From 41e0e0ec64d5de4e385c37f37908d7783ce0b36a Mon Sep 17 00:00:00 2001
From: Maximilian Betz <Maximilian.Betz@awi.de>
Date: Wed, 19 Jan 2022 12:59:33 +0100
Subject: [PATCH] added singleton element for local event storage
---
README.md | 3 +-
lib/data_model.dart | 48 +++++++++++----
lib/main.dart | 54 +++++++++--------
pubspec.lock | 139 ++++++++++++++++++++++++++++++++++++++++++++
pubspec.yaml | 2 +
5 files changed, 207 insertions(+), 39 deletions(-)
diff --git a/README.md b/README.md
index c513fd0..ab870c5 100644
--- a/README.md
+++ b/README.md
@@ -11,4 +11,5 @@ A cross plattform project for android and ios to log events offline everywhere a
## Questions:
-- How to store not uploaded events locally? Dumping jsons to a file?
+- How to store not uploaded events locally? Dumping jsons to a file?, ObjectBox, SharedPreferences,
+
diff --git a/lib/data_model.dart b/lib/data_model.dart
index 47d11a5..c690bf1 100644
--- a/lib/data_model.dart
+++ b/lib/data_model.dart
@@ -1,4 +1,4 @@
-
+import 'package:shared_preferences/shared_preferences.dart';
class Event{
int id;
@@ -8,14 +8,40 @@ class Event{
String description;
String status;
- Event({
- required this.id,
- required this.urn,
- required this.label,
- required this.type,
- required this.description,
- required this.status
- });
+ Event(
+ this.id,
+ this.urn,
+ this.label,
+ this.type,
+ this.description,
+ this.status
+ );
+
+ factory Event.fromJson(Map<String, dynamic> parsedJson){
+ return Event( parsedJson['id'] as int,
+ parsedJson['urn'] as String,
+ parsedJson['label'] as String,
+ parsedJson['type'] as String,
+ parsedJson['description'] as String,
+ parsedJson['status'] as String );
+ }
+
+ @override
+ String toString(){
+ return '{ ${this.id}, ${this.urn}, ${this.label}, ${this.type}, ${this.description}, ${this.status} }';
+ }
+}
+
+abstract class EventStoreBase{
+ List<Event> store = [];
+
+ void setStore(List<Event> st){
+ store = st;
+ }
+
+ void reset(){
+ store = [];
+ }
}
class EventType{
@@ -26,4 +52,6 @@ class EventType{
required this.name,
required this.id
});
-}
\ No newline at end of file
+}
+
+
diff --git a/lib/main.dart b/lib/main.dart
index f4401a0..754cbd5 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -2,7 +2,30 @@ import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'data_model.dart';
+
+class EventStoreInstance extends EventStoreBase{
+ static final EventStoreInstance _instance = EventStoreInstance._internal();
+
+ factory EventStoreInstance(){
+ return _instance;
+ }
+
+ EventStoreInstance._internal(){
+ store = [];
+ }
+
+}
+
void main() {
+
+ //Add some dummy events to eventstore
+ EventStoreInstance events = EventStoreInstance();
+ events.store.add(Event.fromJson({'id': 8311, 'urn':'station:neumayer_iii:awi_snow_sampler_1', 'label':'SML_KO21_SC01', 'type':'Deployment', 'description':'Remi tool Tag1 1 Traverse', 'status':'PENDING' }));
+ events.store.add(Event.fromJson({'id': 8311, 'urn':'station:neumayer_iii:awi_snow_sampler_1', 'label':'SML_KO21_SC01', 'type':'Deployment', 'description':'Remi tool Tag1 1 Traverse', 'status':'PENDING' }));
+ events.store.add(Event.fromJson({'id': 8311, 'urn':'station:neumayer_iii:awi_snow_sampler_1', 'label':'SML_KO21_SC01', 'type':'Deployment', 'description':'Remi tool Tag1 1 Traverse', 'status':'PENDING' }));
+ events.store.add(Event.fromJson({'id': 8311, 'urn':'station:neumayer_iii:awi_snow_sampler_1', 'label':'SML_KO21_SC01', 'type':'Deployment', 'description':'Remi tool Tag1 1 Traverse', 'status':'PENDING' }));
+
+
runApp(MaterialApp(
title: 'Mobile Event Log',
theme: ThemeData(
@@ -82,36 +105,11 @@ class AddEvent extends StatelessWidget {
}
class ViewEvents extends StatelessWidget {
- // Add some dummy events:
- List<Event> events = []
- ..add(Event(
- id: 8311,
- urn: 'station:neumayer_iii:awi_snow_sampler_1',
- label: 'SML_KO21_SC01',
- type: 'Deployment',
- description: 'Remi tool Tag1 1 Traverse',
- status: 'PENDING'))
- ..add(Event(
- id: 8311,
- urn: 'station:neumayer_iii:awi_snow_sampler_1',
- label: 'SML_KO21_SC01',
- type: 'Deployment',
- description: 'Remi tool Tag1 1 Traverse',
- status: 'PENDING'))
- ..add(Event(
- id: 8311,
- urn: 'station:neumayer_iii:awi_snow_sampler_1',
- label: 'SML_KO21_SC01',
- type: 'Deployment',
- description: 'Remi tool Tag1 1 Traverse',
- status: 'PENDING'));
-
- //for (var i = 0; i<100; i++){
