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CircleDB.go
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CircleDB.go
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// generated by stacks/gong/go/models/orm_file_per_struct_back_repo.go
package orm
import (
"database/sql"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"sort"
"time"
"gorm.io/gorm"
"github.com/tealeg/xlsx/v3"
"github.com/fullstack-lang/gongleaflet/go/models"
)
// dummy variable to have the import declaration wihthout compile failure (even if no code needing this import is generated)
var dummy_Circle_sql sql.NullBool
var dummy_Circle_time time.Duration
var dummy_Circle_sort sort.Float64Slice
// CircleAPI is the input in POST API
//
// for POST, API, one needs the fields of the model as well as the fields
// from associations ("Has One" and "Has Many") that are generated to
// fullfill the ORM requirements for associations
//
// swagger:model circleAPI
type CircleAPI struct {
gorm.Model
models.Circle_WOP
// encoding of pointers
// for API, it cannot be embedded
CirclePointersEncoding CirclePointersEncoding
}
// CirclePointersEncoding encodes pointers to Struct and
// reverse pointers of slice of poitners to Struct
type CirclePointersEncoding struct {
// insertion for pointer fields encoding declaration
// field LayerGroup is a pointer to another Struct (optional or 0..1)
// This field is generated into another field to enable AS ONE association
LayerGroupID sql.NullInt64
}
// CircleDB describes a circle in the database
//
// It incorporates the GORM ID, basic fields from the model (because they can be serialized),
// the encoded version of pointers
//
// swagger:model circleDB
type CircleDB struct {
gorm.Model
// insertion for basic fields declaration
// Declation for basic field circleDB.Lat
Lat_Data sql.NullFloat64
// Declation for basic field circleDB.Lng
Lng_Data sql.NullFloat64
// Declation for basic field circleDB.Name
Name_Data sql.NullString
// Declation for basic field circleDB.Radius
Radius_Data sql.NullFloat64
// Declation for basic field circleDB.ColorEnum
ColorEnum_Data sql.NullString
// Declation for basic field circleDB.DashStyleEnum
DashStyleEnum_Data sql.NullString
// encoding of pointers
// for GORM serialization, it is necessary to embed to Pointer Encoding declaration
CirclePointersEncoding
}
// CircleDBs arrays circleDBs
// swagger:response circleDBsResponse
type CircleDBs []CircleDB
// CircleDBResponse provides response
// swagger:response circleDBResponse
type CircleDBResponse struct {
CircleDB
}
// CircleWOP is a Circle without pointers (WOP is an acronym for "Without Pointers")
// it holds the same basic fields but pointers are encoded into uint
type CircleWOP struct {
ID int `xlsx:"0"`
// insertion for WOP basic fields
Lat float64 `xlsx:"1"`
Lng float64 `xlsx:"2"`
Name string `xlsx:"3"`
Radius float64 `xlsx:"4"`
ColorEnum models.ColorEnum `xlsx:"5"`
DashStyleEnum models.DashStyleEnum `xlsx:"6"`
// insertion for WOP pointer fields
}
var Circle_Fields = []string{
// insertion for WOP basic fields
"ID",
"Lat",
"Lng",
"Name",
"Radius",
"ColorEnum",
"DashStyleEnum",
}
type BackRepoCircleStruct struct {
// stores CircleDB according to their gorm ID
Map_CircleDBID_CircleDB map[uint]*CircleDB
// stores CircleDB ID according to Circle address
Map_CirclePtr_CircleDBID map[*models.Circle]uint
// stores Circle according to their gorm ID
Map_CircleDBID_CirclePtr map[uint]*models.Circle
db *gorm.DB
stage *models.StageStruct
}
func (backRepoCircle *BackRepoCircleStruct) GetStage() (stage *models.StageStruct) {
stage = backRepoCircle.stage
return
}
func (backRepoCircle *BackRepoCircleStruct) GetDB() *gorm.DB {
