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Coming to eZ Platform from eZ Publish Platform

eZ Publish Platform (5.x) was a transitional version of the eZ CMS, bridging the gap between the earlier generation called eZ Publish (sometimes referred to as legacy), and the current eZ Platform and eZ Platform Enterprise Edition for Developers.

eZ Publish Platform introduced a new Symfony-based technology stack that could be run along the old (legacy) one. This bridging is still possible using something called Legacy Bridge, an optional package for eZ Platform. This fluid change allows eZ Publish users to migrate to eZ Platform in two steps, using the bridging as an intermediary stepping stone.

Upgrading eZ Publish Platform 5.4.x (Enterprise-) / 2014.11 (Community-edition) to eZ Platform v1.11 or higher

Things to be aware of when planning a migration

  1. While the instructions below are fully supported, we are aware that the community, partners and customers come from a wide range of different versions of eZ Publish, some with issues that do not surface before attempting a migration. That's why we and the community are actively gathering feedback on Slack and/or support channels for Enterprise customers to gradually improve the migration scripts and instructions. Reach out before you start so others who have done this before you can support you.

  2. As of eZ Platform v1.11, Legacy Bridge is a supported option for 1.x and future 2.x series. This means you can plan for a more gradual migration if you want, just like you could on eZ Publish Platform 5.x, with a more feature-rich version of eZ Platform and (with 2.x) also more recent version of Symfony. This is a great option for those who want the latest features and are comfortable with more frequent releases.

  3. Additionally there are some other topics to be aware of for the code migration from eZ Publish to eZ Platform:

    • Field Types reference for overview of Field Types that do and don't exist in eZ Platform
    • eZ Platform RichText Field Type capabilities, currently not covering Custom Tags
    • Symfony 2.8, this is also the case on later 5.4.x versions, but not the first ones including 2014.11
    • API changes. While we have a strict backwards compatibility focus, some deprecated API features were removed and some changes were done to internal parts of the system. See ezpublish-kernel:doc/bc/


If you are migrating from a legacy eZ Publish version, this page contains the information you need. However, first have a look at an overview of the process in Migrating from eZ Publish.

This section describes how to upgrade your existing  eZ Publish Platform  5.4/2014.11 installation to eZ Platform and eZ Enterprise. Make sure that you have a working backup of the site before you do the actual upgrade, and that the installation you are performing the upgrade on is offline.

Note on Paths

  • <old-ez-root>/: The root directory where the 5.4/2014.11 installation is located in, for example: /home/myuser/old_www/ or /var/sites/ezp/.
  • <new-ez-root>/: The root directory where the installation is located in, for example: /home/myuser/new_www/ or /var/sites/[ezplatform|ezplatform-ee]/.

Check for requirements

  • Information regarding system requirements can be found on the Requirements documentation page; notable changes include:
    • PHP 5.6, 7.0 or higher
    • MariaDB or MySQL 5.5 or higher (Postgres possible for upgrades, but not yet supported by the installer for new installations)
    • Browser from 2016 or newer for use with eZ Platform backend UI
  • This page assumes you have composer installed on the machine and that it is a recent version.

Upgrade steps

Step 1: Extract latest eZ Platform/Enterprise 1.11 or higher installation

The easiest way to upgrade the distribution files is to extract a clean installation of eZ Platform / eZ Enterprise to a separate directory.

Step 2: Move over code and config

2.1. Code

If you have code in src folder, move that over:

<old-ez-root>/src => <new-ez-root>/src

2.2. Composer
2.2.1 Move over own packages

Assuming you have own composer packages (libraries and bundles, but not eZ Publish legacy packages), execute commands like below to add them to new install in <new-ez-root>:

composer require --no-update "vendor/package:~1.3.0"

Adapt the command with your vendor, package, version number, and add "–dev" if a given package is for dev use. Also check if there are other changes in composer.json you should move over.

2.2.2 Install XmlText Field Type

While no longer bundled, the XmlText Field Type still exists and is needed to perform a migration from eZ Publish's XmlText to the new docbook-based format used by the RichText Field Type. If you plan to use Legacy Bridge for a while before migrating content, you'll also need this for rendering content with XMLText. From <new-ez-root> execute:

composer require --no-update "ezsystems/ezplatform-xmltext-fieldtype:^1.3.0"


As of v1.3, be aware this Field Type now uses the Content View system introduced in eZ Platform 1.0, so make sure you adapt custom templates and override rules if you plan to use this for rendering content (in Legacy Bridge setup).

