DDLQueryBuilder::dropForeignKey() - Code Metrics - Inspection of "Test 3: Move `src\TestSupport\TestCommandTrait::cl..." - yiisoft/db-mysql - Measure and Improve Code Quality continuously with Scrutinizer

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Pull Request — master (#160)

by Wilmer

created 2022-11-27 17:32 UTC

DDLQueryBuilder::dropForeignKey() A

↳ Parent: DDLQueryBuilder

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	4
c	1
b	0
f	0
nc	1
nop	2
dl	0
loc	6
ccs	3
cts	3
cp	1
crap	1
rs	10

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Mysql;

use Throwable;
use Yiisoft\Db\Exception\Exception;
use Yiisoft\Db\Exception\InvalidArgumentException;
use Yiisoft\Db\Exception\NotSupportedException;
use Yiisoft\Db\QueryBuilder\DDLQueryBuilder as AbstractDDLQueryBuilder;
use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
use Yiisoft\Db\Schema\QuoterInterface;
use Yiisoft\Db\Schema\SchemaInterface;

use function preg_match;
use function preg_replace;
use function trim;

final class DDLQueryBuilder extends AbstractDDLQueryBuilder
{
    public function __construct(
        private QueryBuilderInterface $queryBuilder,
        private QuoterInterface $quoter,
        private SchemaInterface $schema
    ) {
        parent::__construct($queryBuilder, $quoter, $schema);
    }

    /**
     * @throws NotSupportedException
     */
    public function addCheck(string $name, string $table, string $expression): string
    {
        throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
    }

    /**
     * @throws Exception|Throwable
     */
    public function addCommentOnColumn(string $table, string $column, string $comment): string
    {
        /* Strip existing comment which may include escaped quotes */
        $definition = trim(
            preg_replace(
                "/COMMENT '(?:''|[^'])*'/i",
                '',
                $this->getColumnDefinition($table, $column)
            )
        );

        $checkRegex = '/CHECK *(\(([^()]|(?-2))*\))/';
        $check = preg_match($checkRegex, $definition, $checkMatches);

        if ($check === 1) {
            $definition = preg_replace($checkRegex, '', $definition);
        }

        $alterSql = 'ALTER TABLE '
            . $this->quoter->quoteTableName($table)
            . ' CHANGE '
            . $this->quoter->quoteColumnName($column)
            . ' '
            . $this->quoter->quoteColumnName($column)
            . (empty($definition) ? '' : ' ' . $definition)
            . ' COMMENT '
            . (string) $this->quoter->quoteValue($comment);

        if ($check === 1) {
            $alterSql .= ' ' . $checkMatches[0];
        }

        return $alterSql;
    }

    /**
     * @throws \Exception
     */
    public function addCommentOnTable(string $table, string $comment): string
    {
        return 'ALTER TABLE '
            . $this->quoter->quoteTableName($table)
            . ' COMMENT '
            . (string) $this->quoter->quoteValue($comment);
    }

    /**
     * @throws Exception|InvalidArgumentException
     */
    public function createIndex(
        string $name,
        string $table,
        array|string $columns,
        string $indexType = null,
        string $indexMethod = null
    ): string {
        return 'CREATE ' . ($indexType ? ($indexType . ' ') : '') . 'INDEX '
            . $this->quoter->quoteTableName($name)
            . ($indexMethod !== null ? " USING $indexMethod" : '')
            . ' ON ' . $this->quoter->quoteTableName($table)
            . ' (' . $this->queryBuilder->buildColumns($columns) . ')';
    }

    public function checkIntegrity(string $schema = '', string $table = '', bool $check = true): string
    {
        return 'SET FOREIGN_KEY_CHECKS = ' . ($check ? 1 : 0);
    }

    /**
     * @throws NotSupportedException
     */
    public function dropCheck(string $name, string $table): string
    {
        throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
    }

    /**
     * @throws Exception|Throwable
     */
    public function dropCommentFromColumn(string $table, string $column): string
    {
        return $this->addCommentOnColumn($table, $column, '');
    }

