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feat(datepicker): do not replace value if input is no valid date

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This commit is contained in:
Sarah Vaupel 2019-08-28 11:27:55 +02:00
parent 8bdcc9254e
commit ecab0ac93c
1 changed files with 8 additions and 3 deletions
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11
frontend/src/utils/form/datepicker.js
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@ -26,21 +26,25 @@ const FORM_DATE_FORMAT_MOMENT = {
/**
* Takes a string representation of a date and a format string and parses the given date to a Date object.
* If the date string is not valid (i.e. cannot be parsed with the given format string), returns undefined.
* @param {*} dateStr string representation of a date
* @param {*} dateFormat format string of the date
*/
function parseDateWithFormat(dateStr, dateFormat) {
return moment(dateStr, dateFormat).toDate();
const parsedMomentDate = moment(dateStr, dateFormat);
if (parsedMomentDate.isValid()) return parsedMomentDate.toDate();
}
/**
* Takes a string representation of a date, an input ('previous') format and a desired output format and returns a reformatted date string.
* If the date string is not valid (i.e. cannot be parsed with the given input format string), returns the original date string;
* @param {*} dateStr string representation of a date (needs to be in format formatIn)
* @param {*} formatIn input format string
* @param {*} formatOut format string of the desired output date string
*/
function reformatDateString(dateStr, formatIn, formatOut) {
return moment(dateStr, formatIn).format(formatOut);
const parsedMomentDate = moment(dateStr, formatIn);
return parsedMomentDate.isValid() ? parsedMomentDate.format(formatOut) : dateStr;
}
const DATEPICKER_UTIL_SELECTOR = 'input[type="date"], input[type="time"], input[type="datetime-local"]';
@ -200,7 +204,8 @@ export class Datepicker {
const dp = this.datepickerInstance;
if (this._element.value) {
if (toFancy) {
dp.selectDate(parseDateWithFormat(this._element.value, FORM_DATE_FORMAT[this.elementType]));
const parsedDate = parseDateWithFormat(this._element.value, FORM_DATE_FORMAT[this.elementType]);
if (parsedDate) dp.selectDate();
} else {
this._element.value = this.unformat();
}