@sqb/builder/esm/sql-objects/returning-column.js

Extensible multi-dialect SQL query builder written with TypeScript

import { SerializationType } from '../enums.js';
import { BaseField } from './base-field.js';
const RETURNING_COLUMN_PATTERN = /^([a-zA-Z_]\w*) *(?:as)? *(\w+)?$/;
export class ReturningColumn extends BaseField {
    constructor(field) {
        super();
        const m = field.match(RETURNING_COLUMN_PATTERN);
        if (!m)
            throw new TypeError(`"${field}" does not match returning column format`);
        this._field = m[1];
        this._alias = m[2];
    }
    get _type() {
        return SerializationType.RETURNING_COLUMN;
    }
    _serialize(ctx) {
        const o = {
            field: this._field,
            alias: this._alias,
        };
        ctx.returningFields = ctx.returningFields || [];
        ctx.returningFields.push(o);
        return ctx.serialize(this._type, o, () => ctx.escapeReserved(o.field) +
            (o.alias ? ' as ' + ctx.escapeReserved(o.alias) : ''));
    }
}