menu-templates.md (5537B)
1 --- 2 title: Menu Templates 3 linktitle: Menu Templates 4 description: Menus are a powerful but simple feature for content management but can be easily manipulated in your templates to meet your design needs. 5 date: 2017-02-01 6 publishdate: 2017-02-01 7 lastmod: 2017-02-01 8 categories: [templates] 9 keywords: [lists,sections,menus] 10 menu: 11 docs: 12 title: "how to use menus in templates" 13 parent: "templates" 14 weight: 130 15 weight: 130 16 sections_weight: 130 17 draft: false 18 aliases: [/templates/menus/] 19 toc: false 20 --- 21 22 Hugo makes no assumptions about how your rendered HTML will be 23 structured. Instead, it provides all of the functions you will need to be 24 able to build your menu however you want. 25 26 The following is an example: 27 28 {{< code file="layouts/partials/sidebar.html" download="sidebar.html" >}} 29 <!-- sidebar start --> 30 <aside> 31 <ul> 32 {{ $currentPage := . }} 33 {{ range .Site.Menus.main }} 34 {{ if .HasChildren }} 35 <li class="{{ if $currentPage.HasMenuCurrent "main" . }}active{{ end }}"> 36 <a href="#"> 37 {{ .Pre }} 38 <span>{{ .Name }}</span> 39 </a> 40 </li> 41 <ul class="sub-menu"> 42 {{ range .Children }} 43 <li class="{{ if $currentPage.IsMenuCurrent "main" . }}active{{ end }}"> 44 <a href="{{ .URL }}">{{ .Name }}</a> 45 </li> 46 {{ end }} 47 </ul> 48 {{ else }} 49 <li> 50 <a href="{{ .URL }}"> 51 {{ .Pre }} 52 <span>{{ .Name }}</span> 53 </a> 54 </li> 55 {{ end }} 56 {{ end }} 57 <li> 58 <a href="#" target="_blank">Hardcoded Link 1</a> 59 </li> 60 <li> 61 <a href="#" target="_blank">Hardcoded Link 2</a> 62 </li> 63 </ul> 64 </aside> 65 {{< /code >}} 66 67 {{% note "`absLangURL` and `relLangURL`" %}} 68 Use the [`absLangURL`](/functions/abslangurl) or [`relLangURL`](/functions/rellangurl) functions if your theme makes use of the [multilingual feature](/content-management/multilingual/). In contrast to `absURL` and `relURL`, these two functions add the correct language prefix to the url. 69 {{% /note %}} 70 71 ## Section Menu for Lazy Bloggers 72 73 To enable this menu, configure `sectionPagesMenu` in your site `config`: 74 75 ``` 76 sectionPagesMenu = "main" 77 ``` 78 79 The menu name can be anything, but take a note of what it is. 80 81 This will create a menu with all the sections as menu items and all the sections' pages as "shadow-members". The _shadow_ implies that the pages isn't represented by a menu-item themselves, but this enables you to create a top-level menu like this: 82 83 ``` 84 <nav class="sidebar-nav"> 85 {{ $currentPage := . }} 86 {{ range .Site.Menus.main }} 87 <a class="sidebar-nav-item{{if or ($currentPage.IsMenuCurrent "main" .) ($currentPage.HasMenuCurrent "main" .) }} active{{end}}" href="{{ .URL }}" title="{{ .Title }}">{{ .Name }}</a> 88 {{ end }} 89 </nav> 90 ``` 91 92 In the above, the menu item is marked as active if on the current section's list page or on a page in that section. 93 94 95 ## Site Config menus 96 97 The above is all that's needed. But if you want custom menu items, e.g. changing weight, name, or link title attribute, you can define them manually in the site config file: 98 99 {{< code-toggle file="config" >}} 100 [[menu.main]] 101 name = "This is the blog section" 102 title = "blog section" 103 weight = -110 104 identifier = "blog" 105 url = "/blog/" 106 {{</ code-toggle >}} 107 108 {{% note %}} 109 The `identifier` *must* match the section name. 110 {{% /note %}} 111 112 ## Menu Entries from the Page's front matter 113 114 It's also possible to create menu entries from the page (i.e. the `.md`-file). 115 116 Here is a `yaml` example: 117 118 ``` 119 --- 120 title: Menu Templates 121 linktitle: Menu Templates 122 menu: 123 docs: 124 title: "how to use menus in templates" 125 parent: "templates" 126 weight: 130 127 --- 128 ... 129 ``` 130 131 {{% note %}} 132 You can define more than one menu. It also doesn't have to be a complex value, 133 `menu` can also be a string, an array of strings, or an array of complex values 134 like in the example above. 135 {{% /note %}} 136 137 ### Using .Page in Menus 138 139 If you use the front matter method of defining menu entries, you'll get access to the `.Page` variable. 140 This allows to use every variable that's reachable from the [page variable](/variables/page/). 141 142 This variable is only set when the menu entry is defined in the page's front matter. 143 Menu entries from the site config don't know anything about `.Page`. 144 145 That's why you have to use the go template's `with` keyword or something similar in your templating language. 146 147 Here's an example: 148 149 ``` 150 <nav class="sidebar-nav"> 151 {{ range .Site.Menus.main }} 152 <a href="{{ .URL }}" title="{{ .Title }}"> 153 {{- .Name -}} 154 {{- with .Page -}} 155 <span class="date"> 156 {{- dateFormat " (2006-01-02)" .Date -}} 157 </span> 158 {{- end -}} 159 </a> 160 {{ end }} 161 </nav> 162 ``` 163 164 ## Using .Params in Menus 165 166 User-defined content on menu items are accessible via `.Params`. 167 168 Here's an example: 169 170 ``` 171 <nav class="sidebar-nav"> 172 {{ range .Site.Menus.main }} 173 <a href="{{ .URL }}" title="{{ .Title }}" class="{{ with .Params.class }}{{ . }}{{ end }}"> 174 {{- .Name -}} 175 </a> 176 {{ end }} 177 </nav> 178 ``` 179 180 {{% note %}} 181 With Menu-level .Params they can easily exist on one menu item but not another. It's recommended to access them gracefully using the [with function](/functions/with). 182 {{% /note %}}