From cc8464ce805279735f637ac710b25e2fb264f9aa Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Thu, 22 May 2014 17:56:33 +0200
Subject: [PATCH] Transaction querying

---
 ethchain/block.go       | 11 +++++++++++
 ethchain/transaction.go |  6 +++---
 ethpub/types.go         | 17 ++++++++++++++++-
 3 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/ethchain/block.go b/ethchain/block.go
index c846516f4e..73e29f8783 100644
--- a/ethchain/block.go
+++ b/ethchain/block.go
@@ -1,6 +1,7 @@
 package ethchain
 
 import (
+	"bytes"
 	"fmt"
 	"github.com/ethereum/eth-go/ethutil"
 	"math/big"
@@ -161,6 +162,16 @@ func (block *Block) BlockInfo() BlockInfo {
 	return bi
 }
 
+func (self *Block) GetTransaction(hash []byte) *Transaction {
+	for _, receipt := range self.receipts {
+		if bytes.Compare(receipt.Tx.Hash(), hash) == 0 {
+			return receipt.Tx
+		}
+	}
+
+	return nil
+}
+
 // Sync the block's state and contract respectively
 func (block *Block) Sync() {
 	block.state.Sync()
diff --git a/ethchain/transaction.go b/ethchain/transaction.go
index 16ea312c08..6ae7e77e1c 100644
--- a/ethchain/transaction.go
+++ b/ethchain/transaction.go
@@ -167,10 +167,10 @@ func (tx *Transaction) String() string {
 	TX(%x)
 	Contract: %v
 	From:     %x
+	To:       %x
 	Nonce:    %v
 	GasPrice: %v
 	Gas:      %v
-	To:       %x
 	Value:    %v
 	Data:     0x%x
 	V:        0x%x
@@ -178,12 +178,12 @@ func (tx *Transaction) String() string {
 	S:        0x%x
 	`,
 		tx.Hash(),
-		len(tx.Recipient) > 1,
+		len(tx.Recipient) == 1,
 		tx.Sender(),
+		tx.Recipient,
 		tx.Nonce,
 		tx.GasPrice,
 		tx.Gas,
-		tx.Recipient,
 		tx.Value,
 		tx.Data,
 		tx.v,
diff --git a/ethpub/types.go b/ethpub/types.go
index 7194de372e..e8a2164a78 100644
--- a/ethpub/types.go
+++ b/ethpub/types.go
@@ -31,7 +31,18 @@ func (self *PBlock) ToString() string {
 	return ""
 }
 
+func (self *PBlock) GetTransaction(hash string) *PTx {
+	tx := self.ref.GetTransaction(ethutil.FromHex(hash))
+	if tx == nil {
+		return nil
+	}
+
+	return NewPTx(tx)
+}
+
 type PTx struct {
+	ref *ethchain.Transaction
+
 	Value, Hash, Address string
 	Contract             bool
 }
@@ -41,7 +52,11 @@ func NewPTx(tx *ethchain.Transaction) *PTx {
 	sender := hex.EncodeToString(tx.Recipient)
 	isContract := len(tx.Data) > 0
 
-	return &PTx{Hash: hash, Value: ethutil.CurrencyToString(tx.Value), Address: sender, Contract: isContract}
+	return &PTx{ref: tx, Hash: hash, Value: ethutil.CurrencyToString(tx.Value), Address: sender, Contract: isContract}
+}
+
+func (self *PTx) ToString() string {
+	return self.ref.String()
 }
 
 type PKey struct {