Tries to purge page cache when not enabled

[Nicscott01]

I believe this is a bug with SpinupWP and not Breakdance. My setup is as follows:

WP v6.4.2
Breakdance (page builder) v1.7.0
PHP 8.1 and 8.2

I typically build a site with Page Cache off, so this is when this issue happens. If I turn SpinupWP page cache on, this issue won't happen. If I have page cache off in SpinupWP and don't have the SpinupWP plugin activated, this problem won't happen.

I get a 500 server error from Breakdance editor when I try to save the page. The stack trace:

[22-Dec-2023 17:36:35 UTC] Breakdance\AJAX\BreakdanceAjaxHandlerException thrown with message "file_exists(): Passing null to parameter #1
 ($filename) of type string is deprecated"

Stacktrace:
#17 Breakdance\AJAX\BreakdanceAjaxHandlerException in /sites/example.com/files/web/app/plugins/breakdance/plugin/ajax/ap
i.php:113
#16 Breakdance\Lib\Vendor\Whoops\Exception\ErrorException in /sites/example.com/files/web/app/plugins/spinupwp/src/Cache
.php:326
#15 file_exists in /sites/example.com/files/web/app/plugins/spinupwp/src/Cache.php:326
#14 SpinupWp\Cache:delete in /sites/example.com/files/web/app/plugins/spinupwp/src/Cache.php:260
#13 SpinupWp\Cache:purge_page_cache in /sites/example.com/files/web/app/plugins/spinupwp/src/Cache.php:142
#12 SpinupWp\Cache:purge_post_on_update in /sites/example.com/files/web/wp/wp-includes/class-wp-hook.php:324
#11 WP_Hook:apply_filters in /sites/example.com/files/web/wp/wp-includes/class-wp-hook.php:348
#10 WP_Hook:do_action in /sites/example.com/files/web/wp/wp-includes/plugin.php:517
#9 do_action in /sites/example.com/files/web/wp/wp-includes/post.php:5390
#8 wp_transition_post_status in /sites/example.com/files/web/wp/wp-includes/post.php:4650
#7 wp_insert_post in /sites/example.com/files/web/wp/wp-includes/post.php:4862
#6 wp_update_post in /sites/example.com/files/web/app/plugins/breakdance/plugin/data/save.php:54
#5 Breakdance\Data\save_document in /sites/example.com/files/web/app/plugins/breakdance/plugin/ajax/api.php:111
#4 call_user_func_array in /sites/example.com/files/web/app/plugins/breakdance/plugin/ajax/api.php:111
#3 Breakdance\AJAX\{closure} in /sites/example.com/files/web/wp/wp-includes/class-wp-hook.php:324
#2 WP_Hook:apply_filters in /sites/example.com/files/web/wp/wp-includes/class-wp-hook.php:348
#1 WP_Hook:do_action in /sites/example.com/files/web/wp/wp-includes/plugin.php:517
#0 do_action in /sites/example.com/files/web/wp/wp-admin/admin-ajax.php:188

From what I can see, it looks like SpinupWP tries to purge page cache regardless of whether or not it is on. When it's not on, it passes a null value into the delete method, and that's when it fires the error in Breakdance.

[Nicscott01]

Similar to what was reported in #64

[Jamesclark32]

@Nicscott01 We've just released version 1.6 of the plugin which includes the fix from #64 as well as a few other improvements. Is this problem continuing for you with the update in place?