DB::connection() - Code Metrics - KantoWatanabe/Kore - Measure and Improve Code Quality continuously with Scrutinizer

DB::connection() A
last analyzed 2021-05-22 02:51 UTC

↳ Parent: DB

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
eloc	4
nc	2
nop	1
dl	0
loc	7
rs	10
c	0
b	0
f	0

<?php
/**
 * Kore : Simple And Minimal Framework
 *
 */

namespace Kore;

use Kore\Config;
use Kore\Log;
use PDO;

/**
 * DB class
 *
 * Managing database operations
 */
class DB
{
    /**
     * PDO instance
     *
     * @var PDO
     */
    protected $pdo;

    /**
     * __construct method
     *
     * @param string $dbconfig DB configuration key
     * @return void
     */
    final private function __construct($dbconfig)
    {
        $this->connect($dbconfig);
    }

    /**
     * __clone method
     *
     * @return void
     * @throws \Exception Thrown in when __clone is called
     */
    final public function __clone()
    {
        throw new \Exception('__clone is not allowed!');
    }

    /**
     * Get DB instance corresponding to the DB configuration key
     *
     * @param string $dbconfig DB configuration key
     * @return self DB instance
     */
    public static function connection($dbconfig='database')
    {
        static $instances = array();
        if (empty($instances[$dbconfig])) {
            $instances[$dbconfig] = new static($dbconfig);
        }
        return $instances[$dbconfig];
    }

    /**
     * Access DB
     *
     * @param string $dbconfig DB configuration key
     * @return void
     * @throws \Exception Thrown in when the DB configuration does not exist
     * @throws \PDOException Thrown when DB access fails
     */
    protected function connect($dbconfig)
    {
        $config = Config::get($dbconfig);
        if ($config === null) {
            throw new \Exception("Database config $dbconfig is not found!");
        }
        $host = $config['host'];
        $db = $config['db'];
        $port = $config['port'];
        $dsn = sprintf('mysql:host=%s;port=%s;dbname=%s;charset=utf8', $host, $port, $db);

        $user = $config['user'];
        $pass = $config['pass'];

        $options = array(
            PDO::ATTR_EMULATE_PREPARES => false,
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        );

        $this->pdo = new PDO($dsn, $user, $pass, $options);
    }

    /**
     * Get PDO instance
     *
     * @return PDO PDO instance
     */
    public function getPdo()
    {
        return $this->pdo;
    }

    /**
     * Run the select statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return array<mixed> query results
     */
    public function select($query, $params = array())
    {
        $stm = $this->execute($query, $params);

        $result = $stm->fetchAll();
        return $result !== false ? $result : array();
    }

    /**
     * Run the select statement, get only one record
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return array<mixed> query results
     */
    public function selectFirst($query, $params = array())
    {
        $stm = $this->execute($query, $params);
        
        $result = $stm->fetch();
        return $result !== false ? $result: array();
    }

    /**
     * Run the select count statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return mixed query results
     */
    public function count($query, $params = array())
    {
        $stm = $this->execute($query, $params);

        $result = $stm->fetchColumn();
        return $result !== false ? $result : 0;
    }

    /**
     * Run the insert statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return string last insert ID
     */
    public function insert($query, $params = array())
    {
        $this->execute($query, $params);

        return $this->pdo->lastInsertId();
    }

    /**
     * Run the update statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return int number of updated records
     */
    public function update($query, $params = array())
    {
        $stm = $this->execute($query, $params);

        return $stm->rowCount();
    }

    /**
     * Run the delete statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return int number of deleted records
     */
    public function delete($query, $params = array())
    {
        $stm = $this->execute($query, $params);

        return $stm->rowCount();
    }

    /**
     * Run in a transaction
     *
     * Rollback if an exception is raised in the callback.
     * @param callable $callback callback processing
     * @return void
     * @throws \Exception
     */
    public function transaction($callback)
    {
        try {
            $this->beginTransaction();
            $callback();
            $this->commit();
        } catch (\Exception $e) {
            $this->rollback();
            throw $e;
        }
    }

