diff --git a/src/libdanbooru/servicebase.cpp b/src/libdanbooru/servicebase.cpp
index 5f32fbb..bd5929f 100644
--- a/src/libdanbooru/servicebase.cpp
+++ b/src/libdanbooru/servicebase.cpp
@@ -22,6 +22,24 @@
 
 namespace Danbooru {
 
+DanbooruServiceBase::DanbooruServiceBase(QUrl boardUrl, QString username,
+                                 QString password, KImageCache *cache,
+                                 QObject *parent):
+    QObject(parent),
+    m_url(boardUrl),
+    m_username(username),
+    m_password(password),
+    m_maxRating(Danbooru::DanbooruPost::Safe),
+    m_maxPosts(10),
+    m_currentPage(1),
+    m_tags(QStringList()),
+    m_postsToFetch(0),
+    m_cache(cache){
+}
+
+DanbooruServiceBase::~DanbooruServiceBase() {
+}
+
 const QStringList DanbooruServiceBase::allowedRatings() const {
 
     QStringList ratings;
diff --git a/src/libdanbooru/servicebase.h b/src/libdanbooru/servicebase.h
index ab0f06e..58ee479 100644
--- a/src/libdanbooru/servicebase.h
+++ b/src/libdanbooru/servicebase.h
@@ -68,13 +68,16 @@ private:
 
     // URI functions
 
-    virtual const QLatin1String postUri() = 0;
-    virtual const QLatin1String poolUri() = 0;
-    virtual const QLatin1String artistUri() = 0;
-    virtual const QLatin1String poolDataUri() = 0;
-    virtual const QLatin1String relatedTagUri() = 0;
+    virtual const QLatin1String postUri() const = 0;
+    virtual const QLatin1String poolUri() const = 0;
+    virtual const QLatin1String artistUri() const = 0;
+    virtual const QLatin1String tagUri() const = 0;
+    virtual const QLatin1String poolDataUri() const = 0;
+    virtual const QLatin1String relatedTagUri() const = 0;
 
-    // member variables
+protected:
+
+     // member variables
 
     QUrl m_url;
     QString m_username;
@@ -91,7 +94,9 @@ private:
 
 public:
 
-    explicit DanbooruServiceBase();
+    explicit DanbooruServiceBase(QUrl boardUrl = QUrl(), QString username = QString(),
+                    QString password = QString(), KImageCache *cache = 0,
+                    QObject *parent = 0);
     virtual ~DanbooruServiceBase();
 
     /////////////////////////////////////////////