SqlMySql::getIntegerMinMax() - Code Metrics - Inspection of "Se implementa la revisión de índices de las tablas" - rsanjoseo/alxarafe - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

Push — main ( a047e2...82fe17 )

by Rafael

created 2023-02-01 18:01 UTC

SqlMySql::getIntegerMinMax() B

↳ Parent: SqlMySql

Complexity

Conditions	7
Paths	20

Size

Total Lines	45
Code Lines	29

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	7
eloc	29
nc	20
nop	2
dl	0
loc	45
rs	8.5226
c	0
b	0
f	0

<?php
/**
 * Alxarafe. Development of PHP applications in a flash!
 * Copyright (C) 2018 Alxarafe <[email protected]>
 */

namespace Alxarafe\Database\SqlHelpers;

use Alxarafe\Core\Singletons\Debug;
use Alxarafe\Core\Utils\ArrayUtils;
use Alxarafe\Core\Singletons\Config;
use Alxarafe\Database\DB;
use Alxarafe\Database\Schema;
use Alxarafe\Database\SqlHelper;

/**
 * Class SqlMySql
 *
 * Soporte específico para la creación de comandos y consultas usando el motor MySQL.
 * Es usado directamente por la clase estática DB.
 *
 * @author  Rafael San José Tovar <[email protected]>
 * @version 2023.0108
 *
 * @package Alxarafe\Database\SqlHelpers
 */
class SqlMySql extends SqlHelper
{
    /**
     * Retorna las comillas que encierran al nombre de la tabla en una consulta SQL.
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @return string
     */
    public static function getTableQuote(): string
    {
        return '`';
    }

    /**
     * Retorna las comillas que encierran al nombre de un campo en una consulta SQL
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @return string
     */
    public static function getFieldQuote(): string
    {
        return '"';
    }

    /**
     * Retorna true si la tabla existe en la base de datos.
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0106
     *
     * @param string $tableName
     *
     * @return bool
     */
    public static function tableExists(string $tableName): bool
    {
        $dbName = DB::$dbName;
        $sql = "SELECT COUNT(*) AS Total FROM information_schema.tables WHERE table_schema = '{$dbName}' AND table_name='{$tableName}'";

        $data = DB::select($sql);
        $result = reset($data);

        return $result['Total'] === '1';
    }

    /**
     * Retorna un array con la asociación de tipos del motor SQL para cada tipo definido
     * en el Schema.
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @return array[]
     */
    public static function getDataTypes(): array
    {
        return [
            Schema::TYPE_INTEGER => ['tinyint', 'smallint', 'mediumint', 'int', 'bigint'],
            Schema::TYPE_FLOAT => ['real', 'double'],
            Schema::TYPE_DECIMAL => ['decimal', 'numeric'],
            Schema::TYPE_STRING => ['char', 'varchar'],
            Schema::TYPE_TEXT => ['tinytext', 'text', 'mediumtext', 'longtext', 'blob'],
            Schema::TYPE_DATE => ['date'],
            Schema::TYPE_TIME => ['time'],
            Schema::TYPE_DATETIME => ['datetime', 'timestamp'],
            Schema::TYPE_BOOLEAN => ['boolean'],
        ];
    }

    /**
     * Retorna un array con el nombre de todas las tablas de la base de datos.
     *
     * @return array
     */
    public static function getTables(): array
    {
        $query = 'SHOW TABLES';
        return ArrayUtils::flatArray(DB::select($query));
    }

    /**
     * Retorna el tipo de dato que se utiliza para los índices autoincrementados
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @return string
     */
    public static function getIndexType(): string
    {
        return 'bigint(20) unsigned';
    }

    public static function getIntegerMinMax(int $size, bool $unsigned): array
    {
        switch ($size) {
            case 1:
                $type = 'tinyint';
                break;
            case 2:
                $type = 'smallint';
                break;
            case 3:
                $type = 'mediumint';
                break;
            case 4:
                $type = 'int';
                break;
            default:
                $type = 'bigint';
                $size = 8;
                break;
        }

        $bits = 8 * (int) $size;
        $physicalMaxLength = 2 ** $bits;

        /**
         * $minDataLength y $maxDataLength contendrán el mínimo y máximo valor que puede contener el campo.
         */
        $minDataLength = $unsigned ? 0 : -$physicalMaxLength / 2;
        $maxDataLength = ($unsigned ? $physicalMaxLength : $physicalMaxLength / 2) - 1;

        /**
         * De momento, se asignan los límites máximos por el tipo de dato.
         * En $min y $max, iremos arrastrando los límites conforme se vayan comprobando.
         * $min nunca podrá ser menor que $minDataLength.
         * $max nunca podrá ser mayor que $maxDataLength.
         */
        $min = $minDataLength;
        $max = $maxDataLength;

        return [
            'dbtype' => $type,
            'min' => $min,
            'max' => $max,
            'size' => $size,
            'unsigned' => $unsigned,
        ];
    }