    /**
     * Begin transaction
     *
     * @return void
     */
    public function beginTransaction()
    {
        $this->pdo->beginTransaction();
    }

    /**
     * Commit
     *
     * @return void
     */
    public function commit()
    {
        $this->pdo->commit();
    }

    /**
     * Rollback
     *
     * @return void
     */
    public function rollback()
    {
        $this->pdo->rollback();
    }

    /**
     * Get the IN clause
     *
     * @param string $marker parameter marker
     * @param array<mixed> $values value specified in the IN clause
     * @return array<mixed> IN clause information
     *                      array(
     *                          'IN (:MARKER_0, :MARKER_1, :MARKER_2)',
     *                          array(
     *                              'MARKER_0' => 'value',
     *                              'MARKER_1' => 'value',
     *                              'MARKER_2' => 'value'
     *                          )
     *                      )
     */
    public static function getInClause($marker, $values)
    {
        $inClause = 'IN (';
        $params = array();
        foreach ($values as $i => $value) {
            if ($i !== 0) {
                $inClause .= ', ';
            }
            $key = $marker.'_'.$i;
            $inClause .= ':'.$key;
            $params[$key] = $value;
        }
        $inClause .= ')';
        return array($inClause, $params);
    }

    /**
     * Run the query statement
     *
     * @param string $query SQL query
     * @param array<mixed> $params SQL query parameters
     * @return \PDOStatement \PDOStatement object
     */
    public function execute($query, $params = array())
    {
        $stm = $this->pdo->prepare($query);

        $keys = array();
        $values = array();
        foreach ($params as $key => $value) {
            $parameter = ":{$key}";
            $keys[] = $parameter;
            $values[] = $this->debugValue($value);
            $stm->bindValue($parameter, $value, $this->dataType($value));
        }

        $start = microtime(true);
        $stm->execute();
        $end = microtime(true);
        /** @phpstan-ignore-next-line */
        Log::debug(sprintf('%f - %s', $end-$start, str_replace($keys, $values, preg_replace('/[\n\t\s]+/', ' ', $query))));
        return $stm;
    }

    /**
     * Get the debug value from the variable
     *
     * @param mixed $value variable
     * @return mixed debug value
     */
    private function debugValue($value)
    {
        switch (gettype($value)) {
            case 'string':
                $debugValue = "'$value'";
                break;
            case 'boolean':
                $debugValue = $value ? 'true' : 'false';
                break;
            case 'NULL':
                $debugValue = 'NULL';
                break;
            default:
                $debugValue = $value;
        
        }
        return $debugValue;
    }

    /**
     * Get the data_type from the variable
     *
     * @param mixed $value variable
     * @return int data_type
     */
    private function dataType($value)
    {
        switch (gettype($value)) {
            case 'boolean':
                $datatype = PDO::PARAM_BOOL;
                break;
            case 'integer':
                $datatype = PDO::PARAM_INT;
                break;
            case 'string':
                $datatype = PDO::PARAM_STR;
                break;
            case 'NULL':
                $datatype = PDO::PARAM_NULL;
                break;
            default:
                $datatype = PDO::PARAM_STR;
        }
        return $datatype;
    }
}


