Connection::onRollback() - Code Metrics - Inspection of "Refactored callback's a bit." - gielfeldt/transactionalphp - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( cd637e...97db54 )

by Thomas

created 2016-05-21 19:22 UTC

Connection::onRollback() A

↳ Parent: Connection

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

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	5
ccs	3
cts	3
cp	1
rs	9.4285
cc	1
eloc	3
nc	1
nop	1
crap	1

<?php

namespace Gielfeldt\TransactionalPHP;

/**
 * Class Connection
 *
 * @package Gielfeldt\TransactionalPHP
 */
class Connection
{
    /**
     * @var Operation[]
     */
    protected $operations = [];

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

    /**
     * @var int[]
     */
    protected $savePoints = [];

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

    /**
     * @var null|string
     */
    protected $connectionId;

    /**
     * Connection constructor.
     *
     * @param null|string $connectionId
     *   (optional) The id of the connection.
     */
    public function __construct($connectionId = null)
    {
        $this->connectionId = isset($connectionId) ? $connectionId : uniqid();
    }

    /**
     * Get connection id.
     *
     * @return null|string
     */
    public function connectionId()
    {
        return $this->connectionId;
    }

    /**
     * Remove savepoints to and acquire index of latest active savepoint.
     *
     * @param int $oldDepth
     *   The old depth.
     * @param $newDepth
     *   The new depth.
     *
     * @return int|null
     *   The last index, if found.
     */
    public function closeSavepoints($oldDepth, $newDepth)
    {
        $idx = null;
        for ($depth = $newDepth + 1; $depth <= $oldDepth; $depth++) {
            if (isset($this->savePoints[$depth])) {
                $idx = isset($idx) ? $idx : $this->savePoints[$depth];
                unset($this->savePoints[$depth]);
            }
        }
        return $idx;
    }

    /**
     * {@inheritdoc}
     */
    public function startTransaction($newDepth = null)
    {
        $this->depth = isset($newDepth) ? $newDepth : $this->depth + 1;
        $this->savePoints[$this->depth] = $this->idx;
    }

    /**
     * {@inheritdoc}
     */
    public function commitTransaction($newDepth = null)
    {
        $oldDepth = $this->depth;
        $this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
        if ($this->depth < 0) {
            throw new \RuntimeException('Trying to commit non-existant transaction.');
        }

        // Remove savepoints to and acquire index of latest active savepoint.
        $idx = $this->closeSavepoints($oldDepth, $this->depth);

        // Is this a real commit.
        if ($this->depth == 0 && isset($idx)) {
            // Perform the operations if any found.
            end($this->operations);
            $lastIdx = key($this->operations);
            for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
                if (isset($this->operations[$removeIdx])) {
                    $this->operations[$removeIdx]->commit();
                    $this->removeOperation($this->operations[$removeIdx]);
                }
            }
            $this->idx = $idx;
        }
    }

    /**
     * {@inheritdoc}
     */
    public function rollbackTransaction($newDepth = null)
    {
        $oldDepth = $this->depth;
        $this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
        if ($this->depth < 0) {
            throw new \RuntimeException('Trying to rollback non-existant transaction.');
        }

        // Remove savepoints to and acquire index of latest active savepoint.
        $idx = $this->closeSavepoints($oldDepth, $this->depth);

        // Remove operations up until latest active savepoint.
        if (isset($idx)) {
            end($this->operations);
            $lastIdx = key($this->operations);
            for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
                if (isset($this->operations[$removeIdx])) {
                    $this->operations[$removeIdx]->rollback();
                    $this->removeOperation($this->operations[$removeIdx]);
                }
            }
            reset($this->operations);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function addOperation(Operation $operation)
    {
        if ($this->depth <= 0) {
            $operation->commit();
        } else {
            $idx = $this->idx;
            $this->idx++;
            $this->operations[$idx] = $operation;
            $operation->setIdx($this, $idx);
        }
        return $operation;
    }

    /**
     * {@inheritdoc}
     */
    public function hasOperation(Operation $operation)
    {
        return isset($this->operations[$operation->idx($this)]);
    }

    /**
     * {@inheritdoc}
     */
    public function removeOperation(Operation $operation)
    {
        unset($this->operations[$operation->idx($this)]);
    }

    /**
     * Short-hand notation for adding code to be run on commit.
     *
     * @param callable $callback
     *   The code to run.
     *
     * @return Operation
     */
    public function onCommit(callable $callback)
    {
        return $this->addOperation((new Operation())
            ->onCommit($callback));
    }

    /**
     * Short-hand notation for adding code to be run on rollback.
     *
     * @param callable $callback
     *   The code to run.
     *
     * @return Operation
     */
    public function onRollback(callable $callback)
    {
        return $this->addOperation((new Operation())
            ->onRollback($callback));
    }
}


