/
DateUtils.ts
230 lines (193 loc) · 7.32 KB
/
DateUtils.ts
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import { ColumnMetadata } from "../metadata/ColumnMetadata";
/**
* Provides utilities to transform hydrated and persisted data.
*/
export class DateUtils {
// -------------------------------------------------------------------------
// Public Static Methods
// -------------------------------------------------------------------------
/**
* Normalizes date object hydrated from the database.
*/
static normalizeHydratedDate(mixedDate: Date|string|undefined): Date|string|undefined {
if (!mixedDate)
return mixedDate;
return typeof mixedDate === "string" ? new Date(mixedDate) : mixedDate as Date;
}
/**
* Converts given value into date string in a "YYYY-MM-DD" format.
*/
static mixedDateToDateString(value: Date|any): string|any {
if (value instanceof Date)
return this.formatZerolessValue(value.getFullYear()) + "-" + this.formatZerolessValue(value.getMonth() + 1) + "-" + this.formatZerolessValue(value.getDate());
return value;
}
/**
* Converts given value into date object.
*/
static mixedDateToDate(mixedDate: Date|string, toUtc: boolean = false, useMilliseconds = true): Date {
let date = typeof mixedDate === "string" ? new Date(mixedDate) : mixedDate;
if (toUtc)
date = new Date(
date.getUTCFullYear(),
date.getUTCMonth(),
date.getUTCDate(),
date.getUTCHours(),
date.getUTCMinutes(),
date.getUTCSeconds(),
date.getUTCMilliseconds()
);
if (!useMilliseconds)
date.setUTCMilliseconds(0);
return date;
}
/**
* Converts given value into time string in a "HH:mm:ss" format.
*/
static mixedDateToTimeString(value: Date|any, skipSeconds: boolean = false): string|any {
if (value instanceof Date)
return this.formatZerolessValue(value.getHours()) +
":" + this.formatZerolessValue(value.getMinutes()) +
(!skipSeconds ? ":" + this.formatZerolessValue(value.getSeconds()) : "");
return value;
}
/**
* Converts given value into time string in a "HH:mm:ss" format.
*/
static mixedTimeToDate(value: Date|any): string|any {
if (typeof value === "string") {
const [hours, minutes, seconds] = value.split(":");
const date = new Date();
if (hours)
date.setHours(parseInt(hours));
if (minutes)
date.setMinutes(parseInt(minutes));
if (seconds)
date.setSeconds(parseInt(seconds));
return date;
}
return value;
}
/**
* Converts given string value with "-" separator into a "HH:mm:ss" format.
*/
static mixedTimeToString(value: string|any, skipSeconds: boolean = false): string|any {
value = value instanceof Date ? (value.getHours() + ":" + value.getMinutes() + (!skipSeconds ? ":" + value.getSeconds() : "")) : value;
if (typeof value === "string") {
return value.split(":")
.map(v => v.length === 1 ? "0" + v : v) // append zero at beginning if we have a first-zero-less number
.join(":");
}
return value;
}
/**
* Converts given value into datetime string in a "YYYY-MM-DD HH-mm-ss" format.
*/
static mixedDateToDatetimeString(value: Date|any, useMilliseconds?: boolean): string|any {
if (typeof value === "string") {
value = new Date(value);
}
if (value instanceof Date) {
let finalValue = this.formatZerolessValue(value.getFullYear()) + "-" +
this.formatZerolessValue(value.getMonth() + 1) + "-" +
this.formatZerolessValue(value.getDate()) + " " +
this.formatZerolessValue(value.getHours()) + ":" +
this.formatZerolessValue(value.getMinutes()) + ":" +
this.formatZerolessValue(value.getSeconds());
if (useMilliseconds)
finalValue += `.${this.formatMilliseconds(value.getMilliseconds())}`;
value = finalValue;
}
return value;
}
/**
* Converts given value into utc datetime string in a "YYYY-MM-DD HH-mm-ss.sss" format.
*/
static mixedDateToUtcDatetimeString(value: Date|any): string|any {
if (typeof value === "string") {
value = new Date(value);
}
if (value instanceof Date) {
return this.formatZerolessValue(value.getUTCFullYear()) + "-" +
this.formatZerolessValue(value.getUTCMonth() + 1) + "-" +
this.formatZerolessValue(value.getUTCDate()) + " " +
this.formatZerolessValue(value.getUTCHours()) + ":" +
this.formatZerolessValue(value.getUTCMinutes()) + ":" +
this.formatZerolessValue(value.getUTCSeconds()) + "." +
this.formatMilliseconds(value.getUTCMilliseconds());
}
return value;
}
/**
* Converts each item in the given array to string joined by "," separator.
*/
static simpleArrayToString(value: any[]|any): string[]|any {
if (Array.isArray(value)) {
return (value as any[])
.map(i => String(i))
.join(",");
}
return value;
}
/**
* Converts given string to simple array split by "," separator.
*/
static stringToSimpleArray(value: string|any): string|any {
if (value instanceof String || typeof value === "string") {
if (value.length > 0) {
return value.split(",");
} else {
return [];
}
}
return value;
}
static simpleJsonToString(value: any): string {
return JSON.stringify(value);
}
static stringToSimpleJson(value: any) {
try {
const simpleJSON = JSON.parse(value);
return (typeof simpleJSON === "object") ? simpleJSON : {};
} catch (err) {
return {};
}
}
static simpleEnumToString(value: any) {
return "" + value;
}
static stringToSimpleEnum(value: any, columnMetadata: ColumnMetadata) {
if (
columnMetadata.enum
&& !isNaN(value)
&& columnMetadata.enum.indexOf(parseInt(value)) >= 0
) {
// convert to number if that exists in poosible enum options
value = parseInt(value);
}
return value;
}
// -------------------------------------------------------------------------
// Private Static Methods
// -------------------------------------------------------------------------
/**
* Formats given number to "0x" format, e.g. if it is 1 then it will return "01".
*/
private static formatZerolessValue(value: number): string {
if (value < 10)
return "0" + value;
return String(value);
}
/**
* Formats given number to "0x" format, e.g. if it is 1 then it will return "01".
*/
private static formatMilliseconds(value: number): string {
if (value < 10) {
return "00" + value;
} else if (value < 100) {
return "0" + value;
} else {
return String(value);
}
}
}