Welcome to mirror list, hosted at ThFree Co, Russian Federation.

page-resources.md « content-management « en « content « docs - github.com/gohugoio/hugo.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
blob: 8bf8a37c87d7b8fba58860213be72491f187af22 (plain)
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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
---
title : "Page Resources"
description : "Page resources -- images, other pages, documents, etc. -- have page-relative URLs and their own metadata."
date: 2018-01-24
categories: ["content management"]
keywords: [bundle,content,resources]
weight: 4003
draft: false
toc: true
linktitle: "Page Resources"
menu:
  docs:
    parent: "content-management"
    weight: 31
---
Page resources are only accessible from [page bundles]({{< relref
"/content-management/page-bundles" >}}), those directories with `index.md` or
`_index.md` files at their root. Page resources are only available to the
page with which they are bundled.

In this example, `first-post` is a page bundle with access to 10 page resources including audio, data, documents, images, and video. Although `second-post` is also a page bundle, it has no page resources and is unable to directly access the page resources associated with `first-post`.

```text
content
└── post
    ├── first-post
    │   ├── images
    │   │   ├── a.jpg
    │   │   ├── b.jpg
    │   │   └── c.jpg
    │   ├── index.md (root of page bundle)
    │   ├── latest.html
    │   ├── manual.json
    │   ├── notice.md
    │   ├── office.mp3
    │   ├── pocket.mp4
    │   ├── rating.pdf
    │   └── safety.txt
    └── second-post
        └── index.md (root of page bundle)
```

## Properties

ResourceType
: The main type of the resource's [Media Type](/templates/output-formats/#media-types). For example, a file of MIME type `image/jpeg` has the ResourceType `image`. A `Page` will have `ResourceType` with value `page`.

{{< new-in "0.80.0" >}} Note that we in Hugo `v0.80.0` fixed a bug where non-image resources (e.g. video) would return the MIME sub type, e.g. `json`.

Name
: Default value is the filename (relative to the owning page). Can be set in front matter.

Title
: Default value is the same as `.Name`. Can be set in front matter.

Permalink
: The absolute URL to the resource. Resources of type `page` will have no value.

RelPermalink
: The relative URL to the resource. Resources of type `page` will have no value.

Content
: The content of the resource itself. For most resources, this returns a string with the contents of the file. This can be used to inline some resources, such as `<script>{{ (.Resources.GetMatch "myscript.js").Content | safeJS }}</script>` or `<img src="{{ (.Resources.GetMatch "mylogo.png").Content | base64Encode }}">`.

MediaType
: The MIME type of the resource, such as `image/jpeg`.

MediaType.MainType
: The main type of the resource's MIME type. For example, a file of MIME type `application/pdf` has for MainType `application`.

MediaType.SubType
: The subtype of the resource's MIME type. For example, a file of MIME type `application/pdf` has for SubType `pdf`. Note that this is not the same as the file extension - PowerPoint files have a subtype of `vnd.mspowerpoint`.

MediaType.Suffixes
: A slice of possible suffixes for the resource's MIME type.

## Methods
ByType
: Returns the page resources of the given type.

```go
{{ .Resources.ByType "image" }}
```
Match
: Returns all the page resources (as a slice) whose `Name` matches the given Glob pattern ([examples](https://github.com/gobwas/glob/blob/master/readme.md)). The matching is case-insensitive.

```go
{{ .Resources.Match "images/*" }}
```

GetMatch
: Same as `Match` but will return the first match.

### Pattern Matching
```go
// Using Match/GetMatch to find this images/sunset.jpg ?
.Resources.Match "images/sun*" ✅
.Resources.Match "**/sunset.jpg" ✅
.Resources.Match "images/*.jpg" ✅
.Resources.Match "**.jpg" ✅
.Resources.Match "*" 🚫
.Resources.Match "sunset.jpg" 🚫
.Resources.Match "*sunset.jpg" 🚫

```

## Page Resources Metadata

The page resources' metadata is managed from the corresponding page's front matter with an array/table parameter named `resources`. You can batch assign values using [wildcards](https://tldp.org/LDP/GNU-Linux-Tools-Summary/html/x11655.htm).

{{% note %}}
Resources of type `page` get `Title` etc. from their own front matter.
{{% /note %}}

name
: Sets the value returned in `Name`.

{{% warning %}}
The methods `Match` and `GetMatch` use `Name` to match the resources.
{{%/ warning %}}

title
: Sets the value returned in `Title`

params
: A map of custom key/values.


###  Resources metadata example

{{< code-toggle copy="false">}}
title: Application
date : 2018-01-25
resources :
- src : "images/sunset.jpg"
  name : "header"
- src : "documents/photo_specs.pdf"
  title : "Photo Specifications"
  params:
    icon : "photo"
- src : "documents/guide.pdf"
  title : "Instruction Guide"
- src : "documents/checklist.pdf"
  title : "Document Checklist"
- src : "documents/payment.docx"
  title : "Proof of Payment"
- src : "**.pdf"
  name : "pdf-file-:counter"
  params :
    icon : "pdf"
- src : "**.docx"
  params :
    icon : "word"
{{</ code-toggle >}}

From the example above:

- `sunset.jpg` will receive a new `Name` and can now be found with `.GetMatch "header"`.
- `documents/photo_specs.pdf` will get the `photo` icon.
- `documents/checklist.pdf`, `documents/guide.pdf` and `documents/payment.docx` will get `Title` as set by `title`.
- Every `PDF` in the bundle except `documents/photo_specs.pdf` will get the `pdf` icon.
- All `PDF` files will get a new `Name`. The `name` parameter contains a special placeholder [`:counter`](#the-counter-placeholder-in-name-and-title), so the `Name` will be `pdf-file-1`, `pdf-file-2`, `pdf-file-3`.
- Every docx in the bundle will receive the `word` icon.

{{% warning %}}
The __order matters__ --- Only the **first set** values of the `title`, `name` and `params`-**keys** will be used. Consecutive parameters will be set only for the ones not already set. In the above example, `.Params.icon` is first set to `"photo"` in `src = "documents/photo_specs.pdf"`. So that would not get overridden to `"pdf"` by the later set `src = "**.pdf"` rule.
{{%/ warning %}}

### The `:counter` placeholder in `name` and `title`

The `:counter` is a special placeholder recognized in `name` and `title` parameters `resources`.

The counter starts at 1 the first time they are used in either `name` or `title`.

For example, if a bundle has the resources `photo_specs.pdf`, `other_specs.pdf`, `guide.pdf` and `checklist.pdf`, and the front matter has specified the `resources` as:

{{< code-toggle copy="false">}}
[[resources]]
  src = "*specs.pdf"
  title = "Specification #:counter"
[[resources]]
  src = "**.pdf"
  name = "pdf-file-:counter"
{{</ code-toggle >}}

the `Name` and `Title` will be assigned to the resource files as follows:

| Resource file     | `Name`            | `Title`               |
|-------------------|-------------------|-----------------------|
| checklist.pdf     | `"pdf-file-1.pdf` | `"checklist.pdf"`     |
| guide.pdf         | `"pdf-file-2.pdf` | `"guide.pdf"`         |
| other\_specs.pdf  | `"pdf-file-3.pdf` | `"Specification #1"` |
| photo\_specs.pdf  | `"pdf-file-4.pdf` | `"Specification #2"` |