hugo/content/en/templates/base.md
Bjørn Erik Pedersen b6b37a1f00 Squashed 'docs/' changes from f59b3ab06..cfe89ecbc
cfe89ecbc Set all *.png files under static/images to mode 0644
d847ccd8b More spelling error fixes
bf1405d92 Correction: .Pages on homepage is same as .Site.RegularPages
7efa41ff5 Merge commit 'd137efe0222269e09b427325176f0044558e3cc5'
d137efe02 Squashed 'themes/gohugoioTheme/' changes from f31a3dc8..66249819
50df8bfb8 Replace .Data.Pages with .Pages
85d3712d0 Mention the newScratch template func
1c234db1b Release 0.44
a51cb3e36 Merge branch 'temp44'
ec424a5e2 releaser: Prepare repository for 0.45-DEV
425e85574 releaser: Add release notes to /docs for release of 0.44
e6f9c65a2 releaser: Bump versions for release of 0.44
45548a5c9 Arch Linux: Partial upgrades are unsupported
c0430f8f9 Update MenuEntry properties documentation
79109b685 Refresh the documentation on staticDir config parameter
80ed4592b Remove duplicate links; also sort them alphabetically
f00a4e232 HTTPS links to third-party sites
2f6f682ba Fixed a typo
4be105202 add openbsd howto install
39808f50a Fix typo
b55c0f3a0 Fix URL to hugotest
2fb157237 Release Hugo 0.43
e8af6a970 Merge branch 'temp43'
563dd4173 Adjust release notes
50aed2e52 releaser: Prepare repository for 0.44-DEV
363b363ff releaser: Add release notes to /docs for release of 0.43
93bfbef62 releaser: Bump versions for release of 0.43
893a27d33 Fix typos
fe5908257 Celebrate: a few typo and grammar fixes
bb20442df Merge commit '98293eaa1570b5aff4452021c8b6d6c8560b3f06'
ef3d63936 Add a newScratch template func
bf100a3cd Merge branch 'release-0.42.2'
f1133c544 releaser: Prepare repository for 0.43-DEV
2ce058057 releaser: Add release notes to /docs for release of 0.42.2
6073927c6 releaser: Bump versions for release of 0.42.2
3bafddd52 releaser: Prepare repository for 0.43-DEV
8b9f805bd releaser: Add release notes to /docs for release of 0.42.1
efb6638ba releaser: Bump versions for release of 0.42.1
1e74ffbe0 releaser: Prepare repository for 0.43-DEV
2d2d0f8ab releaser: Add release notes to /docs for release of 0.42
17f685813 releaser: Bump versions for release of 0.42
67ef1a0e1 docs: Update theme documentation
d74874e1e docs: Remove some files now moved
771d50cf3 Merge commit 'b239595af5a9fc1fc9a1ccc666c3ab06ccc32f04'
f9b5fd2d2 tplimpl: Remove speakerdeck shortcode
523206579 tpl/strings: strings.RuneCount
b389efc88 tpl: Add strings.Repeat
a41ad0254 Add a BlackFriday option for rel="noreferrer" on external links
a6e279362 Add a BlackFriday option for rel="nofollow" on external links
7e2c9846e releaser: Prepare repository for 0.42-DEV
b4f81c38a releaser: Add release notes to /docs for release of 0.41
55667b3a1 releaser: Bump versions for release of 0.41
afceb02d3 docs: Document the GDPR Privacy Config
8b8289027 Merge commit 'd2b1030060d3c91d5f9ffa3456418da16bd74f1d'
be04a8886 Merge branch 'release-0.40.3'
33ca0b8da releaser: Prepare repository for 0.41-DEV
8c9a5a850 releaser: Add release notes to /docs for release of 0.40.3
85845a4fd releaser: Bump versions for release of 0.40.3
9af79e531 Merge commit '83bef6955e014d40c0f00db9cebe09113154e999'
c4200dd0e Fix typo
8f8323336 releaser: Prepare repository for 0.41-DEV
9fab87505 releaser: Add release notes to /docs for release of 0.40.2
83648c666 releaser: Bump versions for release of 0.40.2
e6434d104 releaser: Prepare repository for 0.41-DEV
9389b2973 releaser: Add release notes to /docs for release of 0.40.1
32979e28a releaser: Bump versions for release of 0.40.1
196174a76 releaser: Prepare repository for 0.41-DEV
490a997bb releaser: Add release notes to /docs for release of 0.40
018aa6471 releaser: Bump versions for release of 0.40
92221934c Merge commit 'a215abf70e018f4bf40d6c09d8bd148d8684b33d'
0a58ef56e Merge commit 'd2ec1a06df8ab6b17ad05cb008d5701b40327d47'
312ab58c6 Improve .Get docs
e43e8cee3 .Get function: fix syntax signature
bb16150bc releaser: Prepare repository for 0.40-DEV