    /**
     * Retorna un array asociativo con la información de cada columna de la tabla.
     * El resultado será dependiente del motor de base de datos.
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @param string $tableName
     *
     * @return array
     */
    public static function getColumns(string $tableName): array
    {
        $query = 'SHOW COLUMNS FROM ' . self::quoteTableName($tableName) . ';';
        $rows = DB::select($query);
        $result = [];
        foreach ($rows as $row) {
            unset($row['Key']);  // Los índices están gestionados por separado
            $result[$row['Field']] = $row;
        }
        return $result;
    }

    public static function yamlFieldIntegerToDb(array $data): string
    {
        $type = $data['dbtype'];
        // TODO: Aunque lo que está comentado va, igual no hace falta si al comparar
        //       ignoramos el tamaño a mostrar para los integer

        $unsigned = $data['unsigned'] ?? false;
        /*
        switch ($type) {
            case 'tinyint':
                return $type . ($unsigned ? '(3) unsigned' : '(4)');
            case 'smallint':
                break;
            case 'mediumint':
                break;
            case 'int':
                return $type . ($unsigned ? '(10) unsigned' : '(11)');
            case 'bigint':
                $type .= '(20)';
        }
        */
        return $type . ($unsigned ? ' unsigned' : '');
    }

    public static function yamlFieldToDb(array $data): array
    {
        $nullable = strtolower($data['nullable']) !== 'no';

        $result = [];
        $result['Field'] = $data['name'];

        $type = $data['dbtype'];
        switch ($data['generictype']) {
            case Schema::TYPE_INTEGER:
                $type = self::yamlFieldIntegerToDb($data);
                break;
            case Schema::TYPE_FLOAT:
            case Schema::TYPE_DECIMAL:
                break;
            case Schema::TYPE_STRING:
                $type = 'varchar(' . $data['length'] . ')';
                break;
            case Schema::TYPE_TEXT:
            case Schema::TYPE_DATE:
            case Schema::TYPE_TIME:
            case Schema::TYPE_DATETIME:
                break;
            case Schema::TYPE_BOOLEAN:
                //                $type = 'tinyint(1)';
                break;
        }
        $result['Type'] = $type;
        $result['Null'] = $nullable ? 'YES' : 'NO';
        $result['Key'] = $data['type'] === 'autoincrement' ? 'PRI' : '';
        $result['Default'] = $data['default'] ?? null;
        $result['Extra'] = $data['type'] === 'autoincrement' ? 'auto_increment' : '';
        return $result;
    }

    public static function yamlIndexToDb(array $data): array
    {
        $result = [];
        foreach ($data['fields'] as $name => $field) {
            if ($field['type'] === 'autoincrement') {
                $result['PRIMARY'] = [
                    'column' => $name,
                    'primary' => 'yes',
                ];
            }
        }
        return array_merge($result, $data['indexes'] ?? []);
    }

    public static function getSqlField(array $column): string
    {
        $field = $column['Field'];
        $type = $column['Type'];
        $null = $column['Null'];
        $key = $column['Key'];

        $default = $column['Default'];
        $extra = $column['Extra'];

        $sql = self::quoteTableName($field) . ' ' . $type;
        $nulo = ($null === 'YES');
        if ($extra === 'auto_increment') {
            $nulo = false;
            $sql .= ' PRIMARY KEY AUTO_INCREMENT';
        }

        $sql .= ($nulo ? '' : ' NOT') . ' NULL';

        $defecto = '';
        if (isset($default)) {
            if ($default === 'CURRENT_TIMESTAMP') {
                $defecto = $default;
            } elseif (is_bool($default)) {
                $defecto = $default ? 1 : 0;
            } else {
                $defecto = "'$defecto'";
            }
        } else {
            if ($nulo) {
                $defecto = 'NULL';
            }
        }

        if (!empty($defecto)) {
            $sql .= ' DEFAULT ' . $defecto;
        }
        return $sql;
    }

    public static function _dbFieldToSchema(array $data): array
    {
        return $data;
    }

    public static function _dbFieldToYaml(array $data): array
    {
        return $data;
    }

    /**
     * Recibiendo un array con los datos de un campo tal y como lo retorna la base de
     * datos, devuelve la información normalizada para ser utilizada por Schema.
     *
     * @author  Rafael San José Tovar <[email protected]>
     * @version 2023.0108
     *
     * @param array $row
     *
     * @return array
     */
    public static function _normalizeDbField(array $row): array
    {
        $result = [];
        $result['Field'] = $row['key'];
        $result['Type'] = $row['type'];
        $result['Null'] = $row['nullable'] ? 'YES' : 'NO';
        $result['Key'] = $row['type'] === 'autoincrement' ? 'PRI' : '';
        $result['Default'] = $row['default'] ?? null;
        $result['Extra'] = $row['type'] === 'autoincrement' ? 'auto_increment' : '';
        return $result;
    }

