Fix: Data updated but error thrown because of deleted records.

1. Fix: Data updated but error thrown because of deleted records.

dalmdl/corefdb/bucket.go

 package corefdb
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -55,6 +56,9 @@ const (
 	FileType = "fileType"
 )
 
+// ErrNoDataFound - This error describes that the required data might be deleted and not found. Kidly ignore this error in caller.
+var ErrNoDataFound = errors.New("No data found")
+
 // Bucket - Bucket
 type Bucket struct {
 	BucketID        string                 `json:"bucketId"`
@@ -849,6 +853,9 @@ func updateDataInFileIndexBucket(fdb *FDB, bucket *Bucket, filePaths []string, r
 	for _, path := range filePaths {
 		filePath := filepath.Join(fdb.DBPath, path)
 		resultArray, err := updateDataWithInFileIndex(filePath, bucket, rs, infileIndexQuery)
+		if err == ErrNoDataFound {
+			continue
+		}
 		if err != nil {
 			loggermdl.LogError(err)
 			return nil, err
@@ -899,9 +906,11 @@ func updateDataWithInFileIndex(filePath string, bucket *Bucket, rs *gjson.Result
 	for _, query := range infileIndexQueries {
 		indexRecordsToUpdate = indexRecordsToUpdate.Get(query + "#")
 	}
+	loggermdl.LogError("indexRecordsToUpdate - ", indexRecordsToUpdate)
 	indexRecordsToUpdateObjs := indexRecordsToUpdate.Array()
+	loggermdl.LogError("Len indexRecordsToUpdateObjs - ", len(indexRecordsToUpdateObjs))
 	if len(indexRecordsToUpdateObjs) == 0 {
-		return nil, errormdl.Wrap("no data found to update")
+		return nil, ErrNoDataFound
 	}
 	loggermdl.LogError("indexRowObjs", indexRecordsToUpdateObjs)
 	// updating first record
@@ -963,11 +972,11 @@ func updateDataInFileIndex(f *os.File, bucket *Bucket, recordToUpdateIndexRow gj
 		updatedFooterOffset = footerStartOffset + newDataSize
 		fileStartOffset = footerStartOffset
 	}
-	indexRows, err := getInFileIndexData(f)
-	if err != nil {
-		return nil, err
-	}
-	loggermdl.LogError("indexRows - ", indexRows)
+	// indexRows, err := getInFileIndexData(f)
+	// if err != nil {
+	// 	return nil, err
+	// }
+	loggermdl.LogError("existingIndexRows - ", existingIndexRows)
 	// update startofffset and datasize in infile index
 	// updateIndexRow
 	updatedIndexRowStr := recordToUpdateIndexRow.String()
@@ -1022,7 +1031,8 @@ func updateDataInFileIndex(f *os.File, bucket *Bucket, recordToUpdateIndexRow gj
 }
 
 func updateIndexRow(indexRows gjson.Result, previousIndexRow gjson.Result, updatedRow gjson.Result) (gjson.Result, error) {
-
+	loggermdl.LogError("Index rows to update - ", indexRows.String())
+	loggermdl.LogError("Ilength - ", len(indexRows.Array()))
 	indexRowObjs := indexRows.Array()
 	if len(indexRowObjs) == 0 {
 		return indexRows, errormdl.Wrap("no data found to update")