CaseRow.js

CaseRow.js

import DateRep from "./DateRep";
import {  Prisma } from '@prisma/client'

function asInt(value) {
  const i = parseInt(value);
  if (isNaN(i)) {
    return 0;
  } else {
    return i;
  }
}

function asFloat(value) {
  try {
    const i = parseFloat(value);
    if (isNaN(i)) return null;
    return i
  } catch (err) {
    return null;
  }
}

function asDate(date) {
  const value = new DateRep(date);
  return value.invalid ? null : value.asDate();
}

export default class CaseRow {
  constructor(data) {
    Object.assign(this, data);
  }

  valueOf() {
    return ["Date_Published","UID","iso2","iso3","code3","FIPS","Province_State","Country_Region","Last_Update","Latitude","Longitude","Confirmed","Deaths","Recovered","Active","Incident_Rate","People_Tested","People_Hospitalized","Mortality_Rate","Testing_Rate","Hospitalization_Rate","Population"
    ].reduce((out, name) => {
      out[name] = this[name];
      return out;
    }, {});
  }
}

function defProps(myClass, names, inputFilter, start) {
  names.forEach((name) => {
    const localName = "_" + name;
    const propDef = {
      configurable: false,
      enumerable: true,
      get() {
        if (!(localName in this)) {
          this[localName] = start;
        }
        return this[localName];
      },
      set(value) {
        this[localName] = inputFilter(value);
      },
    };

    Object.defineProperty(myClass.prototype, name, propDef);
    Object.defineProperty(myClass.prototype, localName, {
      enumerable: false,
      writable: true,
    })
  })
}

defProps(CaseRow, [
  'Mortality_Rate', 'Active', 'Population', 'People_Tested', 'Confirmed', 'Deaths', 'UID', 'Recovered', 'People_Hospitalized'
], asInt, 0);

defProps(CaseRow,
  ['Date_Published', 'Last_Update'],
  asDate, null
)
defProps(CaseRow,
  ['Longitude', 'Latitude','Incident_Rate',  'Testing_Rate', 'Hospitalization_Rate'],
  asFloat, null
)
/*
toInt(row, 'Mortality_Rate', 'Incident_Rate', 'Active', 'Population', 'People_Tested', 'Confirmed', 'Deaths', 'UID', 'Recovered', 'People_Hospitalized');
    toDate(row, 'Date_Published', 'Last_Update');
    toFloat(row, 'Longitude', 'Latitude', 'Testing_Rate', 'Hospitalization_Rate');
 */