hugo/resources/page/pages_related_test.go
Bjørn Erik Pedersen 90da7664bf Add page fragments support to Related
The main topic of this commit is that you can now index fragments (content heading identifiers) when calling `.Related`.

You can do this by:

* Configure one or more indices with type `fragments`
* The name of those index configurations maps to an (optional) front matter slice with fragment references. This allows you to link
page<->fragment and page<->page.
* This also will index all the fragments (heading identifiers) of the pages.

It's also possible to use type `fragments` indices in shortcode, e.g.:

```
{{ $related := site.RegularPages.Related .Page }}
```

But, and this is important, you need to include the shortcode using the `{{<` delimiter. Not doing so will create infinite loops and timeouts.

This commit also:

* Adds two new methods to Page: Fragments (can also be used to build ToC) and HeadingsFiltered (this is only used in Related Content with
index type `fragments` and `enableFilter` set to true.
* Consolidates all `.Related*` methods into one, which takes either a `Page` or an options map as its only argument.
* Add `context.Context` to all of the content related Page API. Turns out it wasn't strictly needed for this particular feature, but it will
soon become usefil, e.g. in #9339.

Closes #10711
Updates #9339
Updates #10725
2023-02-21 17:56:41 +01:00

103 lines
2.6 KiB
Go

// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package page
import (
"context"
"testing"
"time"
"github.com/gohugoio/hugo/common/types"
qt "github.com/frankban/quicktest"
)
func TestRelated(t *testing.T) {
c := qt.New(t)
t.Parallel()
pages := Pages{
&testPage{
title: "Page 1",
pubDate: mustParseDate("2017-01-03"),
params: map[string]any{
"keywords": []string{"hugo", "says"},
},
},
&testPage{
title: "Page 2",
pubDate: mustParseDate("2017-01-02"),
params: map[string]any{
"keywords": []string{"hugo", "rocks"},
},
},
&testPage{
title: "Page 3",
pubDate: mustParseDate("2017-01-01"),
params: map[string]any{
"keywords": []string{"bep", "says"},
},
},
}
ctx := context.Background()
opts := map[string]any{
"namedSlices": types.NewKeyValuesStrings("keywords", "hugo", "rocks"),
}
result, err := pages.Related(ctx, opts)
c.Assert(err, qt.IsNil)
c.Assert(len(result), qt.Equals, 2)
c.Assert(result[0].Title(), qt.Equals, "Page 2")
c.Assert(result[1].Title(), qt.Equals, "Page 1")
result, err = pages.Related(ctx, pages[0])
c.Assert(err, qt.IsNil)
c.Assert(len(result), qt.Equals, 2)
c.Assert(result[0].Title(), qt.Equals, "Page 2")
c.Assert(result[1].Title(), qt.Equals, "Page 3")
opts = map[string]any{
"document": pages[0],
"indices": []string{"keywords"},
}
result, err = pages.Related(ctx, opts)
c.Assert(err, qt.IsNil)
c.Assert(len(result), qt.Equals, 2)
c.Assert(result[0].Title(), qt.Equals, "Page 2")
c.Assert(result[1].Title(), qt.Equals, "Page 3")
opts = map[string]any{
"namedSlices": []types.KeyValues{
{
Key: "keywords",
Values: []any{"bep", "rocks"},
},
},
}
result, err = pages.Related(context.Background(), opts)
c.Assert(err, qt.IsNil)
c.Assert(len(result), qt.Equals, 2)
c.Assert(result[0].Title(), qt.Equals, "Page 2")
c.Assert(result[1].Title(), qt.Equals, "Page 3")
}
func mustParseDate(s string) time.Time {
d, err := time.Parse("2006-01-02", s)
if err != nil {
panic(err)
}
return d
}