This commit is contained in:
233
internal/repositories/wikiRepository.go
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233
internal/repositories/wikiRepository.go
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package repositories
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import (
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"context"
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"crypto/md5"
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"encoding/json"
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"fmt"
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"github.com/jackc/pgx/v5/pgtype"
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"history-api/internal/gen/sqlc"
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"history-api/internal/models"
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"history-api/pkg/cache"
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"history-api/pkg/constants"
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"history-api/pkg/convert"
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)
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type WikiRepository interface {
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GetByID(ctx context.Context, id pgtype.UUID) (*models.WikiEntity, error)
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GetByIDs(ctx context.Context, ids []string) ([]*models.WikiEntity, error)
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Search(ctx context.Context, params sqlc.SearchWikisParams) ([]*models.WikiEntity, error)
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Create(ctx context.Context, params sqlc.CreateWikiParams) (*models.WikiEntity, error)
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Update(ctx context.Context, params sqlc.UpdateWikiParams) (*models.WikiEntity, error)
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Delete(ctx context.Context, id pgtype.UUID) error
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CreateEntityWikis(ctx context.Context, params sqlc.CreateEntityWikisParams) error
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BulkDeleteEntityWikisByEntityId(ctx context.Context, entityId pgtype.UUID) error
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}
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type wikiRepository struct {
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q *sqlc.Queries
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c cache.Cache
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}
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func NewWikiRepository(db sqlc.DBTX, c cache.Cache) WikiRepository {
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return &wikiRepository{
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q: sqlc.New(db),
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c: c,
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}
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}
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func (r *wikiRepository) generateQueryKey(prefix string, params any) string {
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b, _ := json.Marshal(params)
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hash := fmt.Sprintf("%x", md5.Sum(b))
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return fmt.Sprintf("%s:%s", prefix, hash)
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}
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func (r *wikiRepository) getByIDsWithFallback(ctx context.Context, ids []string) ([]*models.WikiEntity, error) {
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if len(ids) == 0 {
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return []*models.WikiEntity{}, nil
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}
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keys := make([]string, len(ids))
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for i, id := range ids {
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keys[i] = fmt.Sprintf("wiki:id:%s", id)
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}
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raws := r.c.MGet(ctx, keys...)
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var wikis []*models.WikiEntity
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missingToCache := make(map[string]any)
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for i, b := range raws {
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if len(b) > 0 {
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var w models.WikiEntity
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if err := json.Unmarshal(b, &w); err == nil {
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wikis = append(wikis, &w)
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}
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} else {
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pgId := pgtype.UUID{}
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err := pgId.Scan(ids[i])
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if err != nil {
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continue
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}
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dbWiki, err := r.GetByID(ctx, pgId)
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if err == nil && dbWiki != nil {
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wikis = append(wikis, dbWiki)
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missingToCache[keys[i]] = dbWiki
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}
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}
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}
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if len(missingToCache) > 0 {
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_ = r.c.MSet(ctx, missingToCache, constants.NormalCacheDuration)
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}
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return wikis, nil
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}
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func (r *wikiRepository) GetByIDs(ctx context.Context, ids []string) ([]*models.WikiEntity, error) {
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return r.getByIDsWithFallback(ctx, ids)
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}
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func (r *wikiRepository) GetByID(ctx context.Context, id pgtype.UUID) (*models.WikiEntity, error) {
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cacheId := fmt.Sprintf("wiki:id:%s", convert.UUIDToString(id))
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var wiki models.WikiEntity
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err := r.c.Get(ctx, cacheId, &wiki)
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if err == nil {
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_ = r.c.Set(ctx, cacheId, wiki, constants.NormalCacheDuration)
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return &wiki, nil
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}
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row, err := r.q.GetWikiById(ctx, id)
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if err != nil {
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return nil, err
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}
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wiki = models.WikiEntity{
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ID: convert.UUIDToString(row.ID),
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Title: convert.TextToString(row.Title),
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Content: convert.TextToString(row.Content),
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IsDeleted: row.IsDeleted,
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CreatedAt: convert.TimeToPtr(row.CreatedAt),
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UpdatedAt: convert.TimeToPtr(row.UpdatedAt),
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}
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_ = r.c.Set(ctx, cacheId, wiki, constants.NormalCacheDuration)
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return &wiki, nil
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}
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func (r *wikiRepository) Search(ctx context.Context, params sqlc.SearchWikisParams) ([]*models.WikiEntity, error) {
