invalidation

Configure invalidation to invalidate routes when some other routes are requested.

# app/config/config.yml
fos_http_cache:
    invalidation:
        enabled: true    # Defaults to 'auto'
        rules:
            -
                match:
                    attributes:
                        _route: "villain_edit|villain_delete"
                routes:
                    villains_index: ~    # e.g., /villains
                    villain_details:     # e.g., /villain/{id}
                        ignore_extra_params: false    # Defaults to true

enabled

type: enum, default: auto, options: true, false, auto

Enabled by default if you have configured the cache manager with a proxy client.

expression_language

type: string

If your application is using a custom expression language which is extended from Symfony’s expression language component, you need to define it as a service and configure it as expression_language in the sections where you want to use it.

Your custom expression functions can then be used in the @InvalidateRoute annotations.

# app/config/config.yml
fos_http_cache:
    invalidation:
        expression_language: app.expression_language

rules

type: array

A set of invalidation rules. Each rule consists of a match definition and one or more routes that will be invalidated. Rules are checked in the order specified, where the first match wins. The routes are invalidated when:

1. the HTTP request matches all criteria defined under match

2. the HTTP response is successful.

match

type: array

A match definition that when met, will execute the rule effect. See match.

routes

type: array

A list of route names that will be invalidated.

ignore_extra_params

type: boolean default: true

Parameters from the request are mapped by name onto the route to be invalidated. By default, any request parameters that are not part of the invalidated route are ignored. Set ignore_extra_params to false to set those parameters anyway.

A more detailed explanation: assume route villain_edit resolves to /villain/{id}/edit. When a client successfully edits the details for villain with id 123 (at /villain/123/edit), the index of villains (at /villains) can be invalidated (purged) without trouble. But which villain details page should we purge? The current request parameters are automatically matched against invalidate route parameters of the same name. In the request to /villain/123/edit, the value of the id parameter is 123. This value is then used as the value for the id parameter of the villain_details route. In the end, the page villain/123 will be purged.