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tpl: Extend Jsonify to support optional indent parameter

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Fixes #5040
This commit is contained in:
Cameron Moore 2020-03-21 10:15:12 -05:00 • committed by Bjørn Erik Pedersen
parent 7eba37ae9b
commit 1bc93021e3
3 changed files with 38 additions and 9 deletions
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30
tpl/encoding/encoding.go
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@ -17,6 +17,7 @@ package encoding
import (
"encoding/base64"
"encoding/json"
"errors"
"html/template"
"github.com/spf13/cast"
@ -51,9 +52,32 @@ func (ns *Namespace) Base64Encode(content interface{}) (string, error) {
return base64.StdEncoding.EncodeToString([]byte(conv)), nil
}
// Jsonify encodes a given object to JSON.
func (ns *Namespace) Jsonify(v interface{}) (template.HTML, error) {
b, err := json.Marshal(v)
// Jsonify encodes a given object to JSON. To pretty print the JSON, pass an
// optional first argument of the indent string, such as " ".
func (ns *Namespace) Jsonify(args ...interface{}) (template.HTML, error) {
var (
b []byte
err error
)
switch len(args) {
case 0:
return "", nil
case 1:
b, err = json.Marshal(args[0])
case 2:
var indent string
indent, err = cast.ToStringE(args[0])
if err != nil {
break
}
b, err = json.MarshalIndent(args[1], "", indent)
default:
err = errors.New("too many arguments to jsonify")
}
if err != nil {
return "", err
}