fix for issue #146; mark header checked for contract if it doesnt have

any logs at that header but other contracts do; test

integration_test/contract_watcher_header_sync_transformer_test.go

@@ -40,8 +40,8 @@ var _ = Describe("contractWatcher headerSync transformer", func() {
 	var blockChain core.BlockChain
 	var headerRepository repositories.HeaderRepository
 	var headerID int64
-	var ensAddr = strings.ToLower(constants.EnsContractAddress)
+	var ensAddr = strings.ToLower(constants.EnsContractAddress)   // 0x314159265dd8dbb310642f98f50c066173c1259b
-	var tusdAddr = strings.ToLower(constants.TusdContractAddress)
+	var tusdAddr = strings.ToLower(constants.TusdContractAddress) // 0x8dd5fbce2f6a956c3022ba3663759011dd51e73e
 
 	BeforeEach(func() {
 		db, blockChain = test_helpers.SetupDBandBC()
@@ -377,6 +377,42 @@ var _ = Describe("contractWatcher headerSync transformer", func() {
 			Expect(transferLog.Value).To(Equal("2800000000000000000000"))
 		})
 
+		It("Marks header checked for a contract that has no logs at that header", func() {
+			t := transformer.NewTransformer(test_helpers.ENSandTusdConfig, blockChain, db)
+			err = t.Init()
+			Expect(err).ToNot(HaveOccurred())
+			err = t.Execute()
+			Expect(err).ToNot(HaveOccurred())
+			Expect(t.Start).To(Equal(int64(6885702)))
+
+			newOwnerLog := test_helpers.HeaderSyncNewOwnerLog{}
+			err = db.QueryRowx(fmt.Sprintf("SELECT * FROM header_%s.newowner_event", ensAddr)).StructScan(&newOwnerLog)
+			Expect(err).ToNot(HaveOccurred())
+			transferLog := test_helpers.HeaderSyncTransferLog{}
+			err = db.QueryRowx(fmt.Sprintf("SELECT * FROM header_%s.transfer_event", tusdAddr)).StructScan(&transferLog)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(transferLog.HeaderID).ToNot(Equal(newOwnerLog.HeaderID))
+
+			type checkedHeader struct {
+				ID       int64 `db:"id"`
+				HeaderID int64 `db:"header_id"`
+				NewOwner int64 `db:"newowner_0x314159265dd8dbb310642f98f50c066173c1259b"`
+				Transfer int64 `db:"transfer_0x8dd5fbce2f6a956c3022ba3663759011dd51e73e"`
+			}
+
+			transferCheckedHeader := new(checkedHeader)
+			err = db.QueryRowx("SELECT * FROM public.checked_headers WHERE header_id = $1", transferLog.HeaderID).StructScan(transferCheckedHeader)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(transferCheckedHeader.Transfer).To(Equal(int64(1)))
+			Expect(transferCheckedHeader.NewOwner).To(Equal(int64(1)))
+
+			newOwnerCheckedHeader := new(checkedHeader)
+			err = db.QueryRowx("SELECT * FROM public.checked_headers WHERE header_id = $1", newOwnerLog.HeaderID).StructScan(newOwnerCheckedHeader)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(newOwnerCheckedHeader.NewOwner).To(Equal(int64(1)))
+			Expect(newOwnerCheckedHeader.Transfer).To(Equal(int64(1)))
+		})
+
 		It("Keeps track of contract-related hashes and addresses while transforming event data if they need to be used for later method polling", func() {
 			var testConf config.ContractConfig
 			testConf = test_helpers.ENSandTusdConfig

pkg/contract_watcher/header/repository/header_repository.go

@@ -20,7 +20,6 @@ import (
 	"fmt"
 
 	"github.com/hashicorp/golang-lru"
-	"github.com/jmoiron/sqlx"
 	"github.com/sirupsen/logrus"
 
 	"github.com/vulcanize/vulcanizedb/pkg/core"
@@ -268,12 +267,3 @@ func continuousHeaders(headers []core.Header) []core.Header {
 func (r *headerRepository) CheckCache(key string) (interface{}, bool) {
 	return r.columns.Get(key)
 }
-
-// Used to mark a header checked as part of some external transaction so as to group into one commit
-func (r *headerRepository) MarkHeaderCheckedInTransaction(headerID int64, tx *sqlx.Tx, eventID string) error {
-	_, err := tx.Exec(`INSERT INTO public.checked_headers (header_id, `+eventID+`)
-		VALUES ($1, $2) 
-		ON CONFLICT (header_id) DO
-			UPDATE SET `+eventID+` = checked_headers.`+eventID+` + 1`, headerID, 1)
-	return err
-}

pkg/contract_watcher/header/transformer/transformer.go

@@ -249,6 +249,11 @@ func (tr *Transformer) Execute() error {
 		}
 
 		// Sort logs by the contract they belong to
+		// Start by adding every contract addr to the map
+		// So that if we don't have any logs for it, it is caught and the header is still marked checked for its events
+		for _, addr := range tr.contractAddresses {
+			sortedLogs[addr] = nil
+		}
 		for _, log := range allLogs {
 			addr := strings.ToLower(log.Address.Hex())
 			sortedLogs[addr] = append(sortedLogs[addr], log)
@@ -256,12 +261,20 @@ func (tr *Transformer) Execute() error {
 
 		// Process logs for each contract
 		for conAddr, logs := range sortedLogs {
-			if logs == nil {
+			con := tr.Contracts[conAddr]
+			if len(logs) < 1 {
+				eventIds := make([]string, 0)
+				for eventName := range con.Events {
+					eventIds = append(eventIds, strings.ToLower(eventName+"_"+con.Address))
+				}
+				markCheckedErr := tr.HeaderRepository.MarkHeaderCheckedForAll(header.Id, eventIds)
+				if markCheckedErr != nil {
+					return fmt.Errorf("error marking header checked: %s", markCheckedErr.Error())
+				}
 				logrus.Tracef("no logs found for contract %s at block %d, continuing", conAddr, header.BlockNumber)
 				continue
 			}
 			// Configure converter with this contract
-			con := tr.Contracts[conAddr]
 			tr.Converter.Update(con)
 
 			// Convert logs into batches of log mappings (eventName => []types.Logs

pkg/contract_watcher/shared/helpers/test_helpers/database.go

@@ -294,8 +294,7 @@ func TearDown(db *postgres.DB) {
 
 	_, err = tx.Exec(`CREATE TABLE checked_headers (
     	id SERIAL PRIMARY KEY,
-    	header_id INTEGER UNIQUE NOT NULL REFERENCES headers (id) ON DELETE CASCADE,
+    	header_id INTEGER UNIQUE NOT NULL REFERENCES headers (id) ON DELETE CASCADE);`)
-    	check_count INTEGER NOT NULL DEFAULT 1);`)
 	Expect(err).NotTo(HaveOccurred())
 
 	_, err = tx.Exec(`DROP SCHEMA IF EXISTS full_0x8dd5fbce2f6a956c3022ba3663759011dd51e73e CASCADE`)