    /**
     * Divide the data type of a MySQL field into its various components: type,
     * length, unsigned or zerofill, if applicable.
     *
     * @param string $originalType
     *
     * @return array
     */
    private static function _splitType(string $originalType): array

    {
        $explode = explode(' ', strtolower($originalType));

        $pos = strpos($explode[0], '(');

        $type = $pos ? substr($explode[0], 0, $pos) : $explode[0];
        $length = $pos ? intval(substr($explode[0], $pos + 1)) : null;

        $pos = array_search('unsigned', $explode);
        $unsigned = $pos ? 'unsigned' : null;

        $pos = array_search('zerofill', $explode);
        $zerofill = $pos ? 'zerofill' : null;

        return ['type' => $type, 'length' => $length, 'unsigned' => $unsigned, 'zerofill' => $zerofill];
    }

    /**
     * Returns an array with the index information, and if there are, also constraints.
     *
     * @param array $row
     *
     * @return array
     */
    public static function normalizeIndexes(array $row): array
    {
        $result = [];
        $result['index'] = $row['Key_name'];
        $result['column'] = $row['Column_name'];
        $result['unique'] = $row['Non_unique'] == '0' ? 1 : 0;
        $result['nullable'] = $row['Null'] == 'YES' ? 1 : 0;
        $constrait = self::getConstraintData($row['Table'], $row['Key_name']);
        if (count($constrait) > 0) {
            $result['constraint'] = $constrait[0]['CONSTRAINT_NAME'];
            $result['referencedtable'] = $constrait[0]['REFERENCED_TABLE_NAME'];
            $result['referencedfield'] = $constrait[0]['REFERENCED_COLUMN_NAME'];
        }
        $constrait = self::getConstraintRules($row['Table'], $row['Key_name']);
        if (count($constrait) > 0) {
            $result['matchoption'] = $constrait[0]['MATCH_OPTION'];
            $result['updaterule'] = $constrait[0]['UPDATE_RULE'];
            $result['deleterule'] = $constrait[0]['DELETE_RULE'];
        }
        return $result;
    }

    /**
     * The data about the constraint that is found in the KEY_COLUMN_USAGE table
     * is returned.
     * Attempting to return the consolidated data generates an extremely slow query
     * in some MySQL installations, so 2 additional simple queries are made.
     *
     * @param string $tableName
     * @param string $constraintName
     *
     * @return array
     */
    private static function getConstraintData(string $tableName, string $constraintName): array
    {
        $dbName = DB::$dbName;

        return DB::select('
SELECT
	TABLE_NAME,
	COLUMN_NAME,
	CONSTRAINT_NAME,
	REFERENCED_TABLE_NAME,
	REFERENCED_COLUMN_NAME
FROM
	INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
	TABLE_SCHEMA = ' . self::quoteFieldName($dbName) . ' AND
	TABLE_NAME = ' . self::quoteFieldName($tableName) . ' AND
	constraint_name = ' . self::quoteFieldName($constraintName) . ' AND
	REFERENCED_COLUMN_NAME IS NOT NULL;
        ');
    }

    /**
     * The rules for updating and deleting data with constraint (table
     * REFERENTIAL_CONSTRAINTS) are returned.
     * Attempting to return the consolidated data generates an extremely slow query
     * in some MySQL installations, so 2 additional simple queries are made.
     *
     * @param string $tableName
     * @param string $constraintName
     *
     * @return array
     */
    private static function getConstraintRules(string $tableName, string $constraintName): array
    {
        $dbName = DB::$dbName;

        return DB::select('
SELECT
	MATCH_OPTION,
	UPDATE_RULE,
	DELETE_RULE
FROM information_schema.REFERENTIAL_CONSTRAINTS
WHERE
	constraint_schema = ' . self::quoteFieldName($dbName) . ' AND
	table_name = ' . self::quoteFieldName($tableName) . ' AND
	constraint_name = ' . self::quoteFieldName($constraintName) . ';
        ');
    }

    /**
     * Obtain an array with the basic information about the indexes of the table,
     * which will be supplemented with the restrictions later.
     *
     * @param string $tableName
     *
     * @return string
     */
    public static function getIndexesSql(string $tableName): string
    {
        // https://stackoverflow.com/questions/5213339/how-to-see-indexes-for-a-database-or-table-in-mysql

