Magento 2 Agregue el campo de tipo "VARCHAR" en la tabla personalizada

Mire el archivo actual del adaptador de base de datos central (Table.php) ubicado en:

magento-2 / vendor / magento / framework / DB / Ddl:

<?php
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * Data Definition for table
 *
 * @author      Magento Core Team <[email protected]>
 */
namespace Magento\Framework\DB\Ddl;

use Magento\Framework\DB\Adapter\AdapterInterface;

class Table
{
    /**
     * Types of columns
     */
    const TYPE_BOOLEAN = 'boolean';

    const TYPE_SMALLINT = 'smallint';

    const TYPE_INTEGER = 'integer';

    const TYPE_BIGINT = 'bigint';

    const TYPE_FLOAT = 'float';

    const TYPE_NUMERIC = 'numeric';

    const TYPE_DECIMAL = 'decimal';

    const TYPE_DATE = 'date';

    const TYPE_TIMESTAMP = 'timestamp';

    // Capable to support date-time from 1970 + auto-triggers in some RDBMS
    const TYPE_DATETIME = 'datetime';

    // Capable to support long date-time before 1970
    const TYPE_TEXT = 'text';

    const TYPE_BLOB = 'blob';

    // Used for back compatibility, when query param can't use statement options
    const TYPE_VARBINARY = 'varbinary';

    // A real blob, stored as binary inside DB

    /**
     * Default and maximal TEXT and BLOB columns sizes we can support for different DB systems.
     */
    const DEFAULT_TEXT_SIZE = 1024;

    const MAX_TEXT_SIZE = 2147483648;

    const MAX_VARBINARY_SIZE = 2147483648;

    /**
     * Default values for timestamps - fill with current timestamp on inserting record, on changing and both cases
     */
    const TIMESTAMP_INIT_UPDATE = 'TIMESTAMP_INIT_UPDATE';

    const TIMESTAMP_INIT = 'TIMESTAMP_INIT';

    const TIMESTAMP_UPDATE = 'TIMESTAMP_UPDATE';

    /**
     * Actions used for foreign keys
     */
    const ACTION_CASCADE = 'CASCADE';

    const ACTION_SET_NULL = 'SET NULL';

    const ACTION_NO_ACTION = 'NO ACTION';

    const ACTION_RESTRICT = 'RESTRICT';

    const ACTION_SET_DEFAULT = 'SET DEFAULT';

    /**
     * Name of table
     *
     * @var string
     */
    protected $_tableName;

    /**
     * Schema name
     *
     * @var string
     */
    protected $_schemaName;

    /**
     * Comment for Table
     *
     * @var string
     */
    protected $_tableComment;

    /**
     * Column descriptions for a table
     *
     * Is an associative array keyed by the uppercase column name
     * The value of each array element is an associative array
     * with the following keys:
     *
     * COLUMN_NAME      => string; column name
     * COLUMN_POSITION  => number; ordinal position of column in table
     * DATA_TYPE        => string; constant datatype of column
     * DEFAULT          => string; default expression of column, null if none
     * NULLABLE         => boolean; true if column can have nulls
     * LENGTH           => number; length of CHAR/VARCHAR/INT
     * SCALE            => number; scale of NUMERIC/DECIMAL
     * PRECISION        => number; precision of NUMERIC/DECIMAL
     * UNSIGNED         => boolean; unsigned property of an integer type
     * PRIMARY          => boolean; true if column is part of the primary key
     * PRIMARY_POSITION => integer; position of column in primary key
     * IDENTITY         => integer; true if column is auto-generated with unique values
     * COMMENT          => string; column description
     *
     * @var array
     */
    protected $_columns = [];

    /**
     * Index descriptions for a table
     *
     * Is an associative array keyed by the uppercase index name
     * The value of each array element is an associative array
     * with the following keys:
     *
     * INDEX_NAME       => string; index name
     * COLUMNS          => array; array of index columns
     * TYPE             => string; Optional special index type
     *
     * COLUMNS is an associative array keyed by the uppercase column name
     * The value of each COLUMNS array element is an associative array
     * with the following keys:
     *
     * NAME             => string; The column name
     * SIZE             => int|null; Length of index column (always null if index is unique)
     * POSITION         => int; Position in index
     *
     * @var array
     */
    protected $_indexes = [];