1			<?php
2			/**
3			* Kore : Simple And Minimal Framework
4			*
5			*/
6
7			namespace Kore;
8
9			use Kore\Config;
10			use Kore\Log;
11			use PDO;
12
13			/**
14			* DB class
15			*
16			* Managing database operations
17			*/
18			class DB
19			{
20			/**
21			* PDO instance
22			*
23			* @var PDO
24			*/
25			protected $pdo;
26
27			/**
28			* __construct method
29			*
30			* @param string $dbconfig DB configuration key
31			* @return void
32			*/
33			final private function __construct($dbconfig)
34			{
35			$this->connect($dbconfig);
36			}
37
38			/**
39			* __clone method
40			*
41			* @return void
42			* @throws \Exception Thrown in when __clone is called
43			*/
44			final public function __clone()
45			{
46			throw new \Exception('__clone is not allowed!');
47			}
48
49			/**
50			* Get DB instance corresponding to the DB configuration key
51			*
52			* @param string $dbconfig DB configuration key
53			* @return self DB instance
54			*/
55			public static function connection($dbconfig='database')
56			{
57			static $instances = array();
58			if (empty($instances[$dbconfig])) {
59			$instances[$dbconfig] = new static($dbconfig);
60			}
61			return $instances[$dbconfig];
62			}
63
64			/**
65			* Access DB
66			*
67			* @param string $dbconfig DB configuration key
68			* @return void
69			* @throws \Exception Thrown in when the DB configuration does not exist
70			* @throws \PDOException Thrown when DB access fails
71			*/
72			protected function connect($dbconfig)
73			{
74			$config = Config::get($dbconfig);
75			if ($config === null) {
76			throw new \Exception("Database config $dbconfig is not found!");
77			}
78			$host = $config['host'];
79			$db = $config['db'];
80			$port = $config['port'];
81			$dsn = sprintf('mysql:host=%s;port=%s;dbname=%s;charset=utf8', $host, $port, $db);
82
83			$user = $config['user'];
84			$pass = $config['pass'];
85
86			$options = array(
87			PDO::ATTR_EMULATE_PREPARES => false,
88			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
89			PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
90			);
91
92			$this->pdo = new PDO($dsn, $user, $pass, $options);
93			}
94
95			/**
96			* Get PDO instance
97			*
98			* @return PDO PDO instance
99			*/
100			public function getPdo()
101			{
102			return $this->pdo;
103			}
104
105			/**
106			* Run the select statement
107			*
108			* @param string $query SQL query
109			* @param array<mixed> $params SQL query parameters
110			* @return array<mixed> query results
111			*/
112			public function select($query, $params = array())
113			{
114			$stm = $this->execute($query, $params);
115
116			$result = $stm->fetchAll();
117			return $result !== false ? $result : array();
118			}
119
120			/**
121			* Run the select statement, get only one record
122			*
123			* @param string $query SQL query
124			* @param array<mixed> $params SQL query parameters
125			* @return array<mixed> query results
126			*/
127			public function selectFirst($query, $params = array())
128			{
129			$stm = $this->execute($query, $params);
130
131			$result = $stm->fetch();
132			return $result !== false ? $result: array();
133			}
134
135			/**
136			* Run the select count statement
137			*
138			* @param string $query SQL query
139			* @param array<mixed> $params SQL query parameters
140			* @return mixed query results
141			*/
142			public function count($query, $params = array())
143			{
144			$stm = $this->execute($query, $params);
145
146			$result = $stm->fetchColumn();
147			return $result !== false ? $result : 0;
148			}
149
150			/**
151			* Run the insert statement
152			*
153			* @param string $query SQL query
154			* @param array<mixed> $params SQL query parameters
155			* @return string last insert ID
156			*/
157			public function insert($query, $params = array())
158			{
159			$this->execute($query, $params);
160
161			return $this->pdo->lastInsertId();
162			}
163
164			/**
165			* Run the update statement
166			*
167			* @param string $query SQL query
168			* @param array<mixed> $params SQL query parameters
169			* @return int number of updated records
170			*/
171			public function update($query, $params = array())
172			{
173			$stm = $this->execute($query, $params);
174
175			return $stm->rowCount();
