Bug fix#1353 (quasarframework#1376)

Bug fix quasarframework#1353

Author: wedog

dev/components/form/datetime.vue

@@ -189,7 +189,7 @@ export default {
   data () {
     return {
       // model: '2016-09-18T10:45:00.000Z',
-      model: undefined,
+      model: 0,
       defaultSelection: '2016-09-18T10:45:00.000Z',
 
       format: 'MMMM D, YYYY [at] h:mm [[]a[\\]]',

src/components/datetime/QDatetime.js

@@ -48,7 +48,7 @@ export default {
       if (this.displayValue) {
         return this.displayValue
       }
-      if (!this.value) {
+      if (this.value !== 0 && !this.value) {
         return this.placeholder || ''
       }
 
@@ -124,7 +124,7 @@ export default {
       }
     },
     __setModel (val = this.value) {
-      this.model = val
+      this.model = val === 0 || val
         ? clone(val)
         : this.defaultSelection
     },

src/components/datetime/datetime-mixin.js

@@ -12,7 +12,7 @@ export default {
   computed: {
     model: {
       get () {
-        let date = this.value
+        let date = this.value === 0 || this.value
           ? new Date(this.value)
           : (this.defaultSelection ? new Date(this.defaultSelection) : startOfDate(new Date(), 'day'))
 

src/utils/date.js

@@ -501,7 +501,7 @@ export const formatter = {
 }
 
 export function formatDate (val, mask = 'YYYY-MM-DDTHH:mm:ss.SSSZ') {
-  if (!val) {
+  if (val !== 0 && !val) {
     return
   }
 
@@ -516,3 +516,8 @@ export function formatDate (val, mask = 'YYYY-MM-DDTHH:mm:ss.SSSZ') {
       : text.split('\\]').join(']')
   })
 }
+
+export function matchFormat (format) {
+  format = format || ''
+  return format.match(token)
+}