add presence column to db and attribute to contactchat

Author: Wahid Nasri

lib/abstraction/models/ContactChat.dart

@@ -1,28 +1,34 @@
 import 'dart:convert';
 
+import 'package:flutter/foundation.dart';
+import 'package:flutter_mqtt/abstraction/models/enums/PresenceType.dart';
+
 class ContactChat {
   String firstName;
   String lastName;
   String id;
   String? avatar;
   String roomId;
+  PresenceType? presence;
   bool? isGroup;
   ContactChat(
       {required this.firstName,
       required this.lastName,
       required this.id,
       required this.avatar,
       required this.roomId,
-      required this.isGroup});
+      required this.isGroup,
+      this.presence});
 
   Map<String, dynamic> toMap() {
     return {
       'firstName': firstName,
-      'lastName':lastName,
+      'lastName': lastName,
       'id': id,
       'avatar': avatar,
       'roomId': roomId,
       'isGroup': isGroup,
+      'presence': presence,
     };
   }
 
@@ -33,6 +39,9 @@ class ContactChat {
       id: map['id'],
       avatar: map['avatar'],
       roomId: map['roomId'],
+      presence: map['presence'] == null ? null :  PresenceType.values
+          .where((e) => describeEnum(e) == map['presence'])
+          .first,
       isGroup: map['isGroup'] != null && map['isGroup'] == true,
     );
   }

lib/db/dao/message_dao.dart

@@ -81,7 +81,7 @@ class MessageDao extends DatabaseAccessor<MyDatabase> with _$MessageDaoMixin {
   // then, in the database class:
   Stream<List<ExtendedDbContact>> getConversations() {
     return customSelect(
-      'SELECT c.id, c.first_name, c.last_name, c.avatar, c.room_id, c.is_group, m.mtype as message_type, m.mid as message_id, m.text as message_text, m.moriginality as message_originality, m.send_time '
+      'SELECT c.id, c.first_name, c.last_name, c.avatar, c.room_id, c.is_group, c.presence presence, m.mtype as message_type, m.mid as message_id, m.text as message_text, m.moriginality as message_originality, m.send_time '
       'FROM (select id as mid, type as mtype, from_id as mfrom_id, originality as moriginality, room_id as mroom_id, text, send_time from messages order by send_time desc) m JOIN contacts c on c.room_id = m.mroom_id '
       'GROUP BY room_id ORDER BY send_time DESC',
       readsFrom: {

lib/db/tables/ContactTable.dart

@@ -9,6 +9,7 @@ class Contacts extends Table {
   //TextColumn get isGroup => text()();
   TextColumn get avatar => text().nullable()();
   BoolColumn get isGroup => boolean().named("is_group")();
+  TextColumn get presence => text().nullable()();
   @override
   Set<Column> get primaryKey => {id};
 }

lib/db/tables/ExtendedDbContact.dart

@@ -1,9 +1,13 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter_mqtt/abstraction/models/enums/PresenceType.dart';
+
 class ExtendedDbContact {
   final String id;
   final String first_name;
   final String last_name;
   final String? avatar;
   final String room_id;
+  final PresenceType? presence;
   final String message_type;
   final String message_id;
   final String message_text;
@@ -22,7 +26,8 @@ class ExtendedDbContact {
         required this.message_text,
       required this.message_originality,
       required this.send_time,
-      required this.is_group});
+      required this.is_group,
+        this.presence});
 
   factory ExtendedDbContact.fromJson(Map<String, dynamic> json) {
     return ExtendedDbContact(
@@ -37,6 +42,9 @@ class ExtendedDbContact {
       message_originality: json["message_originality"],
       send_time: int.parse(json["send_time"].toString()),
       is_group: json["is_group"] == 1,
+      presence: json['presence'] == null ? null :  PresenceType.values
+          .where((e) => describeEnum(e) == json['presence'])
+          .first,
     );
   }
 
@@ -53,6 +61,7 @@ class ExtendedDbContact {
       "message_originality": this.message_originality,
       "send_time": this.send_time,
       "is_group": this.is_group,
+      "presence": this.presence
     };
   }
 //