8cc80fed9 releaser: Add release notes to /docs for release of 0.39
f7aa0d1c5 releaser: Bump versions for release of 0.39
42e48706a Merge commit '047c4188dfc854f658d16f1e4a9501f9c97a31c7'
76acab68b releaser: Prepare repository for 0.39-DEV
d270600b0 releaser: Add release notes to /docs for release of 0.38.2
97be36992 releaser: Bump versions for release of 0.38.2
cd29b8b79 releaser: Prepare repository for 0.39-DEV
9983a4bdf releaser: Add release notes to /docs for release of 0.38.1
7774afd01 releaser: Bump versions for release of 0.38.1
b89157f20 releaser: Prepare repository for 0.39-DEV
af4d0bf62 releaser: Add release notes to /docs for release of 0.38
ca98e7d4f releaser: Bump versions for release of 0.38
8b773833a Merge commit 'ed8bf081fdbf336e026517b7e1b123c039014ab5'
24202bb71 docs: Generate docshelper data
43d15975d Add .Site.IsServer
6f99d3d65 Merge commit '0a23baa6a90901f772c234107c4f12c16c76f4aa'
17487ccdd hugolib: Add Reset method to delete key from Scratch
ccbf7a05c docs: Add docs for lang.Merge
5ad46d78e Merge commit '3886fc1fef6ac19d58b9ba1bb642d0c6c9a54031'
ac403c280 docs: Add docs on the new front matter configuration
6066c60e6 Merge commit 'c0290655825e7bb36e13fb39f89d85b392cf1adc'
ee605c7ae releaser: Prepare repository for 0.38-DEV
31a4de966 releaser: Add release notes to /docs for release of 0.37.1
9dd3dafe1 releaser: Bump versions for release of 0.37.1
141750aec releaser: Prepare repository for 0.38-DEV
c9bb39bc3 releaser: Add release notes to /docs for release of 0.37
c7009f064 releaser: Bump versions for release of 0.37
9f727d916 Merge commit '900b5f6cfe5a377ef369d26cd700201be4cf6b06'
87fd97853 Merge commit '374d184e6747678364fd61f5faf328ec9205eb6b'
244deafc2 Fix typos in development contribution doc
608c80f72 Merge branch 'release-0.36.1'
0f8ffbd5c releaser: Prepare repository for 0.37-DEV
5028ee849 releaser: Add release notes to /docs for release of 0.36.1
9ccc7cb11 releaser: Bump versions for release of 0.36.1
3db31be07 Merge commit '9cc9bab46288d8d5f9fda7009c5f746258cec1b4'
9468246c5 Add "target" and "rel" parameters to figure shortcode
6d7fa89f9 releaser: Prepare repository for 0.37-DEV
1aec7ad81 releaser: Add release notes to /docs for release of 0.36
b522da389 releaser: Bump versions for release of 0.36
bb78bea13 docs: Add documentation for smart cropping etc.
930f16cae Merge commit 'c305e44f5f081e4436195923a4593e396f07cd49'
0e4c80ab9 releaser: Prepare repository for 0.36-DEV
e0d4c6bcd releaser: Add release notes to /docs for release of 0.35
f4ac67eb3 releaser: Bump versions for release of 0.35
229a50b1f docs: Regenerate CLI docs
72958eb9c Merge commit '337d0c5f516ee085205e8abefdb7f87e6d33ca05'
d998ca4c0 command: Remove undraft command
34a0052ef docs: Re-generate CLI docs
fa04ff331 releaser: Prepare repository for 0.35-DEV
55e595720 releaser: Add release notes to /docs for release of 0.34
bf4d0e8fb releaser: Bump versions for release of 0.34
07673370e releaser: Prepare repository for 0.34-DEV
921ea8920 releaser: Add release notes to /docs for release of 0.33
3307f61bd releaser: Bump versions for release of 0.33
792a4410d Merge commit '3cf4300097610bb8b5bd0686d96d1df5db641895'
6d8a9f657 releaser: Prepare repository for 0.33-DEV
e3afccf6f releaser: Add release notes to /docs for release of 0.32.4
7f29cb196 releaser: Bump versions for release of 0.32.4
baa364436 releaser: Prepare repository for 0.33-DEV
60c775166 releaser: Add release notes to /docs for release of 0.32.3
9cbab1803 releaser: Bump versions for release of 0.32.3
51823efee releaser: Prepare repository for 0.33-DEV
71e03684c releaser: Add release notes to /docs for release of 0.32.2
e18bf56fb releaser: Bump versions for release of 0.32.2
54aa93927 Merge commit 'eb738cd35cca1ffc68c5ed688dbe2a19108e8761'
5e8123994 releaser: Prepare repository for 0.33-DEV
a55b78124 releaser: Add release notes to /docs for release of 0.32.1
7de53ff41 releaser: Bump versions for release of 0.32.1
