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collections.go
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collections.go
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// (c) 2019 Dapper Labs - ALL RIGHTS RESERVED
package operation
import (
"github.com/dgraph-io/badger/v2"
"github.com/onflow/flow-go/model/flow"
)
// NOTE: These insert light collections, which only contain references
// to the constituent transactions. They do not modify transactions contained
// by the collections.
func InsertCollection(collection *flow.LightCollection) func(*badger.Txn) error {
return insert(makePrefix(codeCollection, collection.ID()), collection)
}
func RetrieveCollection(collID flow.Identifier, collection *flow.LightCollection) func(*badger.Txn) error {
return retrieve(makePrefix(codeCollection, collID), collection)
}
func RemoveCollection(collID flow.Identifier) func(*badger.Txn) error {
return remove(makePrefix(codeCollection, collID))
}
// IndexCollectionPayload indexes the transactions within the collection payload
// of a cluster block.
func IndexCollectionPayload(blockID flow.Identifier, txIDs []flow.Identifier) func(*badger.Txn) error {
return insert(makePrefix(codeIndexCollection, blockID), txIDs)
}
// LookupCollection looks up the collection for a given cluster payload.
func LookupCollectionPayload(blockID flow.Identifier, txIDs *[]flow.Identifier) func(*badger.Txn) error {
return retrieve(makePrefix(codeIndexCollection, blockID), txIDs)
}
// IndexCollectionByTransaction inserts a collection id keyed by a transaction id
func IndexCollectionByTransaction(txID flow.Identifier, collectionID flow.Identifier) func(*badger.Txn) error {
return insert(makePrefix(codeIndexCollectionByTransaction, txID), collectionID)
}
// LookupCollectionID retrieves a collection id by transaction id
func RetrieveCollectionID(txID flow.Identifier, collectionID *flow.Identifier) func(*badger.Txn) error {
return retrieve(makePrefix(codeIndexCollectionByTransaction, txID), collectionID)
}