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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"fmt"
"regexp"
"strings"
"code.gitea.io/gitea/modules/util"
"github.com/go-xorm/builder"
)
func init() {
tables = append(tables,
new(Topic),
new(RepoTopic),
)
}
var topicPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`)
// Topic represents a topic of repositories
type Topic struct {
ID int64
Name string `xorm:"UNIQUE"`
RepoCount int
CreatedUnix util.TimeStamp `xorm:"INDEX created"`
UpdatedUnix util.TimeStamp `xorm:"INDEX updated"`
}
// RepoTopic represents associated repositories and topics
type RepoTopic struct {
RepoID int64 `xorm:"UNIQUE(s)"`
TopicID int64 `xorm:"UNIQUE(s)"`
}
// ErrTopicNotExist represents an error that a topic is not exist
type ErrTopicNotExist struct {
Name string
}
// IsErrTopicNotExist checks if an error is an ErrTopicNotExist.
func IsErrTopicNotExist(err error) bool {
_, ok := err.(ErrTopicNotExist)
return ok
}
// Error implements error interface
func (err ErrTopicNotExist) Error() string {
return fmt.Sprintf("topic is not exist [name: %s]", err.Name)
}
// ValidateTopic checks topics by length and match pattern rules
func ValidateTopic(topic string) bool {
return len(topic) <= 35 && topicPattern.MatchString(topic)
}
// GetTopicByName retrieves topic by name
func GetTopicByName(name string) (*Topic, error) {
var topic Topic
if has, err := x.Where("name = ?", name).Get(&topic); err != nil {
return nil, err
} else if !has {
return nil, ErrTopicNotExist{name}
}
return &topic, nil
}
// FindTopicOptions represents the options when fdin topics
type FindTopicOptions struct {
RepoID int64
Keyword string
Limit int
Page int
}
func (opts *FindTopicOptions) toConds() builder.Cond {
var cond = builder.NewCond()
if opts.RepoID > 0 {
cond = cond.And(builder.Eq{"repo_topic.repo_id": opts.RepoID})
}
if opts.Keyword != "" {
cond = cond.And(builder.Like{"topic.name", opts.Keyword})
}
return cond
}
// FindTopics retrieves the topics via FindTopicOptions
func FindTopics(opts *FindTopicOptions) (topics []*Topic, err error) {
sess := x.Select("topic.*").Where(opts.toConds())
if opts.RepoID > 0 {
sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
}
if opts.Limit > 0 {
sess.Limit(opts.Limit, opts.Page*opts.Limit)
}
return topics, sess.Desc("topic.repo_count").Find(&topics)
}
// SaveTopics save topics to a repository
func SaveTopics(repoID int64, topicNames ...string) error {
topics, err := FindTopics(&FindTopicOptions{
RepoID: repoID,
})
if err != nil {
return err
}
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
var addedTopicNames []string
for _, topicName := range topicNames {
if strings.TrimSpace(topicName) == "" {
continue
}
var found bool
for _, t := range topics {
if strings.EqualFold(topicName, t.Name) {
found = true
break
}
}
if !found {
addedTopicNames = append(addedTopicNames, topicName)
}
}
var removeTopics []*Topic
for _, t := range topics {
var found bool
for _, topicName := range topicNames {
if strings.EqualFold(topicName, t.Name) {
found = true
break
}
}
if !found {
removeTopics = append(removeTopics, t)
}
}
for _, topicName := range addedTopicNames {
var topic Topic
if has, err := sess.Where("name = ?", topicName).Get(&topic); err != nil {
return err
} else if !has {
topic.Name = topicName
topic.RepoCount = 1
if _, err := sess.Insert(&topic); err != nil {
return err
}
} else {
topic.RepoCount++
if _, err := sess.ID(topic.ID).Cols("repo_count").Update(&topic); err != nil {
return err
}
}
if _, err := sess.Insert(&RepoTopic{
RepoID: repoID,
TopicID: topic.ID,
}); err != nil {
return err
}
}
for _, topic := range removeTopics {
topic.RepoCount--
if _, err := sess.ID(topic.ID).Cols("repo_count").Update(topic); err != nil {
return err
}
if _, err := sess.Delete(&RepoTopic{
RepoID: repoID,
TopicID: topic.ID,
}); err != nil {
return err
}
}
topicNames = make([]string, 0, 25)
if err := sess.Table("topic").Cols("name").
Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id").
Where("repo_topic.repo_id = ?", repoID).Desc("topic.repo_count").Find(&topicNames); err != nil {
return err
}
if _, err := sess.ID(repoID).Cols("topics").Update(&Repository{
Topics: topicNames,
}); err != nil {
return err
}
return sess.Commit()
}
|
