Monorepo for Tangled
appview/{db,state}: delete all duplicate records on delete
Signed-off-by: Seongmin Lee <git@boltless.me>
authored by
Seongmin Lee
and committed by
Tangled
(Jun 29, 2026, 2:19 PM +0300)
b47fffb0
7b818857
+159
-99
+20
-23
appview/db/follow.go
+20
-23
appview/db/follow.go
···
6
6
"strings"
7
7
"time"
8
8
9
+
"github.com/bluesky-social/indigo/atproto/syntax"
9
10
"tangled.org/core/appview/models"
10
11
"tangled.org/core/orm"
11
12
)
···
16
17
return err
17
18
}
18
19
19
-
// Get a follow record
20
-
func GetFollow(e Execer, userDid, subjectDid string) (*models.Follow, error) {
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-
query := `select did, subject_did, created, rkey from follows where did = ? and subject_did = ?`
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row := e.QueryRow(query, userDid, subjectDid)
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-
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var follow models.Follow
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var followedAt string
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err := row.Scan(&follow.UserDid, &follow.SubjectDid, &followedAt, &follow.Rkey)
20
+
// Remove a follow
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+
func DeleteFollow(e Execer, did, subjectDid syntax.DID) ([]syntax.ATURI, error) {
22
+
var deleted []syntax.ATURI
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+
rows, err := e.Query(
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+
`delete from follows
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+
where did = ? and subject_did = ?
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+
returning at_uri`,
27
+
did,
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+
subjectDid,
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+
)
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if err != nil {
28
-
return nil, err
31
+
return nil, fmt.Errorf("deleting follows: %w", err)
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}
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+
defer rows.Close()
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34
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-
followedAtTime, err := time.Parse(time.RFC3339, followedAt)
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-
if err != nil {
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log.Println("unable to determine followed at time")
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follow.FollowedAt = time.Now()
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-
} else {
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-
follow.FollowedAt = followedAtTime
35
+
for rows.Next() {
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+
var aturi syntax.ATURI
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+
if err := rows.Scan(&aturi); err != nil {
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+
return nil, fmt.Errorf("scanning at_uri: %w", err)
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+
}
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+
deleted = append(deleted, aturi)
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}
38
-
39
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return &follow, nil
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-
}
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-
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// Remove a follow
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func DeleteFollow(e Execer, userDid, subjectDid string) error {
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_, err := e.Exec(`delete from follows where did = ? and subject_did = ?`, userDid, subjectDid)
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return err
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+
return deleted, nil
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}
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// Remove a follow
+23
-3
appview/db/reaction.go
+23
-3
appview/db/reaction.go
···
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}
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// Remove a reaction
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func DeleteReaction(e Execer, did string, subjectAt syntax.ATURI, kind models.ReactionKind) error {
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_, err := e.Exec(`delete from reactions where did = ? and subject_at = ? and kind = ?`, did, subjectAt, kind)
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return err
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+
func DeleteReaction(e Execer, did syntax.DID, subjectAt syntax.ATURI, kind models.ReactionKind) ([]syntax.ATURI, error) {
47
+
var deleted []syntax.ATURI
48
+
rows, err := e.Query(
49
+
`delete from reactions
50
+
where did = ? and subject_at = ? and kind = ?
51
+
returning at_uri`,
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+
did,
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+
subjectAt,
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+
kind,
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+
)
56
+
if err != nil {
57
+
return nil, fmt.Errorf("deleting stars: %w", err)
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+
}
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+
defer rows.Close()
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+
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for rows.Next() {
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var aturi syntax.ATURI
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if err := rows.Scan(&aturi); err != nil {
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return nil, fmt.Errorf("scanning at_uri: %w", err)
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+
}
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deleted = append(deleted, aturi)
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}
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return deleted, nil
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}
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// Remove a reaction
+26
-31
appview/db/star.go
+26
-31
appview/db/star.go
···
1
1
package db
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import (
4
+
"database/sql"
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"fmt"
5
-
"log"
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6
"slices"
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7
"strings"
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8
"time"
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9
10
+
"github.com/bluesky-social/indigo/atproto/syntax"
10
11
"tangled.org/core/appview/models"
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"tangled.org/core/appview/pagination"
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13
"tangled.org/core/orm"
···
22
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star.Rkey,
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)
24
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return err
25
-
}
26
-
27
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// Get a star record
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func GetStar(e Execer, did string, subject string) (*models.Star, error) {
29
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query := `
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select did, subject_type, subject, created, rkey
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from stars
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where did = ? and subject = ?`
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row := e.QueryRow(query, did, subject)
34
-
35
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var star models.Star
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var created string
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err := row.Scan(&star.Did, &star.SubjectType, &star.Subject, &created, &star.Rkey)
38
-
if err != nil {
39
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return nil, err
40
-
}
41
-
42
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createdAtTime, err := time.Parse(time.RFC3339, created)
43
-
if err != nil {
44
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log.Println("unable to determine followed at time")
45
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star.Created = time.Now()
46
-
} else {
47
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star.Created = createdAtTime
48
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}
49
-
50
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return &star, nil
51
26
}
52
27
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func GetStars(e Execer, subject string, page pagination.Page) ([]models.Star, error) {
···
82
57
return stars, rows.Err()
83
58
}
84
59
85
-
// Remove a star
86
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func DeleteStar(e Execer, did string, subject string) error {
87
-
_, err := e.Exec(`delete from stars where did = ? and subject = ?`, did, subject)
88
-
return err
60
+
// Remove all stars from given user to subject
61
+
func DeleteStars(tx *sql.Tx, did syntax.DID, subject string) ([]syntax.ATURI, error) {
62
+
var deleted []syntax.ATURI
63
+
rows, err := tx.Query(
64
+
`delete from stars
65
+
where did = ? and subject = ?
66
+
returning at_uri`,
67
+
did,
68
+
subject,
69
+
)
70
+
if err != nil {
71
+
return nil, fmt.Errorf("deleting stars: %w", err)
72
+
}
73
+
defer rows.Close()
74
+
75
+
for rows.Next() {
76
+
var aturi syntax.ATURI
77
+
if err := rows.Scan(&aturi); err != nil {
78
+
return nil, fmt.Errorf("scanning at_uri: %w", err)
79
+
}
80
+
deleted = append(deleted, aturi)
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+
}
82
+
83
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return deleted, nil
89
84
}
90
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91
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// Remove a star
+34
-15
appview/state/follow.go
+34
-15
appview/state/follow.go
···
5
5
"time"
6
6
7
7
comatproto "github.com/bluesky-social/indigo/api/atproto"
8
+
"github.com/bluesky-social/indigo/atproto/syntax"
8
9
lexutil "github.com/bluesky-social/indigo/lex/util"
9
10
"tangled.org/core/api/tangled"
10
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"tangled.org/core/appview/db"
···
88
89
89
90
return
90
91
case http.MethodDelete:
91
-
// find the record in the db
92
-
follow, err := db.GetFollow(s.db, currentUser.Did, subjectIdent.DID.String())
92
+
tx, err := s.db.BeginTx(r.Context(), nil)
93
93
if err != nil {
94
-
l.Error("failed to get follow relationship", "err", err)
94
+
l.Error("failed to start transaction", "err", err)
95
95
return
96
96
}
97
-
98
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_, err = comatproto.RepoDeleteRecord(r.Context(), client, &comatproto.RepoDeleteRecord_Input{
99
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Collection: tangled.GraphFollowNSID,
100
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Repo: currentUser.Did,
101
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Rkey: follow.Rkey,
102
-
})
97
+
defer tx.Rollback()
103
98
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+
follows, err := db.DeleteFollow(tx, syntax.DID(currentUser.Did), subjectIdent.DID)
104
100
if err != nil {
105
-
l.Error("failed to unfollow", "err", err)
101
+
l.Error("failed to delete follows from db", "err", err)
106
102
return
107
103
}
108
104
109
-
err = db.DeleteFollowByRkey(s.db, currentUser.Did, follow.Rkey)
105
+
var writes []*comatproto.RepoApplyWrites_Input_Writes_Elem
106
+
for _, followAt := range follows {
107
+
writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{
108
+
RepoApplyWrites_Delete: &comatproto.RepoApplyWrites_Delete{
109
+
Collection: tangled.GraphFollowNSID,
110
+
Rkey: followAt.RecordKey().String(),
111
+
},
112
+
})
113
+
}
114
+
_, err = comatproto.RepoApplyWrites(r.Context(), client, &comatproto.RepoApplyWrites_Input{
115
+
Repo: currentUser.Did,
116
+
Writes: writes,
117
+
})
110
118
if err != nil {
111
-
l.Warn("failed to delete follow from DB", "err", err)
112
-
// this is not an issue, the firehose event might have already done this
119
+
l.Error("failed to delete follows from PDS", "err", err)
120
+
return
113
121
}
114
122
123
+
if err := tx.Commit(); err != nil {
124
+
l.Error("failed to commit transaction", "err", err)
125
+
// The record was deleted from the PDS but the local rollback kept it.
126
+
// Ingester will backfill the missed operation
127
+
}
128
+
129
+
s.notifier.DeleteFollow(r.Context(), &models.Follow{
130
+
UserDid: currentUser.Did,
131
+
SubjectDid: subjectIdent.DID.String(),
132
+
// Rkey
133
+
// FollowedAt
134
+
})
135
+
115
136
followStats, err := db.GetFollowerFollowingCount(s.db, subjectIdent.DID.String())
116
137
if err != nil {
117
138
l.Error("failed to get follow stats", "err", err)
···
122
143
FollowStatus: models.IsNotFollowing,
123
144
FollowersCount: followStats.Followers,
124
145
})
125
-
126
-
s.notifier.DeleteFollow(r.Context(), follow)
127
146
128
147
return
129
148
}
+24
-12
appview/state/reaction.go
+24
-12
appview/state/reaction.go
···
91
91
92
92
return
93
93
case http.MethodDelete:
94
-
reaction, err := db.GetReaction(s.db, currentUser.Did, subjectUri, reactionKind)
94
+
tx, err := s.db.BeginTx(r.Context(), nil)
95
+
if err != nil {
96
+
l.Error("failed to start transaction", "err", err)
97
+
}
98
+
defer tx.Rollback()
99
+
100
+
reactions, err := db.DeleteReaction(tx, syntax.DID(currentUser.Did), subjectUri, reactionKind)
95
101
if err != nil {
96
-
l.Error("failed to get reaction relationship", "did", currentUser.Did, "subjectUri", subjectUri, "err", err)
102
+
l.Error("failed to delete reactions from db", "err", err)
97
103
return
98
104
}
99
105
100
-
_, err = comatproto.RepoDeleteRecord(r.Context(), client, &comatproto.RepoDeleteRecord_Input{
101
-
Collection: tangled.FeedReactionNSID,
102
-
Repo: currentUser.Did,
103
-
Rkey: reaction.Rkey,
106
+
var writes []*comatproto.RepoApplyWrites_Input_Writes_Elem
107
+
for _, reactionAt := range reactions {
108
+
writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{
109
+
RepoApplyWrites_Delete: &comatproto.RepoApplyWrites_Delete{
110
+
Collection: tangled.FeedReactionNSID,
111
+
Rkey: reactionAt.RecordKey().String(),
112
+
},
113
+
})
114
+
}
115
+
_, err = comatproto.RepoApplyWrites(r.Context(), client, &comatproto.RepoApplyWrites_Input{
116
+
Repo: currentUser.Did,
117
+
Writes: writes,
104
118
})
105
-
106
119
if err != nil {
107
-
l.Error("failed to remove reaction", "err", err)
120
+
l.Error("failed to delete reactions from PDS", "err", err)
108
121
return
109
122
}
110
123
111
-
err = db.DeleteReactionByRkey(s.db, currentUser.Did, reaction.Rkey)
112
-
if err != nil {
113
-
l.Warn("failed to delete reaction from DB", "err", err)
114
-
// this is not an issue, the firehose event might have already done this
124
+
if err := tx.Commit(); err != nil {
125
+
l.Error("failed to commit transaction", "err", err)
126
+
// DB op failed but record is created in PDS. Ingester will backfill the missed operation
115
127
}
116
128
117
129
reactionMap, err := db.GetReactionMap(s.db, 20, subjectUri)
+32
-15
appview/state/star.go
+32
-15
appview/state/star.go
···
126
126
127
127
return
128
128
case http.MethodDelete:
129
-
// find the record in the db
130
-
star, err := db.GetStar(s.db, currentUser.Did, subjectKey)
129
+
tx, err := s.db.BeginTx(r.Context(), nil)
131
130
if err != nil {
132
-
l.Error("failed to get star relationship", "err", err)
131
+
l.Error("failed to start transaction", "err", err)
132
+
}
133
+
defer tx.Rollback()
134
+
135
+
stars, err := db.DeleteStars(tx, syntax.DID(currentUser.Did), subjectKey)
136
+
if err != nil {
137
+
l.Error("failed to delete stars from db", "err", err)
133
138
return
134
139
}
135
140
136
-
_, err = comatproto.RepoDeleteRecord(r.Context(), client, &comatproto.RepoDeleteRecord_Input{
137
-
Collection: tangled.FeedStarNSID,
138
-
Repo: currentUser.Did,
139
-
Rkey: star.Rkey,
141
+
var writes []*comatproto.RepoApplyWrites_Input_Writes_Elem
142
+
for _, starAt := range stars {
143
+
writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{
144
+
RepoApplyWrites_Delete: &comatproto.RepoApplyWrites_Delete{
145
+
Collection: tangled.FeedStarNSID,
146
+
Rkey: starAt.RecordKey().String(),
147
+
},
148
+
})
149
+
}
150
+
_, err = comatproto.RepoApplyWrites(r.Context(), client, &comatproto.RepoApplyWrites_Input{
151
+
Repo: currentUser.Did,
152
+
Writes: writes,
140
153
})
141
-
142
154
if err != nil {
143
-
l.Error("failed to unstar", "err", err)
155
+
l.Error("failed to delete stars from PDS", "err", err)
144
156
return
145
157
}
146
158
147
-
err = db.DeleteStarByRkey(s.db, currentUser.Did, star.Rkey)
148
-
if err != nil {
149
-
l.Warn("failed to delete star from DB", "err", err)
150
-
// this is not an issue, the firehose event might have already done this
159
+
if err := tx.Commit(); err != nil {
160
+
l.Error("failed to commit transaction", "err", err)
161
+
// DB op failed but record is created in PDS. Ingester will backfill the missed operation
151
162
}
152
163
164
+
s.notifier.DeleteStar(r.Context(), &models.Star{
165
+
Did: currentUser.Did,
166
+
SubjectType: subjectType,
167
+
Subject: subjectKey,
168
+
// Rkey
169
+
// Created
170
+
})
171
+
153
172
starCount, err := db.GetStarCount(s.db, subjectType, subjectKey)
154
173
if err != nil {
155
174
l.Error("failed to get star count", "subject", subjectKey, "err", err)
156
175
return
157
176
}
158
-
159
-
s.notifier.DeleteStar(r.Context(), star)
160
177
161
178
s.pages.StarBtnFragment(w, pages.StarBtnFragmentParams{
162
179
IsStarred: false,