Pdo::normalizeRelation() - Code Metrics - Inspection of "Add relational on read model" - borobudur-php/borobudur-cqrs - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( acae87...3c5e0a )

by Iqbal

created 2016-08-22 08:38 UTC

Pdo::normalizeRelation() D

↳ Parent: Pdo

Complexity

Conditions	9
Paths	12

Size

Total Lines	29
Code Lines	20

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	29
rs	4.909
cc	9
eloc	20
nc	12
nop	2

<?php
/*
 * This file is part of the Borobudur-Cqrs package.
 *
 * (c) Hexacodelabs <http://hexacodelabs.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Borobudur\Cqrs\ReadModel\Storage\Pdo;

use Borobudur\Collection\Collection;
use Borobudur\Cqrs\Exception\InvalidArgumentException;
use Borobudur\Cqrs\ReadModel\ReadModelInterface;
use Borobudur\Cqrs\ReadModel\Storage\Finder\Expression\CompositeExpressionInterface;
use Borobudur\Cqrs\ReadModel\Storage\Pdo\Exception\PdoException;
use Borobudur\Cqrs\ReadModel\Storage\Pdo\Expression\PdoCompositeExpression;
use Borobudur\Cqrs\ReadModel\Storage\StorageInterface;
use Borobudur\Cqrs\Serializer\DataTypeCasterTrait;
use Borobudur\Serialization\StringInterface;
use Borobudur\Serialization\ValuableInterface;
use PDO as PhpPdo;
use PDOStatement;

/**
 * @author      Iqbal Maulana <[email protected]>
 * @created     8/18/15
 */
class Pdo implements StorageInterface
{
    use DataTypeCasterTrait;

    /**
     * @var PhpPdo
     */
    protected $conn;

    /**
     * @var PdoConfig
     */
    protected $config;

    /**
     * @var array
     */
    protected $quoteMaps = array('mysql' => '`', 'pgsql' => '"');

    /**
     * @var string
     */
    protected $quote = '`';

    /**
     * @var int
     */
    protected $transactionalLevel = 0;

    /**
     * @var bool
     */
    protected $transactional = false;

    /**
     * Constructor.
     *
     * @param PdoConfig $config
     */
    public function __construct(PdoConfig $config)
    {
        try {
            $this->conn = new PhpPdo($config->getDsn(), $config->getUser(), $config->getPass());
            $this->conn->setAttribute(PhpPdo::ATTR_ERRMODE, PhpPdo::ERRMODE_EXCEPTION);
        } catch (\PDOException $e) {
            throw new PdoException($e);
        }

        $this->config = $config;

        if (isset($this->quoteMaps[$config->getEngine()])) {
            $this->quote = $this->quoteMaps[$config->getEngine()];
        }
    }

    /**
     * {@inheritdoc}
     */
    public function save(ReadModelInterface $model, $table)
    {
        $class = get_class($model);
        $id = $this->resolveValue($model->getId());
        if (null !== $prev = $this->findById($id, $table, $class)) {
            $values = $this->normalize(array_merge($prev->serialize(), $model->serialize()));
            $conditions = $this->normalize(array('id' => $id));
            unset($values['id']);
            $this->exec($this->buildUpdateQuery($values, $conditions, $table), array_merge($values, $conditions));

            return;
        }

        $values = $this->normalize($this->normalizeRelation($model->serialize(), $class));
        $values['id'] = $id;
        $this->exec($this->buildInsertQuery($values, $table), $values);
    }

    /**
     * {@inheritdoc}
     */
    public function remove($id, $table)
    {
        $values = array('id' => $this->resolveValue($id));
        $this->exec(sprintf('DELETE FROM %s WHERE id = :id', $this->quote($table)), $values);
    }

    /**
     * {@inheritdoc}
     */
    public function findById($id, $table, $class)
    {
        $finder = $this->finder($table, $class);

        return $finder->where($finder->expr()->equal('id', $this->resolveValue($id)))->first();
    }