    /**
     * Foreign key descriptions for a table
     *
     * Is an associative array keyed by the uppercase foreign key name
     * The value of each array element is an associative array
     * with the following keys:
     *
     * FK_NAME          => string; The foreign key name
     * COLUMN_NAME      => string; The column name in table
     * REF_TABLE_NAME   => string; Reference table name
     * REF_COLUMN_NAME  => string; Reference table column name
     * ON_DELETE        => string; Integrity Actions, default NO ACTION
     * ON_UPDATE        => string; Integrity Actions, default NO ACTION
     *
     * Valid Integrity Actions:
     * CASCADE | SET NULL | NONE | RESTRICT | SET DEFAULT
     *
     * @var array
     */
    protected $_foreignKeys = [];

    /**
     * Additional table options
     *
     * @var array
     */
    protected $_options = ['type' => 'INNODB', 'charset' => 'utf8', 'collate' => 'utf8_general_ci'];

    /**
     * Set table name
     *
     * @param string $name
     * @return $this
     */
    public function setName($name)
    {
        $this->_tableName = $name;
        if ($this->_tableComment === null) {
            $this->_tableComment = $name;
        }
        return $this;
    }

    /**
     * Set schema name
     *
     * @param string $name
     * @return $this
     */
    public function setSchema($name)
    {
        $this->_schemaName = $name;
        return $this;
    }

    /**
     * Set comment for table
     *
     * @param string $comment
     * @return $this
     */
    public function setComment($comment)
    {
        $this->_tableComment = $comment;
        return $this;
    }

    /**
     * Retrieve name of table
     *
     * @return string
     * @throws \Zend_Db_Exception
     */
    public function getName()
    {
        if ($this->_tableName === null) {
            throw new \Zend_Db_Exception('Table name is not defined');
        }
        return $this->_tableName;
    }

    /**
     * Get schema name
     *
     * @return string|null
     */
    public function getSchema()
    {
        return $this->_schemaName;
    }

    /**
     * Return comment for table
     *
     * @return string
     */
    public function getComment()
    {
        return $this->_tableComment;
    }

    /**
     * Adds column to table.
     *
     * $options contains additional options for columns. Supported values are:
     * - 'unsigned', for number types only. Default: FALSE.
     * - 'precision', for numeric and decimal only. Default: taken from $size, if not set there then 0.
     * - 'scale', for numeric and decimal only. Default: taken from $size, if not set there then 10.
     * - 'default'. Default: not set.
     * - 'nullable'. Default: TRUE.
     * - 'primary', add column to primary index. Default: do not add.
     * - 'primary_position', only for column in primary index. Default: count of primary columns + 1.
     * - 'identity' or 'auto_increment'. Default: FALSE.
     *
     * @param string $name the column name
     * @param string $type the column data type
     * @param string|int|array $size the column length
     * @param array $options array of additional options
     * @param string $comment column description
     * @return $this
     * @throws \Zend_Db_Exception
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     * @SuppressWarnings(PHPMD.NPathComplexity)
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    public function addColumn($name, $type, $size = null, $options = [], $comment = null)
    {
        $position = count($this->_columns);
        $default = false;
        $nullable = true;
        $length = null;
        $scale = null;
        $precision = null;
        $unsigned = false;
        $primary = false;
        $primaryPosition = 0;
        $identity = false;

        // Prepare different properties
        switch ($type) {
            case self::TYPE_BOOLEAN:
                break;

            case self::TYPE_SMALLINT:
            case self::TYPE_INTEGER:
            case self::TYPE_BIGINT:
                if (!empty($options['unsigned'])) {
                    $unsigned = true;
                }

                break;

            case self::TYPE_FLOAT:
                if (!empty($options['unsigned'])) {
                    $unsigned = true;
                }
                break;

            case self::TYPE_DECIMAL:
            case self::TYPE_NUMERIC:
                $match = [];
                $scale = 0;
                $precision = 10;
                // parse size value
                if (is_array($size)) {
                    if (count($size) == 2) {
                        $size = array_values($size);
                        $precision = $size[0];
                        $scale = $size[1];
                    }
                } elseif (preg_match('#^(\d+),(\d+)$#', $size, $match)) {
                    $precision = $match[1];
                    $scale = $match[2];
                }
                // check options
                if (isset($options['precision'])) {
                    $precision = $options['precision'];
                }

                if (isset($options['scale'])) {
                    $scale = $options['scale'];
                }

                if (!empty($options['unsigned'])) {
                    $unsigned = true;
                }
                break;
            case self::TYPE_DATE:
            case self::TYPE_DATETIME:
            case self::TYPE_TIMESTAMP:
                break;
            case self::TYPE_TEXT:
            case self::TYPE_BLOB:
            case self::TYPE_VARBINARY:
                $length = $size;
                break;
            default:
                throw new \Zend_Db_Exception('Invalid column data type "' . $type . '"');
        }

