Database::__construct() - Code Metrics - Inspection of "Add ActiveRecordModel::findAllWhere()." - canax/database - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 34e8c2...287087 )

by Mikael

created 2017-10-09 07:43 UTC

Database::__construct() A

↳ Parent: Database

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	1
crap	1

<?php

namespace Anax\Database;

use \Anax\Database\Exception\Exception;

/**
 * Database wrapper, provides a database API on top of PHP PDO for
 * enhancing the API and dealing with error reporting and tracking.
 */
class Database
{
    /**
     * @var array        $options used when creating the PDO object
     * @var PDO          $pdo     the PDO object
     * @var PDOStatement $stmt    the latest PDOStatement used
     */
    protected $options;
    private $pdo = null;
    private $stmt = null;



    /**
     * Constructor creating a PDO object connecting to a choosen database.
     *
     * @param array $options containing details for connecting to the database.
     */
    public function __construct($options = [])
    {
        $this->setOptions($options);
    }



    /**
     * Set options and connection details.
     *
     * @param array $options containing details for connecting to the database.
     *
     * @return void
     */
    public function setOptions($options = [])
    {
        $default = [
            'dsn'             => null,
            'username'        => null,
            'password'        => null,
            'driver_options'  => null,
            'table_prefix'    => null,
            'fetch_mode'      => \PDO::FETCH_OBJ,
            'session_key'     => 'Anax\Database',
            'verbose'         => null,
            'debug_connect'   => false,
        ];
        $this->options = array_merge($default, $options);
    }



    /**
     * Set a single option.
     *
     * @param string $option which to set.
     * @param mixed  $value  to set.
     *
     * @return self
     */
    public function setOption($option, $value)
    {
        $this->options[$option] = $value;
        return $this;
    }



    /**
     * Connect to the database, allow being called multiple times
     * but ignore when connection is already made.
     *
     * @return self
     *
     * @throws \Anax\Database\Exception
     */
    public function connect()
    {
        if ($this->pdo) {
            return $this;
        }

        if (!isset($this->options['dsn'])) {
            throw new Exception("You can not connect, missing dsn.");
        }

        try {
            $this->pdo = new \PDO(
                $this->options['dsn'],
                $this->options['username'],
                $this->options['password'],
                $this->options['driver_options']
            );

            $this->pdo->setAttribute(\PDO::ATTR_DEFAULT_FETCH_MODE, $this->options['fetch_mode']);
            $this->pdo->setAttribute(\PDO::ATTR_EMULATE_PREPARES, false);
        } catch (\PDOException $e) {
            if ($this->options['debug_connect']) {
                throw $e;
            }
            throw new Exception("Could not connect to database, hiding connection details.");
        }

        return $this;
    }



    /**
     * Support arrays in params, extract array items and add to $params
     * and insert ? for each entry in the array.
     *
     * @param string $query  as the query to prepare.
     * @param array  $params the parameters that may contain arrays.
     *
     * @return array with query and params.
     */
    private function expandParamArray($query, $params)
    {
        $param = [];
        $offset = -1;

        foreach ($params as $val) {
            $offset = strpos($query, '?', $offset + 1);

            if (is_array($val)) {
                $nrOfItems = count($val);

                if ($nrOfItems) {
                    $query = substr($query, 0, $offset)
                        . str_repeat('?,', $nrOfItems  - 1)
                        . '?'
                        . substr($query, $offset + 1);
                    $param = array_merge($param, $val);
                } else {
                    $param[] = null;
                }
            } else {
                $param[] = $val;
            }
        }

        return [$query, $param];
    }



    /**
     * Execute a select-query with arguments and return the resultset.
     *
     * @param string $query  the SQL statement
     * @param array  $params the params array
     *
     * @return array with resultset
     */
    public function executeFetchAll($query, $params = [])
    {
        $this->execute($query, $params);
        return $this->stmt->fetchAll();
    }



    /**
     * Execute a select-query with arguments and return the first row
     * in the resultset.
     *
     * @param string $query  the SQL statement
     * @param array  $params the params array
     *
     * @return array with resultset
     */
    public function executeFetch($query, $params = [])
    {
        $this->execute($query, $params);
        return $this->stmt->fetch();
    }