return backRepoCircle.db
}
// GetCircleDBFromCirclePtr is a handy function to access the back repo instance from the stage instance
func (backRepoCircle *BackRepoCircleStruct) GetCircleDBFromCirclePtr(circle *models.Circle) (circleDB *CircleDB) {
id := backRepoCircle.Map_CirclePtr_CircleDBID[circle]
circleDB = backRepoCircle.Map_CircleDBID_CircleDB[id]
return
}
// BackRepoCircle.CommitPhaseOne commits all staged instances of Circle to the BackRepo
// Phase One is the creation of instance in the database if it is not yet done to get the unique ID for each staged instance
func (backRepoCircle *BackRepoCircleStruct) CommitPhaseOne(stage *models.StageStruct) (Error error) {
for circle := range stage.Circles {
backRepoCircle.CommitPhaseOneInstance(circle)
}
// parse all backRepo instance and checks wether some instance have been unstaged
// in this case, remove them from the back repo
for id, circle := range backRepoCircle.Map_CircleDBID_CirclePtr {
if _, ok := stage.Circles[circle]; !ok {
backRepoCircle.CommitDeleteInstance(id)
}
}
return
}
// BackRepoCircle.CommitDeleteInstance commits deletion of Circle to the BackRepo
func (backRepoCircle *BackRepoCircleStruct) CommitDeleteInstance(id uint) (Error error) {
circle := backRepoCircle.Map_CircleDBID_CirclePtr[id]
// circle is not staged anymore, remove circleDB
circleDB := backRepoCircle.Map_CircleDBID_CircleDB[id]
query := backRepoCircle.db.Unscoped().Delete(&circleDB)
if query.Error != nil {
log.Fatal(query.Error)
}
// update stores
delete(backRepoCircle.Map_CirclePtr_CircleDBID, circle)
delete(backRepoCircle.Map_CircleDBID_CirclePtr, id)
delete(backRepoCircle.Map_CircleDBID_CircleDB, id)
return
}
// BackRepoCircle.CommitPhaseOneInstance commits circle staged instances of Circle to the BackRepo
// Phase One is the creation of instance in the database if it is not yet done to get the unique ID for each staged instance
func (backRepoCircle *BackRepoCircleStruct) CommitPhaseOneInstance(circle *models.Circle) (Error error) {
// check if the circle is not commited yet
if _, ok := backRepoCircle.Map_CirclePtr_CircleDBID[circle]; ok {
return
}
// initiate circle
var circleDB CircleDB
circleDB.CopyBasicFieldsFromCircle(circle)
query := backRepoCircle.db.Create(&circleDB)
if query.Error != nil {
log.Fatal(query.Error)
}
// update stores
backRepoCircle.Map_CirclePtr_CircleDBID[circle] = circleDB.ID
backRepoCircle.Map_CircleDBID_CirclePtr[circleDB.ID] = circle
backRepoCircle.Map_CircleDBID_CircleDB[circleDB.ID] = &circleDB
return
}
// BackRepoCircle.CommitPhaseTwo commits all staged instances of Circle to the BackRepo
// Phase Two is the update of instance with the field in the database
func (backRepoCircle *BackRepoCircleStruct) CommitPhaseTwo(backRepo *BackRepoStruct) (Error error) {
for idx, circle := range backRepoCircle.Map_CircleDBID_CirclePtr {
backRepoCircle.CommitPhaseTwoInstance(backRepo, idx, circle)
}
return
}
// BackRepoCircle.CommitPhaseTwoInstance commits {{structname }} of models.Circle to the BackRepo
// Phase Two is the update of instance with the field in the database
func (backRepoCircle *BackRepoCircleStruct) CommitPhaseTwoInstance(backRepo *BackRepoStruct, idx uint, circle *models.Circle) (Error error) {
// fetch matching circleDB
if circleDB, ok := backRepoCircle.Map_CircleDBID_CircleDB[idx]; ok {
circleDB.CopyBasicFieldsFromCircle(circle)
// insertion point for translating pointers encodings into actual pointers
// commit pointer value circle.LayerGroup translates to updating the circle.LayerGroupID
circleDB.LayerGroupID.Valid = true // allow for a 0 value (nil association)
