Newer
Older
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
package database
import (
"database/sql/driver"
"fmt"
"sort"
"strings"
"github.com/jackc/pgtype"
)
type ArrayContains map[string]interface{}
func (ac ArrayContains) ToSQL() (sql string, args []interface{}, err error) {
if len(ac) == 0 {
// Empty Sql{} evaluates to true.
sql = "(1=1)"
return
}
sortedKeys := getSortedKeys(ac)
var exprs []string
for _, key := range sortedKeys {
var expr string
val := ac[key]
switch v := val.(type) {
case driver.Valuer:
if val, err = v.Value(); err != nil {
return
}
case []string:
var data pgtype.TextArray
if err = data.Set(v); err != nil {
return
}
if val, err = data.Value(); err != nil {
return
}
case string:
var data pgtype.TextArray
if err = data.Set([]string{v}); err != nil {
return
}
if val, err = data.Value(); err != nil {
return
}
}
if val == nil {
panic("cannot handle NULL values")
} else {
expr = fmt.Sprintf("%s @> ?", key)
args = append(args, val)
}
exprs = append(exprs, expr)
}
sql = strings.Join(exprs, " AND ")
return
}
func getSortedKeys(exp map[string]interface{}) []string {
sortedKeys := make([]string, 0, len(exp))
for k := range exp {
sortedKeys = append(sortedKeys, k)
}
sort.Strings(sortedKeys)
return sortedKeys
}