@onurege3467/zerohelper/database/mysql/structures/methods/get.js

ZeroHelper is a versatile JavaScript library offering helper functions and database utilities for developers. It supports MongoDB, MySQL, SQLite, Redis, and PostgreSQL.

"use strict";

const get = require("lodash/get");
const errors = require("../errors/strings.js");

module.exports = async function (key, table = "default") {
  if (!key || typeof key !== "string")
    throw new TypeError(errors.key.replace("{received}", typeof key));

  let tables = await this.tables();
  if (!tables.includes(table)) return null;

  let keys = key.split("."),
    keys2 = key.split(".");
  if (keys.length > 1) {
    key = keys.shift();
  }
  let res = await this.query({
    sql: `SELECT value FROM \`${table}\` WHERE \`key_name\` = ?`,
    values: [key],
  });
  if (!res.length) return null;
  let value = null;
  if (res.length) {
    value = res[0].value;
    if (!isNaN(value)) {
      value = Number(value);
    }
    try {
      value = JSON.parse(value);
    } catch (e) {}
  }
  if (keys2.length > 1 && typeof value === "object") {
    value = get(value, keys.join("."));
    if (value == undefined) value = null;
  } else if (keys2.length > 1) {
    throw new ReferenceError(errors.targetNotObject.replace("{key}", key));
  }
  return value;
};