eZ Publish 5.2 has a strong focus on backwards compatibility and thus lets you reuse code you might have written for 4.x, including templates and modules.
Read Intro for eZ Publish 4.x/3.x developers to have an overview of common concepts and terminology changes.
Legacy Template inclusion
It is possible to include old templates (.tpl) into new ones:
Scalar and array parameters are passed to a legacy template as-is.
Objects, however, are being converted in order to comply the legacy eZ Template API. By default a generic adapter is used, exposing all public properties and getters. You can define your own converter by implementing the appropriate interface and declare it as a service with the
Location objects from the Public API are converted into
eZContentObjectTreeNode objects (re-fetched).
Running legacy code
eZ Publish 5.2 still relies on the legacy kernel (from 4.x) and runs it when needed inside an isolated PHP closure, making it sandboxed. This is available for your use as well making it possible to run some PHP code inside that sandbox through the
The example above is very simple and naive - in fact for accessing configuration settings from the Legacy Stack using the ConfigResolver is recommended.
Using the legacy closure, you'll be able to even run complex legacy features, like an eZ Find search:
Routing fallback & sub-requests
Any route that is not declared in eZ Publish 5.2 in an included
routing.yml and that is not a valid UrlAlias will automatically fallback to eZ Publish legacy (including admin interface).
This allows all your old modules to work as before, out-of-the-box (including kernel modules), and also allows you to reuse this code from your templates using sub requests:
Using eZ Publish 5.2 and Symfony features in Legacy
If for some reason you need to develop a legacy module and access to eZ Publish 5 / Symfony features (i.e. when developing an extension for admin interface), you'll be happy to know that you actually have access to all services registered in the whole framework, including bundles, through the service container.
The example below shows how to retrieve the content repository and the logger.
The example above works in legacy modules and CLI scripts
Running legacy scripts and cronjobs
Note: This feature has been introduced in eZ Publish 5.1.
Running legacy scripts and cronjobs through the Symfony stack is highly recommended !
Otherwise, features from the Symfony stack cannot be used (i.e. HTTP cache purge).
Legacy scripts can be executed form the Symfony CLI, by using the
ezpublish:legacy:script command, specifying the path to the script as argument.
The command will need to be executed from eZ Publish's 5.2 root, and the path to the desired script must exist in the
Here's a usage example:
If you want to access the script's help please be aware that you will need to use the newly introduced
--legacy-help option, since --help is already reserved for the CLI help.
Here's an example:
The same logic will apply for cronjob execution.
Legacy cronjobs are triggered by the
runcronjobs.php legacy script, which expects the name of the cronjob to run as a parameter.
This is how you can run cronjobs from the Symfony CLI:
Also, if you require using additional script options, please be sure to use the long name, such as
--debug to avoid conflicts between script and CLI options.
For more details regarding legacy cronjobs execution please refer to the Running cronjobs chapter existing in doc.ez.no.