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How to find referring links to File and Image objects

by Nguyen, T. Kim last modified Oct 02, 2014 05:10 PM
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an External Method inspired by Paul Rentschler's pwrentch.FileReferences

Thanks go to Paul Rentschler for his very cool product!

If you want to find what other items on a Plone site refer to (include a link to) a particular File or Image object, create an External Method called "reflist".

To invoke it, append "/reflist" to the URL of the File or Image object, e.g.

It will return a list of clickable URLs for the objects (usually pages) linking to the current object.

The file system code goes into your Extensions folder.  Call it "", with the following contents:

from Products.CMFCore.utils import getToolByName

def reflist(self):
    out = []
    reference_catalog = getToolByName(self, 'reference_catalog')
    references = reference_catalog.getBackReferences(self)
    for ref in references:
        out.append('<li><a href="%s">%s</a></li>' % (ref.getSourceObject().absolute_url(), ref.getSourceObject().absolute_url() ))
    return "\n".join(out)

Create the External Method in your portal_skins/custom folder, with:

  • ID "reflist"
  • module name "reflist"
  • function name "reflist"


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