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Pg to bun (#148)

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* start moving to bun

* changing more stuff

* more

* and yet more

* tests passing

* seems stable now

* more big changes

* small fix

* little fixes
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tobi 2021-08-25 15:34:33 +02:00 • committed by GitHub
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210
internal/db/pg/timeline.go
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@ -1,210 +0,0 @@
/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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 pg
import (
"context"
"sort"
"github.com/go-pg/pg/v10"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
type timelineDB struct {
config *config.Config
conn *pg.DB
log *logrus.Logger
cancel context.CancelFunc
}
func (t *timelineDB) GetHomeTimeline(accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, db.Error) {
statuses := []*gtsmodel.Status{}
q := t.conn.Model(&statuses)
q = q.ColumnExpr("status.*").
// Find out who accountID follows.
Join("LEFT JOIN follows AS f ON f.target_account_id = status.account_id").
// Use a WhereGroup here to specify that we want EITHER statuses posted by accounts that accountID follows,
// OR statuses posted by accountID itself (since a user should be able to see their own statuses).
//
// This is equivalent to something like WHERE ... AND (... OR ...)
// See: https://pg.uptrace.dev/queries/#select
WhereGroup(func(q *pg.Query) (*pg.Query, error) {
q = q.WhereOr("f.account_id = ?", accountID).
WhereOr("status.account_id = ?", accountID)
return q, nil
}).
// Sort by highest ID (newest) to lowest ID (oldest)
Order("status.id DESC")
if maxID != "" {
// return only statuses LOWER (ie., older) than maxID
q = q.Where("status.id < ?", maxID)
}
if sinceID != "" {
// return only statuses HIGHER (ie., newer) than sinceID
q = q.Where("status.id > ?", sinceID)
}
if minID != "" {
// return only statuses HIGHER (ie., newer) than minID
q = q.Where("status.id > ?", minID)
}
if local {
// return only statuses posted by local account havers
q = q.Where("status.local = ?", local)
}
if limit > 0 {
// limit amount of statuses returned
q = q.Limit(limit)
}
err := q.Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, db.ErrNoEntries
}
return nil, err
}
if len(statuses) == 0 {
return nil, db.ErrNoEntries
}
return statuses, nil
}
func (t *timelineDB) GetPublicTimeline(accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, db.Error) {
statuses := []*gtsmodel.Status{}
q := t.conn.Model(&statuses).
Where("visibility = ?", gtsmodel.VisibilityPublic).
Where("? IS NULL", pg.Ident("in_reply_to_id")).
Where("? IS NULL", pg.Ident("in_reply_to_uri")).
Where("? IS NULL", pg.Ident("boost_of_id")).
Order("status.id DESC")
if maxID != "" {
q = q.Where("status.id < ?", maxID)
}
if sinceID != "" {
q = q.Where("status.id > ?", sinceID)
}
if minID != "" {
q = q.Where("status.id > ?", minID)
}
if local {
q = q.Where("status.local = ?", local)
}
if limit > 0 {
q = q.Limit(limit)
}
err := q.Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, db.ErrNoEntries
}
return nil, err
}
if len(statuses) == 0 {
return nil, db.ErrNoEntries
}
return statuses, nil
}
// TODO optimize this query and the logic here, because it's slow as balls -- it takes like a literal second to return with a limit of 20!
// It might be worth serving it through a timeline instead of raw DB queries, like we do for Home feeds.
func (t *timelineDB) GetFavedTimeline(accountID string, maxID string, minID string, limit int) ([]*gtsmodel.Status, string, string, db.Error) {
faves := []*gtsmodel.StatusFave{}
fq := t.conn.Model(&faves).
Where("account_id = ?", accountID).
Order("id DESC")
if maxID != "" {
fq = fq.Where("id < ?", maxID)
}
if minID != "" {
fq = fq.Where("id > ?", minID)
}
if limit > 0 {
fq = fq.Limit(limit)
}
err := fq.Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, "", "", db.ErrNoEntries
}
return nil, "", "", err
}
if len(faves) == 0 {
return nil, "", "", db.ErrNoEntries
}
// map[statusID]faveID -- we need this to sort statuses by fave ID rather than their own ID
statusesFavesMap := map[string]string{}
in := []string{}
for _, f := range faves {
statusesFavesMap[f.StatusID] = f.ID
in = append(in, f.StatusID)
}
statuses := []*gtsmodel.Status{}
err = t.conn.Model(&statuses).Where("id IN (?)", pg.In(in)).Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, "", "", db.ErrNoEntries
}
return nil, "", "", err
}
if len(statuses) == 0 {
return nil, "", "", db.ErrNoEntries
}
// arrange statuses by fave ID
sort.Slice(statuses, func(i int, j int) bool {
statusI := statuses[i]
statusJ := statuses[j]
return statusesFavesMap[statusI.ID] < statusesFavesMap[statusJ.ID]
})
nextMaxID := faves[len(faves)-1].ID
prevMinID := faves[0].ID
return statuses, nextMaxID, prevMinID, nil
}