e6e58785d releaser: Prepare repository for 0.33-DEV
58cf5009d releaser: Add release notes to /docs for release of 0.32
031719821 Merge commit 'f3cd083961f36dc96d05e98aaf67f650102bc757'
b9183604b Add Pandoc support, refactor external helpers
3f9b9474c releaser: Prepare repository for 0.32-DEV
11e4ce514 releaser: Add release notes to /docs for release of 0.31.1
aebb1504b releaser: Bump versions for release of 0.31.1
d70b54d4a releaser: Prepare repository for 0.32-DEV
cdc10468e releaser: Add release notes to /docs for release of 0.31
38bd41cab releaser: Bump versions for release of 0.31
1c581a11d Merge commit '30c0d485eaff6d70df1be0353911ddca485d52bf'
b88e46d02 Merge commit '05e42bc643f1840ed2ad9c2eff82a269d1381683'
a45ab174e Handle Taxonomy permalinks
9f27354f6 Add support for height argument to figure shortcode
acc8e49c1 releaser: Prepare repository for 0.31-DEV
977266b19 releaser: Add release notes to /docs for release of 0.30.2
31b672844 releaser: Bump versions for release of 0.30.2
b8f6b72a8 Merge commit '325009c3fd4ac90021897b7e3e025c14e70ce162'
c6e3dae71 releaser: Prepare repository for 0.31-DEV
2a3c7c7d9 releaser: Add release notes to /docs for release of 0.30.1
4c014117a releaser: Bump versions for release of 0.30.1
1da61da06 releaser: Prepare repository for 0.31-DEV
24864a46b releaser: Add release notes to /docs for release of 0.30
3011aa44a releaser: Bump versions for release of 0.30
bcbf3237b Merge commit 'ecf5e081b5540e69f4af330233f39a07baf53846'
ab68b99ed Merge commit 'dae5a7c61cceeb0de59f2d755f63e453f71dd9b2'
0ae435725 tpl: Add errorf template function
ac3fb3808 Change SummaryLength to be configurable (#3924)
3c0e4fa70 tpl: Add os.fileExists template function
9290f3983 Merge commit '9d68f695e782c6a83c77aff13317c7a22c694c98'
394e8b3f6 tpl: Add float template function
c0c48c2ea releaser: Prepare repository for 0.30-DEV
0806d910b releaser: Add release notes to /docs for release of 0.29
0d1101836 releaser: Bump versions for release of 0.29
5d92b552b releaser: Prepare repository for 0.29-DEV
1ef521182 releaser: Add release notes to /docs for release of 0.28
c5441cff1 releaser: Bump versions for release of 0.28
46c2786f1 Merge commit '61c27b58b353c73772aae572c7d822fdfdf7791b'
6fed4008f Merge commit '30694a133a88d5f76a51d0372646e10cbeca7691'
595752e2f Merge commit '7a89dce53bfbd67a17442a8f9be8fa895fc4f9b1'
af14cae0c Merge commit 'ba45da9d03056447e4873de13d4e0f8d658a769b'
d0bb30963 releaser: Prepare repository for 0.28-DEV
469bf26aa releaser: Add release notes to /docs for release of 0.27.1
06ea00c12 releaser: Bump versions for release of 0.27.1
0668af58e releaser: Prepare repository for 0.28-DEV
4ce00c84d releaser: Add release notes to /docs for release of 0.27
68f318d0b releaser: Bump versions for release of 0.27
509ad6cc0 docs: Merge commit '1b4319be62ba071f79e90ef32dbe92eb893429f7'
c625ae1ce docs: Document Related Content
ecd5c24f5 docs: Merge commit '7d63a23b0c68d9cd7c7c09c2755619237bc03485'
b97b84f9d Update docs versiona and README
2238f7a4a Merge commit 'ec4e6f9df2ab9ffdc62a3f59675369096e0d3f77' as 'docs'

git-subtree-dir: docs
git-subtree-split: cfe89ecbc2288a7270c23dbcc179733c8d978c4c
2018-07-18 11:04:57 +02:00

132 lines
4.9 KiB
Markdown

---
title: Base Templates and Blocks
linktitle:
description: The base and block constructs allow you to define the outer shell of your master templates (i.e., the chrome of the page).
godocref: https://golang.org/pkg/text/template/#example_Template_block
date: 2017-02-01
publishdate: 2017-02-01
lastmod: 2017-02-01
categories: [templates,fundamentals]
keywords: [blocks,base]
menu:
docs:
parent: "templates"
weight: 20
weight: 20
sections_weight: 20
draft: false
aliases: [/templates/blocks/,/templates/base-templates-and-blocks/]
toc: true
---
The `block` keyword allows you to define the outer shell of your pages' one or more master template(s) and then fill in or override portions as necessary.