if circle.LayerGroup != nil {
if LayerGroupId, ok := backRepo.BackRepoLayerGroup.Map_LayerGroupPtr_LayerGroupDBID[circle.LayerGroup]; ok {
circleDB.LayerGroupID.Int64 = int64(LayerGroupId)
circleDB.LayerGroupID.Valid = true
}
} else {
circleDB.LayerGroupID.Int64 = 0
circleDB.LayerGroupID.Valid = true
}
query := backRepoCircle.db.Save(&circleDB)
if query.Error != nil {
log.Fatalln(query.Error)
}
} else {
err := errors.New(
fmt.Sprintf("Unkown Circle intance %s", circle.Name))
return err
}
return
}
// BackRepoCircle.CheckoutPhaseOne Checkouts all BackRepo instances to the Stage
//
// Phase One will result in having instances on the stage aligned with the back repo
// pointers are not initialized yet (this is for phase two)
func (backRepoCircle *BackRepoCircleStruct) CheckoutPhaseOne() (Error error) {
circleDBArray := make([]CircleDB, 0)
query := backRepoCircle.db.Find(&circleDBArray)
if query.Error != nil {
return query.Error
}
// list of instances to be removed
// start from the initial map on the stage and remove instances that have been checked out
circleInstancesToBeRemovedFromTheStage := make(map[*models.Circle]any)
for key, value := range backRepoCircle.stage.Circles {
circleInstancesToBeRemovedFromTheStage[key] = value
}
// copy orm objects to the the map
for _, circleDB := range circleDBArray {
backRepoCircle.CheckoutPhaseOneInstance(&circleDB)
// do not remove this instance from the stage, therefore
// remove instance from the list of instances to be be removed from the stage
circle, ok := backRepoCircle.Map_CircleDBID_CirclePtr[circleDB.ID]
if ok {
delete(circleInstancesToBeRemovedFromTheStage, circle)
}
}
// remove from stage and back repo's 3 maps all circles that are not in the checkout
for circle := range circleInstancesToBeRemovedFromTheStage {
circle.Unstage(backRepoCircle.GetStage())
// remove instance from the back repo 3 maps
circleID := backRepoCircle.Map_CirclePtr_CircleDBID[circle]
delete(backRepoCircle.Map_CirclePtr_CircleDBID, circle)
delete(backRepoCircle.Map_CircleDBID_CircleDB, circleID)
delete(backRepoCircle.Map_CircleDBID_CirclePtr, circleID)
}
return
}
// CheckoutPhaseOneInstance takes a circleDB that has been found in the DB, updates the backRepo and stages the
// models version of the circleDB
func (backRepoCircle *BackRepoCircleStruct) CheckoutPhaseOneInstance(circleDB *CircleDB) (Error error) {
circle, ok := backRepoCircle.Map_CircleDBID_CirclePtr[circleDB.ID]
if !ok {
circle = new(models.Circle)
backRepoCircle.Map_CircleDBID_CirclePtr[circleDB.ID] = circle
backRepoCircle.Map_CirclePtr_CircleDBID[circle] = circleDB.ID
// append model store with the new element
circle.Name = circleDB.Name_Data.String
circle.Stage(backRepoCircle.GetStage())
}
circleDB.CopyBasicFieldsToCircle(circle)
// in some cases, the instance might have been unstaged. It is necessary to stage it again
circle.Stage(backRepoCircle.GetStage())
// preserve pointer to circleDB. Otherwise, pointer will is recycled and the map of pointers
// Map_CircleDBID_CircleDB)[circleDB hold variable pointers
circleDB_Data := *circleDB
preservedPtrToCircle := &circleDB_Data
backRepoCircle.Map_CircleDBID_CircleDB[circleDB.ID] = preservedPtrToCircle
return
}
// BackRepoCircle.CheckoutPhaseTwo Checkouts all staged instances of Circle to the BackRepo
// Phase Two is the update of instance with the field in the database
func (backRepoCircle *BackRepoCircleStruct) CheckoutPhaseTwo(backRepo *BackRepoStruct) (Error error) {
// parse all DB instance and update all pointer fields of the translated models instance
for _, circleDB := range backRepoCircle.Map_CircleDBID_CircleDB {
backRepoCircle.CheckoutPhaseTwoInstance(backRepo, circleDB)
