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
|
package db
import (
"bytes"
"encoding/json"
"fmt"
"net/url"
"strings"
"time"
"github.com/ponzu-cms/ponzu/system/item"
"strconv"
"github.com/boltdb/bolt"
"github.com/gorilla/schema"
uuid "github.com/satori/go.uuid"
)
// SetUpload stores information about files uploaded to the system
func SetUpload(target string, data url.Values) (int, error) {
parts := strings.Split(target, ":")
if parts[0] != "__uploads" {
return 0, fmt.Errorf("cannot call SetUpload with target type: %s", parts[0])
}
pid := parts[1]
if data.Get("uuid") == "" {
// set new UUID for upload
data.Set("uuid", uuid.NewV4().String())
}
if data.Get("slug") == "" {
// create slug based on filename and timestamp/updated fields
slug := data.Get("name")
slug, err := checkSlugForDuplicate(slug)
if err != nil {
return 0, err
}
data.Set("slug", slug)
}
ts := fmt.Sprintf("%d", time.Now().Unix()*1000)
if data.Get("timestamp") == "" {
data.Set("timestamp", ts)
}
data.Set("updated", ts)
// store in database
var id int64
err := store.Update(func(tx *bolt.Tx) error {
b, err := tx.CreateBucketIfNotExists([]byte("__uploads"))
if err != nil {
return err
}
if pid == "-1" {
// get sequential ID for item
id, err := b.NextSequence()
if err != nil {
return err
}
data.Set("id", fmt.Sprintf("%d", id))
} else {
id, err = strconv.ParseInt(pid, 10, 64)
if err != nil {
return err
}
}
file := &item.FileUpload{}
dec := schema.NewDecoder()
dec.SetAliasTag("json") // allows simpler struct tagging when creating a content type
dec.IgnoreUnknownKeys(true) // will skip over form values submitted, but not in struct
err = dec.Decode(file, data)
if err != nil {
return err
}
// marshal data to json for storage
j, err := json.Marshal(file)
if err != nil {
return err
}
err = b.Put([]byte(data.Get("id")), j)
if err != nil {
return err
}
// add slug to __contentIndex for lookup
b, err = tx.CreateBucketIfNotExists([]byte("__contentIndex"))
if err != nil {
return err
}
k := []byte(data.Get("slug"))
v := []byte(fmt.Sprintf("%s:%d", "__uploads", id))
err = b.Put(k, v)
if err != nil {
return err
}
return nil
})
if err != nil {
return 0, err
}
return int(id), nil
}
// Upload returns the value for an upload by its target (__uploads:{id})
func Upload(target string) ([]byte, error) {
val := &bytes.Buffer{}
parts := strings.Split(target, ":")
if len(parts) < 2 {
return nil, fmt.Errorf("invalid target for upload: %s", target)
}
id := []byte(parts[1])
err := store.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("__uploads"))
if b == nil {
return bolt.ErrBucketNotFound
}
j := b.Get(id)
_, err := val.Write(j)
return err
})
return val.Bytes(), err
}
// UploadBySlug returns the value for an upload by its slug
func UploadBySlug(slug string) ([]byte, error) {
val := &bytes.Buffer{}
// get target from __contentIndex or return nil if not exists
err := store.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("__contentIndex"))
if b == nil {
return bolt.ErrBucketNotFound
}
target := b.Get([]byte(slug))
if target == nil {
return fmt.Errorf("no value for target in %s", "__contentIndex")
}
j, err := Upload(string(target))
if err != nil {
return err
}
_, err = val.Write(j)
return err
})
return val.Bytes(), err
}
// func replaceUpload(id string, data url.Values) error {
// // Unmarsal the existing values
// s := t()
// err := json.Unmarshal(existingContent, &s)
// if err != nil {
// log.Println("Error decoding json while updating", ns, ":", err)
// return j, err
// }
// // Don't allow the Item fields to be updated from form values
// data.Del("id")
// data.Del("uuid")
// data.Del("slug")
// dec := schema.NewDecoder()
// dec.SetAliasTag("json") // allows simpler struct tagging when creating a content type
// dec.IgnoreUnknownKeys(true) // will skip over form values submitted, but not in struct
// err = dec.Decode(s, data)
// if err != nil {
// return j, err
// }
// j, err = json.Marshal(s)
// if err != nil {
// return j, err
// }
// return j, nil
// return nil
// }
|