        return 'SHOW INDEX FROM ' . self::quoteTableName($tableName);
    }

    /**
     * Toma la estructura de un campo obtenida de la base de datos, y la retorna
     * de la misma forma en la que se usó al ser creada.
     * Esto es necesario, porque algunas bases de datos cambian tipos como boolean por
     * tinyint(1), o int por int(10)
     *
     * @author Rafael San José Tovar <[email protected]>
     *
     * @param string $genericType
     * @param array  $structure
     *
     * @return array
     */
    public static function sanitizeDbStructure(string $genericType, array $structure): array
    {
        $type = $structure['Type'];
        switch ($genericType) {
            // Tipos que no cambian
            case Schema::TYPE_FLOAT:
            case Schema::TYPE_DECIMAL:
            case Schema::TYPE_STRING:
            case Schema::TYPE_TEXT:
            case Schema::TYPE_DATE:
            case Schema::TYPE_TIME:
            case Schema::TYPE_DATETIME:
                break;
            // Tipos a los que hay que quitar los paréntesis
            case Schema::TYPE_INTEGER:
                $type = preg_replace("/\((.*?)\)/i", "", $type);
                break;
            // Tipos que cambian durante la creación
            case Schema::TYPE_BOOLEAN:
                $type = 'boolean'; // Se crea como boolean y se retorna como tinyint(1)
                $structure['Default'] = ($structure['Default'] === '1');
                break;
        }
        $structure['Type'] = $type;
        return $structure;
    }

    public static function modify(string $tableName, array $oldField, array $newField): string
    {
        $sql = 'ALTER TABLE ' . self::quoteTableName($tableName) . ' CHANGE ' . $oldField['Field'] . ' ' . $newField['Field'] . ' ';
        $sql .= $newField['Type'] . ' ';
        if (strtolower($newField['Null']) === 'no') {
            $sql .= 'NOT ';
        }
        $sql .= 'NULL';
        if ($newField['Default'] !== null) {
            if ($newField['Type'] === 'boolean') {
                $newField['Default'] = $newField['Default'] ? '1' : '0';
            }
            $sql .= ' DEFAULT "' . $newField['Default'] . '"';
        }
        $sql .= ';';
        return $sql;
    }

    /**
     * Obtains an array of indexes for a table
     *
     * @param string $tableName
     *
     * @return array
     * @throws \DebugBar\DebugBarException
     */
    public static function getIndexes(string $tableName): array
    {
        $query = self::getIndexesSql($tableName);
        $data = DB::select($query);
        $result = [];
        foreach ($data as $value) {
            $row = self::normalizeIndexes($value);
            $result[$row['index']] = $row;
        }

        return $result;
    }

    public static function createIndex(string $tableName, string $index, array $data): string
    {
        $name = $data['column'];
        $primary = $data['primary'] === 'yes';
        $unique = $data['unique'] === 'yes';
        $sql = "ALTER TABLE `$tableName` ADD CONSTRAINT `$index` ";
        if ($primary) {
            $sql .= "PRIMARY KEY(`$name`)";
        }
        if ($unique) {
            $sql .= "UNIQUE(`$name`)";
        }
        $sql .= ';';

        return $sql;
    }

    public static function changeIndex(string $tableName, string $index, array $oldData, array $newData): string
    {
        $oldPrimary = $oldData['index'] === 'PRIMARY';
        $oldUnique = $oldData['unique'] === 1;

        $newPrimary = $newData['primary'] === 'yes';
        $newUnique = $newData['unique'] === 'yes';

        $ok = true;
        $ok = $ok && ($oldData['column'] === $newData['column']);
        $ok = $ok && ($oldPrimary === $newPrimary);

        // Si es primaria, es unique siempre así que solo comprobamos si no es unique
        if ($ok && !$oldPrimary) {
            $ok = $ok && $oldUnique === $newUnique;
        }

        // No hay cambios
        if ($ok) {
            return '';
        }

        $name = $newData['column'];

        $sql = "ALTER TABLE `$tableName` ADD CONSTRAINT  `$index` ";
        if ($newPrimary) {
            $sql .= "PRIMARY KEY(`$name`)";
        }
        if ($newUnique) {
            $sql .= "UNIQUE(`$name`)";
        }
        $sql .= ';';

        return $sql;
    }

    public static function removeIndex(string $tableName, string $index): string
    {
        $sql = "ALTER TABLE `$tableName` DROP CONSTRAINT `$index`";

