Add AppSetting model

db/inc/dbmanager_migrate_from.h

@@ -2,7 +2,7 @@
 #define DBMANAGER_MIGRATE_FROM
 
 // This file was generated by `/db/gen_migration_data.rb`.
-// Last changed at: 2018-05-05 13:41:22 +0200
+// Last changed at: 2018-05-06 15:06:18 +0200
 
 void DbManager::migrateFrom(qlonglong version)
 {
@@ -19,6 +19,15 @@ void DbManager::migrateFrom(qlonglong version)
         version = 20180505002706;
         // qDebug() << "====== done ========";
     }
+    if (version < 20180506095408)
+    {
+        // qDebug() << "migrating to version 20180506095408";
+        query.exec("CREATE TABLE `app_settings` (`name` varchar(255) NOT NULL PRIMARY KEY, `value` text DEFAULT ('') NOT NULL)");
+
+        query.exec("INSERT INTO `schema_migrations` (`version`) VALUES (20180506095408)");
+        version = 20180506095408;
+        // qDebug() << "====== done ========";
+    }
 }
 
 #endif // DBMANAGER_MIGRATE_FROM

db/migrations/20180506095408_create_app_settings.rb

+Sequel.migration do
+  change do
+    create_table(:app_settings) do
+      String :name, primary_key: true
+      String :value, text: true, default: "", null: false
+    end
+  end
+end

nFurAffinity.pro

@@ -31,7 +31,8 @@ SOURCES += \
     src/dbmanager.cpp \
     src/settings/settingsdialog.cpp \
     src/settings/accountswidget.cpp \
-    src/webdialog.cpp
+    src/webdialog.cpp \
+    src/models/appsetting.cpp
 
 HEADERS += \
     src/mainwindow.h \
@@ -41,7 +42,8 @@ HEADERS += \
     db/inc/dbmanager_migrate_from.h \
     src/settings/settingsdialog.h \
     src/settings/accountswidget.h \
-    src/webdialog.h
+    src/webdialog.h \
+    src/models/appsetting.h
 
 FORMS += \
     src/mainwindow.ui \

src/models/appsetting.cpp

+#include "appsetting.h"
+
+#include <QSqlDatabase>
+#include <QSqlQuery>
+#include <QSqlError>
+
+AppSetting::AppSetting(QObject *parent) : QObject(parent)
+{
+}
+
+QString AppSetting::get(const QString &name, bool *ok)
+{
+    QSqlDatabase db = QSqlDatabase::database();
+    QSqlQuery query;
+
+    query.prepare("SELECT `value` FROM `app_settings` WHERE `name` = :name");
+    query.bindValue(":name", name);
+
+    if (!(query.exec() && query.first()))
+    {
+        if (ok != nullptr)
+        {
+            *ok = false;
+        }
+        db.close();
+        return "";
+    }
+
+    if (ok != nullptr)
+    {
+        *ok = true;
+    }
+    db.close();
+    return query.value("value").toString();
+}
+
+bool AppSetting::set(const QString &name, const QString &value)
+{
+    QSqlDatabase db = QSqlDatabase::database();
+    QSqlQuery query;
+
+    query.prepare("INSERT OR REPLACE INTO `app_settings` (`name`, `value`) "
+                  "VALUES (:name, :value)");
+    query.bindValue(":name", name);
+    query.bindValue(":value", value);
+
+    if (!query.exec())
+    {
+        db.close();
+        return false;
+    }
+
+    db.close();
+    return true;
+}

src/models/appsetting.h

+#ifndef APPSETTING_H
+#define APPSETTING_H
+
+#include <QObject>
+#include <QVariant>
+
+class AppSetting : public QObject
+{
+    Q_OBJECT
+public:
+    explicit AppSetting(QObject *parent = nullptr);
+
+    static QString get(const QString& name, bool *ok = nullptr);
+    static bool set(const QString& name, const QString& value);
+
+signals:
+
+public slots:
+};
+
+#endif // APPSETTING_H