generated from alecodes/base-template
37 lines
1,006 B
Go
37 lines
1,006 B
Go
package synchronizator
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import "fmt"
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// Utility struct to represent a collection of nodes, it's a [Node] itself so all
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// the node's functionality is available.
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type Collection struct {
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Node // Underlaying node info
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childs []*Node // Child nodes
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}
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// Internal RelationshipClass to handle the collection to node relationship
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type collection_relation struct{}
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func (collection *collection_relation) ToRelationship() (string, []byte, error) {
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return "COLLECTION_HAS", nil, nil
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}
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func (collection *collection_relation) FromRelationship(_class string, metadata []byte) error {
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if _class != "COLLECTION_HAS" {
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return fmt.Errorf("invalid class %s", _class)
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}
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return nil
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}
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// Adds a new child to this collection. Use the underlaying node's AddRelation
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// method.
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func (collection *Collection) AddChild(node *Node) error {
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_, err := collection.AddRelation(&collection_relation{}, node.Id)
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if err != nil {
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return err
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}
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collection.childs = append(collection.childs, node)
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return nil
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}
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