DateTime doesn't update value of variable

[carstenbaumhoegger]

Bug Report

Ionic Info
Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.0.0-rc.10 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-alpha.7
   @angular-devkit/core       : 0.6.0
   @angular-devkit/schematics : 0.6.0
   @angular/cli               : 6.0.1
   @ionic/ng-toolkit          : not installed
   @ionic/schematics-angular  : 1.0.0-rc.10

Cordova:

   cordova (Cordova CLI) : not installed
   Cordova Platforms     : none

System:

   NodeJS : v10.4.1 (/usr/local/bin/node)
   npm    : 6.1.0
   OS     : macOS High Sierra
   Xcode  : Xcode 9.4.1 Build version 9F2000

Environment:

   ANDROID_HOME : not set

Describe the Bug
The DateTime element doesn't update the variable that it is connected with through two way binding. The variable just stays unchanged either undefined or with the pre-set value.

It seems as if one-way binding is used here although two-way binding is specified.

Steps to Reproduce
Steps to reproduce the behavior:

1. Checkout the Ionic conference app at the core-updatebranch
2. Click on About and change May 17, 2045 to something else
3. See that the underlying variable conferenceDate didn't change

Expected Behavior
The specified variable should be changed accordingly to the selected value in the view.

[brandyscarney]

Thanks for the issue! Confirmed this is an issue in alpha.9.

[adamdbradley]

Notes: Looks like it's a bug in ion-gesture for the picker controller, where a button click is being prevented. @manucorporat will be updating ion-gesture to be a pure ES module instead of a component, then we'll be able add onPress to fix this.

[manucorporat]

Fixes 8b35e37

[hcassar93]

DateTime now binds with ngModel for me.

But instead of getting an ISODateString from the binding I’m getting an object with seperate properties for day, month, year, etc depending on what display-format I choose. I don’t know what to do with?

Also if you select that first value from a column (such as 01 day of the month) the value for that property is returned as null (eg day property is null in the object).

Not sure if I’m doing something wrong, but somethings up.