    /**
     * Execute a select-query with arguments and insert the results into
     * a new object of the class.
     *
     * @param string $query  the SQL statement
     * @param array  $params the params array
     * @param string $class  the class to create an object of and insert into
     *
     * @return array with resultset
     */
    public function executeFetchClass($query, $params, $class)
    {
        $this->execute($query, $params);
        $this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
        return $this->stmt->fetch();
    }



    /**
     * Execute a select-query with arguments and insert the results into
     * an existing object.
     *
     * @param string $query  the SQL statement
     * @param array  $params the params array
/**
 * @param array $germany
 * @param array $ireland
 */
function finale($germany, $island) {
    return "2:1";
}
     * @param string $object the existing object to insert into
     *
     * @return array with resultset
     */
    public function executeFetchInto($query, $param, $object = null)
    {
        if (!$object) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            $object = $param;
            $param = [];
        }
        $this->execute($query, $param);
        $this->stmt->setFetchMode(\PDO::FETCH_INTO, $object);
        return $this->stmt->fetch();
    }



    /**
     * Fetch all resultset.
     *
     * @return array with resultset.
     */
    public function fetchAll()
    {
        return $this->stmt->fetchAll();
    }



    /**
     * Fetch one resultset.
     *
     * @return array with resultset.
     */
    public function fetch()
    {
        return $this->stmt->fetch();
    }



    /**
     * Fetch one resultset as a new object from this class.
     *
     * @param object $class which type of object to instantiate.
     *
     * @return array with resultset.
     */
    public function fetchClass($class)
    {
        $this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
        return $this->stmt->fetch();
    }



    /**
     * Fetch full resultset as new objects from this class.
     *
     * @param object $class which type of object to instantiate.
     *
     * @return array with resultset.
     */
    public function fetchAllClass($class)
    {
        $this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
        return $this->stmt->fetchAll();
    }



    /**
     * Fetch one resultset into an object.
     *
     * @param object $object to insert values into.
     *
     * @return array with resultset.
     */
    public function fetchInto($object)
    {
        $this->stmt->setFetchMode(\PDO::FETCH_INTO, $object);
        return $this->stmt->fetch();
    }



    /**
     * Execute a SQL-query and ignore the resultset.
     *
     * @param string $query  the SQL statement
     * @param array  $params the params array
     *
     * @return self
     *
     * @throws Exception when failing to prepare question.
     */
    public function execute($query, $params = [])
    {
        list($query, $params) = $this->expandParamArray($query, $params);

        $this->stmt = $this->pdo->prepare($query);
        if (!$this->stmt) {
            $this->pdoException($query, $params);
        }

        if ($this->options["verbose"]) {
            echo $query . "\n";
            print_r($params);
        }

        $res = $this->stmt->execute($params);
        if (!$res) {
            $this->statementException($query, $params);
        }

        return $this;
    }



    /**
     * Throw exception using detailed message.
     *
     * @param string       $msg     detailed error message from PDO
     * @param string       $query   query to execute
     * @param array        $param   to match ? in statement
     *
     * @return void
     *
     * @throws \Anax\Database\Exception
     */
    protected function createException($msg, $query, $param)
    {
        throw new Exception(
            $msg
            . "<br><br>SQL ("
            . substr_count($query, "?")
            . " params):<br><pre>$query</pre><br>PARAMS ("
            . count($param)
            . "):<br><pre>"
            . implode($param, "\n")
            . "</pre>"
            . ((count(array_filter(array_keys($param), 'is_string')) > 0)
                ? "WARNING your params array has keys, should only have values."
                : null)
        );
    }



    /**
     * Throw exception when pdo failed using detailed message.
     *
     * @param string       $query   query to execute
     * @param array        $param   to match ? in statement
     *
     * @return void
     *
     * @throws \Anax\Database\Exception
     */
    protected function pdoException($query, $param)
    {
        $this->createException($this->pdo->errorInfo()[2], $query, $param);
    }