        return $sql;
    }

}


1			<?php
2			/**
3			* Alxarafe. Development of PHP applications in a flash!
4			* Copyright (C) 2018 Alxarafe <[email protected]>
5			*/
6
7			namespace Alxarafe\Database\SqlHelpers;
8
9			use Alxarafe\Core\Singletons\Debug;
10			use Alxarafe\Core\Utils\ArrayUtils;
11			use Alxarafe\Core\Singletons\Config;
12			use Alxarafe\Database\DB;
13			use Alxarafe\Database\Schema;
14			use Alxarafe\Database\SqlHelper;
15
16			/**
17			* Class SqlMySql
18			*
19			* Soporte específico para la creación de comandos y consultas usando el motor MySQL.
20			* Es usado directamente por la clase estática DB.
21			*
22			* @author Rafael San José Tovar <[email protected]>
23			* @version 2023.0108
24			*
25			* @package Alxarafe\Database\SqlHelpers
26			*/
27			class SqlMySql extends SqlHelper
28			{
29			/**
30			* Retorna las comillas que encierran al nombre de la tabla en una consulta SQL.
31			*
32			* @author Rafael San José Tovar <[email protected]>
33			* @version 2023.0108
34			*
35			* @return string
36			*/
37			public static function getTableQuote(): string
38			{
39			return '`';
40			}
41
42			/**
43			* Retorna las comillas que encierran al nombre de un campo en una consulta SQL
44			*
45			* @author Rafael San José Tovar <[email protected]>
46			* @version 2023.0108
47			*
48			* @return string
49			*/
50			public static function getFieldQuote(): string
51			{
52			return '"';
53			}
54
55			/**
56			* Retorna true si la tabla existe en la base de datos.
57			*
58			* @author Rafael San José Tovar <[email protected]>
59			* @version 2023.0106
60			*
61			* @param string $tableName
62			*
63			* @return bool
64			*/
65			public static function tableExists(string $tableName): bool
66			{
67			$dbName = DB::$dbName;
68			$sql = "SELECT COUNT(*) AS Total FROM information_schema.tables WHERE table_schema = '{$dbName}' AND table_name='{$tableName}'";
69
70			$data = DB::select($sql);
71			$result = reset($data);
72
73			return $result['Total'] === '1';
74			}
75
76			/**
77			* Retorna un array con la asociación de tipos del motor SQL para cada tipo definido
78			* en el Schema.
79			*
80			* @author Rafael San José Tovar <[email protected]>
81			* @version 2023.0108
82			*
83			* @return array[]
84			*/
85			public static function getDataTypes(): array
86			{
87			return [
88			Schema::TYPE_INTEGER => ['tinyint', 'smallint', 'mediumint', 'int', 'bigint'],
89			Schema::TYPE_FLOAT => ['real', 'double'],
90			Schema::TYPE_DECIMAL => ['decimal', 'numeric'],
91			Schema::TYPE_STRING => ['char', 'varchar'],
92			Schema::TYPE_TEXT => ['tinytext', 'text', 'mediumtext', 'longtext', 'blob'],
93			Schema::TYPE_DATE => ['date'],
94			Schema::TYPE_TIME => ['time'],
95			Schema::TYPE_DATETIME => ['datetime', 'timestamp'],
96			Schema::TYPE_BOOLEAN => ['boolean'],
97			];
98			}
99
100			/**
101			* Retorna un array con el nombre de todas las tablas de la base de datos.
102			*
103			* @return array
104			*/
105			public static function getTables(): array
106			{
107			$query = 'SHOW TABLES';
108			return ArrayUtils::flatArray(DB::select($query));
109			}
110
111			/**
112			* Retorna el tipo de dato que se utiliza para los índices autoincrementados
113			*
114			* @author Rafael San José Tovar <[email protected]>
115			* @version 2023.0108
116			*
117			* @return string
118			*/
119			public static function getIndexType(): string
120			{
121			return 'bigint(20) unsigned';
122			}
123
124			public static function getIntegerMinMax(int $size, bool $unsigned): array
125			{
126			switch ($size) {
127			case 1:
128			$type = 'tinyint';
129			break;
130			case 2:
131			$type = 'smallint';
132			break;
133			case 3:
134			$type = 'mediumint';
135			break;
136			case 4:
137			$type = 'int';
138			break;
139			default:
140			$type = 'bigint';
141			$size = 8;
142			break;
143			}
144
145			$bits = 8 * (int) $size;
146			$physicalMaxLength = 2 ** $bits;
147
148			/**
149			* $minDataLength y $maxDataLength contendrán el mínimo y máximo valor que puede contener el campo.
150			*/
151			$minDataLength = $unsigned ? 0 : -$physicalMaxLength / 2;
152			$maxDataLength = ($unsigned ? $physicalMaxLength : $physicalMaxLength / 2) - 1;
153
154			/**
155			* De momento, se asignan los límites máximos por el tipo de dato.
156			* En $min y $max, iremos arrastrando los límites conforme se vayan comprobando.
157			* $min nunca podrá ser menor que $minDataLength.
158			* $max nunca podrá ser mayor que $maxDataLength.
159			*/
160			$min = $minDataLength;
161			$max = $maxDataLength;
162
163			return [
164			'dbtype' => $type,
165			'min' => $min,
166			'max' => $max,
167			'size' => $size,
168			'unsigned' => $unsigned,
169			];
170			}
