Release notes

Version 0.5


  • There has been a huge overhaul of the Javascript.
  • The map base layers are now configurable in
  • The map has been simplified and now uses OpenLayers 2.12.
  • The “advanced search” has been removed. Instead, it is possible to perform advanced searches by writing the appropriate code in the single search box. The “Search tips” link beside the search box provides instructions.
  • The skin has been modernized and simplified and uses Bootstrap. This is work in progress.
  • The installation procedure has been greatly simplified.
  • Django 1.8 support.

Backwards incompatible changes

  • Only supports Python 2.7 and Django 1.8.
  • Removed apps hchartpages and dbsync. These are expected to be replaced by independent applications in the future, but no promises are made. Enhydris is to become a small, reliable and well-maintained core.

Upgrading from 0.2

Version 0.5 contains some tricky database changes. The upgrade procedure is slightly complicated, and uses the intermediate Enhydris version 0.3, which exists only for this purpose.

(Note for developers: the reason for this procedure is that hcore used to have a foreign key to a dbsync model. As a result, the initial Django migration listed dbsync as a dependency, making it impossible to remove dbsync.)

The upgrade procedure is as follows:

  1. Backup your database (you are not going to use this backup unless something goes wrong and you need to restore everything to the state it was before).

  2. Make sure you are running the latest version of Enhydris 0.2 and that you have applied all its database upgrades (running python migrate should apply all such upgrades, and should do nothing if they are already applied).

  3. Follow the Enhydris 0.5 installation instructions to install Enhydris in a new virtualenv; however, rather than installing Enhydris 0.5, install, instead, Enhydris 0.3, like this:

    pip install 'enhydris>=0.3,<0.4'
  4. Apply the database upgrades:

    python migrate --fake-initial
  5. Install Enhydris 0.5. The simplest way (but not the safest) is this:

    pip install --upgrade --no-deps 'enhydris>=0.5,<0.6'

    However, it is best to discard your Enhydris 0.3 virtualenv and create a new one, in which case you would install Enhydris 0.5 like this:

    pip install 'enhydris>=0.5,<0.6'
  6. Have your database password ready and run the following to empty the django_migrations database table:

    python dbshell
    delete from django_migrations;
  7. Repopulate the django_migrations table:

    python migrate --fake

Changes in 0.5 microversions

  • Removed embedmap view (in 0.5.1)
  • Removed example_project, which was used for development instances; instead, added instructions in README.rst on how to create one (in 0.5.1).
  • Fixed internal server error when editing station with ENHYDRIS_USERS_CAN_ADD_CONTENT=True (in 0.5.2).
  • Since 0.5.3, Enhydris depends on pthelma<0.12, since pthelma 0.12 has a backwards incompatible change.

Version 0.2


There have been too many changes to list here in detail. The most important ones (particularly those affecting backwards compatibility) are:

  • Removed apps hrain, gis_objects, contourplot, hfaq, contact. hfaq and contact should be replaced with flatpages. hrain, gis_objects, and contourplot are not supported any more. If they are included again in the future, they will be maintained separately as distinct applications. Enhydris is to become a small, reliable and well-maintained core.
  • Removed front page; front page is now station list
  • Compatible with Django 1.5 and 1.6.

Upgrading from 0.1

Essentially you are on your own. It’s likely that just installing Enhydris 0.2 and executing python migrate will do the trick. Don’t forget to backup your database before attempting anything!