}
return
}
// BackRepoCircle.CheckoutPhaseTwoInstance Checkouts staged instances of Circle to the BackRepo
// Phase Two is the update of instance with the field in the database
func (backRepoCircle *BackRepoCircleStruct) CheckoutPhaseTwoInstance(backRepo *BackRepoStruct, circleDB *CircleDB) (Error error) {
circle := backRepoCircle.Map_CircleDBID_CirclePtr[circleDB.ID]
circleDB.DecodePointers(backRepo, circle)
return
}
func (circleDB *CircleDB) DecodePointers(backRepo *BackRepoStruct, circle *models.Circle) {
// insertion point for checkout of pointer encoding
// LayerGroup field
circle.LayerGroup = nil
if circleDB.LayerGroupID.Int64 != 0 {
circle.LayerGroup = backRepo.BackRepoLayerGroup.Map_LayerGroupDBID_LayerGroupPtr[uint(circleDB.LayerGroupID.Int64)]
}
return
}
// CommitCircle allows commit of a single circle (if already staged)
func (backRepo *BackRepoStruct) CommitCircle(circle *models.Circle) {
backRepo.BackRepoCircle.CommitPhaseOneInstance(circle)
if id, ok := backRepo.BackRepoCircle.Map_CirclePtr_CircleDBID[circle]; ok {
backRepo.BackRepoCircle.CommitPhaseTwoInstance(backRepo, id, circle)
}
backRepo.CommitFromBackNb = backRepo.CommitFromBackNb + 1
}
// CommitCircle allows checkout of a single circle (if already staged and with a BackRepo id)
func (backRepo *BackRepoStruct) CheckoutCircle(circle *models.Circle) {
// check if the circle is staged
if _, ok := backRepo.BackRepoCircle.Map_CirclePtr_CircleDBID[circle]; ok {
if id, ok := backRepo.BackRepoCircle.Map_CirclePtr_CircleDBID[circle]; ok {
var circleDB CircleDB
circleDB.ID = id
if err := backRepo.BackRepoCircle.db.First(&circleDB, id).Error; err != nil {
log.Fatalln("CheckoutCircle : Problem with getting object with id:", id)
}
backRepo.BackRepoCircle.CheckoutPhaseOneInstance(&circleDB)
backRepo.BackRepoCircle.CheckoutPhaseTwoInstance(backRepo, &circleDB)
}
}
}
// CopyBasicFieldsFromCircle
func (circleDB *CircleDB) CopyBasicFieldsFromCircle(circle *models.Circle) {
// insertion point for fields commit
circleDB.Lat_Data.Float64 = circle.Lat
circleDB.Lat_Data.Valid = true
circleDB.Lng_Data.Float64 = circle.Lng
circleDB.Lng_Data.Valid = true
circleDB.Name_Data.String = circle.Name
circleDB.Name_Data.Valid = true
circleDB.Radius_Data.Float64 = circle.Radius
circleDB.Radius_Data.Valid = true
circleDB.ColorEnum_Data.String = circle.ColorEnum.ToString()
circleDB.ColorEnum_Data.Valid = true
circleDB.DashStyleEnum_Data.String = circle.DashStyleEnum.ToString()
circleDB.DashStyleEnum_Data.Valid = true
}
// CopyBasicFieldsFromCircle_WOP
func (circleDB *CircleDB) CopyBasicFieldsFromCircle_WOP(circle *models.Circle_WOP) {
// insertion point for fields commit
circleDB.Lat_Data.Float64 = circle.Lat
circleDB.Lat_Data.Valid = true
circleDB.Lng_Data.Float64 = circle.Lng
circleDB.Lng_Data.Valid = true
circleDB.Name_Data.String = circle.Name
circleDB.Name_Data.Valid = true
circleDB.Radius_Data.Float64 = circle.Radius
circleDB.Radius_Data.Valid = true
circleDB.ColorEnum_Data.String = circle.ColorEnum.ToString()
circleDB.ColorEnum_Data.Valid = true
circleDB.DashStyleEnum_Data.String = circle.DashStyleEnum.ToString()
circleDB.DashStyleEnum_Data.Valid = true
}
// CopyBasicFieldsFromCircleWOP
func (circleDB *CircleDB) CopyBasicFieldsFromCircleWOP(circle *CircleWOP) {
// insertion point for fields commit
circleDB.Lat_Data.Float64 = circle.Lat
circleDB.Lat_Data.Valid = true
circleDB.Lng_Data.Float64 = circle.Lng
circleDB.Lng_Data.Valid = true
circleDB.Name_Data.String = circle.Name
circleDB.Name_Data.Valid = true
circleDB.Radius_Data.Float64 = circle.Radius
circleDB.Radius_Data.Valid = true