1		<?php
2
3		namespace Gielfeldt\TransactionalPHP;
4
5		/**
6		* Class Connection
7		*
8		* @package Gielfeldt\TransactionalPHP
9		*/
10		class Connection
11		{
12		/**
13		* @var Operation[]
14		*/
15		protected $operations = [];
16
17		/**
18		* @var int
19		*/
20		protected $idx = 0;
21
22		/**
23		* @var int[]
24		*/
25		protected $savePoints = [];
26
27		/**
28		* @var int
29		*/
30		protected $depth = 0;
31
32		/**
33		* @var null\|string
34		*/
35		protected $connectionId;
36
37		/**
38		* Connection constructor.
39		*
40		* @param null\|string $connectionId
41		* (optional) The id of the connection.
42		*/
43	1	public function __construct($connectionId = null)
44		{
45	1	$this->connectionId = isset($connectionId) ? $connectionId : uniqid();
46	1	}
47
48		/**
49		* Get connection id.
50		*
51		* @return null\|string
52		*/
53	1	public function connectionId()
54		{
55	1	return $this->connectionId;
56		}
57
58		/**
59		* Remove savepoints to and acquire index of latest active savepoint.
60		*
61		* @param int $oldDepth
62		* The old depth.
63		* @param $newDepth
64		* The new depth.
65		*
66		* @return int\|null
67		* The last index, if found.
68		*/
69	2	public function closeSavepoints($oldDepth, $newDepth)
70		{
71	2	$idx = null;
72	2	for ($depth = $newDepth + 1; $depth <= $oldDepth; $depth++) {
73	2	if (isset($this->savePoints[$depth])) {
74	2	$idx = isset($idx) ? $idx : $this->savePoints[$depth];
75	2	unset($this->savePoints[$depth]);
76	2	}
77	2	}
78	2	return $idx;
79		}
80
81		/**
82		* {@inheritdoc}
83		*/
84	1	public function startTransaction($newDepth = null)
85		{
86	1	$this->depth = isset($newDepth) ? $newDepth : $this->depth + 1;
87	1	$this->savePoints[$this->depth] = $this->idx;
88	1	}
89
90		/**
91		* {@inheritdoc}
92		*/
93	2	public function commitTransaction($newDepth = null)
94		{
95	2	$oldDepth = $this->depth;
96	2	$this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
97	2	if ($this->depth < 0) {
98	1	throw new \RuntimeException('Trying to commit non-existant transaction.');
99		}
100
101		// Remove savepoints to and acquire index of latest active savepoint.
102	2	$idx = $this->closeSavepoints($oldDepth, $this->depth);
103
104		// Is this a real commit.
105	2	if ($this->depth == 0 && isset($idx)) {
106		// Perform the operations if any found.
107	2	end($this->operations);
108	2	$lastIdx = key($this->operations);
109	2	for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
110	2	if (isset($this->operations[$removeIdx])) {
111	1	$this->operations[$removeIdx]->commit();
112	1	$this->removeOperation($this->operations[$removeIdx]);
113	1	}
114	2	}
115	2	$this->idx = $idx;
116	2	}
117	2	}
118
119		/**
120		* {@inheritdoc}
121		*/
122	2	public function rollbackTransaction($newDepth = null)
123		{
124	2	$oldDepth = $this->depth;
125	2	$this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
126	2	if ($this->depth < 0) {
127	1	throw new \RuntimeException('Trying to rollback non-existant transaction.');
128		}
129
130		// Remove savepoints to and acquire index of latest active savepoint.
131	2	$idx = $this->closeSavepoints($oldDepth, $this->depth);
132
133		// Remove operations up until latest active savepoint.
134	2	if (isset($idx)) {
135	2	end($this->operations);
136	2	$lastIdx = key($this->operations);
137	2	for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
138	2	if (isset($this->operations[$removeIdx])) {
139	1	$this->operations[$removeIdx]->rollback();
140	1	$this->removeOperation($this->operations[$removeIdx]);
141	1	}
142	2	}
143	2	reset($this->operations);
144	2	}
145	2	}
146
147		/**
148		* {@inheritdoc}
149		*/
150	1	public function addOperation(Operation $operation)
151		{
152	1	if ($this->depth <= 0) {
153	1	$operation->commit();
154	1	} else {
155	1	$idx = $this->idx;
156	1	$this->idx++;
157	1	$this->operations[$idx] = $operation;
158	1	$operation->setIdx($this, $idx);
159		}
160	1	return $operation;
161		}
162
163		/**
164		* {@inheritdoc}
165		*/
166	2	public function hasOperation(Operation $operation)
167		{
168	2	return isset($this->operations[$operation->idx($this)]);
169		}
170
171		/**
172		* {@inheritdoc}
173		*/
174	1	public function removeOperation(Operation $operation)
175		{
176	1	unset($this->operations[$operation->idx($this)]);
177	1	}
178
179		/**
180		* Short-hand notation for adding code to be run on commit.
181		*
182		* @param callable $callback
183		* The code to run.
184		*
185		* @return Operation
186		*/
187	1	public function onCommit(callable $callback)
188		{
189	1	return $this->addOperation((new Operation())
190	1	->onCommit($callback));
191		}
192
193		/**
194		* Short-hand notation for adding code to be run on rollback.
195		*
196		* @param callable $callback
197		* The code to run.
198		*
199		* @return Operation
200		*/
201	1	public function onRollback(callable $callback)
202		{
203	1	return $this->addOperation((new Operation())
204	1	->onRollback($callback));
205		}
206		}
207

gielfeldt / transactionalphp

Push — master ( cd637e...97db54 )

Connection::onRollback() A

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