Update to 8.3.0 | MVC Models and Bindings and fix of #723 , read HISTORY.md

Former-commit-id: d8f66d8d370c583a288333df2a14c6ee2dc56466

mvc/session_controller.go

@@ -0,0 +1,35 @@
+package mvc
+
+import (
+	"github.com/kataras/iris/context"
+	"github.com/kataras/iris/sessions"
+)
+
+// SessionController is a simple `Controller` implementation
+// which requires a binded session manager in order to give
+// direct access to the current client's session via its `Session` field.
+type SessionController struct {
+	Controller
+
+	Manager *sessions.Sessions
+	Session *sessions.Session
+}
+
+var managerMissing = "MVC SessionController: session manager field is nil, you have to bind it to a *sessions.Sessions"
+
+// BeginRequest calls the Controller's BeginRequest
+// and tries to initialize the current user's Session.
+func (s *SessionController) BeginRequest(ctx context.Context) {
+	s.Controller.BeginRequest(ctx)
+	if s.Manager == nil {
+		ctx.Application().Logger().Errorf(managerMissing)
+		return
+	}
+
+	s.Session = s.Manager.Start(ctx)
+}
+
+/* TODO:
+Maybe add struct tags on `binder` for required binded values
+in order to log error if some of the bindings are missing or leave that to the end-developers?
+*/