DDLQueryBuilder::getColumnDefinition() - Code Metrics - Inspection of "Refactoring createIndex and more cleanup of code (..." - yiisoft/db-mysql - Measure and Improve Code Quality continuously with Scrutinizer

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by Def

created 2022-05-08 13:11 UTC

DDLQueryBuilder::getColumnDefinition() A

↳ Parent: DDLQueryBuilder

Complexity

Conditions	5
Paths	3

Size

Total Lines	19
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	5.025

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	9
c	1
b	0
f	0
dl	0
loc	19
ccs	9
cts	10
cp	0.9
rs	9.6111
cc	5
nc	3
nop	2
crap	5.025

<?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\Query\DDLQueryBuilder as AbstractDDLQueryBuilder;
use Yiisoft\Db\Query\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\Query\DDLQueryBuilder as AbstractDDLQueryBuilder;
12		use Yiisoft\Db\Query\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	354	public function __construct(
23		private QueryBuilderInterface $queryBuilder,
24		private QuoterInterface $quoter,
25		private SchemaInterface $schema
26		) {
27	354	parent::__construct($queryBuilder, $quoter, $schema);
28		}
29
30		/**
31		* @throws NotSupportedException
32		*/
33	1	public function addCheck(string $name, string $table, string $expression): string
34		{
35	1	throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
36		}
37
38		/**
39		* @throws Exception\|Throwable
40		*/
41	1	public function addCommentOnColumn(string $table, string $column, string $comment): string
42		{
43		/* Strip existing comment which may include escaped quotes */
44	1	$definition = trim(
45	1	preg_replace(
46		"/COMMENT '(?:''\|[^'])*'/i",
47		'',
48	1	$this->getColumnDefinition($table, $column)
49		)
50		);
51
52	1	$checkRegex = '/CHECK (\(([^()]\|(?-2))\))/';
53	1	$check = preg_match($checkRegex, $definition, $checkMatches);
54
55	1	if ($check === 1) {
56		$definition = preg_replace($checkRegex, '', $definition);
57		}
58
59	1	$alterSql = 'ALTER TABLE '
60	1	. $this->quoter->quoteTableName($table)
61		. ' CHANGE '
62	1	. $this->quoter->quoteColumnName($column)
63		. ' '
64	1	. $this->quoter->quoteColumnName($column)
65	1	. (empty($definition) ? '' : ' ' . $definition)
66		. ' COMMENT '
67	1	. (string) $this->quoter->quoteValue($comment);
68
69	1	if ($check === 1) {
70		$alterSql .= ' ' . $checkMatches[0];
71		}
72
73	1	return $alterSql;
74		}
75
76		/**
77		* @throws \Exception
78		*/
79	1	public function addCommentOnTable(string $table, string $comment): string
80		{
81		return 'ALTER TABLE '
82	1	. $this->quoter->quoteTableName($table)
83		. ' COMMENT '
84	1	. (string) $this->quoter->quoteValue($comment);
85		}
86
87		/**
88		* @throws Exception\|InvalidArgumentException
89		*/
90	6	public function createIndex(string $name, string $table, array\|string $columns, ?string $indexType = null, ?string $indexMethod = null): string
91		{
92	6	return 'CREATE ' . ($indexType ? ($indexType . ' ') : '') . 'INDEX '
93	6	. $this->quoter->quoteTableName($name)
94	6	. ($indexMethod !== null ? " USING $indexMethod" : '')
95	6	. ' ON ' . $this->quoter->quoteTableName($table)
96	6	. ' (' . $this->queryBuilder->buildColumns($columns) . ')';
97		}
98
99	1	public function checkIntegrity(string $schema = '', string $table = '', bool $check = true): string
100		{
101	1	return 'SET FOREIGN_KEY_CHECKS = ' . ($check ? 1 : 0);
102		}
103
104		/**
105		* @throws NotSupportedException
106		*/
107	1	public function dropCheck(string $name, string $table): string
108		{
109	1	throw new NotSupportedException(__METHOD__ . ' is not supported by MySQL.');
110		}
111
112		/**
113		* @throws Exception\|Throwable
114		*/
115	1	public function dropCommentFromColumn(string $table, string $column): string
116		{
117	1	return $this->addCommentOnColumn($table, $column, '');
118		}
119
120		/**
121		* @throws \Exception
122		*/
123	1	public function dropCommentFromTable(string $table): string
124		{
125	1	return $this->addCommentOnTable($table, '');
126		}
127
128	2	public function dropForeignKey(string $name, string $table): string
129		{
130		return 'ALTER TABLE '
131	2	. $this->quoter->quoteTableName($table)
132		. ' DROP FOREIGN KEY '
133	2	. $this->quoter->quoteColumnName($name);
134		}
135
136	2	public function dropPrimaryKey(string $name, string $table): string
137		{
138	2	return 'ALTER TABLE ' . $this->quoter->quoteTableName($table) . ' DROP PRIMARY KEY';
139		}
140
141	2	public function dropUnique(string $name, string $table): string
142		{
143	2	return $this->dropIndex($name, $table);
144		}
145
146		/**
147		* @throws Exception\|Throwable
148		*/
149	1	public function renameColumn(string $table, string $oldName, string $newName): string
150		{
151	1	$quotedTable = $this->quoter->quoteTableName($table);
152
153	1	$columnDefinition = $this->getColumnDefinition($table, $oldName);
154
155		/* try to give back a SQL anyway */
156	1	return "ALTER TABLE $quotedTable CHANGE "
157	1	. $this->quoter->quoteColumnName($oldName) . ' '
158	1	. $this->quoter->quoteColumnName($newName)
159	1	. (!empty($columnDefinition) ? ' ' . $columnDefinition : '');
160		}
161
162		/**
163		* Gets column definition.
164		*
165		* @param string $table table name.
166		* @param string $column column name.
167		*
168		* @throws Exception\|Throwable in case when table does not contain column.
169		*
170		* @return string the column definition.
171		*/
172	2	public function getColumnDefinition(string $table, string $column): string
173		{
174	2	$result = '';
175
176	2	$sql = $this->schema->getTableSchema($table)?->getCreateSql();
177
178	2	if (empty($sql)) {
179		return '';
180		}
181
182	2	if (preg_match_all('/^\s`(.?)`\s+(.*?),?$/m', $sql, $matches)) {
183	2	foreach ($matches[1] as $i => $c) {
184	2	if ($c === $column) {
185	2	$result = $matches[2][$i];
186		}
187		}
188		}
189
190	2	return $result;
191		}
192		}
193

yiisoft / db-mysql

Push — dev ( c92037...8f8fc2 )

DDLQueryBuilder::getColumnDefinition() A

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