        if (array_key_exists('default', $options)) {
            $default = $options['default'];
        }
        if (array_key_exists('nullable', $options)) {
            $nullable = (bool)$options['nullable'];
        }
        if (!empty($options['primary'])) {
            $primary = true;
            if (isset($options['primary_position'])) {
                $primaryPosition = (int)$options['primary_position'];
            } else {
                $primaryPosition = 0;
                foreach ($this->_columns as $v) {
                    if ($v['PRIMARY']) {
                        $primaryPosition++;
                    }
                }
            }
        }
        if (!empty($options['identity']) || !empty($options['auto_increment'])) {
            $identity = true;
        }

        if ($comment === null) {
            $comment = ucfirst($name);
        }

        $upperName = strtoupper($name);
        $this->_columns[$upperName] = [
            'COLUMN_NAME' => $name,
            'COLUMN_TYPE' => $type,
            'COLUMN_POSITION' => $position,
            'DATA_TYPE' => $type,
            'DEFAULT' => $default,
            'NULLABLE' => $nullable,
            'LENGTH' => $length,
            'SCALE' => $scale,
            'PRECISION' => $precision,
            'UNSIGNED' => $unsigned,
            'PRIMARY' => $primary,
            'PRIMARY_POSITION' => $primaryPosition,
            'IDENTITY' => $identity,
            'COMMENT' => $comment,
        ];

        return $this;
    }

    /**
     * Add Foreign Key to table
     *
     * @param string $fkName        the foreign key name
     * @param string $column        the foreign key column name
     * @param string $refTable      the reference table name
     * @param string $refColumn     the reference table column name
     * @param string $onDelete      the action on delete row
     * @return $this
     * @throws \Zend_Db_Exception
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     */
    public function addForeignKey($fkName, $column, $refTable, $refColumn, $onDelete = null)
    {
        $upperName = strtoupper($fkName);

        // validate column name
        if (!isset($this->_columns[strtoupper($column)])) {
            throw new \Zend_Db_Exception('Undefined column "' . $column . '"');
        }

        switch ($onDelete) {
            case self::ACTION_CASCADE:
            case self::ACTION_RESTRICT:
            case self::ACTION_SET_DEFAULT:
            case self::ACTION_SET_NULL:
                break;
            default:
                $onDelete = self::ACTION_NO_ACTION;
        }

        $this->_foreignKeys[$upperName] = [
            'FK_NAME' => $fkName,
            'COLUMN_NAME' => $column,
            'REF_TABLE_NAME' => $refTable,
            'REF_COLUMN_NAME' => $refColumn,
            'ON_DELETE' => $onDelete
        ];

        return $this;
    }

    /**
     * Add index to table
     *
     * @param string $indexName the index name
     * @param array|string $fields array of columns or column string
     * @param array $options array of additional options
     * @return $this
     * @throws \Zend_Db_Exception
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     */
    public function addIndex($indexName, $fields, $options = [])
    {
        $idxType = AdapterInterface::INDEX_TYPE_INDEX;
        $position = 0;
        $columns = [];
        if (!is_array($fields)) {
            $fields = [$fields];
        }

        foreach ($fields as $columnData) {
            $columnSize = null;
            $columnPos = $position;
            if (is_string($columnData)) {
                $columnName = $columnData;
            } elseif (is_array($columnData)) {
                if (!isset($columnData['name'])) {
                    throw new \Zend_Db_Exception('Invalid index column data');
                }

                $columnName = $columnData['name'];
                if (!empty($columnData['size'])) {
                    $columnSize = (int)$columnData['size'];
                }
                if (!empty($columnData['position'])) {
                    $columnPos = (int)$columnData['position'];
                }
            } else {
                continue;
            }

            $columns[strtoupper(
                $columnName
            )] = [
                'NAME' => $columnName,
                'SIZE' => $columnSize,
                'POSITION' => $columnPos,
            ];

            $position++;
        }

        if (empty($columns)) {
            throw new \Zend_Db_Exception('Columns for index are not defined');
        }

        if (!empty($options['type'])) {
            $idxType = $options['type'];
        }