2.3. Config

To move over your own custom configurations, follow the conventions below and manually move the settings over:

  • <old-ez-root>/ezpublish/config/parameters.yml => <new-ez-root>/app/config/parameters.yml
    • For parameters like before, for new parameters you'll be prompted on later step.
  • <old-ez-root>/ezpublish/config/config.yml => <new-ez-root>/app/config/config.yml
    • For system/framework config, and for defining global db, cache, search settings.
  • <old-ez-root>/ezpublish/config/ezpublish.yml => <new-ez-root>/app/config/ezplatform.yml
    • For SiteAccess, site groups and repository settings.

Changes to repository configuration

When moving configuration over, be aware that as of 5.4.5 and higher, repository configuration has been enhanced to allow configuring storage engine and search engine independently.

# Default ezplatform.yml repositories configuration with comments
    # Repositories configuration, set up default repository to support solr if enabled
            # For storage engine use kernel default (current LegacyStorageEngine)
            storage: ~
            # For search engine, pick the one configured in parameters.yml, either "legacy" or "solr"
                engine: %search_engine%
                connection: default

Make sure to adapt SiteAccess names

In the default configurations in ezplatform.yml you'll find existing SiteAccesses like site, and depending on installation perhaps a few others, all under a site group called site\_group. Make sure to change those to what you had in ezpublish.yml to avoid issues with having to log in to your website, given user/login policy rules will need to be updated if you change names of SiteAccess as part of the upgrade.

2.4. Bundles

Move over registration of your bundles you have from src and from composer packages, from old to new kernel:

<old-ez-root>/ezpublish/EzPublishKernel.php => <new-ez-root>/app/AppKernel.php

2.5. Optional: Install Legacy Bridge

If you don't plan to migrate content directly to newer eZ Platform Field Types, you can optionally install Legacy Bridge and gradually handle code and subsequent content migration afterwards. For installation instructions see here.


The Legacy Bridge integration does not have the same performance, scalability or integrated experience as a pure Platform setup. Like on eZ Publish Platform 5.x there are known edge cases where, for instance, cache or search index won't always be immediately updated across the two systems using the bridge. This is one of the many reasons why we recommend a pure Platform setup where that is possible.

As eZ Publish legacy is installed via composer, we need to take care of placing some files outside its generated <new-ez-root>/ezpublish_legacy/ folder, and for instance use symlink to place them inside during installation.

  1. For design and settings files that you typically version in git, you can now take advantage of Legacy Bridge's built-in symlink convention. So as installation already hinted about, you can generate a structure and set up symlinks using app/console ezpublish:legacy:symlink -c. This will create folders you can use below in <new-ez-root>/src/legacy_files/.

  2. The same goes for the <new-ez-root>/ezpublish_legacy/var/[<site>/]storage folder. However, as it is typically not versioned in git, there's no predefined convention for this. If you create a folder within your project structure for symlinking into this folder, as opposed to a mount somewhere else, make sure to mark this folder as ignored by git once it and the corresponding .keep file have been added to your checkout. The example below will assume <new-ez-root>/src/legacy_files/storage was created for this purpose, if you opt for something else just adjust the instructions.

2.5.2 Upgrade the legacy distribution files

The easiest way to upgrade the distribution files is to copy the directories that contain site-specific files from the existing 5.4 installation into /<ezplatform>/ezpublish_legacy. Make sure you copy the following directories:

  • <old-ez-root>/ezpublish_legacy/design/<your_designs> => <new-ez-root>/src/legacy_files/design/<your_designs>
    • Do NOT include built-in designs: admin, base, standard or admin2
  • <old-ez-root>/ezpublish_legacy/settings/siteaccess/<your_siteaccesses> => <new-ez-root>/src/legacy_files/settings/siteaccess/<your_siteaccesses>
  • <old-ez-root>/ezpublish_legacy/settings/override/* => <new-ez-root>/src/legacy_files/settings/override/*
  • Other folders to move over (or potentially set up symlinks for) if applicable:
    • ezpublish_legacy/var/storage/packages
    • ezpublish_legacy/extension/* (do NOT include the built-in / composer provided ones, like: ezflow, ezjscore, ezoe, ezodf, ezie, ezmultiupload, ezmbpaex, ez_network, ezprestapiprovider, ezscriptmonitor, ezsi, ezfind)
    • ezpublish_legacy/config.php and ezpublish_legacy/config.cluster.php


Since writable directories and files have been replaced / copied, their permissions might have changed. You most likely need to reconfigure webserver user permissions as instructed further down.

