Finish adding user creation to admin screen.

src/ui/AdminInterface.cpp

@@ -18,8 +18,51 @@
  */
 
 #include "AdminInterface.h"
+#include "../db/UserAction.h"
 
 AdminInterface::AdminInterface(WebInterface* app)
 {
     this->app = app;
+    this->setMaximumSize(Wt::WLength::Auto,Wt::WLength(175,Wt::WLength::Pixel));
+    this->setOverflow(OverflowHidden);
+    userLayout = new Wt::WHBoxLayout();
+    usernameField = new Wt::WLineEdit();
+    passwordField = new Wt::WLineEdit();
+    addBtn = new Wt::WPushButton("");
+    
+    this->setLayout(userLayout);
+    userLayout->addWidget(usernameField);
+    userLayout->addWidget(passwordField);
+    userLayout->addWidget(addBtn);
+    passwordField->setEchoMode(Wt::WLineEdit::EchoMode::Password);
+    addBtn->setTextFormat(Wt::XHTMLText);
+    addBtn->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
+    addBtn->clicked().connect(this, &AdminInterface::addClicked);
+}
+
+void AdminInterface::addClicked()
+{
+    Wt::Dbo::Session sqlSession;
+    sqlSession.setConnectionPool(*GroovePlayerMgr::getInstance()->connectionPool);
+    sqlSession.mapClass<User>("user");
+    sqlSession.mapClass<AudioTrack>("tracks");
+    sqlSession.mapClass<UserAction>("actions");
+    Wt::Dbo::Transaction addUserTransaction(sqlSession);
+    
+    //Make sure user is valid to add
+    if(usernameField->text().empty() || passwordField->text().empty())
+    {
+        usernameField->setText("");
+        passwordField->setText("");
+        return;
+    }
+    int usernameMatching = sqlSession.query<int>("select count(username) from user").where("username = ?").bind(usernameField->text().toUTF8());
+    if(usernameMatching > 0)
+    {
+        usernameField->setText("already exists");
+        return;
+    }
+    
+    //Add user
+    app->createUser(&sqlSession, usernameField->text().toUTF8(), passwordField->text().toUTF8(), false);
 }