1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
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 bundb
import (
"context"
"github.com/ReneKroon/ttlcache"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/uptrace/bun"
)
type mentionDB struct {
config *config.Config
conn *DBConn
cache *ttlcache.Cache
}
func (m *mentionDB) newMentionQ(i interface{}) *bun.SelectQuery {
return m.conn.
NewSelect().
Model(i).
Relation("Status").
Relation("OriginAccount").
Relation("TargetAccount")
}
func (m *mentionDB) getMentionCached(id string) (*gtsmodel.Mention, bool) {
v, ok := m.cache.Get(id)
if !ok {
return nil, false
}
return v.(*gtsmodel.Mention), true
}
func (m *mentionDB) putMentionCache(mention *gtsmodel.Mention) {
m.cache.Set(mention.ID, mention)
}
func (m *mentionDB) getMentionDB(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
mention := >smodel.Mention{}
q := m.newMentionQ(mention).
Where("mention.id = ?", id)
if err := q.Scan(ctx); err != nil {
return nil, m.conn.ProcessError(err)
}
m.putMentionCache(mention)
return mention, nil
}
func (m *mentionDB) GetMention(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
if mention, cached := m.getMentionCached(id); cached {
return mention, nil
}
return m.getMentionDB(ctx, id)
}
func (m *mentionDB) GetMentions(ctx context.Context, ids []string) ([]*gtsmodel.Mention, db.Error) {
mentions := make([]*gtsmodel.Mention, 0, len(ids))
for _, id := range ids {
// Attempt fetch from cache
mention, cached := m.getMentionCached(id)
if cached {
mentions = append(mentions, mention)
}
// Attempt fetch from DB
mention, err := m.getMentionDB(ctx, id)
if err != nil {
return nil, err
}
// Append mention
mentions = append(mentions, mention)
}
return mentions, nil
}
|