2.6 Binary files

Binary files can simply be copied from the old to the new installation:

<old-ez-root>/web/var[/<site_name>]/storage => <new-ez-root>/web/var[/<site_name>]/storage


In the eZ Publish Platform 5.x installation web/var is a symlink to ezpublish_legacy/var, so if you can't find it in path above you can instead copy the storage files to the similar ezpublish_legacy/var[/<site_name>]/storage path.

2.7 Re-apply permissions and update composer

Since writable directories and files have been replaced / copied, their permissions might have changed. You need to re-apply them.

When that is done, execute the following to update and install all packages from within <new-ez-root>:

composer update --prefer-dist


At the end of the process, you will be asked for values for parameters.yml not already moved from old installation, or new (as defined in parameters.yml.dist).

2.8 Register EzSystemsEzPlatformXmlTextFieldTypeBundle

Add the following new bundle to your new kernel file, <new-ez-root>/app/AppKernel.php:

new EzSystems\EzPlatformXmlTextFieldTypeBundle\EzSystemsEzPlatformXmlTextFieldTypeBundle(), 

Step 3: Upgrade the database

3.1. Execute update SQL

Import to your database the changes provided in one of the following files. It's also recommended to read inline comments as you might not need to run some of the queries:

MySQL: <new-ez-root>/vendor/ezsystems/ezpublish-kernel/data/update/mysql/dbupdate-5.4.0-to-6.13.0.sql

Postgres: <new-ez-root>/vendor/ezsystems/ezpublish-kernel/data/update/postgres/dbupdate-5.4.0-to-6.13.0.sql

3.2. Once you are ready to migrate content to Platform Field Types

Steps here should only be done once you are ready to move away from legacy and Legacy Bridge, as the following Field Types are not supported by legacy. In other words, content you have migrated will not be editable in legacy admin interface anymore, but rather in the more modern eZ Platform back-end UI, allowing you to take full advantage of what the Platform has to offer.

3.2.1 Migrate XmlText content to RichText

If you are ready to migrate your eZ Publish XMLText content to the eZ Platform RichText format and start using pure eZ Platform setup, you can use a script to migrate content from the XmlText format to the new RichText format. Execute the following from <new-ez-root>:

php app/console ezxmltext:convert-to-richtext -v

The command example suggests using the verbose flag. This is optional, but recommended as we are actively gathering feedback on how it works with older eZ Publish content, and on how we can improve it both via issues in the repository, and on Slack.

Also, note that if you have made custom image classes, you must also provide their content class identifiers:

php app/console ezxmltext:convert-to-richtext --image-content-types=image,thumbnail,profile -v

The script needs to know these identifiers in order to convert <ezembed> tags correctly. Failing to do so will prevent the editor from showing image thumbnails of embedded image objects. You may find the image Content Types in your installation by looking for these settings in content.ini(.append.php):



Version of the migration script in ezplatform-xmltext-fieldtype prior to v1.6.0 would fail to convert embedded images correctly. If you have a database which you have already converted with an old version, you may rerun the convert-to-richtext command with the following options:

php app/console ezxmltext:convert-to-richtext --fix-embedded-images-only --image-content-types=image,thumbnail,profile -v


There is no corresponding ImagesClassList[] setting in eZ Platform. So even though you have customer image classes, you don't need to configure this in the eZ Platform configuration when migrating.

If you later realize that you provided the convert script with incorrect image Content Type identifiers, it is perfectly safe to re-execute the command as long as you use the --fix-embedded-images-only.

So, if you first ran the command:

php app/console ezxmltext:convert-to-richtext --image-content-types=image,thumbnail,profile -v

But later realize the last identifier should be custom_image, not profile, you may execute :

php app/console ezxmltext:convert-to-richtext --image-content-types=image,thumbnail,custom_image -v

The last command would then ensure embedded objects with Content Type identifier profile are no longer tagged as images, while embedded objects with Content Type identifier custom_image are.

3.2.2 Migrate Page field to Landing Page (eZ Enterprise only)

If you use Page field (ezflow) and an eZ Enterprise subscription, and are ready to migrate your eZ Publish Flow content to the eZ Enterprise Landing Page forma, you can use a script to migrate your Page content to Landing Page, to start using a pure eZ Enterprise setup. See Migrating legacy Page field (ezflow) to Landing Page (Enterprise) for more information.