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queryKey := r.generateQueryKey("wiki:search", params)
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var cachedIDs []string
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if err := r.c.Get(ctx, queryKey, &cachedIDs); err == nil && len(cachedIDs) > 0 {
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return r.getByIDsWithFallback(ctx, cachedIDs)
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}
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rows, err := r.q.SearchWikis(ctx, params)
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if err != nil {
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return nil, err
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}
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var wikis []*models.WikiEntity
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var ids []string
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wikiToCache := make(map[string]any)
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for _, row := range rows {
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wiki := &models.WikiEntity{
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ID: convert.UUIDToString(row.ID),
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Title: convert.TextToString(row.Title),
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Content: convert.TextToString(row.Content),
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IsDeleted: row.IsDeleted,
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CreatedAt: convert.TimeToPtr(row.CreatedAt),
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UpdatedAt: convert.TimeToPtr(row.UpdatedAt),
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}
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ids = append(ids, wiki.ID)
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wikis = append(wikis, wiki)
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wikiToCache[fmt.Sprintf("wiki:id:%s", wiki.ID)] = wiki
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}
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if len(wikiToCache) > 0 {
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_ = r.c.MSet(ctx, wikiToCache, constants.NormalCacheDuration)
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}
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if len(ids) > 0 {
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_ = r.c.Set(ctx, queryKey, ids, constants.ListCacheDuration)
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}
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return wikis, nil
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}
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func (r *wikiRepository) Create(ctx context.Context, params sqlc.CreateWikiParams) (*models.WikiEntity, error) {
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row, err := r.q.CreateWiki(ctx, params)
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if err != nil {
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return nil, err
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}
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wiki := models.WikiEntity{
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ID: convert.UUIDToString(row.ID),
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Title: convert.TextToString(row.Title),
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Content: convert.TextToString(row.Content),
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IsDeleted: row.IsDeleted,
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CreatedAt: convert.TimeToPtr(row.CreatedAt),
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UpdatedAt: convert.TimeToPtr(row.UpdatedAt),
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}
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_ = r.c.Set(ctx, fmt.Sprintf("wiki:id:%s", wiki.ID), wiki, constants.NormalCacheDuration)
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go func() {
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bgCtx := context.Background()
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_ = r.c.DelByPattern(bgCtx, "wiki:search*")
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}()
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return &wiki, nil
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}
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func (r *wikiRepository) Update(ctx context.Context, params sqlc.UpdateWikiParams) (*models.WikiEntity, error) {
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row, err := r.q.UpdateWiki(ctx, params)
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if err != nil {
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return nil, err
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}
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wiki := models.WikiEntity{
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ID: convert.UUIDToString(row.ID),
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Title: convert.TextToString(row.Title),
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Content: convert.TextToString(row.Content),
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IsDeleted: row.IsDeleted,
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CreatedAt: convert.TimeToPtr(row.CreatedAt),
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UpdatedAt: convert.TimeToPtr(row.UpdatedAt),
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}
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_ = r.c.Set(ctx, fmt.Sprintf("wiki:id:%s", wiki.ID), wiki, constants.NormalCacheDuration)
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return &wiki, nil
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}
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func (r *wikiRepository) Delete(ctx context.Context, id pgtype.UUID) error {
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err := r.q.DeleteWiki(ctx, id)
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if err != nil {
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return err
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}
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_ = r.c.Del(ctx, fmt.Sprintf("wiki:id:%s", convert.UUIDToString(id)))
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go func() {
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_ = r.c.DelByPattern(context.Background(), "wiki:search*")
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}()
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return nil
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}
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func (r *wikiRepository) CreateEntityWikis(ctx context.Context, params sqlc.CreateEntityWikisParams) error {
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err := r.q.CreateEntityWikis(ctx, params)
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if err != nil {
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return err
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}
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return nil
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}
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func (r *wikiRepository) BulkDeleteEntityWikisByEntityId(ctx context.Context, entityId pgtype.UUID) error {
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wikiIDs, err := r.q.BulkDeleteEntityWikisByEntityId(ctx, entityId)
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if err != nil {
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return err
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}
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if len(wikiIDs) > 0 {
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keys := make([]string, len(wikiIDs))
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for i, id := range wikiIDs {
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keys[i] = fmt.Sprintf("wiki:id:%s", convert.UUIDToString(id))
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}
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go func() {
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_ = r.c.Del(context.Background(), keys...)
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}()
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}
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return nil
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}
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