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Do not return error on .Get "class" and vice versa in shortcodes

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The current error handling makes parameter checking in shortcodes too verbose for no good reason.

Fixes #4745
This commit is contained in:
Bjørn Erik Pedersen 2018-05-21 17:47:52 +02:00
parent 0a7027e2a8
commit 2f17f9378a
2 changed files with 11 additions and 11 deletions
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13
hugolib/shortcode.go
View file

@ -85,7 +85,10 @@ func (scp *ShortcodeWithPage) Get(key interface{}) interface{} {
switch key.(type) {
case int64, int32, int16, int8, int:
if reflect.TypeOf(scp.Params).Kind() == reflect.Map {
return "error: cannot access named params by position"
// We treat this as a non error, so people can do similar to
// {{ $myParam := .Get "myParam" | default .Get 0 }}
// Without having to do additional checks.
return nil
} else if reflect.TypeOf(scp.Params).Kind() == reflect.Slice {
idx := int(reflect.ValueOf(key).Int())
ln := reflect.ValueOf(scp.Params).Len()
@ -101,10 +104,10 @@ func (scp *ShortcodeWithPage) Get(key interface{}) interface{} {
return ""
}
} else if reflect.TypeOf(scp.Params).Kind() == reflect.Slice {
if reflect.ValueOf(scp.Params).Len() == 1 && reflect.ValueOf(scp.Params).Index(0).String() == "" {
return nil
}
return "error: cannot access positional params by string name"
// We treat this as a non error, so people can do similar to
// {{ $myParam := .Get "myParam" | default .Get 0 }}
// Without having to do additional checks.
return nil
}
}

9
hugolib/shortcode_test.go
View file

@ -185,17 +185,14 @@ func TestNestedNamedMissingParam(t *testing.T) {
func TestIsNamedParamsSC(t *testing.T) {
t.Parallel()
wt := func(tem tpl.TemplateHandler) error {
tem.AddTemplate("_internal/shortcodes/byposition.html", `<div id="{{ .Get 0 }}">`)
tem.AddTemplate("_internal/shortcodes/byname.html", `<div id="{{ .Get "id" }}">`)
tem.AddTemplate("_internal/shortcodes/bynameorposition.html", `{{ with .Get "id" }}Named: {{ . }}{{ else }}Pos: {{ .Get 0 }}{{ end }}`)
tem.AddTemplate("_internal/shortcodes/ifnamedparams.html", `<div id="{{ if .IsNamedParams }}{{ .Get "id" }}{{ else }}{{ .Get 0 }}{{end}}">`)
return nil
}
CheckShortCodeMatch(t, `{{< ifnamedparams id="name" >}}`, `<div id="name">`, wt)
CheckShortCodeMatch(t, `{{< ifnamedparams position >}}`, `<div id="position">`, wt)
CheckShortCodeMatch(t, `{{< byname id="name" >}}`, `<div id="name">`, wt)
CheckShortCodeMatch(t, `{{< byname position >}}`, `<div id="error: cannot access positional params by string name">`, wt)
CheckShortCodeMatch(t, `{{< byposition position >}}`, `<div id="position">`, wt)
CheckShortCodeMatch(t, `{{< byposition id="name" >}}`, `<div id="error: cannot access named params by position">`, wt)
CheckShortCodeMatch(t, `{{< bynameorposition id="name" >}}`, `Named: name`, wt)
CheckShortCodeMatch(t, `{{< bynameorposition position >}}`, `Pos: position`, wt)
}
func TestInnerSC(t *testing.T) {