Users settings

Here you will be able to specify page URLs that should be excluded from processing by both caching as content processing engines.

Cache

Enable

Activates users caching.
Uusers caching is a very complex thing and we are always ready to assist you in its setup.
Also, in this mode additional cookie __Secure-wp_seraph_accel_sess_* is set when caching session is active.

Separate sessions

In some rare cases, sessions can be combined into one.

 

Cache revalidation

Allow from browser

Allows a user to revalidate the current page by force refreshing in the browser (e.g. pressing Ctrl+F5 in Chrome).

Time to live for cleanup

Not earlier than the expiration of this time after the last change of content, it will be removed only from users cache by using the ‘Cleanup’ function to decrease cache storage space.
If there is no need, it can be simply turned off by setting everything to 0.

 

Data dependencies groups

It’s a list of groups that each consists of a set of cookies, arguments, and database table dependencies.

Settings for each group:

Enable

Enables/disables a specific group for easy customization, so as not to delete an element.

Group name

Optional name to identify.

Cookies

Page requests having cookie names that begin with any of the specified strings will be treated as user-dependent and will be managed by the cache engine separately.
If name begins with one of /~@;%`# it is interpreted as regular expression. Also, cookie’s value can be compared by appending name with = or != and exact value. E.g. @^wcml_client_currency$@ != EUR.

URI arguments

Page URL’s having arguments that begin with any of the specified strings will be excluded from caching.

Tables

List of user data-dependent tables that are used when user caching is active.
When the caching engine detects that user data has been changed according to specified tables, then it revalidates user session cached data to provide fresh content to the user.
See an example below.

Settings for each item:

• Table name

Database name of the table. Template %PREFIX% can be used that will be replaced by WordPress common database table name prefix.

• Column name

Table column name with user ID or field in the related table name.

• Related table name

Database name of the related to the initial table. Template %PREFIX% can be also used.

• Column name in related table

Table column name with user ID.

• Link ID column name in related table

Table column name that pointed from an initial table column.

• Column conditions in related table

Filters the rows in the related table by specified conditions.

 

Example by WooCommerce.

This plugin has its own post type to provide customer (user) orders storing.
When the order is changed, we need to find out the related user ID and revalidate its cached data. So, orders are stored in the wp_posts table and column ID contains the order ID.
Next, each order has information about the customer (user) that is stored in the post’s meta table named wp_postmeta with meta_key = _customer_user, post_id contains order ID, and meta_value contains needed user ID.

Finally, the depended table settings will be: