mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-23 10:42:12 +00:00
2796a2e82f
* update go-fed * do the things * remove unused columns from tags * update to latest lingo from main * further tag shenanigans * serve stub page at tag endpoint * we did it lads * tests, oh tests, ohhh tests, oh tests (doo doo doo doo) * swagger docs * document hashtag usage + federation * instanceGet * don't bother parsing tag href * rename whereStartsWith -> whereStartsLike * remove GetOrCreateTag * dont cache status tag timelineability
521 lines
13 KiB
Go
521 lines
13 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package bundb
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import (
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"context"
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"fmt"
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"time"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/id"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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"github.com/superseriousbusiness/gotosocial/internal/state"
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"github.com/uptrace/bun"
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"golang.org/x/exp/slices"
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)
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type timelineDB struct {
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db *WrappedDB
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state *state.State
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}
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func (t *timelineDB) GetHomeTimeline(ctx context.Context, accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error) {
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// Ensure reasonable
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if limit < 0 {
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limit = 0
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}
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// Make educated guess for slice size
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var (
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statusIDs = make([]string, 0, limit)
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frontToBack = true
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)
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q := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
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// Select only IDs from table
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Column("status.id")
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if maxID == "" || maxID >= id.Highest {
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const future = 24 * time.Hour
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var err error
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// don't return statuses more than 24hr in the future
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maxID, err = id.NewULIDFromTime(time.Now().Add(future))
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if err != nil {
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return nil, err
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}
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}
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// return only statuses LOWER (ie., older) than maxID
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q = q.Where("? < ?", bun.Ident("status.id"), maxID)
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if sinceID != "" {
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// return only statuses HIGHER (ie., newer) than sinceID
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q = q.Where("? > ?", bun.Ident("status.id"), sinceID)
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}
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if minID != "" {
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// return only statuses HIGHER (ie., newer) than minID
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q = q.Where("? > ?", bun.Ident("status.id"), minID)
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// page up
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frontToBack = false
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}
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if local {
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// return only statuses posted by local account havers
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q = q.Where("? = ?", bun.Ident("status.local"), local)
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}
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if limit > 0 {
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// limit amount of statuses returned
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q = q.Limit(limit)
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}
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if frontToBack {
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// Page down.
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q = q.Order("status.id DESC")
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} else {
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// Page up.
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q = q.Order("status.id ASC")
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}
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// Subquery to select target (followed) account
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// IDs from follows owned by given accountID.
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subQ := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("follows"), bun.Ident("follow")).
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Column("follow.target_account_id").
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Where("? = ?", bun.Ident("follow.account_id"), accountID)
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// Use the subquery in a WhereGroup here to specify that we want EITHER
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// - statuses posted by accountID itself OR
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// - statuses posted by accounts that accountID follows
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q = q.WhereGroup(" AND ", func(q *bun.SelectQuery) *bun.SelectQuery {
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return q.
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Where("? = ?", bun.Ident("status.account_id"), accountID).
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WhereOr("? IN (?)", bun.Ident("status.account_id"), subQ)
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})
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if err := q.Scan(ctx, &statusIDs); err != nil {
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return nil, t.db.ProcessError(err)
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}
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if len(statusIDs) == 0 {
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return nil, nil
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}
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// If we're paging up, we still want statuses
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// to be sorted by ID desc, so reverse ids slice.
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// https://zchee.github.io/golang-wiki/SliceTricks/#reversing
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if !frontToBack {
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for l, r := 0, len(statusIDs)-1; l < r; l, r = l+1, r-1 {
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statusIDs[l], statusIDs[r] = statusIDs[r], statusIDs[l]
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}
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}
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statuses := make([]*gtsmodel.Status, 0, len(statusIDs))
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for _, id := range statusIDs {
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// Fetch status from db for ID
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status, err := t.state.DB.GetStatusByID(ctx, id)
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if err != nil {
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log.Errorf(ctx, "error fetching status %q: %v", id, err)
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continue
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}
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// Append status to slice
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statuses = append(statuses, status)
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}
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return statuses, nil
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}
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func (t *timelineDB) GetPublicTimeline(ctx context.Context, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error) {
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// Ensure reasonable
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if limit < 0 {
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limit = 0
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}
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// Make educated guess for slice size
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statusIDs := make([]string, 0, limit)
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q := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
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Column("status.id").
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// Public only.
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Where("? = ?", bun.Ident("status.visibility"), gtsmodel.VisibilityPublic).
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// Ignore boosts.
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Where("? IS NULL", bun.Ident("status.boost_of_id")).
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Order("status.id DESC")
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if maxID == "" {
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const future = 24 * time.Hour
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var err error
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// don't return statuses more than 24hr in the future
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maxID, err = id.NewULIDFromTime(time.Now().Add(future))
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if err != nil {
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return nil, err
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}
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}
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// return only statuses LOWER (ie., older) than maxID
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q = q.Where("? < ?", bun.Ident("status.id"), maxID)
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if sinceID != "" {
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q = q.Where("? > ?", bun.Ident("status.id"), sinceID)
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}
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if minID != "" {
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q = q.Where("? > ?", bun.Ident("status.id"), minID)
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}
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if local {
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q = q.Where("? = ?", bun.Ident("status.local"), local)
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}
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if limit > 0 {
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q = q.Limit(limit)
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}
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if err := q.Scan(ctx, &statusIDs); err != nil {
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return nil, t.db.ProcessError(err)
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}
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statuses := make([]*gtsmodel.Status, 0, len(statusIDs))
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for _, id := range statusIDs {
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// Fetch status from db for ID
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status, err := t.state.DB.GetStatusByID(ctx, id)
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if err != nil {
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log.Errorf(ctx, "error fetching status %q: %v", id, err)
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continue
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}
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// Append status to slice
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statuses = append(statuses, status)
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}
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return statuses, nil
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}
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// 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!
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// It might be worth serving it through a timeline instead of raw DB queries, like we do for Home feeds.
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func (t *timelineDB) GetFavedTimeline(ctx context.Context, accountID string, maxID string, minID string, limit int) ([]*gtsmodel.Status, string, string, error) {
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// Ensure reasonable
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if limit < 0 {
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limit = 0
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}
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// Make educated guess for slice size
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faves := make([]*gtsmodel.StatusFave, 0, limit)
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fq := t.db.
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NewSelect().
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Model(&faves).
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Where("? = ?", bun.Ident("status_fave.account_id"), accountID).
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Order("status_fave.id DESC")
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if maxID != "" {
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fq = fq.Where("? < ?", bun.Ident("status_fave.id"), maxID)
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}
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if minID != "" {
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fq = fq.Where("? > ?", bun.Ident("status_fave.id"), minID)
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}
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if limit > 0 {
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fq = fq.Limit(limit)
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}
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err := fq.Scan(ctx)
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if err != nil {
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return nil, "", "", t.db.ProcessError(err)
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}
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if len(faves) == 0 {
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return nil, "", "", db.ErrNoEntries
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}
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// Sort by favourite ID rather than status ID
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slices.SortFunc(faves, func(a, b *gtsmodel.StatusFave) bool {
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return a.ID > b.ID
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})
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statuses := make([]*gtsmodel.Status, 0, len(faves))
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for _, fave := range faves {
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// Fetch status from db for corresponding favourite
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status, err := t.state.DB.GetStatusByID(ctx, fave.StatusID)
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if err != nil {
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log.Errorf(ctx, "error fetching status for fave %q: %v", fave.ID, err)
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continue
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}
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// Append status to slice
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statuses = append(statuses, status)
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}
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nextMaxID := faves[len(faves)-1].ID
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prevMinID := faves[0].ID
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return statuses, nextMaxID, prevMinID, nil
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}
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func (t *timelineDB) GetListTimeline(
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ctx context.Context,
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listID string,
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maxID string,
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sinceID string,
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minID string,
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limit int,
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) ([]*gtsmodel.Status, error) {
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// Ensure reasonable
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if limit < 0 {
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limit = 0
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}
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// Make educated guess for slice size
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var (
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statusIDs = make([]string, 0, limit)
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frontToBack = true
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)
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// Fetch all listEntries entries from the database.
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listEntries, err := t.state.DB.GetListEntries(
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// Don't need actual follows
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// for this, just the IDs.
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gtscontext.SetBarebones(ctx),
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listID,
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"", "", "", 0,
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)
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if err != nil {
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return nil, fmt.Errorf("error getting entries for list %s: %w", listID, err)
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}
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// Extract just the IDs of each follow.
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followIDs := make([]string, 0, len(listEntries))
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for _, listEntry := range listEntries {
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followIDs = append(followIDs, listEntry.FollowID)
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}
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// Select target account IDs from follows.
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subQ := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("follows"), bun.Ident("follow")).
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Column("follow.target_account_id").
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Where("? IN (?)", bun.Ident("follow.id"), bun.In(followIDs))
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// Select only status IDs created
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// by one of the followed accounts.
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q := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
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// Select only IDs from table
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Column("status.id").
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Where("? IN (?)", bun.Ident("status.account_id"), subQ)
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if maxID == "" || maxID >= id.Highest {
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const future = 24 * time.Hour
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var err error
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// don't return statuses more than 24hr in the future
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maxID, err = id.NewULIDFromTime(time.Now().Add(future))
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if err != nil {
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return nil, err
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}
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}
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// return only statuses LOWER (ie., older) than maxID
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q = q.Where("? < ?", bun.Ident("status.id"), maxID)
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if sinceID != "" {
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// return only statuses HIGHER (ie., newer) than sinceID
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q = q.Where("? > ?", bun.Ident("status.id"), sinceID)
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}
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if minID != "" {
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// return only statuses HIGHER (ie., newer) than minID
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q = q.Where("? > ?", bun.Ident("status.id"), minID)
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// page up
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frontToBack = false
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}
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if limit > 0 {
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// limit amount of statuses returned
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q = q.Limit(limit)
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}
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if frontToBack {
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// Page down.
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q = q.Order("status.id DESC")
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} else {
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// Page up.
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q = q.Order("status.id ASC")
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}
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if err := q.Scan(ctx, &statusIDs); err != nil {
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return nil, t.db.ProcessError(err)
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}
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if len(statusIDs) == 0 {
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return nil, nil
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}
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// If we're paging up, we still want statuses
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// to be sorted by ID desc, so reverse ids slice.
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// https://zchee.github.io/golang-wiki/SliceTricks/#reversing
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if !frontToBack {
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for l, r := 0, len(statusIDs)-1; l < r; l, r = l+1, r-1 {
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statusIDs[l], statusIDs[r] = statusIDs[r], statusIDs[l]
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}
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}
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statuses := make([]*gtsmodel.Status, 0, len(statusIDs))
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for _, id := range statusIDs {
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// Fetch status from db for ID
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status, err := t.state.DB.GetStatusByID(ctx, id)
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if err != nil {
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log.Errorf(ctx, "error fetching status %q: %v", id, err)
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continue
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}
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// Append status to slice
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statuses = append(statuses, status)
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}
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return statuses, nil
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}
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func (t *timelineDB) GetTagTimeline(
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ctx context.Context,
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tagID string,
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maxID string,
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sinceID string,
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minID string,
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limit int,
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) ([]*gtsmodel.Status, error) {
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// Ensure reasonable
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if limit < 0 {
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limit = 0
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}
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// Make educated guess for slice size
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var (
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statusIDs = make([]string, 0, limit)
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frontToBack = true
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)
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q := t.db.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("status_to_tags"), bun.Ident("status_to_tag")).
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Column("status_to_tag.status_id").
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// Join with statuses for filtering.
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Join(
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"INNER JOIN ? AS ? ON ? = ?",
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bun.Ident("statuses"), bun.Ident("status"),
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bun.Ident("status.id"), bun.Ident("status_to_tag.status_id"),
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).
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// Public only.
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Where("? = ?", bun.Ident("status.visibility"), gtsmodel.VisibilityPublic).
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// This tag only.
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Where("? = ?", bun.Ident("status_to_tag.tag_id"), tagID)
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if maxID == "" || maxID >= id.Highest {
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const future = 24 * time.Hour
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var err error
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// don't return statuses more than 24hr in the future
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maxID, err = id.NewULIDFromTime(time.Now().Add(future))
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if err != nil {
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return nil, err
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}
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}
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// return only statuses LOWER (ie., older) than maxID
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q = q.Where("? < ?", bun.Ident("status_to_tag.status_id"), maxID)
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if sinceID != "" {
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// return only statuses HIGHER (ie., newer) than sinceID
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q = q.Where("? > ?", bun.Ident("status_to_tag.status_id"), sinceID)
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}
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if minID != "" {
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// return only statuses HIGHER (ie., newer) than minID
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q = q.Where("? > ?", bun.Ident("status_to_tag.status_id"), minID)
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// page up
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frontToBack = false
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}
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if limit > 0 {
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// limit amount of statuses returned
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q = q.Limit(limit)
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}
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if frontToBack {
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// Page down.
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q = q.Order("status_to_tag.status_id DESC")
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} else {
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// Page up.
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q = q.Order("status_to_tag.status_id ASC")
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}
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if err := q.Scan(ctx, &statusIDs); err != nil {
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return nil, t.db.ProcessError(err)
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}
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if len(statusIDs) == 0 {
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return nil, nil
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}
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// If we're paging up, we still want statuses
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// to be sorted by ID desc, so reverse ids slice.
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// https://zchee.github.io/golang-wiki/SliceTricks/#reversing
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|
if !frontToBack {
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for l, r := 0, len(statusIDs)-1; l < r; l, r = l+1, r-1 {
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statusIDs[l], statusIDs[r] = statusIDs[r], statusIDs[l]
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}
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}
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statuses := make([]*gtsmodel.Status, 0, len(statusIDs))
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for _, id := range statusIDs {
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// Fetch status from db for ID
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status, err := t.state.DB.GetStatusByID(ctx, id)
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if err != nil {
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log.Errorf(ctx, "error fetching status %q: %v", id, err)
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continue
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}
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// Append status to slice
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statuses = append(statuses, status)
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}
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return statuses, nil
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}
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