gotosocial/internal/db/bundb/status.go
kim 7ec1e1332e
[performance] overhaul struct (+ result) caching library for simplicity, performance and multiple-result lookups (#2535)
* rewrite cache library as codeberg.org/gruf/go-structr, implement in gotosocial

* use actual go-structr release version (not just commit hash)

* revert go toolchain changes (damn you go for auto changing this)

* fix go mod woes

* ensure %w is used in calls to errs.Appendf()

* fix error checking

* fix possible panic

* remove unnecessary start/stop functions, move to main Cache{} struct, add note regarding which caches require start/stop

* fix copy-paste artifact... 😇

* fix all comment copy-paste artifacts

* remove dropID() function, now we can just use slices.DeleteFunc()

* use util.Deduplicate() instead of collate(), move collate to util

* move orderByIDs() to util package and "generify"

* add a util.DeleteIf() function, use this to delete entries on failed population

* use slices.DeleteFunc() instead of util.DeleteIf() (i had the logic mixed up in my head somehow lol)

* add note about how collate differs from deduplicate
2024-01-19 12:57:29 +00:00

703 lines
19 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bundb
import (
"context"
"errors"
"slices"
"time"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/uptrace/bun"
)
type statusDB struct {
db *DB
state *state.State
}
func (s *statusDB) GetStatusByID(ctx context.Context, id string) (*gtsmodel.Status, error) {
return s.getStatus(
ctx,
"ID",
func(status *gtsmodel.Status) error {
return s.db.NewSelect().Model(status).Where("? = ?", bun.Ident("status.id"), id).Scan(ctx)
},
id,
)
}
func (s *statusDB) GetStatusesByIDs(ctx context.Context, ids []string) ([]*gtsmodel.Status, error) {
// Preallocate at-worst possible length.
uncached := make([]string, 0, len(ids))
// Load all status IDs via cache loader callbacks.
statuses, err := s.state.Caches.GTS.Status.Load("ID",
// Load cached + check for uncached.
func(load func(keyParts ...any) bool) {
for _, id := range ids {
if !load(id) {
uncached = append(uncached, id)
}
}
},
// Uncached statuses loader function.
func() ([]*gtsmodel.Status, error) {
// Preallocate expected length of uncached statuses.
statuses := make([]*gtsmodel.Status, 0, len(uncached))
// Perform database query scanning
// the remaining (uncached) status IDs.
if err := s.db.NewSelect().
Model(&statuses).
Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
Scan(ctx); err != nil {
return nil, err
}
return statuses, nil
},
)
if err != nil {
return nil, err
}
// Reorder the statuses by their
// IDs to ensure in correct order.
getID := func(s *gtsmodel.Status) string { return s.ID }
util.OrderBy(statuses, ids, getID)
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return statuses, nil
}
// Populate all loaded statuses, removing those we fail to
// populate (removes needing so many nil checks everywhere).
statuses = slices.DeleteFunc(statuses, func(status *gtsmodel.Status) bool {
if err := s.PopulateStatus(ctx, status); err != nil {
log.Errorf(ctx, "error populating status %s: %v", status.ID, err)
return true
}
return false
})
return statuses, nil
}
func (s *statusDB) GetStatusByURI(ctx context.Context, uri string) (*gtsmodel.Status, error) {
return s.getStatus(
ctx,
"URI",
func(status *gtsmodel.Status) error {
return s.db.NewSelect().Model(status).Where("? = ?", bun.Ident("status.uri"), uri).Scan(ctx)
},
uri,
)
}
func (s *statusDB) GetStatusByURL(ctx context.Context, url string) (*gtsmodel.Status, error) {
return s.getStatus(
ctx,
"URL",
func(status *gtsmodel.Status) error {
return s.db.NewSelect().Model(status).Where("? = ?", bun.Ident("status.url"), url).Scan(ctx)
},
url,
)
}
func (s *statusDB) GetStatusByPollID(ctx context.Context, pollID string) (*gtsmodel.Status, error) {
return s.getStatus(
ctx,
"PollID",
func(status *gtsmodel.Status) error {
return s.db.NewSelect().Model(status).Where("? = ?", bun.Ident("status.poll_id"), pollID).Scan(ctx)
},
pollID,
)
}
func (s *statusDB) GetStatusBoost(ctx context.Context, boostOfID string, byAccountID string) (*gtsmodel.Status, error) {
return s.getStatus(
ctx,
"BoostOfID,AccountID",
func(status *gtsmodel.Status) error {
return s.db.NewSelect().Model(status).
Where("status.boost_of_id = ?", boostOfID).
Where("status.account_id = ?", byAccountID).
// Our old code actually allowed a status to
// be boosted multiple times by the same author,
// so limit our query + order to fetch latest.
