Do some refactoring.

src/services/abstract/feed.cpp

@@ -18,6 +18,11 @@
 #include "services/abstract/feed.h"
 
 #include "definitions/definitions.h"
+#include "miscellaneous/application.h"
+#include "miscellaneous/databasefactory.h"
+#include "services/abstract/serviceroot.h"
+
+#include <QSqlQuery>
 
 
 Feed::Feed(RootItem *parent)
@@ -30,6 +35,36 @@ Feed::Feed(RootItem *parent)
 Feed::~Feed() {
 }
 
+QList<Message> Feed::undeletedMessages() const {
+  QList<Message> messages;
+  int account_id = getParentServiceRoot()->accountId();
+  QSqlDatabase database = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
+  QSqlQuery query_read_msg(database);
+
+  query_read_msg.setForwardOnly(true);
+  query_read_msg.prepare("SELECT * "
+                         "FROM Messages "
+                         "WHERE is_deleted = 0 AND is_pdeleted = 0 AND feed = :feed AND account_id = :account_id;");
+
+  query_read_msg.bindValue(QSL(":feed"), messageForeignKeyId());
+  query_read_msg.bindValue(QSL(":account_id"), account_id);
+
+  if (query_read_msg.exec()) {
+    while (query_read_msg.next()) {
+      bool decoded;
+      Message message = Message::fromSqlRecord(query_read_msg.record(), &decoded);
+
+      if (decoded) {
+        messages.append(message);
+      }
+
+      messages.append(message);
+    }
+  }
+
+  return messages;
+}
+
 QVariant Feed::data(int column, int role) const {
   switch (role) {
     case Qt::ForegroundRole:

src/services/abstract/feed.h

@@ -52,6 +52,8 @@ class Feed : public RootItem {
     explicit Feed(RootItem *parent = NULL);
     virtual ~Feed();
 
+    QList<Message> undeletedMessages() const;
+
     int countOfAllMessages() const;
     int countOfUnreadMessages() const;
 

src/services/owncloud/owncloudfeed.cpp

@@ -42,7 +42,7 @@ OwnCloudServiceRoot *OwnCloudFeed::serviceRoot() const {
 }
 
 int OwnCloudFeed::update() {
-  OwnCloudGetMessagesResponse headlines = serviceRoot()->network()->getMessages(customId());
+  OwnCloudGetMessagesResponse messages = serviceRoot()->network()->getMessages(customId());
 
   if (serviceRoot()->network()->lastError() != QNetworkReply::NoError) {
     setStatus(Feed::Error);

src/services/owncloud/owncloudserviceroot.cpp

@@ -55,7 +55,19 @@ bool OwnCloudServiceRoot::editViaGui() {
 }
 
 bool OwnCloudServiceRoot::deleteViaGui() {
-  return false;
+  QSqlDatabase connection = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
+  QSqlQuery query(connection);
+
+  query.setForwardOnly(true);
+  query.prepare(QSL("DELETE FROM OwnCloudAccounts WHERE id = :id;"));
+  query.bindValue(QSL(":id"), accountId());
+
+  if (query.exec()) {
+    return ServiceRoot::deleteViaGui();
+  }
+  else {
+    return false;
+  }
 }
 
 bool OwnCloudServiceRoot::supportsFeedAdding() const {

src/services/standard/standardfeed.cpp

@@ -120,35 +120,6 @@ bool StandardFeed::cleanMessages(bool clean_read_only) {
   return serviceRoot()->cleanFeeds(QList<Feed*>() << this, clean_read_only);
 }
 
-QList<Message> StandardFeed::undeletedMessages() const {
-  QList<Message> messages;
-
-  QSqlDatabase database = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
-  QSqlQuery query_read_msg(database);
-  query_read_msg.setForwardOnly(true);
-  query_read_msg.prepare("SELECT * "
-                         "FROM Messages "
-                         "WHERE is_deleted = 0 AND feed = :feed AND account_id = :account_id;");
-
-  query_read_msg.bindValue(QSL(":feed"), id());
-  query_read_msg.bindValue(QSL(":account_id"), serviceRoot()->accountId());
-
-  if (query_read_msg.exec()) {
-    while (query_read_msg.next()) {
-      bool decoded;
-      Message message = Message::fromSqlRecord(query_read_msg.record(), &decoded);
-
-      if (decoded) {
-        messages.append(message);
-      }
-
-      messages.append(message);
-    }
-  }
-
-  return messages;
-}
-
 QVariant StandardFeed::data(int column, int role) const {
   switch (role) {
     case Qt::ToolTipRole:

src/services/standard/standardfeed.h

@@ -70,8 +70,6 @@ class StandardFeed : public Feed {
     bool markAsReadUnread(ReadStatus status);
     bool cleanMessages(bool clean_read_only);
 
-    QList<Message> undeletedMessages() const;
-
     QVariant data(int column, int role) const;
 
     // Obtains data related to this feed.

src/services/tt-rss/ttrssfeed.cpp

@@ -189,36 +189,6 @@ int TtRssFeed::update() {
   return updateMessages(messages);
 }
 
-QList<Message> TtRssFeed::undeletedMessages() const {
-  QList<Message> messages;
-  int account_id = serviceRoot()->accountId();
-  QSqlDatabase database = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
-  QSqlQuery query_read_msg(database);
-
-  query_read_msg.setForwardOnly(true);
-  query_read_msg.prepare("SELECT * "
-                         "FROM Messages "
-                         "WHERE is_deleted = 0 AND is_pdeleted = 0 AND feed = :feed AND account_id = :account_id;");
-
-  query_read_msg.bindValue(QSL(":feed"), customId());
-  query_read_msg.bindValue(QSL(":account_id"), account_id);
-
-  if (query_read_msg.exec()) {
-    while (query_read_msg.next()) {
-      bool decoded;
-      Message message = Message::fromSqlRecord(query_read_msg.record(), &decoded);
-
-      if (decoded) {
-        messages.append(message);
-      }
-
-      messages.append(message);
-    }
-  }
-
-  return messages;
-}
-
 bool TtRssFeed::markAsReadUnread(RootItem::ReadStatus status) {
   QStringList ids = serviceRoot()->customIDSOfMessagesForItem(this);
   TtRssUpdateArticleResponse response = serviceRoot()->network()->updateArticles(ids, UpdateArticle::Unread,

src/services/tt-rss/ttrssfeed.h

@@ -43,7 +43,6 @@ class TtRssFeed : public Feed {
     bool deleteViaGui();
 
     int update();
-    QList<Message> undeletedMessages() const;
     bool markAsReadUnread(ReadStatus status);
     bool cleanMessages(bool clear_only_read);
     bool editItself(TtRssFeed *new_feed_data);