    /**
     * @throws \Exception
     */
    public function dropCommentFromTable(string $table): string
    {
        return $this->addCommentOnTable($table, '');
    }

    public function dropForeignKey(string $name, string $table): string
    {
        return 'ALTER TABLE '
            . $this->quoter->quoteTableName($table)
            . ' DROP FOREIGN KEY '
            . $this->quoter->quoteColumnName($name);
    }

    public function dropPrimaryKey(string $name, string $table): string
    {
        return 'ALTER TABLE ' . $this->quoter->quoteTableName($table) . ' DROP PRIMARY KEY';
    }

    public function dropUnique(string $name, string $table): string
    {
        return $this->dropIndex($name, $table);
    }

    /**
     * @throws Exception|Throwable
     */
    public function renameColumn(string $table, string $oldName, string $newName): string
    {
        $quotedTable = $this->quoter->quoteTableName($table);

        $columnDefinition = $this->getColumnDefinition($table, $oldName);

        /* try to give back a SQL anyway */
        return "ALTER TABLE $quotedTable CHANGE "
            . $this->quoter->quoteColumnName($oldName) . ' '
            . $this->quoter->quoteColumnName($newName)
            . (!empty($columnDefinition) ? ' ' . $columnDefinition : '');
    }

    /**
     * Gets column definition.
     *
     * @param string $table table name.
     * @param string $column column name.
     *
     * @throws Exception|Throwable in case when table does not contain column.
     *
     * @return string the column definition.
     */
    public function getColumnDefinition(string $table, string $column): string
    {
        $result = '';

        $sql = $this->schema->getTableSchema($table)?->getCreateSql();

        if (empty($sql)) {
            return '';
        }

        if (preg_match_all('/^\s*`(.*?)`\s+(.*?),?$/m', $sql, $matches)) {
            foreach ($matches[1] as $i => $c) {
                if ($c === $column) {
                    $result = $matches[2][$i];
                }
            }
        }

