Method renameColumn

src/dialects/abstract/query-interface.js:526–550

* Rename a column * * @param {string} tableName Table name whose column to rename * @param {string} attrNameBefore Current column name * @param {string} attrNameAfter New column name * @param {object} [options] Query option * * @returns {Promise}

(tableName, attrNameBefore, attrNameAfter, options)

   * @returns {Promise}
   */
  async renameColumn(tableName, attrNameBefore, attrNameAfter, options) {
    options = options || {};
    const data = (await this.assertTableHasColumn(tableName, attrNameBefore, options))[attrNameBefore];

    const _options = {};

    _options[attrNameAfter] = {
      attribute: attrNameAfter,
      type: data.type,
      allowNull: data.allowNull,
      defaultValue: data.defaultValue
    };

    // fix: a not-null column cannot have null as default value
    if (data.defaultValue === null && !data.allowNull) {
      delete _options[attrNameAfter].defaultValue;
    }

    const sql = this.queryGenerator.renameColumnQuery(
      tableName,
      attrNameBefore,
      this.queryGenerator.attributesToSQL(_options)
    );
    return await this.sequelize.query(sql, options);
  }

  /**
   * Add an index to a column