171
172			/**
173			* Retorna un array asociativo con la información de cada columna de la tabla.
174			* El resultado será dependiente del motor de base de datos.
175			*
176			* @author Rafael San José Tovar <[email protected]>
177			* @version 2023.0108
178			*
179			* @param string $tableName
180			*
181			* @return array
182			*/
183			public static function getColumns(string $tableName): array
184			{
185			$query = 'SHOW COLUMNS FROM ' . self::quoteTableName($tableName) . ';';
186			$rows = DB::select($query);
187			$result = [];
188			foreach ($rows as $row) {
189			unset($row['Key']); // Los índices están gestionados por separado
190			$result[$row['Field']] = $row;
191			}
192			return $result;
193			}
194
195			public static function yamlFieldIntegerToDb(array $data): string
196			{
197			$type = $data['dbtype'];
198			// TODO: Aunque lo que está comentado va, igual no hace falta si al comparar
199			// ignoramos el tamaño a mostrar para los integer
200
201			$unsigned = $data['unsigned'] ?? false;
202			/*
203			switch ($type) {
204			case 'tinyint':
205			return $type . ($unsigned ? '(3) unsigned' : '(4)');
206			case 'smallint':
207			break;
208			case 'mediumint':
209			break;
210			case 'int':
211			return $type . ($unsigned ? '(10) unsigned' : '(11)');
212			case 'bigint':
213			$type .= '(20)';
214			}
215			*/
216			return $type . ($unsigned ? ' unsigned' : '');
217			}
218
219			public static function yamlFieldToDb(array $data): array
220			{
221			$nullable = strtolower($data['nullable']) !== 'no';
222
223			$result = [];
224			$result['Field'] = $data['name'];
225
226			$type = $data['dbtype'];
227			switch ($data['generictype']) {
228			case Schema::TYPE_INTEGER:
229			$type = self::yamlFieldIntegerToDb($data);
230			break;
231			case Schema::TYPE_FLOAT:
232			case Schema::TYPE_DECIMAL:
233			break;
234			case Schema::TYPE_STRING:
235			$type = 'varchar(' . $data['length'] . ')';
236			break;
237			case Schema::TYPE_TEXT:
238			case Schema::TYPE_DATE:
239			case Schema::TYPE_TIME:
240			case Schema::TYPE_DATETIME:
241			break;
242			case Schema::TYPE_BOOLEAN:
243			// $type = 'tinyint(1)';
244			break;
245			}
246			$result['Type'] = $type;
247			$result['Null'] = $nullable ? 'YES' : 'NO';
248			$result['Key'] = $data['type'] === 'autoincrement' ? 'PRI' : '';
249			$result['Default'] = $data['default'] ?? null;
250			$result['Extra'] = $data['type'] === 'autoincrement' ? 'auto_increment' : '';
251			return $result;
252			}
253
254			public static function yamlIndexToDb(array $data): array
255			{
256			$result = [];
257			foreach ($data['fields'] as $name => $field) {
258			if ($field['type'] === 'autoincrement') {
259			$result['PRIMARY'] = [
260			'column' => $name,
261			'primary' => 'yes',
262			];
263			}
264			}
265			return array_merge($result, $data['indexes'] ?? []);
266			}
267
268			public static function getSqlField(array $column): string
269			{
270			$field = $column['Field'];
271			$type = $column['Type'];
272			$null = $column['Null'];
273			$key = $column['Key'];
			0 ignored issues – show Unused Code introduced 2023-01-27 20:28 UTC by Report Bug Copy Issue Report The assignment to `$key` is dead and can be removed. Loading history...
274			$default = $column['Default'];
275			$extra = $column['Extra'];
276
277			$sql = self::quoteTableName($field) . ' ' . $type;
278			$nulo = ($null === 'YES');
279			if ($extra === 'auto_increment') {
280			$nulo = false;
281			$sql .= ' PRIMARY KEY AUTO_INCREMENT';
282			}
283
284			$sql .= ($nulo ? '' : ' NOT') . ' NULL';
285
286			$defecto = '';
287			if (isset($default)) {
288			if ($default === 'CURRENT_TIMESTAMP') {
289			$defecto = $default;
290			} elseif (is_bool($default)) {
291			$defecto = $default ? 1 : 0;
292			} else {
293			$defecto = "'$defecto'";
294			}
295			} else {
296			if ($nulo) {
297			$defecto = 'NULL';
298			}
299			}
300
301			if (!empty($defecto)) {
302			$sql .= ' DEFAULT ' . $defecto;
303			}
304			return $sql;
305			}
306
307			public static function _dbFieldToSchema(array $data): array
308			{
309			return $data;
310			}
311
312			public static function _dbFieldToYaml(array $data): array
313			{
314			return $data;
315			}
316
317			/**
318			* Recibiendo un array con los datos de un campo tal y como lo retorna la base de
319			* datos, devuelve la información normalizada para ser utilizada por Schema.
320			*
321			* @author Rafael San José Tovar <[email protected]>
322			* @version 2023.0108
323			*
324			* @param array $row
325			*
326			* @return array
327			*/
328			public static function _normalizeDbField(array $row): array
329			{
330			$result = [];
331			$result['Field'] = $row['key'];
332			$result['Type'] = $row['type'];
