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Upgrading to the latest versions of The Events Calendar (3.4.1), The Events Calendar Pro (3.4), and Press Permit Core Pro (2.1.42) under the latest version of WordPress (3.8.1) didn’t solve the compatibility issue between The Events Calendar and Press Permit that causes no events to display when clicking from month to month. I knew it wouldn’t, but, hey, a girl can dream! I’ve done some research and unfortunately it was a known issue. Wish I had known this before I installed Press Permit Core, but I didn’t have much choice as we had originally used Role Scoper which went defunct and was replaced with Press Permit Core. C’est la vie! According to the WordPress.org plugin page (http://wordpress.org/plugins/press-permit-core/other_notes/), this incompatibility has existed since The Events Calendar version 1.6.3 at least. The developer suggests this workaround:

change the-events-calendar.class.php as follows :

add_filter( ‘posts_join’, array( $this, ‘events_search_join’ ) );
add_filter( ‘posts_where’, array( $this, ‘events_search_where’ ) );
add_filter( ‘posts_orderby’,array( $this, ‘events_search_orderby’ ) );
add_filter( ‘posts_fields’, array( $this, ‘events_search_fields’ ) );
add_filter( ‘post_limits’, array( $this, ‘events_search_limits’ ) );

to:

if( ! is_admin() ) {
add_filter( ‘posts_join’, array( $this, ‘events_search_join’ ) );
add_filter( ‘posts_where’, array( $this, ‘events_search_where’ ) );
add_filter( ‘posts_orderby’,array( $this, ‘events_search_orderby’ ) );
add_filter( ‘posts_fields’, array( $this, ‘events_search_fields’ ) );
add_filter( ‘post_limits’, array( $this, ‘events_search_limits’ ) );
}

I was able to find the the-events-calendar.class.php in the lib subdirectory, but those lines of code don’t exist as noted anymore.

Does anything in what the developer suggested give you a clue as to what could possible fix this problem?

I’ve posted to the support forums (http://wordpress.org/support/topic/incompatibility-with-the-events-calendar-and-pro) in the hopes of getting a response on the compatibility issue and maybe an updated workaround.

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I was able to test the website tonight. I deactivated all plugins except The Events Calendar and Pro and switched to the 2013 theme (I don’t have 2012). The calendar pages then loaded all events on both Firefox and IE. I then went through the plugins. The conflicting plugin in Press Permit Core (http://presspermit.com/) which we are running the Pro version of. And, the latest version (2.1.38). This is a vital plugin for the client as it is used to give all their staff access only to their section of the website. Is there anyone at Modern Tribe who has ever dealt with this plugin that might be able to figure out why it is causing this problem?

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I am unable to test deactivating all other plugins and setting the theme for Twenty Twelve at the moment. This is a very active live site. I will attempt to do this over the weekend and let you know what happens.

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Kelly, I just wanted to extend my sincere thanks for your taking the time to explain exactly what is going on and why this keeps happening. While my client may not understand the technical details, it helps me show them that you are working hard to solve the problem and not just saying ‘we’re working on it, a fix is coming.’ I appreciate that I have something to report back to my client with while we anxiously await the next release. Thank you for your time.

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This reply is private.

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That is workable for me. I will wait for the maintenance release and keep my fingers crossed that it will solve the problem. Thank you.

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I did do exactly what you are requesting on my test space. My test space is with the same hosting company, just on a different box. Do you want to see the System Information for that install? It would save me a ton of work I’ve already done and won’t have time to do until the weekend at the earliest. If you absolutely need the new install done on the same hosting account as the problem website, let me know and I will do my best to get it done this weekend.

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I posted my system information as requested, but as a private reply. I see no reference to it having been done on the support thread so if you didn’t received it, please let me know.

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This reply is private.

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I am experiencing the same and just posted about it in another thread – tri.be/support/forums/topic/calendar-doesnt-change-to-next-or-previous-month/

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I am having the exact same problem as wallyglenn and gosolutions. You can see the calendar at http://www.stmatthiaschool.org/calendar/. I can confirm that the problem is not related to WordPress 3.7 or 3.7.1 as I haven’t yet upgraded to either. I am running WordPress 3.6.1 and The Events Calendar and The Events Calendar PRO 3.1.

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Thank you for the update. I was worried that you thought it was fixed and it wasn’t for me. I didn’t know my bug was in the pile that had been postponed. As long as it’s fix is still in the works, I’m good! Thank you for the update.

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Hey Jonah that was exactly the info I needed! Thank you so much for your help!

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Thanks for the update! I look forward to the next release.

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Sorry for the multiple posts! Figured out pastebin (I hope!) – http://pastebin.com/gmLPt5Ep

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