circleDB.ColorEnum_Data.String = circle.ColorEnum.ToString()
circleDB.ColorEnum_Data.Valid = true
circleDB.DashStyleEnum_Data.String = circle.DashStyleEnum.ToString()
circleDB.DashStyleEnum_Data.Valid = true
}
// CopyBasicFieldsToCircle
func (circleDB *CircleDB) CopyBasicFieldsToCircle(circle *models.Circle) {
// insertion point for checkout of basic fields (back repo to stage)
circle.Lat = circleDB.Lat_Data.Float64
circle.Lng = circleDB.Lng_Data.Float64
circle.Name = circleDB.Name_Data.String
circle.Radius = circleDB.Radius_Data.Float64
circle.ColorEnum.FromString(circleDB.ColorEnum_Data.String)
circle.DashStyleEnum.FromString(circleDB.DashStyleEnum_Data.String)
}
// CopyBasicFieldsToCircle_WOP
func (circleDB *CircleDB) CopyBasicFieldsToCircle_WOP(circle *models.Circle_WOP) {
// insertion point for checkout of basic fields (back repo to stage)
circle.Lat = circleDB.Lat_Data.Float64
circle.Lng = circleDB.Lng_Data.Float64
circle.Name = circleDB.Name_Data.String
circle.Radius = circleDB.Radius_Data.Float64
circle.ColorEnum.FromString(circleDB.ColorEnum_Data.String)
circle.DashStyleEnum.FromString(circleDB.DashStyleEnum_Data.String)
}
// CopyBasicFieldsToCircleWOP
func (circleDB *CircleDB) CopyBasicFieldsToCircleWOP(circle *CircleWOP) {
circle.ID = int(circleDB.ID)
// insertion point for checkout of basic fields (back repo to stage)
circle.Lat = circleDB.Lat_Data.Float64
circle.Lng = circleDB.Lng_Data.Float64
circle.Name = circleDB.Name_Data.String
circle.Radius = circleDB.Radius_Data.Float64
circle.ColorEnum.FromString(circleDB.ColorEnum_Data.String)
circle.DashStyleEnum.FromString(circleDB.DashStyleEnum_Data.String)
}
// Backup generates a json file from a slice of all CircleDB instances in the backrepo
func (backRepoCircle *BackRepoCircleStruct) Backup(dirPath string) {
filename := filepath.Join(dirPath, "CircleDB.json")
// organize the map into an array with increasing IDs, in order to have repoductible
// backup file
forBackup := make([]*CircleDB, 0)
for _, circleDB := range backRepoCircle.Map_CircleDBID_CircleDB {
forBackup = append(forBackup, circleDB)
}
sort.Slice(forBackup[:], func(i, j int) bool {
return forBackup[i].ID < forBackup[j].ID
})
file, err := json.MarshalIndent(forBackup, "", " ")
if err != nil {
log.Fatal("Cannot json Circle ", filename, " ", err.Error())
}
err = ioutil.WriteFile(filename, file, 0644)
if err != nil {
log.Fatal("Cannot write the json Circle file", err.Error())
}
}
// Backup generates a json file from a slice of all CircleDB instances in the backrepo
func (backRepoCircle *BackRepoCircleStruct) BackupXL(file *xlsx.File) {
// organize the map into an array with increasing IDs, in order to have repoductible
// backup file
forBackup := make([]*CircleDB, 0)
for _, circleDB := range backRepoCircle.Map_CircleDBID_CircleDB {
forBackup = append(forBackup, circleDB)
}
sort.Slice(forBackup[:], func(i, j int) bool {
return forBackup[i].ID < forBackup[j].ID
})
sh, err := file.AddSheet("Circle")
if err != nil {
log.Fatal("Cannot add XL file", err.Error())
}
_ = sh
row := sh.AddRow()
row.WriteSlice(&Circle_Fields, -1)
for _, circleDB := range forBackup {
var circleWOP CircleWOP
circleDB.CopyBasicFieldsToCircleWOP(&circleWOP)
row := sh.AddRow()
row.WriteStruct(&circleWOP, -1)
}
}
// RestoreXL from the "Circle" sheet all CircleDB instances
func (backRepoCircle *BackRepoCircleStruct) RestoreXLPhaseOne(file *xlsx.File) {
// resets the map
BackRepoCircleid_atBckpTime_newID = make(map[uint]uint)
sh, ok := file.Sheet["Circle"]
_ = sh
if !ok {
log.Fatal(errors.New("sheet not found"))
}
// log.Println("Max row is", sh.MaxRow)
err := sh.ForEachRow(backRepoCircle.rowVisitorCircle)
if err != nil {
