isinclude Element

Include the contents of one template inside another or the contents of another URL.

(template = template_path) | (url = url_path)

You must include either template or URL, but not both:

  • template = template_path Allowed data type: string or expression. template_path specifies the name and location of the included template. Use a fixed value or an expression. This is a local include.
  • url = url_path Allowed data type: string or expression. url_path specifies a URL via a literal string or an expression. This includes the content of this URL, typically a URL from the same server. This is a remote include. <doc-content-callout title="Note" variant="note"> <div><p>SEO URLs can't be included remotely.</p></div> </doc-content-callout>
sf-toolkit

Allowed data type: string

on renders the dwMarker tag around includes. This can cause Internet Explorer to enter Quirks mode.

off suppresses the dwMarker tag around includes. See the section on suppressing the dwMarker tag.

The template being included can be as complex as an entire page template, or as simple as a single line of HTML code.

Iterators used in the including template can be referenced from the included template. This is useful if you want to use an included template in a loop statement. To avoid infinite template processing caused by self-includes, the maximum include depth is fixed to 10.

Includes from another server aren’t supported.

There are two possibilities when referencing an included template: The ISML code is processes or the ISML code isn't processed

If the template is stored in a Salesforce B2C Commerce cartridge, you can use the template attribute to specify the path and the file name of the template to be included (the specified path has to be relative to your cartridge's root/templates/default language directory).

For example:

  • The path to the ISML template can only contain slashes. The template name can have the suffix ".isml" or not. If the suffix isn't present, it's appended automatically.

  • The template path can be a fixed name or an expression, for example:

    <isinclude template="reporting/ReportABTesting.isml"> is a fixed name.

    <isinclude template="${pdict.Content.template}"> is an expression.

  • The included template, contained in the Pipeline Dictionary, is determined by the template attribute of the Content object inside of the Pipeline Dictionary.

  • The maximum include depth for template includes <isinclude template=""> is 20.

    This is necessary to protect template processing from recursive includes. If the include depth is reached or exceeded, an error is logged and templates of a higher include depth are omitted. This is because local includes are processed by the application server itself.

Example:

The following example shows a standard include of a template. The template blueBar.isml file could be used in a template to show a menu bar on the storefront pages.

This menu bar gives the customer access to different storefront functionality, such as a basket or the search mask. Using <isinclude> this way implements server-side frames that give you the full functionality of frames without the caveats of client-side frames due to incompatibilities between different browsers.

This example shows a standard include where the included template references an iterator of the including template:

The second possibility is to reference a remote URL that is located on another server accessible via an HTTP or HTTPS connection. In this case, use the URL attribute to specify a valid URL. Using the URL attribute directs B2C Commerce eCommerce to open an HTTP(S) connection to the specified remote system during run time, and to add the result of this HTTP(S) request to the template. Remote templates are useful if you want to avoid client-side frames in HTML or when combining data in one template that comes from multiple servers.

The included URL can have a different caching policy. This lets you, for example, embed a dynamic snippet of HTML, which isn't cached, into a completely cached surrounding page. Conversely, a fully cached snippet can be embedded into a fully dynamic and uncached page.

for example:

  • Use the URLUtils helper API class to construct a valid URL string.
  • The maximum include depth for recursive URL includes <isinclude url=""> is 16.
  • This is part of the B2C Commerce Web Server configuration, because remote includes are sent back to the Web Adapter, which performs another call to the application server. If the maximum include depth is reached, the B2C Commerce Web Server logs an error and cancels further request processing.

Example:

This example shows an include that combines data into one template. In this case, <isinclude> triggers another pipeline to show hot deals on the storefront entry page. The call is executed after the Webserver processes the initial request. Therefore, data in the Pipeline Dictionary is no longer available.

This example illustrates dynamic template selection. The name of the referenced template is built during run time.

If you’ve enabled the Storefront Toolkit, the content of every <isinclude> tag is surrounded by a dwMarker tag. Under some circumstances, the dwMarker tag causes Internet Explorer to change into Quirks mode.

For example:

You can now add the sf-toolkit="off" attribute in your isinclude tag to suppress the dwMarker tag from being written into your HTML page.

This suppresses the dwMarker tag around the content produced by test/customassets.isml. The new attribute is only supported by local includes. However, remote includes don't support this attribute.

The sf-toolkit="off" attribute isn’t applied recursively. The dwmarker tag is only suppressed for the include tag itself, and not for any child-"isinclude" inside of that "include" template.