no waiting results in connection.\nQuery = '%s'.",
337			$sql
338			)
339			);
340			}
341
342			return count($results) === 1 ? $results[0] : $results;
343			}
344
345			/**
346			* escapeIdentifier
347			*
348			* Escape database object's names. This is different from value escaping
349			* as objects names are surrounded by double quotes. API function does
350			* provide a nice escaping with -- hopefully -- UTF8 support.
351			*
352			* @see http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html
353			* @access public
354			* @param string $string The string to be escaped.
355			* @return string the escaped string.
356			*/
357			public function escapeIdentifier($string)
358			{
359			return \pg_escape_identifier($this->getHandler(), $string);
360			}
361
362			/**
363			* escapeLiteral
364			*
365			* Escape a text value.
366			*
367			* @access public
368			* @param string $string The string to be escaped
369			* @return string the escaped string.
370			*/
371			public function escapeLiteral($string)
372			{
373			return \pg_escape_literal($this->getHandler(), $string);
374			}
375
376			/**
377			* escapeBytea
378			*
379			* Wrap pg_escape_bytea
380			*
381			* @access public
382			* @param string $word
383			* @return string
384			*/
385			public function escapeBytea($word)
386			{
387			return pg_escape_bytea($this->getHandler(), $word);
388			}
389
390			/**
391			* unescapeBytea
392			*
393			* Unescape PostgreSQL bytea.
394			*
395			* @access public
396			* @param string $bytea
397			* @return string
398			*/
399			public function unescapeBytea($bytea)
400			{
401			return pg_unescape_bytea($bytea);
402			}
403
404			/**
405			* sendQueryWithParameters
406			*
407			* Execute a asynchronous query with parameters and send the results.
408			*
409			* @access public
410			* @param string $query
411			* @param array $parameters
412			* @throws SqlException
413			* @return ResultHandler query result wrapper
414			*/
415			public function sendQueryWithParameters($query, array $parameters = [])
416			{
417			$res = pg_send_query_params(
418			$this->getHandler(),
419			$query,
420			$parameters
421			);
422
423			try {
424			return $this
			0 ignored issues – show Bug Compatibility introduced 2016-02-17 16:00 UTC by Report Bug Copy Issue Report The expression `$this->testQuery($res, $...getQueryResult($query);` of type `PommProject\Foundation\Session\ResultHandler\|array` adds the type `array` to the return on line 424 which is incompatible with the return type documented by `PommProject\Foundation\S...sendQueryWithParameters` of type `PommProject\Foundation\Session\ResultHandler`. Loading history...
425			->testQuery($res, $query)
426			->getQueryResult($query)
427			;
428			} catch (SqlException $e) {
429			throw $e->setQueryParameters($parameters);
430			}
431			}
432
433			/**
434			* sendPrepareQuery
435			*
436			* Send a prepare query statement to the server.
437			*
438			* @access public
439			* @param string $identifier
440			* @param string $sql
441			* @return Connection $this
442			*/
443			public function sendPrepareQuery($identifier, $sql)
444			{
445			$this
446			->testQuery(
447			pg_send_prepare($this->getHandler(), $identifier, $sql),
448			sprintf("Could not send prepare statement «%s».", $sql)
449			)
450			->getQueryResult(sprintf("PREPARE ===\n%s\n ===", $sql))
451			;
452
453			return $this;
454			}
455
456			/**
457			* testQueryAndGetResult
458			*
459			* Factor method to test query return and summon getQueryResult().
460			*
461			* @access protected
462			* @param mixed $query_return
463			* @param string $sql
464			* @throws ConnectionException
465			* @return Connection $this
466			*/
467			protected function testQuery($query_return, $sql)
468			{
469			if ($query_return === false) {
470			throw new ConnectionException(sprintf("Query Error : '%s'.", $sql));
471			}
472
473			return $this;
474			}
475
476			/**
477			* sendExecuteQuery
478			*
479			* Execute a prepared statement.
480			* The optional SQL parameter is for debugging purposes only.
481			*
482			* @access public
483			* @param string $identifier
484			* @param array $parameters
485			* @param string $sql
486			* @return ResultHandler
487			*/
488			public function sendExecuteQuery($identifier, array $parameters = [], $sql = '')
489			{
490			$ret = pg_send_execute($this->getHandler(), $identifier, $parameters);
491
492			return $this
			0 ignored issues – show Bug Compatibility introduced 2016-02-17 16:00 UTC by Report Bug Copy Issue Report The expression `$this->testQuery($ret, s...n(', ', $parameters)));` of type `PommProject\Foundation\Session\ResultHandler\|array` adds the type `array` to the return on line 492 which is incompatible with the return type documented by `PommProject\Foundation\S...ction::sendExecuteQuery` of type `PommProject\Foundation\Session\ResultHandler`. Loading history...
493			->testQuery($ret, sprintf("Prepared query '%s'.", $identifier))
494			->getQueryResult(sprintf("EXECUTE ===\n%s\n ===\nparameters = {%s}", $sql, join(', ', $parameters)))
495			;
496			}
497
498			/**
499			* getClientEncoding
500			*
501			* Return the actual client encoding.
502			*
503			* @access public
504			* @return string
505			*/
506			public function getClientEncoding()
507			{
508			$encoding = pg_client_encoding($this->getHandler());
509			$this->testQuery($encoding, 'get client encoding');
510
511			return $encoding;
512			}
513
514			/**
515			* setClientEncoding
516			*
517			* Set client encoding.
518			*
519			* @access public
520			* @param string $encoding
521			* @return Connection $this;
522			*/
523			public function setClientEncoding($encoding)
524			{
525			$result = pg_set_client_encoding($this->getHandler(), $encoding);
526
527			return $this
528			->testQuery((bool) ($result != -1), sprintf("Set client encoding to '%s'.", $encoding))
529			;
530			}
531
532			/**
533			* getNotification
534			*
535			* Get pending notifications. If no notifications are waiting, NULL is
536			* returned. Otherwise an associative array containing the optional data
537			* and de backend's PID is returned.
538			*
539			* @access public
540			* @return array\|null
541			*/
542			public function getNotification()
543			{
544			$data = pg_get_notify($this->handler, \PGSQL_ASSOC);
545
546			return $data === false ? null : $data;
547			}
548			}
549

pomm-project / Foundation

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Connection::hasHandler() A

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