log.Fatal("Err=", err)
}
}
func (backRepoCircle *BackRepoCircleStruct) rowVisitorCircle(row *xlsx.Row) error {
log.Printf("row line %d\n", row.GetCoordinate())
log.Println(row)
// skip first line
if row.GetCoordinate() > 0 {
var circleWOP CircleWOP
row.ReadStruct(&circleWOP)
// add the unmarshalled struct to the stage
circleDB := new(CircleDB)
circleDB.CopyBasicFieldsFromCircleWOP(&circleWOP)
circleDB_ID_atBackupTime := circleDB.ID
circleDB.ID = 0
query := backRepoCircle.db.Create(circleDB)
if query.Error != nil {
log.Fatal(query.Error)
}
backRepoCircle.Map_CircleDBID_CircleDB[circleDB.ID] = circleDB
BackRepoCircleid_atBckpTime_newID[circleDB_ID_atBackupTime] = circleDB.ID
}
return nil
}
// RestorePhaseOne read the file "CircleDB.json" in dirPath that stores an array
// of CircleDB and stores it in the database
// the map BackRepoCircleid_atBckpTime_newID is updated accordingly
func (backRepoCircle *BackRepoCircleStruct) RestorePhaseOne(dirPath string) {
// resets the map
BackRepoCircleid_atBckpTime_newID = make(map[uint]uint)
filename := filepath.Join(dirPath, "CircleDB.json")
jsonFile, err := os.Open(filename)
// if we os.Open returns an error then handle it
if err != nil {
log.Fatal("Cannot restore/open the json Circle file", filename, " ", err.Error())
}
// read our opened jsonFile as a byte array.
byteValue, _ := ioutil.ReadAll(jsonFile)
var forRestore []*CircleDB
err = json.Unmarshal(byteValue, &forRestore)
// fill up Map_CircleDBID_CircleDB
for _, circleDB := range forRestore {
circleDB_ID_atBackupTime := circleDB.ID
circleDB.ID = 0
query := backRepoCircle.db.Create(circleDB)
if query.Error != nil {
log.Fatal(query.Error)
}
backRepoCircle.Map_CircleDBID_CircleDB[circleDB.ID] = circleDB
BackRepoCircleid_atBckpTime_newID[circleDB_ID_atBackupTime] = circleDB.ID
}
if err != nil {
log.Fatal("Cannot restore/unmarshall json Circle file", err.Error())
}
}
// RestorePhaseTwo uses all map BackRepo<Circle>id_atBckpTime_newID
// to compute new index
func (backRepoCircle *BackRepoCircleStruct) RestorePhaseTwo() {
for _, circleDB := range backRepoCircle.Map_CircleDBID_CircleDB {
// next line of code is to avert unused variable compilation error
_ = circleDB
// insertion point for reindexing pointers encoding
// reindexing LayerGroup field
if circleDB.LayerGroupID.Int64 != 0 {
circleDB.LayerGroupID.Int64 = int64(BackRepoLayerGroupid_atBckpTime_newID[uint(circleDB.LayerGroupID.Int64)])
circleDB.LayerGroupID.Valid = true
}
// update databse with new index encoding
query := backRepoCircle.db.Model(circleDB).Updates(*circleDB)
if query.Error != nil {
log.Fatal(query.Error)
}
}
}
// BackRepoCircle.ResetReversePointers commits all staged instances of Circle to the BackRepo
// Phase Two is the update of instance with the field in the database
func (backRepoCircle *BackRepoCircleStruct) ResetReversePointers(backRepo *BackRepoStruct) (Error error) {
for idx, circle := range backRepoCircle.Map_CircleDBID_CirclePtr {
backRepoCircle.ResetReversePointersInstance(backRepo, idx, circle)
}
return
}
func (backRepoCircle *BackRepoCircleStruct) ResetReversePointersInstance(backRepo *BackRepoStruct, idx uint, circle *models.Circle) (Error error) {
// fetch matching circleDB
if circleDB, ok := backRepoCircle.Map_CircleDBID_CircleDB[idx]; ok {
_ = circleDB // to avoid unused variable error if there are no reverse to reset
// insertion point for reverse pointers reset
// end of insertion point for reverse pointers reset
}
return
}
// this field is used during the restauration process.
// it stores the ID at the backup time and is used for renumbering
var BackRepoCircleid_atBckpTime_newID map[uint]uint