lite-ui-sql-parser/lib/update.js

simple node sql parser

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "./tables", "./expr", "./util"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("./tables"), require("./expr"), require("./util"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.tables, global.expr, global.util);
    global.update = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _tables, _expr, _util) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.updateToSQL = updateToSQL;

  /**
   * @param {Array} sets
   * @return {string}
   */
  function setToSQL(sets) {
    if (!sets || sets.length === 0) return '';
    const clauses = [];

    for (const set of sets) {
      let str = '';
      const {
        table,
        column,
        value
      } = set;
      str = [table, column].filter(_util.hasVal).map(info => (0, _util.identifierToSql)(info)).join('.');
      if (value) str = `${str} = ${(0, _expr.exprToSQL)(value)}`;
      clauses.push(str);
    }

    return clauses.join(', ');
  }

  function updateToSQL(stmt) {
    const {
      table,
      set,
      where,
      returning
    } = stmt;
    const clauses = ['UPDATE', (0, _tables.tablesToSQL)(table), (0, _util.commonOptionConnector)('SET', setToSQL, set), (0, _util.commonOptionConnector)('WHERE', _expr.exprToSQL, where), (0, _util.returningToSQL)(returning)];
    return clauses.filter(_util.hasVal).join(' ');
  }
});