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43 lines
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Markdown
43 lines
2.0 KiB
Markdown
# Custom Links
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Custom links allow users to display arbitrary hyperlinks to external content within NetBox object views. These are helpful for cross-referencing related records in systems outside of NetBox. For example, you might create a custom link on the device view which links to the current device in a network monitoring system.
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Custom links are created under the admin UI. Each link is associated with a particular NetBox object type (site, device, prefix, etc.) and will be displayed on relevant views. Each link is assigned text and a URL, both of which support Jinja2 templating. The text and URL are rendered with the context variable `obj` representing the current object.
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For example, you might define a link like this:
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* Text: `View NMS`
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* URL: `https://nms.example.com/nodes/?name={{ obj.name }}`
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When viewing a device named Router4, this link would render as:
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```no-highlight
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<a href="https://nms.example.com/nodes/?name=Router4">View NMS</a>
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```
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Custom links appear as buttons at the top right corner of the page. Numeric weighting can be used to influence the ordering of links.
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## Conditional Rendering
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Only links which render with non-empty text are included on the page. You can employ conditional Jinja2 logic to control the conditions under which a link gets rendered.
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For example, if you only want to display a link for active devices, you could set the link text to
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```jinja2
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{% if obj.status == 'active' %}View NMS{% endif %}
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```
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The link will not appear when viewing a device with any status other than "active."
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As another example, if you wanted to show only devices belonging to a certain manufacturer, you could do something like this:
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```jinja2
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{% if obj.device_type.manufacturer.name == 'Cisco' %}View NMS{% endif %}
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```
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The link will only appear when viewing a device with a manufacturer name of "Cisco."
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## Link Groups
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Group names can be specified to organize links into groups. Links with the same group name will render as a dropdown menu beneath a single button bearing the name of the group.
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