        $this->_indexes[strtoupper(
            $indexName
        )] = [
            'INDEX_NAME' => $indexName,
            'COLUMNS' => $this->_normalizeIndexColumnPosition($columns),
            'TYPE' => $idxType,
        ];

        return $this;
    }

    /**
     * Retrieve array of table columns
     *
     * @param bool $normalized
     * @see $this->_columns
     * @return array
     */
    public function getColumns($normalized = true)
    {
        if ($normalized) {
            return $this->_normalizeColumnPosition($this->_columns);
        }
        return $this->_columns;
    }

    /**
     * Set column, formatted according to DDL Table format, into columns structure
     *
     * @param array $column
     * @see $this->_columns
     * @return $this
     */
    public function setColumn($column)
    {
        $upperName = strtoupper($column['COLUMN_NAME']);
        $this->_columns[$upperName] = $column;
        return $this;
    }

    /**
     * Retrieve array of table indexes
     *
     * @see $this->_indexes
     * @return array
     */
    public function getIndexes()
    {
        return $this->_indexes;
    }

    /**
     * Retrieve array of table foreign keys
     *
     * @see $this->_foreignKeys
     * @return array
     */
    public function getForeignKeys()
    {
        return $this->_foreignKeys;
    }

    /**
     * Set table option
     *
     * @param string $key
     * @param string $value
     * @return $this
     */
    public function setOption($key, $value)
    {
        $this->_options[$key] = $value;
        return $this;
    }

    /**
     * Retrieve table option value by option name
     * Return null if option does not exits
     *
     * @param string $key
     * @return null|string
     */
    public function getOption($key)
    {
        if (!isset($this->_options[$key])) {
            return null;
        }
        return $this->_options[$key];
    }

    /**
     * Retrieve array of table options
     *
     * @return array
     */
    public function getOptions()
    {
        return $this->_options;
    }

    /**
     * Index column position comparison function
     *
     * @param array $a
     * @param array $b
     * @return int
     */
    protected function _sortIndexColumnPosition($a, $b)
    {
        return $a['POSITION'] - $b['POSITION'];
    }

    /**
     * table column position comparison function
     *
     * @param array $a
     * @param array $b
     * @return int
     */
    protected function _sortColumnPosition($a, $b)
    {
        return $a['COLUMN_POSITION'] - $b['COLUMN_POSITION'];
    }

    /**
     * Normalize positon of index columns array
     *
     * @param array $columns
     * @return array
     */
    protected function _normalizeIndexColumnPosition($columns)
    {
        uasort($columns, [$this, '_sortIndexColumnPosition']);
        $position = 0;
        foreach (array_keys($columns) as $columnId) {
            $columns[$columnId]['POSITION'] = $position;
            $position++;
        }
        return $columns;
    }

    /**
     * Normalize positon of table columns array
     *
     * @param array $columns
     * @return array
     */
    protected function _normalizeColumnPosition($columns)
    {
        uasort($columns, [$this, '_sortColumnPosition']);
        $position = 0;
        foreach (array_keys($columns) as $columnId) {
            $columns[$columnId]['COLUMN_POSITION'] = $position;
            $position++;
        }
        return $columns;
    }
}

¿Significa esto que no hay ninguna disposición para agregar el campo de tipo "VARCHAR" en ninguna tabla en Magento 2?

Bueno, entonces cualquiera puede sugerir, ¿cómo anular este archivo para permitir que el campo de tipo "VARCHAR" se agregue y actualice con scripts de configuración?

Si estás usando:

->addColumn(
    'your_column',
    \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
    55,
    ['nullable' => false, 'default' => '0'],
    'Demo'
)

Se volverá una columna que su dabase una columna: your_column, tipo varchar(55), NOT NULL,Default 0

Si su columna tiene más 255 caracteres, necesita usar:

  ->addColumn(
    'your_column',
    \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
    '2M',
    ['nullable' => false, 'default' => '0'],
    'Demo'
)

Devolver una columna: nombre your_column, tipo mediumtext, NOT NULL,Default 0

no hay una palabra clave llamada "VARCHAR" si desea crear un campo con varchar necesita usar "TEXT" con longitud si no se pasa la longitud, entonces se considerará como texto archivado

$columns = [
                 'custom_sku' => [
                  'type' => Table::TYPE_TEXT,
                  'nullable' => false,
                  'LENGTH' =>255,
                  'comment' => 'custom sku',
               ],
      ];

o

->addColumn(
        'summary',
        Table::TYPE_TEXT,
        255,
        ['nullable' => false, 'default' => '', 'LENGTH' =>255],
        'Summary'
    )

si funciona, acepte la respuesta, por lo que se usará completa para otros

Cómo crear una nueva columna en el enlace de la tabla de base de datos magento2

Me ha funcionado.