-
Notifications
You must be signed in to change notification settings - Fork 3
/
couchbase.go
146 lines (118 loc) · 3.61 KB
/
couchbase.go
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
package couchbase
import (
"errors"
"log"
gocb "github.com/couchbase/gocb"
goar "github.com/obieq/goar"
"github.com/satori/go.uuid"
)
type ArCouchbase struct {
goar.ActiveRecord
ID string `json:"id,omitempty"`
goar.Timestamps
}
// interface assertions
// https://splice.com/blog/golang-verify-type-implements-interface-compile-time/
var _ goar.Persister = (*ArCouchbase)(nil)
var (
clients = map[string]*gocb.Bucket{}
)
func connect(connName string, env string) *gocb.Bucket {
cfg := goar.Config
if cfg == nil {
log.Panicln("goar couchbase config cannot be nil")
}
connKey := env + "_couchbase_" + connName
m, found := cfg.CouchbaseDBs[connKey]
if !found {
log.Panicln("couchbase db connection not found:", connKey)
} else if m.ClusterAddress == "" {
log.Panicln("couchbase cluster address cannot be blank")
} else if m.BucketName == "" {
log.Panicln("couchbase bucket name cannot be blank")
} else if m.BucketPassword == "" {
log.Println("---- WARNING --- bucket password is blank")
}
cluster, _ := gocb.Connect("couchbase://" + m.ClusterAddress + "/")
bucket, err := cluster.OpenBucket(m.BucketName, m.BucketPassword)
if err != nil {
log.Fatalf("Error getting bucket: %v", err)
}
// bucket.SetTranscoder(TestTranscoder{})
return bucket
}
func (ar *ArCouchbase) Client() *gocb.Bucket {
self := ar.Self()
connectionKey := self.DBConnectionName() + "_" + self.DBConnectionEnvironment()
if self == nil {
log.Panic("couchbase ar.Self() cannot be blank!")
}
conn, found := clients[connectionKey]
if !found {
conn = connect(self.DBConnectionName(), self.DBConnectionEnvironment())
clients[connectionKey] = conn
}
return conn
}
func (ar *ArCouchbase) SetKey(key string) {
ar.ID = key
}
func (ar *ArCouchbase) All(models interface{}, opts map[string]interface{}) (err error) {
return errors.New("All method not supported by Couchbase. Create a View instead.")
}
func (ar *ArCouchbase) Truncate() (numRowsDeleted int, err error) {
// http://docs.couchbase.com/admin/admin/REST/rest-bucket-flush.html
err = ar.Client().Manager("user-name", "password").Flush()
log.Fatal("couchbase.Truncate() failed with error: ", err)
return -1, err
}
func (ar *ArCouchbase) Find(id interface{}, out interface{}) error {
_, err := ar.Client().Get(id.(string), &out)
return err
}
func (ar *ArCouchbase) DbSave() error {
var err error
var cas gocb.Cas
if ar.UpdatedAt == nil {
if ar.ID == "" { // auto-generate the document id if the client didn't provide one
ar.ID = uuid.NewV4().String()
}
cas, err = ar.Client().Insert(ar.ID, ar.Self(), 0)
if err == nil && cas == 0 {
err = errors.New("Insert Failed: key already exists")
}
} else {
// err = client.Set(ar.ID, 0, ar.Self())
cas, err = ar.Client().Replace(ar.ID, ar.Self(), 0, 0)
}
return err
}
func (ar *ArCouchbase) DbDelete() (err error) {
_, err = ar.Client().Remove(ar.ID, 0)
return err
}
func (ar *ArCouchbase) DbSearch(models interface{}) (err error) {
return errors.New("Search method not supported by Couchbase. Create a View instead.")
}
func (ar *ArCouchbase) N1qlQuery(query string, models *[]interface{}) (err error) {
var rows gocb.ViewResults
n1qlQuery := gocb.NewN1qlQuery(query)
if rows, err = ar.Client().ExecuteN1qlQuery(n1qlQuery, nil); err != nil {
return err
}
var row interface{}
for rows.Next(&row) {
*models = append(*models, row)
}
if err := rows.Close(); err != nil {
log.Println("N1QL query error: %s\n", err)
return err
}
return err
}
//func processPlucks(query r.Term, ar *ArRethinkDb) r.Term {
//if plucks := ar.Query().Plucks; plucks != nil {
//query = query.Pluck(plucks...)
//}
//return query
//}