This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

Plone’s getObjPositionInParent catalog index is optimized for fast writing and for sorting small result sets of objects which are loaded anyway in the request. The actual order is not stored in the catalog at all but only on the parent object. This means that sorting a result set can only be done by loading the parent object and getting the object position from it.

This works well for Plone’s standard use cases such as the navigation portlet or the portal tabs, but doing large queries with a bigger depth is very slow since all container objects must be woken up.

The goal of this package is to replace the getObjPositionInParent with an actual index storing the order in the catalog in a regular FieldIndex.


Plone 4.3.x


  • Add the package to your buildout configuration:
eggs +=
  • Install the generic setup profile ftw.gopip:default.


This package replaces the GopipIndex, which is a fake index not storing any data, with a FieldIndex, which stores all positions.

The challenge is to keep the index properly up to date. This is achieved by customizing the standard IOrdering adapters and tracking changes there, so that we do not need to rely on other components triggering events at the right moment.

The three standard IOrdering adapters are wrapped with a tracking proxy:

  • DefaultOrdering (providing IExplicitOrdering)
  • PartialOrdering (providing IExplicitOrdering)
  • UnorderedOrdering (providing IOrdering)

If there are custom IOrdering or IExplicitOrdering adapters, they must be tracked accordingly.

There is no IOrdering adapter for the Plone site root. An IReorderedEvent-subsciber takes care of tracking first level reorderings.


  1. Fork this repo
  2. Clone your fork
  3. Shell: ln -s development.cfg buildout.cfg
  4. Shell: python
  5. Shell: bin/buildout
  6. Shell: bin/test to test your changes.

Or start an instance by running bin/instance fg.

Release History

Release History


This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ftw.gopip-1.0.0.tar.gz (6.9 kB) Copy SHA256 Checksum SHA256 Source Sep 26, 2016

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