    /**
     * Throw exception when statement failed using detailed message.
     *
     * @param string       $query   query to execute
     * @param array        $param   to match ? in statement
     *
     * @return void
     *
     * @throws \Anax\Database\Exception
     */
    protected function statementException($query, $param)
    {
        $this->createException($this->stmt->errorInfo()[2], $query, $param);
    }



    /**
     * Return last insert id from autoincremented key on INSERT.
     *
     * @return integer as last insert id.
     */
    public function lastInsertId()
    {
        return $this->pdo->lastInsertId();
    }



    /**
    * Return rows affected of last INSERT, UPDATE, DELETE
    *
    * @return integer as rows affected on last statement
    */
    public function rowCount()
    {
        return $this->stmt->rowCount();
    }



    /**
     * Fetch one resultset as an object from this class.
     * OBSOLETE replaced by fetchClass
     *
     * @param object $class which type of object to instantiate.
     *
     * @return array with resultset.
     */
    public function fetchObject($class)
    {
        return $this->stmt->fetchObject($class);
    }



    /**
     * Fetch one resultset. OBSOLETE replace by fetch()
     *
     * @return array with resultset.
     */
    public function fetchOne()
    {
        return $this->stmt->fetch();
    }
}


1		<?php
2
3		namespace Anax\Database;
4
5		use \Anax\Database\Exception\Exception;
6
7		/**
8		* Database wrapper, provides a database API on top of PHP PDO for
9		* enhancing the API and dealing with error reporting and tracking.
10		*/
11		class Database
12		{
13		/**
14		* @var array $options used when creating the PDO object
15		* @var PDO $pdo the PDO object
16		* @var PDOStatement $stmt the latest PDOStatement used
17		*/
18		protected $options;
19		private $pdo = null;
20		private $stmt = null;
21
22
23
24		/**
25		* Constructor creating a PDO object connecting to a choosen database.
26		*
27		* @param array $options containing details for connecting to the database.
28		*/
29	8	public function __construct($options = [])
30		{
31	8	$this->setOptions($options);
32	8	}
33
34
35
36		/**
37		* Set options and connection details.
38		*
39		* @param array $options containing details for connecting to the database.
40		*
41		* @return void
42		*/
43	9	public function setOptions($options = [])
44		{
45		$default = [
46	9	'dsn' => null,
47	9	'username' => null,
48	9	'password' => null,
49	9	'driver_options' => null,
50	9	'table_prefix' => null,
51	9	'fetch_mode' => \PDO::FETCH_OBJ,
52	9	'session_key' => 'Anax\Database',
53	9	'verbose' => null,
54	9	'debug_connect' => false,
55	9	];
56	9	$this->options = array_merge($default, $options);
57	9	}
58
59
60
61		/**
62		* Set a single option.
63		*
64		* @param string $option which to set.
65		* @param mixed $value to set.
66		*
67		* @return self
68		*/
69		public function setOption($option, $value)
70		{
71		$this->options[$option] = $value;
72		return $this;
73		}
74
75
76
77		/**
78		* Connect to the database, allow being called multiple times
79		* but ignore when connection is already made.
80		*
81		* @return self
82		*
83		* @throws \Anax\Database\Exception
84		*/
85	11	public function connect()
86		{
87	11	if ($this->pdo) {
88	4	return $this;
89		}
90
91	8	if (!isset($this->options['dsn'])) {
92	1	throw new Exception("You can not connect, missing dsn.");
93		}
94
95		try {
96	8	$this->pdo = new \PDO(
97	8	$this->options['dsn'],
98	8	$this->options['username'],
99	8	$this->options['password'],
100	8	$this->options['driver_options']
101	8	);
102
103	8	$this->pdo->setAttribute(\PDO::ATTR_DEFAULT_FETCH_MODE, $this->options['fetch_mode']);
104	8	$this->pdo->setAttribute(\PDO::ATTR_EMULATE_PREPARES, false);
105	8	} catch (\PDOException $e) {
106	1	if ($this->options['debug_connect']) {
107	1	throw $e;
108		}
109		throw new Exception("Could not connect to database, hiding connection details.");
110		}
111
112	8	return $this;
113		}
114
115
116
117		/**
118		* Support arrays in params, extract array items and add to $params
119		* and insert ? for each entry in the array.
120		*
121		* @param string $query as the query to prepare.