    /**
     * {@inheritdoc}
     */
    public function finder($table, $class)
    {
        return new PdoFinder($this, $table, $class, $this->config->getParser(), $this->quote);
    }

    /**
     * Execute query without statement.
     *
     * @param string $sql
     * @param array  $values
     */
    public function exec($sql, array $values = array())
    {
        if (!empty($values)) {
            $normalized = array();
            foreach ($values as $index => $value) {
                $normalized[':' . $index] = $value;
            }

            $values = $normalized;
        }

        try {
            $conn = $this->conn->prepare($sql);
            $conn->execute($values);
        } catch (\PDOException $e) {
            throw new PdoException($e);
        }
    }

    /**
     * Execute query with statement.
     *
     * @param string $sql
     * @param int    $mode
     *
     * @return PDOStatement
     */
    public function query($sql, $mode = PhpPdo::FETCH_ASSOC)
    {
        try {
            return $this->conn->query($sql, $mode);
        } catch (\PDOException $e) {
            throw new PdoException($e);
        }
    }

    /**
     * @return int
     */
    public function getTransactionalLevel()
    {
        return $this->transactionalLevel;
    }

    /**
     * @return boolean
     */
    public function isTransactional()
    {
        return $this->transactional;
    }

    /**
     * Begin transaction
     */
    public function beginTransaction()
    {
        $this->transactional = true;
        if (0 === $this->transactionalLevel) {
            $this->conn->beginTransaction();
        }

        $this->transactionalLevel += 1;
    }

    /**
     * Rollback transaction
     */
    public function rollback()
    {
        if (true === $this->transactional) {
            $this->transactionalLevel = 0;
            $this->transactional = false;
            $this->conn->rollBack();
        }
    }

    /**
     * Commit transaction.
     */
    public function commit()
    {
        if (true === $this->transactional) {
            $this->transactionalLevel -= 1;
            if (0 === $this->transactionalLevel) {
                $this->transactional = false;
                $this->conn->commit();
            }
        }
    }

    /**
     * Compute fields to expressions.
     *
     * @param array     $fields
     * @param PdoFinder $finder
     *
     * @return PdoCompositeExpression
     */
    protected function computeFieldsExpression(array $fields, PdoFinder $finder)
    {
        $expressions = array();
        foreach ($fields as $name => $value) {
            $expressions[] = $finder->expr()->equal($name, $value);
        }

        return new PdoCompositeExpression(CompositeExpressionInterface::LOGICAL_AND, $expressions);
    }

    /**
     * @param array  $values
     * @param string $class
     *
     * @return array
     */
    protected function normalizeRelation(array $values, $class)
    {
        $relations = $class::{'relations'}();
        foreach ($relations as $property => $relation) {
            $field = $relation['reference'];
            if (isset($values[$property])) {
                $value = $values[$property];
                if (is_object($value)) {
                    if (method_exists($value, 'getId')) {
                        $value = $value->{'getId'}();
                    } elseif (property_exists($value, 'id')) {
                        $value = $value->{'id'};
                    } else {
                        $value = null;
                    }
                } elseif (is_array($value) && isset($value['id'])) {
                    $value = $value['id'];
                }

                $values[$field] = $value ? (string) $value : null;
                unset($values[$property]);
                continue;
            }

            $values[$field] = null;
        }

        return $values;
    }

    /**
     * Normalize value.
     *
     * @param array $values
     *
     * @return array
     */
    protected function normalize(array $values)
    {
        foreach ($values as $name => $value) {
            if (is_array($value)) {
                throw new InvalidArgumentException(
                    sprintf(
                        'Cannot parse value with named "%s", data should be flat array.',
                        $name
                    )
                );
            }

            if (is_bool($value)) {
                $value = true === $value ? 'true' : 'false';
            }

