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Contract hist (#84)

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Add ability to query contract historical state
This commit is contained in:
Matt K
2017-12-04 12:54:33 -06:00
committed by ericmeyer
parent 7501fe70a7
commit 71de8e970d
8 changed files with 143 additions and 44 deletions
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pkg/fakes/blockchain.go
+21 -8
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@@ -3,6 +3,8 @@ package fakes
import (
"sort"
"math/big"
"github.com/8thlight/vulcanizedb/pkg/core"
)
@@ -22,8 +24,13 @@ func (blockchain *Blockchain) GetContract(contractHash string) (core.Contract, e
return contract, err
}
func (blockchain *Blockchain) GetAttribute(contract core.Contract, attributeName string) (interface{}, error) {
result := blockchain.contractAttributes[contract.Hash][attributeName]
func (blockchain *Blockchain) GetAttribute(contract core.Contract, attributeName string, blockNumber *big.Int) (interface{}, error) {
var result interface{}
if blockNumber == nil {
result = blockchain.contractAttributes[contract.Hash+"-1"][attributeName]
} else {
result = blockchain.contractAttributes[contract.Hash+blockNumber.String()][attributeName]
}
return result, nil
}
@@ -63,17 +70,23 @@ func (blockchain *Blockchain) StopListening() {
blockchain.WasToldToStop = true
}
func (blockchain *Blockchain) SetContractStateAttribute(contractHash string, attributeName string, attributeValue string) {
contractStateAttributes := blockchain.contractAttributes[contractHash]
if contractStateAttributes == nil {
blockchain.contractAttributes[contractHash] = make(map[string]string)
func (blockchain *Blockchain) SetContractStateAttribute(contractHash string, blockNumber *big.Int, attributeName string, attributeValue string) {
var key string
if blockNumber == nil {
key = contractHash + "-1"
} else {
key = contractHash + blockNumber.String()
}
blockchain.contractAttributes[contractHash][attributeName] = attributeValue
contractStateAttributes := blockchain.contractAttributes[key]
if contractStateAttributes == nil {
blockchain.contractAttributes[key] = make(map[string]string)
}
blockchain.contractAttributes[key][attributeName] = attributeValue
}
func (blockchain *Blockchain) getContractAttributes(contractHash string) (core.ContractAttributes, error) {
var contractAttributes core.ContractAttributes
attributes, ok := blockchain.contractAttributes[contractHash]
attributes, ok := blockchain.contractAttributes[contractHash+"-1"]
if ok {
for key, _ := range attributes {
contractAttributes = append(contractAttributes, core.ContractAttribute{Name: key, Type: "string"})