@sqb/builder/esm/query/query.js

Extensible multi-dialect SQL query builder written with TypeScript

import { EventEmitter } from 'events';
import flattenText from 'putil-flattentext';
import merge from 'putil-merge';
import { Serializable } from '../serializable.js';
import { SerializeContext } from '../serialize-context.js';
export class Query extends Serializable {
    _params;
    constructor() {
        super();
        EventEmitter.call(this);
    }
    /**
     * Generates Sql script
     */
    generate(options) {
        const ctx = new SerializeContext(options);
        if (this._params)
            ctx.params = { ...ctx.params, ...this._params };
        ctx.serializeHooks = this.listeners('serialize');
        /* generate output */
        const sql = this._serialize(ctx);
        return {
            sql: flattenText(sql, { noWrap: !ctx.prettyPrint }),
            params: ctx.preparedParams,
            paramOptions: ctx.paramOptions,
            returningFields: ctx.returningFields,
        };
    }
    values(obj) {
        if (typeof obj !== 'object' || Array.isArray(obj))
            throw new TypeError('Invalid argument');
        this._params = obj;
        return this;
    }
}
merge(Query.prototype, EventEmitter.prototype, { descriptor: true });