            $values[$name] = self::castType($value);
        }

        return $values;
    }

    /**
     * Build query update.
     *
     * @param array  $values
     * @param array  $conditions
     * @param string $table
     *
     * @return string
     */
    protected function buildUpdateQuery(array $values, array $conditions, $table)
    {
        $sets = $this->buildDataSets($values);
        $wheres = $this->buildDataSets($conditions);

        return
            'UPDATE ' . $this->quote($table) .
            ' SET ' . implode(', ', $sets) .
            ' WHERE ' . implode(' AND ', $wheres);
    }

    /**
     * Build insert query.
     *
     * @param array  $values
     * @param string $table
     *
     * @return string
     */
    public function buildInsertQuery(array $values, $table)
    {
        $keys = array_map(array($this, 'quote'), array_keys($values));
        $values = array_keys($values);

        return
            'INSERT INTO ' . $this->quote($table) .
            ' (' . implode(', ', $keys) . ') VALUES (:' . implode(', :', $values) . ')';
    }

    /**
     * Build data sets.
     *
     * @param array $parts
     *
     * @return array
     */
    protected function buildDataSets(array $parts)
    {
        $sets = array();
        foreach ($parts as $name => $value) {
            $sets[] = $this->quote($name) . '=:' . $name;
        }

        return $sets;
    }

    /**
     * Quote field.
     *
     * @param string $field
     *
     * @return string
     */
    protected function quote($field)
    {
        return $this->quote . $field . $this->quote;
    }

    /**
     * @param mixed $value
     *
     * @return mixed|null|string
     */
    protected function resolveValue($value)
    {
        if ($value instanceof ValuableInterface) {
            return $value->getValue();
        }

        if ($value instanceof StringInterface) {
            return (string) $value;
        }

