func (c *C) Update(a iface.Filter, data map[string]interface{}) error {
upd := map[string]interface{}{
"$set": data,
}
has_files := len(c.fileBiz) > 0
if has_files {
ids, err := a.Ids()
if err != nil {
return err
}
err = c.moveFiles(a.Subject(), ids[0].String())
if err != nil {
return err
}
upd["$addToSet"] = eachIfNeeded(fileNames(c.fileBiz))
}
err := a.Update(upd)
if err != nil {
return err
}
if c.Hooks != nil {
c.Hooks.Select("Updated").Fire(a)
c.Hooks.Select(a.Subject() + "Updated").Fire(a)
}
return nil
}
func (f *Filter) Reduce(a ...iface.Filter) (iface.Filter, error) {
l := len(a)
if l == 0 {
return &Filter{}, fmt.Errorf("Nothing to reduce.")
}
var prev iface.Filter
prev = f
for _, v := range a {
ids, err := prev.Ids()
if err != nil {
return &Filter{}, err
}
v.AddParents("_"+prev.Subject(), ids)
prev = v
}
return prev, nil
}