// GetListHelper is a helper function that retrieves a list and it's
// items from the datastore. If a failure occured, false is returned
// and a response was returned to the request. This case should be
// terminal.
func GetListHelper(c appengine.Context, w http.ResponseWriter,
r *http.Request, key string) (*List, bool) {
// Decode the string version of the key.
k, err := datastore.DecodeKey(key)
if err != nil {
gorca.LogAndUnexpected(c, w, r, err)
return nil, false
}
// Get the list by key.
var l List
if err := datastore.Get(c, k, &l); err != nil {
gorca.LogAndNotFound(c, w, r, err)
return nil, false
}
// Get all of the items for the list.
var li ItemsList
q := datastore.NewQuery("Item").Ancestor(k).Order("Order")
if _, err := q.GetAll(c, &li); err != nil {
gorca.LogAndUnexpected(c, w, r, err)
return nil, false
}
l.Items = li
return &l, true
}
// GetRecipeHelper is a helper function that retrieves a recipe and it's
// items from the datastore. If a failure occured, false is returned
// and a response was returned to the request. This case should be
// terminal.
func GetRecipeHelper(c appengine.Context, w http.ResponseWriter,
r *http.Request, key string) (*Recipe, bool) {
// Decode the string version of the key.
k, err := datastore.DecodeKey(key)
if err != nil {
gorca.LogAndUnexpected(c, w, r, err)
return nil, false
}
// Get the recipe by key.
var recipe Recipe
if err := datastore.Get(c, k, &recipe); err != nil {
gorca.LogAndNotFound(c, w, r, err)
return nil, false
}
return &recipe, true
}