        return $value;
    }
}


1			<?php
2			/*
3			* This file is part of the Borobudur-Cqrs package.
4			*
5			* (c) Hexacodelabs <http://hexacodelabs.com>
6			*
7			* For the full copyright and license information, please view the LICENSE
8			* file that was distributed with this source code.
9			*/
10
11			namespace Borobudur\Cqrs\ReadModel\Storage\Pdo;
12
13			use Borobudur\Collection\Collection;
14			use Borobudur\Cqrs\Exception\InvalidArgumentException;
15			use Borobudur\Cqrs\ReadModel\ReadModelInterface;
16			use Borobudur\Cqrs\ReadModel\Storage\Finder\Expression\CompositeExpressionInterface;
17			use Borobudur\Cqrs\ReadModel\Storage\Pdo\Exception\PdoException;
18			use Borobudur\Cqrs\ReadModel\Storage\Pdo\Expression\PdoCompositeExpression;
19			use Borobudur\Cqrs\ReadModel\Storage\StorageInterface;
20			use Borobudur\Cqrs\Serializer\DataTypeCasterTrait;
21			use Borobudur\Serialization\StringInterface;
22			use Borobudur\Serialization\ValuableInterface;
23			use PDO as PhpPdo;
24			use PDOStatement;
25
26			/**
27			* @author Iqbal Maulana <[email protected]>
28			* @created 8/18/15
29			*/
30			class Pdo implements StorageInterface
31			{
32			use DataTypeCasterTrait;
33
34			/**
35			* @var PhpPdo
36			*/
37			protected $conn;
38
39			/**
40			* @var PdoConfig
41			*/
42			protected $config;
43
44			/**
45			* @var array
46			*/
47			protected $quoteMaps = array('mysql' => '`', 'pgsql' => '"');
48
49			/**
50			* @var string
51			*/
52			protected $quote = '`';
53
54			/**
55			* @var int
56			*/
57			protected $transactionalLevel = 0;
58
59			/**
60			* @var bool
61			*/
62			protected $transactional = false;
63
64			/**
65			* Constructor.
66			*
67			* @param PdoConfig $config
68			*/
69			public function __construct(PdoConfig $config)
70			{
71			try {
72			$this->conn = new PhpPdo($config->getDsn(), $config->getUser(), $config->getPass());
73			$this->conn->setAttribute(PhpPdo::ATTR_ERRMODE, PhpPdo::ERRMODE_EXCEPTION);
74			} catch (\PDOException $e) {
75			throw new PdoException($e);
76			}
77
78			$this->config = $config;
79
80			if (isset($this->quoteMaps[$config->getEngine()])) {
81			$this->quote = $this->quoteMaps[$config->getEngine()];
82			}
83			}
84
85			/**
86			* {@inheritdoc}
87			*/
88			public function save(ReadModelInterface $model, $table)
89			{
90			$class = get_class($model);
91			$id = $this->resolveValue($model->getId());
92			if (null !== $prev = $this->findById($id, $table, $class)) {
93			$values = $this->normalize(array_merge($prev->serialize(), $model->serialize()));
94			$conditions = $this->normalize(array('id' => $id));
95			unset($values['id']);
96			$this->exec($this->buildUpdateQuery($values, $conditions, $table), array_merge($values, $conditions));
97
98			return;
99			}
100
101			$values = $this->normalize($this->normalizeRelation($model->serialize(), $class));
102			$values['id'] = $id;
103			$this->exec($this->buildInsertQuery($values, $table), $values);
104			}
105
106			/**
107			* {@inheritdoc}
108			*/
109			public function remove($id, $table)
110			{
111			$values = array('id' => $this->resolveValue($id));
112			$this->exec(sprintf('DELETE FROM %s WHERE id = :id', $this->quote($table)), $values);
113			}
114
115			/**
116			* {@inheritdoc}
117			*/
118			public function findById($id, $table, $class)
119			{
120			$finder = $this->finder($table, $class);
121
122			return $finder->where($finder->expr()->equal('id', $this->resolveValue($id)))->first();
123			}
124
125			/**
126			* {@inheritdoc}
127			*/
128			public function finder($table, $class)
129			{
130			return new PdoFinder($this, $table, $class, $this->config->getParser(), $this->quote);
131			}
132
133			/**
134			* Execute query without statement.
135			*
136			* @param string $sql
137			* @param array $values
138			*/
139			public function exec($sql, array $values = array())
140			{
141			if (!empty($values)) {
142			$normalized = array();
143			foreach ($values as $index => $value) {
144			$normalized[':' . $index] = $value;
145			}
146
147			$values = $normalized;
148			}
149
150			try {
151			$conn = $this->conn->prepare($sql);
152			$conn->execute($values);
153			} catch (\PDOException $e) {
154			throw new PdoException($e);
155			}
156			}
157
158			/**
159			* Execute query with statement.
160			*
161			* @param string $sql
162			* @param int $mode
163			*
164			* @return PDOStatement
165			*/
166			public function query($sql, $mode = PhpPdo::FETCH_ASSOC)
167			{
168			try {
169			return $this->conn->query($sql, $mode);
170			} catch (\PDOException $e) {
171			throw new PdoException($e);
172			}
173			}
174
175			/**
176			* @return int
177			*/
178			public function getTransactionalLevel()
179			{
180			return $this->transactionalLevel;
181			}
182
183			/**
184			* @return boolean
185			*/
186			public function isTransactional()
187			{
188			return $this->transactional;
189			}
190
191			/**
