func persist(c *gin.Context, content string) {
context := appengine.NewContext(c.Request)
greetings := models.Greetings{}
author := "guest"
if u := user.Current(context); u != nil {
author = u.String()
}
greeting := greetings.New(author, content)
if err := db.NewDatastore(context).Create(greeting); err != nil {
statusInternalServerError(c, err)
return
}
}