122		* @param array $params the parameters that may contain arrays.
123		*
124		* @return array with query and params.
125		*/
126	9	private function expandParamArray($query, $params)
127		{
128	9	$param = [];
129	9	$offset = -1;
130
131	9	foreach ($params as $val) {
132	5	$offset = strpos($query, '?', $offset + 1);
133
134	5	if (is_array($val)) {
135		$nrOfItems = count($val);
136
137		if ($nrOfItems) {
138		$query = substr($query, 0, $offset)
139		. str_repeat('?,', $nrOfItems - 1)
140		. '?'
141		. substr($query, $offset + 1);
142		$param = array_merge($param, $val);
143		} else {
144		$param[] = null;
145		}
146		} else {
147	5	$param[] = $val;
148		}
149	9	}
150
151	9	return [$query, $param];
152		}
153
154
155
156		/**
157		* Execute a select-query with arguments and return the resultset.
158		*
159		* @param string $query the SQL statement
160		* @param array $params the params array
161		*
162		* @return array with resultset
163		*/
164		public function executeFetchAll($query, $params = [])
165		{
166		$this->execute($query, $params);
167		return $this->stmt->fetchAll();
168		}
169
170
171
172		/**
173		* Execute a select-query with arguments and return the first row
174		* in the resultset.
175		*
176		* @param string $query the SQL statement
177		* @param array $params the params array
178		*
179		* @return array with resultset
180		*/
181	1	public function executeFetch($query, $params = [])
182		{
183	1	$this->execute($query, $params);
184	1	return $this->stmt->fetch();
185		}
186
187
188
189		/**
190		* Execute a select-query with arguments and insert the results into
191		* a new object of the class.
192		*
193		* @param string $query the SQL statement
194		* @param array $params the params array
195		* @param string $class the class to create an object of and insert into
196		*
197		* @return array with resultset
198		*/
199		public function executeFetchClass($query, $params, $class)
200		{
201		$this->execute($query, $params);
202		$this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
203		return $this->stmt->fetch();
204		}
205
206
207
208		/**
209		* Execute a select-query with arguments and insert the results into
210		* an existing object.
211		*
212		* @param string $query the SQL statement
213		* @param array $params the params array
		0 ignored issues – show Documentation introduced 2017-04-11 16:35 UTC by Report Bug Copy Issue Report There is no parameter named `$params`. Did you maybe mean `$param`? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit. Consider the following example. The parameter `$ireland` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $ireland */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was changed, but the annotation was not. Loading history...
214		* @param string $object the existing object to insert into
215		*
216		* @return array with resultset
217		*/
218		public function executeFetchInto($query, $param, $object = null)
219		{
220		if (!$object) {
		0 ignored issues – show Bug Best Practice introduced 2017-04-11 16:35 UTC by Report Bug Copy Issue Report The expression `$object` of type `string\|null` is loosely compared to `false`; this is ambiguous if the string can be empty. You might want to explicitly use `=== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
221		$object = $param;
222		$param = [];
223		}
224		$this->execute($query, $param);
225		$this->stmt->setFetchMode(\PDO::FETCH_INTO, $object);
226		return $this->stmt->fetch();
227		}
228
229
230
231		/**
232		* Fetch all resultset.
233		*
234		* @return array with resultset.
235		*/
236		public function fetchAll()
237		{
238		return $this->stmt->fetchAll();
239		}
240
241
242
243		/**
244		* Fetch one resultset.
245		*
246		* @return array with resultset.
247		*/
248		public function fetch()
249		{
250		return $this->stmt->fetch();
251		}
252
253
254
255		/**
256		* Fetch one resultset as a new object from this class.
257		*
258		* @param object $class which type of object to instantiate.
259		*
260		* @return array with resultset.
261		*/
262		public function fetchClass($class)
263		{
264		$this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
265		return $this->stmt->fetch();
266		}
267
268
269
270		/**