Order("status.id DESC"). // our IDs are timestamped
Limit(1).
Scan(ctx)
},
boostOfID, byAccountID,
)
}
func (s *statusDB) getStatus(ctx context.Context, lookup string, dbQuery func(*gtsmodel.Status) error, keyParts ...any) (*gtsmodel.Status, error) {
// Fetch status from database cache with loader callback
status, err := s.state.Caches.GTS.Status.LoadOne(lookup, func() (*gtsmodel.Status, error) {
var status gtsmodel.Status
// Not cached! Perform database query.
if err := dbQuery(&status); err != nil {
return nil, err
}
return &status, nil
}, keyParts...)
if err != nil {
return nil, err
}
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return status, nil
}
// Further populate the status fields where applicable.
if err := s.PopulateStatus(ctx, status); err != nil {
return nil, err
}
return status, nil
}
func (s *statusDB) PopulateStatus(ctx context.Context, status *gtsmodel.Status) error {
var (
err error
errs = gtserror.NewMultiError(9)
)
if status.Account == nil {
// Status author is not set, fetch from database.
status.Account, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
status.AccountID,
)
if err != nil {
errs.Appendf("error populating status author: %w", err)
}
}
if status.InReplyToID != "" {
if status.InReplyTo == nil {
// Status parent is not set, fetch from database.
status.InReplyTo, err = s.GetStatusByID(
gtscontext.SetBarebones(ctx),
status.InReplyToID,
)
if err != nil {
errs.Appendf("error populating status parent: %w", err)
}
}
if status.InReplyToAccount == nil {
// Status parent author is not set, fetch from database.
status.InReplyToAccount, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
status.InReplyToAccountID,
)
if err != nil {
errs.Appendf("error populating status parent author: %w", err)
}
}
}
if status.BoostOfID != "" {
if status.BoostOf == nil {
// Status boost is not set, fetch from database.
status.BoostOf, err = s.GetStatusByID(
gtscontext.SetBarebones(ctx),
status.BoostOfID,
)
if err != nil {
errs.Appendf("error populating status boost: %w", err)
}
}
if status.BoostOfAccount == nil {
// Status boost author is not set, fetch from database.
status.BoostOfAccount, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
status.BoostOfAccountID,
)
if err != nil {
errs.Appendf("error populating status boost author: %w", err)
}
}
}
if status.PollID != "" && status.Poll == nil {
// Status poll is not set, fetch from database.
status.Poll, err = s.state.DB.GetPollByID(
gtscontext.SetBarebones(ctx),
status.PollID,
)
if err != nil {
errs.Appendf("error populating status poll: %w", err)
}
}
if !status.AttachmentsPopulated() {
// Status attachments are out-of-date with IDs, repopulate.
status.Attachments, err = s.state.DB.GetAttachmentsByIDs(
ctx, // these are already barebones
status.AttachmentIDs,
)
if err != nil {
errs.Appendf("error populating status attachments: %w", err)
}
}
if !status.TagsPopulated() {
// Status tags are out-of-date with IDs, repopulate.
status.Tags, err = s.state.DB.GetTags(
ctx,
status.TagIDs,
)
if err != nil {
errs.Appendf("error populating status tags: %w", err)
}
}
if !status.MentionsPopulated() {
// Status mentions are out-of-date with IDs, repopulate.
status.Mentions, err = s.state.DB.GetMentions(
ctx, // leave fully populated for now
status.MentionIDs,
)
if err != nil {
errs.Appendf("error populating status mentions: %w", err)
}
}
if !status.EmojisPopulated() {
// Status emojis are out-of-date with IDs, repopulate.
status.Emojis, err = s.state.DB.GetEmojisByIDs(
ctx, // these are already barebones
status.EmojiIDs,
)
if err != nil {
errs.Appendf("error populating status emojis: %w", err)
}
}
if status.CreatedWithApplicationID != "" && status.CreatedWithApplication == nil {
// Populate the status' expected CreatedWithApplication (not always set).
status.CreatedWithApplication, err = s.state.DB.GetApplicationByID(
ctx, // these are already barebones
status.CreatedWithApplicationID,
)
if err != nil {
errs.Appendf("error populating status application: %w", err)
}
}
return errs.Combine()
}
func (s *statusDB) PutStatus(ctx context.Context, status *gtsmodel.Status) error {
return s.state.Caches.GTS.Status.Store(status, func() error {
// It is safe to run this database transaction within cache.Store
// as the cache does not attempt a mutex lock until AFTER hook.
//
return s.db.RunInTx(ctx, func(tx Tx) error {
// create links between this status and any emojis it uses
for _, i := range status.EmojiIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToEmoji{