{{< youtube QVOMCYitLEc >}}
## Base Template Lookup Order
The [lookup order][lookup] for base templates is as follows:
1. `/layouts/section/<TYPE>-baseof.html`
2. `/themes/<THEME>/layouts/section/<TYPE>-baseof.html`
3. `/layouts/<TYPE>/baseof.html`
4. `/themes/<THEME>/layouts/<TYPE>/baseof.html`
5. `/layouts/section/baseof.html`
6. `/themes/<THEME>/layouts/section/baseof.html`
7. `/layouts/_default/<TYPE>-baseof.html`
8. `/themes/<THEME>/layouts/_default/<TYPE>-baseof.html`
9. `/layouts/_default/baseof.html`
10. `/themes/<THEME>/layouts/_default/baseof.html`
Variables are denoted by capitalized text set within `<>`. Note that Hugo's default behavior is for `type` to inherit from `section` unless otherwise specified.
### Example Base Template Lookup Order
As an example, let's assume your site is using a theme called "mytheme" when rendering the section list for a `post` section. Hugo picks `layout/section/post.html` as the template for [rendering the section][]. The `{{define}}` block in this template tells Hugo that the template is an extension of a base template.
Here is the lookup order for the `post` base template:
1. `/layouts/section/post-baseof.html`
2. `/themes/mytheme/layouts/section/post-baseof.html`
3. `/layouts/post/baseof.html`
4. `/themes/mytheme/layouts/post/baseof.html`
5. `/layouts/section/baseof.html`
6. `/themes/mytheme/layouts/section/baseof.html`
7. `/layouts/_default/post-baseof.html`
8. `/themes/mytheme/layouts/_default/post-baseof.html`
9. `/layouts/_default/baseof.html`
10. `/themes/mytheme/layouts/_default/baseof.html`
## Define the Base Template
The following defines a simple base template at `_default/baseof.html`. As a default template, it is the shell from which all your pages will be rendered unless you specify another `*baseof.html` closer to the beginning of the lookup order.
{{< code file="layouts/_default/baseof.html" download="baseof.html" >}}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>{{ block "title" . }}
<!-- Blocks may include default content. -->
{{ .Site.Title }}
{{ end }}</title>
</head>
<body>
<!-- Code that all your templates share, like a header -->
{{ block "main" . }}
<!-- The part of the page that begins to differ between templates -->
{{ end }}
{{ block "footer" . }}
<!-- More shared code, perhaps a footer but that can be overridden if need be in -->
{{ end }}
</body>
</html>
{{< /code >}}
## Override the Base Template
From the above base template, you can define a [default list template][hugolists]. The default list template will inherit all of the code defined above and can then implement its own `"main"` block from:
{{< code file="layouts/_default/list.html" download="list.html" >}}
{{ define "main" }}
<h1>Posts</h1>
{{ range .Pages }}
<article>
<h2>{{ .Title }}</h2>
{{ .Content }}
</article>
{{ end }}
{{ end }}
{{< /code >}}
This replaces the contents of our (basically empty) "main" block with something useful for the list template. In this case, we didn't define a `"title"` block, so the contents from our base template remain unchanged in lists.
{{% warning %}}
Code that you put outside the block definitions *can* break your layout. This even includes HTML comments. For example:
```
<!-- Seemingly harmless HTML comment..that will break your layout at build -->
{{ define "main" }}
...your code here
{{ end }}
```
[See this thread from the Hugo discussion forums.](https://discourse.gohugo.io/t/baseof-html-block-templates-and-list-types-results-in-empty-pages/5612/6)
{{% /warning %}}
The following shows how you can override both the `"main"` and `"title"` block areas from the base template with code unique to your [default single page template][singletemplate]:
{{< code file="layouts/_default/single.html" download="single.html" >}}
{{ define "title" }}
<!-- This will override the default value set in baseof.html; i.e., "{{.Site.Title}}" in the original example-->
{{ .Title }} &ndash; {{ .Site.Title }}
{{ end }}
{{ define "main" }}
<h1>{{ .Title }}</h1>
{{ .Content }}
{{ end }}
{{< /code >}}
[hugolists]: /templates/lists
[lookup]: /templates/lookup-order/
[rendering the section]: /templates/section-templates/
[singletemplate]: /templates/single-page-templates/