271		* Fetch full resultset as new objects from this class.
272		*
273		* @param object $class which type of object to instantiate.
274		*
275		* @return array with resultset.
276		*/
277	2	public function fetchAllClass($class)
278		{
279	2	$this->stmt->setFetchMode(\PDO::FETCH_CLASS, $class);
280	2	return $this->stmt->fetchAll();
281		}
282
283
284
285		/**
286		* Fetch one resultset into an object.
287		*
288		* @param object $object to insert values into.
289		*
290		* @return array with resultset.
291		*/
292	1	public function fetchInto($object)
293		{
294	1	$this->stmt->setFetchMode(\PDO::FETCH_INTO, $object);
295	1	return $this->stmt->fetch();
296		}
297
298
299
300		/**
301		* Execute a SQL-query and ignore the resultset.
302		*
303		* @param string $query the SQL statement
304		* @param array $params the params array
305		*
306		* @return self
307		*
308		* @throws Exception when failing to prepare question.
309		*/
310	9	public function execute($query, $params = [])
311		{
312	9	list($query, $params) = $this->expandParamArray($query, $params);
313
314	9	$this->stmt = $this->pdo->prepare($query);
315	9	if (!$this->stmt) {
316		$this->pdoException($query, $params);
317		}
318
319	9	if ($this->options["verbose"]) {
320		echo $query . "\n";
321		print_r($params);
322		}
323
324	9	$res = $this->stmt->execute($params);
325	9	if (!$res) {
326		$this->statementException($query, $params);
327		}
328
329	9	return $this;
330		}
331
332
333
334		/**
335		* Throw exception using detailed message.
336		*
337		* @param string $msg detailed error message from PDO
338		* @param string $query query to execute
339		* @param array $param to match ? in statement
340		*
341		* @return void
342		*
343		* @throws \Anax\Database\Exception
344		*/
345		protected function createException($msg, $query, $param)
346		{
347		throw new Exception(
348		$msg
349		. "<br><br>SQL ("
350		. substr_count($query, "?")
351		. " params):<br><pre>$query</pre><br>PARAMS ("
352		. count($param)
353		. "):<br><pre>"
354		. implode($param, "\n")
355		. "</pre>"
356		. ((count(array_filter(array_keys($param), 'is_string')) > 0)
357		? "WARNING your params array has keys, should only have values."
358		: null)
359		);
360		}
361
362
363
364		/**
365		* Throw exception when pdo failed using detailed message.
366		*
367		* @param string $query query to execute
368		* @param array $param to match ? in statement
369		*
370		* @return void
371		*
372		* @throws \Anax\Database\Exception
373		*/
374		protected function pdoException($query, $param)
375		{
376		$this->createException($this->pdo->errorInfo()[2], $query, $param);
377		}
378
379
380
381		/**
382		* Throw exception when statement failed using detailed message.
383		*
384		* @param string $query query to execute
385		* @param array $param to match ? in statement
386		*
387		* @return void
388		*
389		* @throws \Anax\Database\Exception
390		*/
391		protected function statementException($query, $param)
392		{
393		$this->createException($this->stmt->errorInfo()[2], $query, $param);
394		}
395
396
397
398		/**
399		* Return last insert id from autoincremented key on INSERT.
400		*
401		* @return integer as last insert id.
402		*/
403	4	public function lastInsertId()
404		{
405	4	return $this->pdo->lastInsertId();
406		}
407
408
409
410		/**
411		* Return rows affected of last INSERT, UPDATE, DELETE
412		*
413		* @return integer as rows affected on last statement
414		*/
415	1	public function rowCount()
416		{
417	1	return $this->stmt->rowCount();
418		}
419
420
421
422		/**
423		* Fetch one resultset as an object from this class.
424		* OBSOLETE replaced by fetchClass
425		*
426		* @param object $class which type of object to instantiate.
427		*
428		* @return array with resultset.
429		*/
430		public function fetchObject($class)
431		{
432		return $this->stmt->fetchObject($class);
433		}
434
435
436
437		/**
438		* Fetch one resultset. OBSOLETE replace by fetch()
439		*
440		* @return array with resultset.
441		*/
442		public function fetchOne()
443		{
444		return $this->stmt->fetch();
445		}
446		}
447

canax / database

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Database::__construct() A

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