        return $result;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Db\Mysql;
6
7		use Throwable;
8		use Yiisoft\Db\Exception\Exception;
9		use Yiisoft\Db\Exception\InvalidArgumentException;
10		use Yiisoft\Db\Exception\NotSupportedException;
11		use Yiisoft\Db\QueryBuilder\DDLQueryBuilder as AbstractDDLQueryBuilder;
12		use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
13		use Yiisoft\Db\Schema\QuoterInterface;
14		use Yiisoft\Db\Schema\SchemaInterface;
15
16		use function preg_match;
17		use function preg_replace;
18		use function trim;
19
20		final class DDLQueryBuilder extends AbstractDDLQueryBuilder
21		{
22	393	public function __construct(
23		private QueryBuilderInterface $queryBuilder,
24		private QuoterInterface $quoter,
25		private SchemaInterface $schema
26		) {
27	393	parent::__construct($queryBuilder, $quoter, $schema);
28		}
29
30		/**
31		* @throws NotSupportedException
32		*/
33		public function addCheck(string $name, string $table, string $expression): string
34		{
35		throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
36		}
37
38		/**
39		* @throws Exception\|Throwable
40		*/
41	3	public function addCommentOnColumn(string $table, string $column, string $comment): string
42		{
43		/* Strip existing comment which may include escaped quotes */
44	3	$definition = trim(
45	3	preg_replace(
46		"/COMMENT '(?:''\|[^'])*'/i",
47		'',
48	3	$this->getColumnDefinition($table, $column)
49		)
50		);
51
52	3	$checkRegex = '/CHECK (\(([^()]\|(?-2))\))/';
53	3	$check = preg_match($checkRegex, $definition, $checkMatches);
54
55	3	if ($check === 1) {
56		$definition = preg_replace($checkRegex, '', $definition);
57		}
58
59	3	$alterSql = 'ALTER TABLE '
60	3	. $this->quoter->quoteTableName($table)
61		. ' CHANGE '
62	3	. $this->quoter->quoteColumnName($column)
63		. ' '
64	3	. $this->quoter->quoteColumnName($column)
65	3	. (empty($definition) ? '' : ' ' . $definition)
66		. ' COMMENT '
67	3	. (string) $this->quoter->quoteValue($comment);
68
69	3	if ($check === 1) {
70		$alterSql .= ' ' . $checkMatches[0];
71		}
72
73	3	return $alterSql;
74		}
75
76		/**
77		* @throws \Exception
78		*/
79	3	public function addCommentOnTable(string $table, string $comment): string
80		{
81		return 'ALTER TABLE '
82	3	. $this->quoter->quoteTableName($table)
83		. ' COMMENT '
84	3	. (string) $this->quoter->quoteValue($comment);
85		}
86
87		/**
88		* @throws Exception\|InvalidArgumentException
89		*/
90	9	public function createIndex(
91		string $name,
92		string $table,
93		array\|string $columns,
94		string $indexType = null,
95		string $indexMethod = null
96		): string {
97	9	return 'CREATE ' . ($indexType ? ($indexType . ' ') : '') . 'INDEX '
98	9	. $this->quoter->quoteTableName($name)
99	9	. ($indexMethod !== null ? " USING $indexMethod" : '')
100	9	. ' ON ' . $this->quoter->quoteTableName($table)
101	9	. ' (' . $this->queryBuilder->buildColumns($columns) . ')';
102		}
103
104	2	public function checkIntegrity(string $schema = '', string $table = '', bool $check = true): string
105		{
106	2	return 'SET FOREIGN_KEY_CHECKS = ' . ($check ? 1 : 0);
107		}
108
109		/**
110		* @throws NotSupportedException
111		*/
112	1	public function dropCheck(string $name, string $table): string
113		{
114	1	throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
115		}
116
117		/**
118		* @throws Exception\|Throwable
119		*/
120	2	public function dropCommentFromColumn(string $table, string $column): string
121		{
122	2	return $this->addCommentOnColumn($table, $column, '');
123		}
124
125		/**
126		* @throws \Exception
127		*/
128	2	public function dropCommentFromTable(string $table): string
129		{
130	2	return $this->addCommentOnTable($table, '');
131		}
132
133	2	public function dropForeignKey(string $name, string $table): string
134		{
135		return 'ALTER TABLE '
136	2	. $this->quoter->quoteTableName($table)
137		. ' DROP FOREIGN KEY '
138	2	. $this->quoter->quoteColumnName($name);
139		}
140
141	2	public function dropPrimaryKey(string $name, string $table): string
142		{
143	2	return 'ALTER TABLE ' . $this->quoter->quoteTableName($table) . ' DROP PRIMARY KEY';
144		}
145
146	2	public function dropUnique(string $name, string $table): string
147		{
148	2	return $this->dropIndex($name, $table);
149		}
150
151		/**
152		* @throws Exception\|Throwable
153		*/
154	2	public function renameColumn(string $table, string $oldName, string $newName): string
155		{
156	2	$quotedTable = $this->quoter->quoteTableName($table);
157
158	2	$columnDefinition = $this->getColumnDefinition($table, $oldName);
159
160		/* try to give back a SQL anyway */
161	2	return "ALTER TABLE $quotedTable CHANGE "
162	2	. $this->quoter->quoteColumnName($oldName) . ' '
163	2	. $this->quoter->quoteColumnName($newName)
164	2	. (!empty($columnDefinition) ? ' ' . $columnDefinition : '');
165		}
166
167		/**
168		* Gets column definition.
169		*
170		* @param string $table table name.
171		* @param string $column column name.
172		*
173		* @throws Exception\|Throwable in case when table does not contain column.
174		*
175		* @return string the column definition.
176		*/
177	5	public function getColumnDefinition(string $table, string $column): string
178		{
179	5	$result = '';
180
181	5	$sql = $this->schema->getTableSchema($table)?->getCreateSql();
182
183	5	if (empty($sql)) {
184		return '';
185		}
186
187	5	if (preg_match_all('/^\s`(.?)`\s+(.*?),?$/m', $sql, $matches)) {
188	5	foreach ($matches[1] as $i => $c) {
189	5	if ($c === $column) {
190	5	$result = $matches[2][$i];
191		}
192		}
193		}
194
195	5	return $result;
196		}
197		}
198

yiisoft / db-mysql

Pull Request — master (#160)

DDLQueryBuilder::dropForeignKey() A

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