Fix: parse unpadded yyyy-mm-dd date input regardless of locale (#13501)

src-ui/src/app/utils/ngb-date-parser-formatter.spec.ts

@@ -57,6 +57,19 @@ describe('LocalizedDateParserFormatter', () => {
     expect(val).toEqual({ day: 4, month: 5, year: 2023 })
   })
 
+  it('should parse yyyy-mm-dd input with unpadded month or day by locale', () => {
+    let val = dateParserFormatter.parse('2023-5-4')
+    expect(val).toEqual({ day: 4, month: 5, year: 2023 })
+
+    settingsService.setLanguage('de-de') // dd.mm.yyyy
+    val = dateParserFormatter.parse('2023-5-4')
+    expect(val).toEqual({ day: 4, month: 5, year: 2023 })
+
+    settingsService.setLanguage('tr-tr') // yyyy-mm-dd
+    val = dateParserFormatter.parse('2023-5-4')
+    expect(val).toEqual({ day: 4, month: 5, year: 2023 })
+  })
+
   it('should parse date struct to string by locale', () => {
     const dateStruct = {
       day: 4,

src-ui/src/app/utils/ngb-date-parser-formatter.ts

@@ -52,15 +52,11 @@ export class LocalizedDateParserFormatter extends NgbDateParserFormatter {
       let segments = value.split(this.separatorRegExp)
 
       // always accept strict yyyy*mm*dd format even if that's not the input format since we can be certain its not yyyy*dd*mm
-      if (
-        value.length == 10 &&
-        segments.length == 3 &&
-        segments[0].length == 4
-      ) {
+      if (segments.length == 3 && segments[0].length == 4) {
         return inputFormat
           .replace('yyyy', segments[0])
-          .replace('mm', segments[1])
-          .replace('dd', segments[2])
+          .replace('mm', segments[1].padStart(2, '0'))
+          .replace('dd', segments[2].padStart(2, '0'))
       } else {
         // otherwise pad & re-join without separator
         value = segments.map((segment) => segment.padStart(2, '0')).join('')