Include meta to JSF

Question

I have a JSF page which include <head>...</head> from another page. Basically it's looks like this:

<ui:include src="/path/head.xhtml"/>
<h:body>
...
</h:body>

I want to add unique <meta name="description" content="Unique content"> to each page which use <ui:include src="/path/head.xhtml"/>. I have 2 ideas:

Can I put <meta name="description".../> to head-page and overwrite it on include-pages?
Or maybe I can put somehow this <meta.../> from include pages to head?

score 3 · Accepted Answer · answered Dec 05 '19 at 14:08

Several ways:

Use <ui:insert> without name and have body of <ui:include> override it:

/WEB-INF/includes/head.xhtml

<h:head>
    ...
    <ui:insert>
        <meta name="description" content="Default description" />
    </ui:insert>
    ...
</h:head>

/page.xhtml

<ui:include src="/WEB-INF/includes/head.xhtml">
    <meta name="description" content="Overridden description" />
</ui:include>

Use <ui:insert> with name, and use <ui:decorate><ui:define> instead of <ui:include>:

/WEB-INF/includes/head.xhtml

<h:head>
    ...
    <ui:insert name="description">
        <meta name="description" content="Default description" />
    </ui:insert>
    ...
</h:head>

/page.xhtml

<ui:decorate template="/WEB-INF/includes/head.xhtml">
    <ui:define name="description">
        <meta name="description" content="Overridden description" />
    </ui:define>
</ui:decorate>

Simply use <ui:param> with solely the meta content to keep code DRY when you already have a default description:

/WEB-INF/includes/head.xhtml

<h:head>
    ...
    <meta name="description" content="#{empty description ? 'Default description' : description}" />
    ...
</h:head>

/page.xhtml

<ui:include src="/WEB-INF/includes/head.xhtml">
    <ui:param name="description" value="Overridden description" />
</ui:include>

Include meta to JSF

1 Answers1

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