All files persondao.js

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const Dao = require("./dao.js");
 
module.exports = class PersonDao extends Dao {
  getAll(callback) {
    super.query("select navn, alder, adresse from person", [], callback);
  }
 
  getOne(id, callback) {
    super.query(
      "select navn, alder, adresse from person where id=?",
      [id],
      callback
    );
  }
 
  createOne(json, callback) {
    var val = [json.navn, json.adresse, json.alder];
    super.query(
      "insert into person (navn,adresse,alder) values (?,?,?)",
      val,
      callback
    );
  }
  
  //oppdatere en person (SQL update) 
  updateOne(json, id, callback) {
      var val =  [json.navn, json.adresse, json.alder, id];
      super.query(
          "UPDATE person SET navn = ?, adresse = ?, alder= ? WHERE id=?",
          val,
          callback
          );
  }
  
  //slette en person (SQL delete)
  deleteOne(id, callback) {
      super.query(
          "DELETE FROM person WHERE id=?",
          id,
          callback
          );
  }
};