StatusID: status.ID,
EmojiID: i,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("status_id"), bun.Ident("emoji_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// create links between this status and any tags it uses
for _, i := range status.TagIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToTag{
StatusID: status.ID,
TagID: i,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("status_id"), bun.Ident("tag_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// change the status ID of the media attachments to the new status
for _, a := range status.Attachments {
a.StatusID = status.ID
a.UpdatedAt = time.Now()
if _, err := tx.
NewUpdate().
Model(a).
Column("status_id", "updated_at").
Where("? = ?", bun.Ident("media_attachment.id"), a.ID).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// If the status is threaded, create
// link between thread and status.
if status.ThreadID != "" {
if _, err := tx.
NewInsert().
Model(&gtsmodel.ThreadToStatus{
ThreadID: status.ThreadID,
StatusID: status.ID,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("thread_id"), bun.Ident("status_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// Finally, insert the status
_, err := tx.NewInsert().Model(status).Exec(ctx)
return err
})
})
}
func (s *statusDB) UpdateStatus(ctx context.Context, status *gtsmodel.Status, columns ...string) error {
status.UpdatedAt = time.Now()
if len(columns) > 0 {
// If we're updating by column, ensure "updated_at" is included.
columns = append(columns, "updated_at")
}
return s.state.Caches.GTS.Status.Store(status, func() error {
// It is safe to run this database transaction within cache.Store
// as the cache does not attempt a mutex lock until AFTER hook.
//
return s.db.RunInTx(ctx, func(tx Tx) error {
// create links between this status and any emojis it uses
for _, i := range status.EmojiIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToEmoji{
StatusID: status.ID,
EmojiID: i,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("status_id"), bun.Ident("emoji_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// create links between this status and any tags it uses
for _, i := range status.TagIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToTag{
StatusID: status.ID,
TagID: i,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("status_id"), bun.Ident("tag_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// change the status ID of the media attachments to the new status
for _, a := range status.Attachments {
a.StatusID = status.ID
a.UpdatedAt = time.Now()
if _, err := tx.
NewUpdate().
Model(a).
Where("? = ?", bun.Ident("media_attachment.id"), a.ID).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// If the status is threaded, create
// link between thread and status.
if status.ThreadID != "" {
if _, err := tx.
NewInsert().
Model(&gtsmodel.ThreadToStatus{
ThreadID: status.ThreadID,
StatusID: status.ID,
}).
On("CONFLICT (?, ?) DO NOTHING", bun.Ident("thread_id"), bun.Ident("status_id")).
Exec(ctx); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// Finally, update the status
_, err := tx.
NewUpdate().
Model(status).
Column(columns...).
Where("? = ?", bun.Ident("status.id"), status.ID).
Exec(ctx)
return err
})
})
}
func (s *statusDB) DeleteStatusByID(ctx context.Context, id string) error {
// Load status into cache before attempting a delete,
// as we need it cached in order to trigger the invalidate
// callback. This in turn invalidates others.
_, err := s.GetStatusByID(
gtscontext.SetBarebones(ctx),
id,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
// NOTE: even if db.ErrNoEntries is returned, we
// still run the below transaction to ensure related
// objects are appropriately deleted.
return err
}
// On return ensure status invalidated from cache.
defer s.state.Caches.GTS.Status.Invalidate("ID", id)
return s.db.RunInTx(ctx, func(tx Tx) error {
// delete links between this status and any emojis it uses
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("status_to_emojis"), bun.Ident("status_to_emoji")).
Where("? = ?", bun.Ident("status_to_emoji.status_id"), id).
Exec(ctx); err != nil {
return err
}
// delete links between this status and any tags it uses
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("status_to_tags"), bun.Ident("status_to_tag")).
Where("? = ?", bun.Ident("status_to_tag.status_id"), id).
Exec(ctx); err != nil {
return err
}
