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Cache the list of friends

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This commit is contained in:
Pierre HUBERT
2019-05-04 19:35:03 +02:00
parent 62125d7c3d
commit 67a6befc02
6 changed files with 100 additions and 12 deletions
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10
lib/helpers/database/database_contract.dart
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@ -45,4 +45,14 @@ abstract class ConversationsMessagesTableContract {
static const C_TIME_INSERT = "time_insert";
static const C_MESSAGE = "message";
static const C_IMAGE_URL = "image_url";
}
/// Friends table contract
abstract class FriendsListTableContract {
static const TABLE_NAME = "friends";
static const C_ID = BaseTableContract.C_ID;
static const C_ACCEPTED = "accepted";
static const C_LAST_ACTIVE = "last_active";
static const C_FOLLOWING = "following";
static const C_CAN_POST_TEXTS = "can_post_texts";
}

13
lib/helpers/database/database_helper.dart
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@ -45,6 +45,10 @@ abstract class DatabaseHelper {
await db.execute(
"DROP TABLE IF EXISTS ${ConversationsMessagesTableContract.TABLE_NAME}");
// Drop friends list table
await db.execute(
"DROP TABLE IF EXISTS ${FriendsListTableContract.TABLE_NAME}");
// Initialize database again
await _initializeDatabase(db, newVersion);
}
@ -82,5 +86,14 @@ abstract class DatabaseHelper {
"${ConversationsMessagesTableContract.C_MESSAGE} TEXT, "
"${ConversationsMessagesTableContract.C_IMAGE_URL} TEXT"
")");
// Friends list table
await db.execute("CREATE TABLE ${FriendsListTableContract.TABLE_NAME} ("
"${FriendsListTableContract.C_ID} INTEGER PRIMARY KEY, "
"${FriendsListTableContract.C_ACCEPTED} INTEGER, "
"${FriendsListTableContract.C_LAST_ACTIVE} INTEGER, "
"${FriendsListTableContract.C_FOLLOWING} INTEGER, "
"${FriendsListTableContract.C_CAN_POST_TEXTS} INTEGER"
")");
}
}

15
lib/helpers/database/friends_database_helper.dart Normal file
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@ -0,0 +1,15 @@
import 'package:comunic/helpers/database/database_contract.dart';
import 'package:comunic/helpers/database/model_database_helper.dart';
import 'package:comunic/models/friend.dart';
/// Friends database helper
///
/// @author Pierre HUBERT
class FriendsDatabaseHelper extends ModelDatabaseHelper<Friend> {
@override
Friend initializeFromMap(Map<String, dynamic> map) => Friend.fromMap(map);
@override
String tableName() => FriendsListTableContract.TABLE_NAME;
}

23
lib/helpers/friends_helper.dart
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@ -1,17 +1,22 @@
import 'package:comunic/helpers/database/friends_database_helper.dart';
import 'package:comunic/lists/friends_list.dart';
import 'package:comunic/models/api_request.dart';
import 'package:comunic/models/friend.dart';
import 'package:meta/meta.dart';
/// Friends helper
///
/// @author Pierre HUBERT
class FriendsHelper {
/// Get the list of friends of the user
final FriendsDatabaseHelper _friendsDatabaseHelper = FriendsDatabaseHelper();
/// Get the list of friends of the user from the server
///
/// Returns the list of friends in case of success, or null if an error
/// occurred
Future<FriendsList> downloadList() async {
Future<FriendsList> _downloadList() async {
final response = await APIRequest(
uri: "friends/getList",
needLogin: true,
@ -36,9 +41,23 @@ class FriendsHelper {
),
);
// Save the list of friends
_friendsDatabaseHelper.clearTable();
_friendsDatabaseHelper.insertAll(list);
return list;
}
/// Get the list, either from an online or an offline source
Future<FriendsList> getList({@required bool online}) async {
if(online)
return await _downloadList();
else
return FriendsList()..addAll(await _friendsDatabaseHelper.getAll());
}
/// Respond to friendship request
Future<bool> respondRequest(int friendID, bool accept) async {
final response = await APIRequest(