- // events.add(Event(id: i, urn: 'station:neumayer_iii:awi_snow_sampler_1', label: 'SML_KO21_SC01', type: 'Deployment', description: 'Remi tool Tag1 1 Traverse', status: 'PENDING'));
- //}
@override
Widget build(BuildContext context) {
+ // Get singleton to access locally stored events:
+ final EventStoreInstance events = EventStoreInstance();
return Scaffold(
appBar: AppBar(
title: const Text("View Added Events"),
@@ -160,7 +158,7 @@ class ViewEvents extends StatelessWidget {
),
],
rows: <DataRow>[
- for (var event in events)
+ for (var event in events.store)
DataRow(
cells: <DataCell>[
DataCell(Text(event.id.toString())),
diff --git a/pubspec.lock b/pubspec.lock
index 306911b..b87e8a0 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -57,6 +57,20 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "1.2.0"
+ ffi:
+ dependency: transitive
+ description:
+ name: ffi
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.1.2"
+ file:
+ dependency: transitive
+ description:
+ name: file
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "6.1.2"
flutter:
dependency: "direct main"
description: flutter
@@ -74,6 +88,18 @@ packages:
description: flutter
source: sdk
version: "0.0.0"
+ flutter_web_plugins:
+ dependency: transitive
+ description: flutter
+ source: sdk
+ version: "0.0.0"
+ js:
+ dependency: transitive
+ description:
+ name: js
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.6.3"
lints:
dependency: transitive
description:
@@ -102,6 +128,104 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "1.8.0"
+ path_provider_linux:
+ dependency: transitive
+ description:
+ name: path_provider_linux
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.5"
+ path_provider_platform_interface:
+ dependency: transitive
+ description:
+ name: path_provider_platform_interface
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.3"
+ path_provider_windows:
+ dependency: transitive
+ description:
+ name: path_provider_windows
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.5"
+ platform:
+ dependency: transitive
+ description:
+ name: platform
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "3.1.0"
+ plugin_platform_interface:
+ dependency: transitive
+ description:
+ name: plugin_platform_interface
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.2"
+ process:
+ dependency: transitive
+ description:
+ name: process
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "4.2.4"
+ shared_preferences:
+ dependency: "direct main"
+ description:
+ name: shared_preferences
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.12"
+ shared_preferences_android:
+ dependency: transitive
+ description:
+ name: shared_preferences_android
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.10"
+ shared_preferences_ios:
+ dependency: transitive
+ description:
+ name: shared_preferences_ios
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.9"
+ shared_preferences_linux:
+ dependency: transitive
+ description:
+ name: shared_preferences_linux
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.4"
+ shared_preferences_macos:
+ dependency: transitive
+ description:
+ name: shared_preferences_macos
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.2"
+ shared_preferences_platform_interface:
+ dependency: transitive
+ description:
+ name: shared_preferences_platform_interface
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.0"
+ shared_preferences_web:
+ dependency: transitive
+ description:
+ name: shared_preferences_web
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.3"
+ shared_preferences_windows:
+ dependency: transitive
+ description:
+ name: shared_preferences_windows
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.4"
sky_engine:
dependency: transitive
description: flutter
@@ -163,5 +287,20 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "2.1.1"
+ win32:
+ dependency: transitive
+ description:
+ name: win32
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.3.6"
+ xdg_directories:
+ dependency: transitive
+ description:
+ name: xdg_directories
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.2.0"
sdks:
dart: ">=2.15.1 <3.0.0"
+ flutter: ">=2.5.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 345d44b..e2f48a4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -30,6 +30,8 @@ dependencies:
flutter:
sdk: flutter
+ shared_preferences: ^2.0.12
+
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
--
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