192			* Begin transaction
193			*/
194			public function beginTransaction()
195			{
196			$this->transactional = true;
197			if (0 === $this->transactionalLevel) {
198			$this->conn->beginTransaction();
199			}
200
201			$this->transactionalLevel += 1;
202			}
203
204			/**
205			* Rollback transaction
206			*/
207			public function rollback()
208			{
209			if (true === $this->transactional) {
210			$this->transactionalLevel = 0;
211			$this->transactional = false;
212			$this->conn->rollBack();
213			}
214			}
215
216			/**
217			* Commit transaction.
218			*/
219			public function commit()
220			{
221			if (true === $this->transactional) {
222			$this->transactionalLevel -= 1;
223			if (0 === $this->transactionalLevel) {
224			$this->transactional = false;
225			$this->conn->commit();
226			}
227			}
228			}
229
230			/**
231			* Compute fields to expressions.
232			*
233			* @param array $fields
234			* @param PdoFinder $finder
235			*
236			* @return PdoCompositeExpression
237			*/
238			protected function computeFieldsExpression(array $fields, PdoFinder $finder)
239			{
240			$expressions = array();
241			foreach ($fields as $name => $value) {
242			$expressions[] = $finder->expr()->equal($name, $value);
243			}
244
245			return new PdoCompositeExpression(CompositeExpressionInterface::LOGICAL_AND, $expressions);
246			}
247
248			/**
249			* @param array $values
250			* @param string $class
251			*
252			* @return array
253			*/
254			protected function normalizeRelation(array $values, $class)
255			{
256			$relations = $class::{'relations'}();
257			foreach ($relations as $property => $relation) {
258			$field = $relation['reference'];
259			if (isset($values[$property])) {
260			$value = $values[$property];
261			if (is_object($value)) {
262			if (method_exists($value, 'getId')) {
263			$value = $value->{'getId'}();
264			} elseif (property_exists($value, 'id')) {
265			$value = $value->{'id'};
266			} else {
267			$value = null;
268			}
269			} elseif (is_array($value) && isset($value['id'])) {
270			$value = $value['id'];
271			}
272
273			$values[$field] = $value ? (string) $value : null;
274			unset($values[$property]);
275			continue;
276			}
277
278			$values[$field] = null;
279			}
280
281			return $values;
282			}
283
284			/**
285			* Normalize value.
286			*
287			* @param array $values
288			*
289			* @return array
290			*/
291			protected function normalize(array $values)
292			{
293			foreach ($values as $name => $value) {
294			if (is_array($value)) {
295			throw new InvalidArgumentException(
296			sprintf(
297			'Cannot parse value with named "%s", data should be flat array.',
298			$name
299			)
300			);
301			}
302
303			if (is_bool($value)) {
304			$value = true === $value ? 'true' : 'false';
305			}
306
307			$values[$name] = self::castType($value);
308			}
309
310			return $values;
311			}
312
313			/**
314			* Build query update.
315			*
316			* @param array $values
317			* @param array $conditions
318			* @param string $table
319			*
320			* @return string
321			*/
322			protected function buildUpdateQuery(array $values, array $conditions, $table)
323			{
324			$sets = $this->buildDataSets($values);
325			$wheres = $this->buildDataSets($conditions);
326
327			return
328			'UPDATE ' . $this->quote($table) .
329			' SET ' . implode(', ', $sets) .
330			' WHERE ' . implode(' AND ', $wheres);
331			}
332
333			/**
334			* Build insert query.
335			*
336			* @param array $values
337			* @param string $table
338			*
339			* @return string
340			*/
341			public function buildInsertQuery(array $values, $table)
342			{
343			$keys = array_map(array($this, 'quote'), array_keys($values));
344			$values = array_keys($values);
345
346			return
347			'INSERT INTO ' . $this->quote($table) .
348			' (' . implode(', ', $keys) . ') VALUES (:' . implode(', :', $values) . ')';
349			}
350
351			/**
352			* Build data sets.
353			*
354			* @param array $parts
355			*
356			* @return array
357			*/
358			protected function buildDataSets(array $parts)
359			{
360			$sets = array();
361			foreach ($parts as $name => $value) {
362			$sets[] = $this->quote($name) . '=:' . $name;
363			}
364
365			return $sets;
366			}
367
368			/**
369			* Quote field.
370			*
371			* @param string $field
372			*
373			* @return string
374			*/
375			protected function quote($field)
376			{
377			return $this->quote . $field . $this->quote;
378			}
379
380			/**
381			* @param mixed $value
382			*
383			* @return mixed\|null\|string
384			*/
385			protected function resolveValue($value)
386			{
387			if ($value instanceof ValuableInterface) {
388			return $value->getValue();
389			}
390
391			if ($value instanceof StringInterface) {
392			return (string) $value;
393			}
394
395			return $value;
396			}
397			}
398

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Pdo::normalizeRelation() D

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