176			}
177
178			/**
179			* Run the delete statement
180			*
181			* @param string $query SQL query
182			* @param array<mixed> $params SQL query parameters
183			* @return int number of deleted records
184			*/
185			public function delete($query, $params = array())
186			{
187			$stm = $this->execute($query, $params);
188
189			return $stm->rowCount();
190			}
191
192			/**
193			* Run in a transaction
194			*
195			* Rollback if an exception is raised in the callback.
196			* @param callable $callback callback processing
197			* @return void
198			* @throws \Exception
199			*/
200			public function transaction($callback)
201			{
202			try {
203			$this->beginTransaction();
204			$callback();
205			$this->commit();
206			} catch (\Exception $e) {
207			$this->rollback();
208			throw $e;
209			}
210			}
211
212			/**
213			* Begin transaction
214			*
215			* @return void
216			*/
217			public function beginTransaction()
218			{
219			$this->pdo->beginTransaction();
220			}
221
222			/**
223			* Commit
224			*
225			* @return void
226			*/
227			public function commit()
228			{
229			$this->pdo->commit();
230			}
231
232			/**
233			* Rollback
234			*
235			* @return void
236			*/
237			public function rollback()
238			{
239			$this->pdo->rollback();
240			}
241
242			/**
243			* Get the IN clause
244			*
245			* @param string $marker parameter marker
246			* @param array<mixed> $values value specified in the IN clause
247			* @return array<mixed> IN clause information
248			* array(
249			* 'IN (:MARKER_0, :MARKER_1, :MARKER_2)',
250			* array(
251			* 'MARKER_0' => 'value',
252			* 'MARKER_1' => 'value',
253			* 'MARKER_2' => 'value'
254			* )
255			* )
256			*/
257			public static function getInClause($marker, $values)
258			{
259			$inClause = 'IN (';
260			$params = array();
261			foreach ($values as $i => $value) {
262			if ($i !== 0) {
263			$inClause .= ', ';
264			}
265			$key = $marker.'_'.$i;
266			$inClause .= ':'.$key;
267			$params[$key] = $value;
268			}
269			$inClause .= ')';
270			return array($inClause, $params);
271			}
272
273			/**
274			* Run the query statement
275			*
276			* @param string $query SQL query
277			* @param array<mixed> $params SQL query parameters
278			* @return \PDOStatement \PDOStatement object
279			*/
280			public function execute($query, $params = array())
281			{
282			$stm = $this->pdo->prepare($query);
283
284			$keys = array();
285			$values = array();
286			foreach ($params as $key => $value) {
287			$parameter = ":{$key}";
288			$keys[] = $parameter;
289			$values[] = $this->debugValue($value);
290			$stm->bindValue($parameter, $value, $this->dataType($value));
291			}
292
293			$start = microtime(true);
294			$stm->execute();
295			$end = microtime(true);
296			/** @phpstan-ignore-next-line */
297			Log::debug(sprintf('%f - %s', $end-$start, str_replace($keys, $values, preg_replace('/[\n\t\s]+/', ' ', $query))));
298			return $stm;
299			}
300
301			/**
302			* Get the debug value from the variable
303			*
304			* @param mixed $value variable
305			* @return mixed debug value
306			*/
307			private function debugValue($value)
308			{
309			switch (gettype($value)) {
310			case 'string':
311			$debugValue = "'$value'";
312			break;
313			case 'boolean':
314			$debugValue = $value ? 'true' : 'false';
315			break;
316			case 'NULL':
317			$debugValue = 'NULL';
318			break;
319			default:
320			$debugValue = $value;
321
322			}
323			return $debugValue;
324			}
325
326			/**
327			* Get the data_type from the variable
328			*
329			* @param mixed $value variable
330			* @return int data_type
331			*/
332			private function dataType($value)
333			{
334			switch (gettype($value)) {
335			case 'boolean':
336			$datatype = PDO::PARAM_BOOL;
337			break;
338			case 'integer':
339			$datatype = PDO::PARAM_INT;
340			break;
341			case 'string':
342			$datatype = PDO::PARAM_STR;
343			break;
344			case 'NULL':
345			$datatype = PDO::PARAM_NULL;
346			break;
347			default:
348			$datatype = PDO::PARAM_STR;
349			}
350			return $datatype;
351			}
352			}
353

KantoWatanabe / Kore

DB::connection() A last analyzed 2021-05-22 02:51 UTC

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DB::connection() A
last analyzed 2021-05-22 02:51 UTC