Beginning FlutterFire

Aug 30 2022 · Dart 2.16, Flutter 3.0, Visual Studio Code 1.69

Part 3: Read & Write Data with the Cloud Firestore

14. Add & Update Data into the Firestore Database

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Previous episode: 13. Create the Activity Detail Screen Next episode: 15. Delete Data from the ListView

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In the Activity Detail screen, we need to add the code that saves an Activity into the Firestore database.

Future saveUser() async { 
  widget.activity.description = txtDescription.text; 
  widget.activity.day = txtDay.text; 
  widget.activity.beginTime = txtBeginTime.text; 
  widget.activity.endTime = txtEndTime.text; 
  if (galleryImage != null) { 
    widget.activity.imagePath = galleryImage?.path ?? ''; 
  } 
  final result = await helper.insertActivity(widget.activity); 
  return result; 
} 

onPressed: () { 
 saveUser(); 
 final route = MaterialPageRoute<dynamic>( 
     builder: (context) => const ActivitiesScreen()); 
 final Future push = Navigator.push(context, route); 
}, 

child: const Icon(Icons.add), 
          onPressed: () { 
            final activity = Activity('', '', '', '', '', ''); 
            final route = MaterialPageRoute<dynamic>( 
                builder: (context) => ActivityDetailScreen(activity)); 
            final Future push = Navigator.push(context, route); 
          }), 

onTap: () { 
  final route = MaterialPageRoute<dynamic>( 
      builder: (context) => ActivityScreen(activity)); 
  final Future push = Navigator.push(context, route); 
}, 

Future updateActivity(Activity activity, String id) async { 
    try { 
      await activities.doc(id).update(activity.toMap()); 
    } on Exception catch (e) { 
      print(e.toString()); 
    } 
  } 

if (widget.activity.id == null) { 
      await helper.insertActivity(widget.activity); 
    } 
    else { 
      await helper.updateActivity(widget.activity, widget.activity.id!); 
    }