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Upgrade notes

Although we try to keep things backward compatible, sometimes this is just impossible, e.g. when renaming things for the sake of clarity.

These notes list the most important changes between Zotonic versions that require attetion for site developers when things change in incompatible ways or get deprecated.

Upgrading to Zotonic 0.9

CSS changes

Due to the move to Bootstrap, the following CSS changes need to be made in your templates:

Old CSS selector New CSS selector
.sf-menu .nav
.sf-menu a.current .nav a
ul.pager div.pagination ul


The Erlang modules formerly known as Webmachine Resources (resources/resource_*.erl) have been renamed to controllers. They live in the controllers/ folder in a module. This was done to eliminate the confusion between webmachine resources and the "rsc" table of the Zotonic datamodel.

This means that you have to update your custom dispatch rules. Each dispatch rule which uses one of Zotonic's resource_* controllers, needs to be changed from this:

{article,      ["article", id, slug],      resource_page,      [ {template, "article.tpl"} ]},

to this:

{article,      ["article", id, slug],      controller_page,      [ {template, "article.tpl"} ]},

et cetera.

Also, when you wrote your own controllers, you need to rename your resource_ module to use the controller prefix, and make sure it uses the new include file names.

The following include files have been renamed:

Old filename New filename
include/resource_html.hrl include/html_controller.hrl
include/webmachine_resource.hrl include/webmachine_controller.hrl

HTTPS support

HTTPS support was moved from the core into a new module, :ref:`mod_ssl`.

The global priv/config options ssl, ssl_certfile, ssl_keyfile and ssl_password do no longer have an effect. See :ref:`mod_ssl` on how to configure HTTPS support for Zotonic from 0.9 and up.

Removed controller

The under-used resource_home controller has been removed. Change your dispatch rules accordingly to use controller_template:

{home,  [],  resource_home,       []},

to this:

{home,  [],  controller_template, [{template, "home.tpl"}]},

Removed filters

The lenght_is filter has gone. Replace constructs like this:

{% if value|length_is:5 %}


{% if value|length == 5 %}


On startup you might see this message:

18:39:59.895 [error] z_module_manager:485 [sitename] Error starting module mod_backup: {error,{missing_dependencies,[rest]}}

mod_backup is now dependent on mod_rest, so you should enable that module in the module manager.


On startup you might see this message:

** /home/zotonic/zotonic/deps/z_logger/ebin/z_logger.beam hides /home/zotonic/zotonic/deps/webzmachine/ebin/z_logger.beam
** Found 1 name clashes in code paths

z_logger has been moved from its own reps/z_logger repo into webzmachine. You can delete the entire deps/z_logger directory.

Upgrading to Zotonic 0.8

Module versioning

From 0.8, modules have a schema version concept, which is used to install and update module-specific data (like managed tables, custom categories, default data). Previously this was either done in the module's init() or datamodel() function. The datamodel/1 function is no longer called upon module start.

Instead, modules export a -module_schema() attribute which contains an integer number, denoting the current module's version. On module initialization, Module:manage_schema/2 is called which handles installation and upgrade of data. See :ref:`manual-modules` for more information and example code.


The mailinglist has changed a bit. You need to manually enable the mod_logging module on upgrade. It should be enabled automatically, but please double-check.

Execute the following query to get email sending working:

alter table mailinglist_recipient add column is_bounced boolean not null default false;

Upgrading to Zotonic 0.7

Removed modules

To make Zotonic more lightweight and remove some of the build dependencies, some infrequently used modules have been removed from the core and moved to their own repository, at These modules are:

  • mod_search_solr
  • mod_pubsub
  • mod_slideshow
  • mod_broadcast
  • mod_imageclipper
  • mod_admin_event
  • mod_calendar
  • mod_emailer*

All modules, except mod_emailer can still be easily installed with the help of the zotonic installmodule command. The mod_emailer module (and its esmtp library) has been removed in favor of the native SMTP sending/receiving capabilities.

New SMTP architecture

The mod_emailer module has been removed in favor of a separate mail server process and queueing system. For more information please read the e-mail configuration page in the documentation.

The emailq table has become obsolete. You can remove the table from your existing Zotonic database.

Admin password

The admin password is now hardcoded in your site's config file. For sites that are upgrading, you have to add a line to your config file:

{admin_password, "letmein"}

The value in the config file always reflects the current admin password (as opposed to zotonic < 0.6!) and thus the admin password can only be changed by changing it there.

Admin extra richtext fields

If you have extra richtext (tinymce) fields in the admin, you need to rename the class tinymce of the textarea to the class name tinymce-init.

Upgrading to Zotonic 0.6

No notable upgrade measures need to be taken.

Upgrading to Zotonic 0.5

Some filters disappeared and changed into expression syntax: |eq, |ne, |lt, |gt, |not, etc.:

{% if id|eq:2 %} becomes {% if id == 2 %} {% if id|not %} becomes {% if not id %} et cetera.

The meaning of the query filters hassubject, hasobject, hassubjectpredicate and hasobjectpredicate has been reversed:[{query hasobject=id}]

becomes:[{query hassubject=id}]

and reverse:[{query hasobjectpredicate=id}]

becomes[{query hassubjectpredicate=id}] (and reverse)

resource_staticfile's root directory has changed from the site's template folder to the sites base folder, e.g. from site/templates/xx to site/xx.

The m_group` model no longer exists.

When you first install zotonic and want to logon into /admin, you dont need to give a password, just the username, 'admin'. It will then ask you to set the admin password.

User accounts need to be published otherwise their logon will be denied. Use this query to enable every user in the database:

update rsc set is_published=true
where category_id in
        (select distinct(id) from rsc where name='person')

If you have an overruled base template, make sure that a {% block content_area %} that spans the full width if your site is in there, because this is used to render the logon dialog for the admin.

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