333			$result['Null'] = $row['nullable'] ? 'YES' : 'NO';
334			$result['Key'] = $row['type'] === 'autoincrement' ? 'PRI' : '';
335			$result['Default'] = $row['default'] ?? null;
336			$result['Extra'] = $row['type'] === 'autoincrement' ? 'auto_increment' : '';
337			return $result;
338			}
339
340			/**
341			* Divide the data type of a MySQL field into its various components: type,
342			* length, unsigned or zerofill, if applicable.
343			*
344			* @param string $originalType
345			*
346			* @return array
347			*/
348			private static function _splitType(string $originalType): array
			0 ignored issues – show Unused Code introduced 2023-01-27 20:28 UTC by Report Bug Copy Issue Report The method `_splitType()` is not used, and could be removed. This check looks for private methods that have been defined, but are not used inside the class. Loading history...
349			{
350			$explode = explode(' ', strtolower($originalType));
351
352			$pos = strpos($explode[0], '(');
353
354			$type = $pos ? substr($explode[0], 0, $pos) : $explode[0];
355			$length = $pos ? intval(substr($explode[0], $pos + 1)) : null;
356
357			$pos = array_search('unsigned', $explode);
358			$unsigned = $pos ? 'unsigned' : null;
359
360			$pos = array_search('zerofill', $explode);
361			$zerofill = $pos ? 'zerofill' : null;
362
363			return ['type' => $type, 'length' => $length, 'unsigned' => $unsigned, 'zerofill' => $zerofill];
364			}
365
366			/**
367			* Returns an array with the index information, and if there are, also constraints.
368			*
369			* @param array $row
370			*
371			* @return array
372			*/
373			public static function normalizeIndexes(array $row): array
374			{
375			$result = [];
376			$result['index'] = $row['Key_name'];
377			$result['column'] = $row['Column_name'];
378			$result['unique'] = $row['Non_unique'] == '0' ? 1 : 0;
379			$result['nullable'] = $row['Null'] == 'YES' ? 1 : 0;
380			$constrait = self::getConstraintData($row['Table'], $row['Key_name']);
381			if (count($constrait) > 0) {
382			$result['constraint'] = $constrait[0]['CONSTRAINT_NAME'];
383			$result['referencedtable'] = $constrait[0]['REFERENCED_TABLE_NAME'];
384			$result['referencedfield'] = $constrait[0]['REFERENCED_COLUMN_NAME'];
385			}
386			$constrait = self::getConstraintRules($row['Table'], $row['Key_name']);
387			if (count($constrait) > 0) {
388			$result['matchoption'] = $constrait[0]['MATCH_OPTION'];
389			$result['updaterule'] = $constrait[0]['UPDATE_RULE'];
390			$result['deleterule'] = $constrait[0]['DELETE_RULE'];
391			}
392			return $result;
393			}
394
395			/**
396			* The data about the constraint that is found in the KEY_COLUMN_USAGE table
397			* is returned.
398			* Attempting to return the consolidated data generates an extremely slow query
399			* in some MySQL installations, so 2 additional simple queries are made.
400			*
401			* @param string $tableName
402			* @param string $constraintName
403			*
404			* @return array
405			*/
406			private static function getConstraintData(string $tableName, string $constraintName): array
407			{
408			$dbName = DB::$dbName;
409
410			return DB::select('
411			SELECT
412			TABLE_NAME,
413			COLUMN_NAME,
414			CONSTRAINT_NAME,
415			REFERENCED_TABLE_NAME,
416			REFERENCED_COLUMN_NAME
417			FROM
418			INFORMATION_SCHEMA.KEY_COLUMN_USAGE
419			WHERE
420			TABLE_SCHEMA = ' . self::quoteFieldName($dbName) . ' AND
421			TABLE_NAME = ' . self::quoteFieldName($tableName) . ' AND
422			constraint_name = ' . self::quoteFieldName($constraintName) . ' AND
423			REFERENCED_COLUMN_NAME IS NOT NULL;
424			');
425			}
426
427			/**
428			* The rules for updating and deleting data with constraint (table
429			* REFERENTIAL_CONSTRAINTS) are returned.
430			* Attempting to return the consolidated data generates an extremely slow query
431			* in some MySQL installations, so 2 additional simple queries are made.
432			*
433			* @param string $tableName
434			* @param string $constraintName
435			*
436			* @return array
437			*/
438			private static function getConstraintRules(string $tableName, string $constraintName): array
439			{
440			$dbName = DB::$dbName;
441
442			return DB::select('
443			SELECT
444			MATCH_OPTION,
445			UPDATE_RULE,
446			DELETE_RULE
447			FROM information_schema.REFERENTIAL_CONSTRAINTS
448			WHERE
449			constraint_schema = ' . self::quoteFieldName($dbName) . ' AND
450			table_name = ' . self::quoteFieldName($tableName) . ' AND
451			constraint_name = ' . self::quoteFieldName($constraintName) . ';
452			');
453			}
454
455			/**
456			* Obtain an array with the basic information about the indexes of the table,
457			* which will be supplemented with the restrictions later.
458			*