// Delete links between this status
// and any threads it was a part of.
_, err = tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("thread_to_statuses"), bun.Ident("thread_to_status")).
Where("? = ?", bun.Ident("thread_to_status.status_id"), id).
Exec(ctx)
if err != nil {
return err
}
// delete the status itself
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Where("? = ?", bun.Ident("status.id"), id).
Exec(ctx); err != nil {
return err
}
return nil
})
}
func (s *statusDB) GetStatusesUsingEmoji(ctx context.Context, emojiID string) ([]*gtsmodel.Status, error) {
var statusIDs []string
// SELECT all statuses using this emoji,
// using a relational table for improved perf.
if _, err := s.db.NewSelect().
Table("status_to_emojis").
Column("status_id").
Where("? = ?", bun.Ident("emoji_id"), emojiID).
Exec(ctx, &statusIDs); err != nil {
return nil, err
}
// Convert status IDs into status objects.
return s.GetStatusesByIDs(ctx, statusIDs)
}
func (s *statusDB) GetStatusParents(ctx context.Context, status *gtsmodel.Status) ([]*gtsmodel.Status, error) {
var parents []*gtsmodel.Status
for id := status.InReplyToID; id != ""; {
parent, err := s.GetStatusByID(ctx, id)
if err != nil {
return nil, err
}
// Append parent status to slice
parents = append(parents, parent)
// Set the next parent ID
id = parent.InReplyToID
}
return parents, nil
}
func (s *statusDB) GetStatusChildren(ctx context.Context, statusID string) ([]*gtsmodel.Status, error) {
// Get all replies for the currently set status.
replies, err := s.GetStatusReplies(ctx, statusID)
if err != nil {
return nil, err
}
// Make estimated preallocation based on direct replies.
children := make([]*gtsmodel.Status, 0, len(replies)*2)
for _, status := range replies {
// Append status to children.
children = append(children, status)
// Further, recursively get all children for this reply.
grandChildren, err := s.GetStatusChildren(ctx, status.ID)
if err != nil {
return nil, err
}
// Append all sub children after status.
children = append(children, grandChildren...)
}
return children, nil
}
func (s *statusDB) GetStatusReplies(ctx context.Context, statusID string) ([]*gtsmodel.Status, error) {
statusIDs, err := s.getStatusReplyIDs(ctx, statusID)
if err != nil {
return nil, err
}
return s.GetStatusesByIDs(ctx, statusIDs)
}
func (s *statusDB) CountStatusReplies(ctx context.Context, statusID string) (int, error) {
statusIDs, err := s.getStatusReplyIDs(ctx, statusID)
return len(statusIDs), err
}
func (s *statusDB) getStatusReplyIDs(ctx context.Context, statusID string) ([]string, error) {
return s.state.Caches.GTS.InReplyToIDs.Load(statusID, func() ([]string, error) {
var statusIDs []string
// Status reply IDs not in cache, perform DB query!
if err := s.db.
NewSelect().
Table("statuses").
Column("id").
Where("? = ?", bun.Ident("in_reply_to_id"), statusID).
Order("id DESC").
Scan(ctx, &statusIDs); err != nil {
return nil, err
}
return statusIDs, nil
})
}
func (s *statusDB) GetStatusBoosts(ctx context.Context, statusID string) ([]*gtsmodel.Status, error) {
statusIDs, err := s.getStatusBoostIDs(ctx, statusID)
if err != nil {
return nil, err
}
return s.GetStatusesByIDs(ctx, statusIDs)
}
func (s *statusDB) IsStatusBoostedBy(ctx context.Context, statusID string, accountID string) (bool, error) {
boost, err := s.GetStatusBoost(
gtscontext.SetBarebones(ctx),
statusID,
accountID,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return false, err
}
return (boost != nil), nil
}
func (s *statusDB) CountStatusBoosts(ctx context.Context, statusID string) (int, error) {
statusIDs, err := s.getStatusBoostIDs(ctx, statusID)
return len(statusIDs), err
}
func (s *statusDB) getStatusBoostIDs(ctx context.Context, statusID string) ([]string, error) {
return s.state.Caches.GTS.BoostOfIDs.Load(statusID, func() ([]string, error) {
var statusIDs []string
// Status boost IDs not in cache, perform DB query!
if err := s.db.
NewSelect().
Table("statuses").
Column("id").
Where("? = ?", bun.Ident("boost_of_id"), statusID).
Order("id DESC").
Scan(ctx, &statusIDs); err != nil {
return nil, err
}
return statusIDs, nil
})
}
func (s *statusDB) IsStatusBookmarkedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, error) {
q := s.db.
NewSelect().
TableExpr("? AS ?", bun.Ident("status_bookmarks"), bun.Ident("status_bookmark")).
Where("? = ?", bun.Ident("status_bookmark.status_id"), status.ID).
Where("? = ?", bun.Ident("status_bookmark.account_id"), accountID)
return s.db.Exists(ctx, q)
}