Method AddFunction

core/functions/collection.go:109–135

AddFunction adds a new function.

(ctx context.Context, f Function)

// AddFunction adds a new function.
func (pgf *Collection) AddFunction(ctx context.Context, f Function) error {
	// First we'll check to see if it exists
	if _, ok := pgf.accessCache[f.ID]; ok {
		return errors.Errorf(`function "%s" already exists with same argument types`, f.ID.FunctionName())
	}

	// Now we'll add the function to our map
	data, err := f.Serialize(ctx)
	if err != nil {
		return err
	}
	h, err := pgf.ns.WriteBytes(ctx, data)
	if err != nil {
		return err
	}
	mapEditor := pgf.underlyingMap.Editor()
	if err = mapEditor.Add(ctx, string(f.ID), h); err != nil {
		return err
	}
	newMap, err := mapEditor.Flush(ctx)
	if err != nil {
		return err
	}
	pgf.underlyingMap = newMap
	pgf.mapHash = pgf.underlyingMap.HashOf()
	return pgf.reloadCaches(ctx)
}

// DropFunction drops an existing function.
func (pgf *Collection) DropFunction(ctx context.Context, funcIDs ...id.Function) error {