459			* @param string $tableName
460			*
461			* @return string
462			*/
463			public static function getIndexesSql(string $tableName): string
464			{
465			// https://stackoverflow.com/questions/5213339/how-to-see-indexes-for-a-database-or-table-in-mysql
466
467			return 'SHOW INDEX FROM ' . self::quoteTableName($tableName);
468			}
469
470			/**
471			* Toma la estructura de un campo obtenida de la base de datos, y la retorna
472			* de la misma forma en la que se usó al ser creada.
473			* Esto es necesario, porque algunas bases de datos cambian tipos como boolean por
474			* tinyint(1), o int por int(10)
475			*
476			* @author Rafael San José Tovar <[email protected]>
477			*
478			* @param string $genericType
479			* @param array $structure
480			*
481			* @return array
482			*/
483			public static function sanitizeDbStructure(string $genericType, array $structure): array
484			{
485			$type = $structure['Type'];
486			switch ($genericType) {
487			// Tipos que no cambian
488			case Schema::TYPE_FLOAT:
489			case Schema::TYPE_DECIMAL:
490			case Schema::TYPE_STRING:
491			case Schema::TYPE_TEXT:
492			case Schema::TYPE_DATE:
493			case Schema::TYPE_TIME:
494			case Schema::TYPE_DATETIME:
495			break;
496			// Tipos a los que hay que quitar los paréntesis
497			case Schema::TYPE_INTEGER:
498			$type = preg_replace("/\((.*?)\)/i", "", $type);
499			break;
500			// Tipos que cambian durante la creación
501			case Schema::TYPE_BOOLEAN:
502			$type = 'boolean'; // Se crea como boolean y se retorna como tinyint(1)
503			$structure['Default'] = ($structure['Default'] === '1');
504			break;
505			}
506			$structure['Type'] = $type;
507			return $structure;
508			}
509
510			public static function modify(string $tableName, array $oldField, array $newField): string
511			{
512			$sql = 'ALTER TABLE ' . self::quoteTableName($tableName) . ' CHANGE ' . $oldField['Field'] . ' ' . $newField['Field'] . ' ';
513			$sql .= $newField['Type'] . ' ';
514			if (strtolower($newField['Null']) === 'no') {
515			$sql .= 'NOT ';
516			}
517			$sql .= 'NULL';
518			if ($newField['Default'] !== null) {
519			if ($newField['Type'] === 'boolean') {
520			$newField['Default'] = $newField['Default'] ? '1' : '0';
521			}
522			$sql .= ' DEFAULT "' . $newField['Default'] . '"';
523			}
524			$sql .= ';';
525			return $sql;
526			}
527
528			/**
529			* Obtains an array of indexes for a table
530			*
531			* @param string $tableName
532			*
533			* @return array
534			* @throws \DebugBar\DebugBarException
535			*/
536			public static function getIndexes(string $tableName): array
537			{
538			$query = self::getIndexesSql($tableName);
539			$data = DB::select($query);
540			$result = [];
541			foreach ($data as $value) {
542			$row = self::normalizeIndexes($value);
543			$result[$row['index']] = $row;
544			}
545
546			return $result;
547			}
548
549			public static function createIndex(string $tableName, string $index, array $data): string
550			{
551			$name = $data['column'];
552			$primary = $data['primary'] === 'yes';
553			$unique = $data['unique'] === 'yes';
554			$sql = "ALTER TABLE `$tableName` ADD CONSTRAINT `$index` ";
555			if ($primary) {
556			$sql .= "PRIMARY KEY(`$name`)";
557			}
558			if ($unique) {
559			$sql .= "UNIQUE(`$name`)";
560			}
561			$sql .= ';';
562
563			return $sql;
564			}
565
566			public static function changeIndex(string $tableName, string $index, array $oldData, array $newData): string
567			{
568			$oldPrimary = $oldData['index'] === 'PRIMARY';
569			$oldUnique = $oldData['unique'] === 1;
570
571			$newPrimary = $newData['primary'] === 'yes';
572			$newUnique = $newData['unique'] === 'yes';
573
574			$ok = true;
575			$ok = $ok && ($oldData['column'] === $newData['column']);
576			$ok = $ok && ($oldPrimary === $newPrimary);
577
578			// Si es primaria, es unique siempre así que solo comprobamos si no es unique
579			if ($ok && !$oldPrimary) {
580			$ok = $ok && $oldUnique === $newUnique;
581			}
582
583			// No hay cambios
584			if ($ok) {
585			return '';
586			}
587
588			$name = $newData['column'];
589
590			$sql = "ALTER TABLE `$tableName` ADD CONSTRAINT `$index` ";
591			if ($newPrimary) {
592			$sql .= "PRIMARY KEY(`$name`)";
593			}
594			if ($newUnique) {
595			$sql .= "UNIQUE(`$name`)";
596			}
597			$sql .= ';';
598
599			return $sql;
600			}
601
602			public static function removeIndex(string $tableName, string $index): string
603			{
604			$sql = "ALTER TABLE `$tableName` DROP CONSTRAINT `$index`";
605
606			return $sql;
607			}
608
609			}
610

rsanjoseo / alxarafe

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SqlMySql::getIntegerMinMax() B

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