3.2.3 Add other eZ Enterprise schemas (eZ Enterprise only)

For date-based publisher and form builder, there are additional tables, you can import them to your database using the following sql files: <new-ez-root>/vendor/ezsystems/date-based-publisher/bundle/Resources/install/datebasedpublisher_scheduled_version.sql, <new-ez-root>/vendor/ezsystems/ezstudio-form-builder/bundle/Resources/install/form_builder.sql, <new-ez-root>/vendor/ezsystems/ezstudio-notifications/bundle/Resources/install/ezstudio-notifications.sql

Step 4: Re-configure web server and proxy

Varnish (optional)

If you use Varnish, the recommended Varnish (4 or higher) VCL configuration can be found in the doc/varnish folder. See also the Using Varnish page.

Web server configuration

The officially recommended virtual configuration is now shipped in the doc folder, for both apache2 (doc/apache2) and nginx (doc/nginx). Both are built to be easy to understand and use, but aren't meant as drop-in replacements for your existing configuration.

As was the case starting 5.4, one notable change is that SetEnvIf is now used to dynamically change rewrite rules depending on the Symfony environment. It is currently used for the assetic production rewrite rules.

Assets from the various bundles need to be made available for the webserver through the web/ document root. Execute the following commands from <new-ez-root>:

php app/console assets:install --env=prod --symlink
php app/console assetic:dump --env=prod

Potential pitfalls

Unstyled login screen after upgrade

It is possible that after the upgrade your admin screen will be unstyled. This may happen because the new SiteAccess will not be available in the database. You can fix it by editing the permissions for the Anonymous user. Go to Roles in the Admin Panel and edit the Limitations of the Anonymous user's user/login policy. Add all SiteAccesses to the Limitation, save, and clear the browser cache. The login screen should now show proper styling.

Translating URLs

If your legacy site uses old-style URL aliases, to upgrade them successfully you need to apply a workaround to the slug converter. Where the slug converter service is defined, set second config parameter to use urlalias_compat by adding a new argument to the existing settings:

# in vendor/ezsystems/ezpublish-kernel/eZ/Publish/Core/settings/storage\_engines/common.yml
        class: "%ezpublish.persistence.slug_converter.class%"
            - "@ezpublish.api.storage_engine.transformation_processor"
            - { transformation: "urlalias_compat" }

In case of URLs with extended UTF-encoded names, the workaround must make use of urlalias_iri:

        class: "%ezpublish.persistence.slug_converter.class%"
            - "@ezpublish.api.storage_engine.transformation_processor"
            - { transformation: "urlalias_iri" }

Migrating legacy Page field (ezflow) to Landing Page (Enterprise)

To move your legacy Page field / eZ Flow configuration to eZ Platform Enterprise Edition you can use a script that will aid in the migration process.

The script will automatically migrate only data – to move custom views, layouts, blocks etc., you will have to provide their business logic again.


The migration script will operate on your current database.

Make sure to back up your database in case of an unexpected error.

To use the script, do the following:


Make a note of the paths to .ini files which define your legacy blocks. You will need these paths later.

1. Add ezflow-migration-toolkit to composer.json in your clean Platform installation.

"ezsystems/ezflow-migration-toolkit": "^1.0.0"

2. Add ezflow-migration-toolkit to AppKernel.php.

// AppKernel.php
new EzSystems\EzFlowMigrationToolkitBundle\EzSystemsEzFlowMigrationToolkitBundle()

3. Clear cache.

app/console cache:clear

4. Run the script with the following parameters:

  • absolute path of your legacy application
  • list of .ini files which define your legacy blocks

Script command

app/console ezflow:migrate <legacy path> —ini=<block definitions> [—ini=<another block definition> ...]

Example of the migration script command

app/console ezflow:migrate /var/www/ —ini=extension/myapplication/settings/block.ini.append.php

5. You will be warned about the need to create a backup of your database. Proceed only if you are sure you have done it.

A MigrationBundle will be generated in the src/ folder.

You will see a report summarizing the results of the migration.

6. Add MigrationBundle to AppKernel.php.

// AppKernel.php
new MigrationBundle\MigrationBundle()

7. Clear cache again.

At this point you can already view the initial effects of the migration, but they will still be missing some of your custom content.

The MigrationBundle generates placeholders for layouts in the form of frames with a data dump.

For blocks that could not be mapped to existing Landing Page blocks, it will also generate PHP file templates that you need to fill with your own business logic.

Read the Docs