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Rails: How to change the title of a page?

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没有蜡笔的小新
没有蜡笔的小新 2020-11-30 17:08

What is the best way to create a custom title for pages in a Rails app without using a plug-in?

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  • 野的像风
    2020-11-30 17:21

    The best/clean way to do this :

    <title><%= @page_title or 'Page Title' %></title>
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  • [愿得一人]
    2020-11-30 17:23

    Look into content_for: http://railscasts.com/episodes/8

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  • 自闭症患者
    2020-11-30 17:25

    Here's a simple option that I like to use

    In your layout

    <head>
  <title><%= @title %></title>
</head>

    And at the top of your page template (first line)

    <% @title="Home" %>

    Because of the way the layout and page templates are parsed the @title="Home" is evaluated before the layout is rendered.

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  • 野趣味
    2020-11-30 17:26

    I use nifty_generator's "nifty_layout" which provides with a title variable which I can call then on the page using:

    <% title "Title of page" %>

    I can also user <% title "Title of page", false %> to have the title just show in browser title and not in the page itself.

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  • 情话喂你
    2020-11-30 17:28

    In your views do something like this:

    <% content_for :title, "Title for specific page" %>
<!-- or -->
<h1><%= content_for(:title, "Title for specific page") %></h1>

    The following goes in the layout file:

    <head>
  <title><%= yield(:title) %></title>
  <!-- Additional header tags here -->
</head>
<body>
  <!-- If all pages contain a headline tag, it's preferable to put that in the layout file too -->
  <h1><%= yield(:title) %></h1>
</body>

    It's also possible to encapsulate the content_for and yield(:title) statements in helper methods (as others have already suggested). However, in simple cases such as this one I like to put the necessary code directly into the specific views without custom helpers.

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  • 既然无缘
    2020-11-30 17:30

    Best practice is to use content_for.

    First, add a couple of helper methods (ie. stick in app/helpers/application_helper.rb):

    def page_title(separator = " – ")
  [content_for(:title), 'My Cool Site'].compact.join(separator)
end

def page_heading(title)
  content_for(:title){ title }
  content_tag(:h1, title)
end

    Then in your layout view you can simply use:

    <title><%= page_title %></title>

    ...and in the view itself:

    <%= page_heading "Awesome" %>

    This way has the advantage of allowing you to shuffle where you stick the h1 tag for your title, and keeps your controller nice and free of pesky @title variables.

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