func getTopics(a *application.App, w http.ResponseWriter, r *http.Request) error {
tm := models.NewTopicModel(a.DB)
topics, err := tm.Find(nil)
if err != nil {
return errors.Wrap(err, "find error")
}
data := context.TemplateData(r)
data["Topics"] = topics
err = libtemplate.Render(w, a.Templates, "topics.html", data)
return errors.Wrap(err, "render template error")
}
func postNewTopic(a *application.App, w http.ResponseWriter, r *http.Request) error {
name := r.FormValue("name")
title := r.FormValue("title")
description := r.FormValue("description")
tm := models.NewTopicModel(a.DB)
topic := &models.Topic{Name: name, Title: title, Description: description}
if err := tm.Add(nil, topic); err != nil {
return err
}
http.Redirect(w, r, topic.URL(), http.StatusFound)
return nil
}
// SetTopic sets the topic with the name in the url in the context and template data.
func (m *Middleware) SetTopic(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
topicName := strings.ToLower(vars["topicName"])
tm := models.NewTopicModel(m.App.DB)
topic, err := tm.FindOne(nil, squirrel.Eq{"topics.name": topicName})
if err != nil {
httperror.HandleError(w, errors.Wrap(err, "find one error"))
return
}
context.SetTopic(r, topic)
templateData := context.TemplateData(r)
templateData["Topic"] = topic
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}