Title: Coupon codes Last modified: January 21, 2018 --- # Coupon codes * Resolved [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/) * I’m using the coupon addon on marketpress, but the screen thing will start turning and freezes. * How can i fix this? Viewing 11 replies - 1 through 11 (of 11 total) * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9887278) * I have another question. If i’m using the assessment tab in coursepress, and i’m grading with feedback, i can’t submit the grading with feedback. I can only grade without feedback. * I know this isn’t the coursepress plugin page:) * Plugin Support [Imran – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support9/) * (@wpmudev-support9) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9888546) * Hello [@dennisemaar](https://wordpress.org/support/users/dennisemaar/) * I’ve tested Coupon add-on from y end and could not reproduce an issue. Please share here URL link to your site; let us know what PHP version your site is running. * Please check if a coupon can be added when all other plugins deactivated, except MarketPress. If all is well, start activating one plugin at the time, while testing if a coupon can be added, till you find a plugin that can cause a conflict. * > If i’m using the assessment tab in coursepress, and i’m grading with feedback, > i can’t submit the grading with feedback. I can only grade without feedback. * I could not also reproduce the issue with CoursePress plugin. Please follow the above steps and check if the grade can be submitted with all other plugins deactivated. * Let us know how it went! * Cheers, Nastia * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9888566) * Thanks for the fast response:) * Website: [http://www.dennisemaar.nl](http://www.dennisemaar.nl) PHP: 7.0 * You can test the coupon at: [http://dennisemaar.nl/store/advies-over-te-o…ikkelen-gebieden/](http://dennisemaar.nl/store/advies-over-te-o…ikkelen-gebieden/)- > Buy now -> with coupon code “ZEVEN” * If you enter the wrong code, it will say that it’s wrong. * If I deactivate all plugins, the coupon is still not working. * For Coursepress, I also tried deactivating all plugins, this is not working. * I can’t click the “Save Feedback as Draft” button and I can modify the field of the first feedback field I opened, but if I open another feedback field, I can’t input text in this one. * Thanks in advance. * Plugin Support [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * (@wpmudev-support8) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9889020) * Hey [@dennisemaar](https://wordpress.org/support/users/dennisemaar/), * Hope you’re well. * I tested MarketPress and CoursePress too and couldn’t replicate the problem. For this reason, maybe our plugins are just conflicting with your theme. Can you try with default WordPress theme? * Also, when I go to [http://dennisemaar.nl/store/advies-over-te-o…ikkelen-gebieden/](http://dennisemaar.nl/store/advies-over-te-o…ikkelen-gebieden/) this page I am getting a 404 error. Can you check is your website accessible without logging in? * About CoursePress if the problem continues and not related with MarketPress integration can you open a new thread on its support forum? If it’s related we can stick here. * Cheers, Oguz * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9889385) * I’m sorry, this is the correct link: * [http://dennisemaar.nl/store/advies-over-te-ontwikkelen-gebieden/](http://dennisemaar.nl/store/advies-over-te-ontwikkelen-gebieden/) * If i am using wordpress theme twenty seventeen, it will not work either. - This reply was modified 8 years, 3 months ago by [dennisemaar](https://wordpress.org/support/users/dennisemaar/). * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9889797) * I am moving my domain en hosting to a different company, so the website will be offline till it is moved. * I hope this will solve the issue, if it is, I will notice it here, if it is not solving it, I will also notice it here:) * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9890694) * It is still not working at my new website. * Al though my new website is running significantly smoother. * The feedback function in coursepress is working now:) - This reply was modified 8 years, 3 months ago by [dennisemaar](https://wordpress.org/support/users/dennisemaar/). * Plugin Support [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * (@wpmudev-support8) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9892937) * Hey [@dennisemaar](https://wordpress.org/support/users/dennisemaar/), * Hope you’re well. * Thank you for working URL. I checked the coupon section and yes you’re right it stuck when you enter the correct coupon. And I can see there is a 500 error for ajax request from chrome developer console. * To understand what cause this problem we need to check WordPress debug logging and PHP debug logging. First of all can you edit wp-config.php file and put these codes; * ``` /* Debug Settings */ define('WP_DEBUG', true); define('WP_DEBUG_LOG', true); define('WP_DEBUG_DISPLAY', false); /* End of Debug Settings */ ``` * Then try entering correct coupon one more time(try to replicate issue again). Then check wp-content folder. Is there any debug.log file? If yes please share the content with us. If no then check the server PHP logs, is there any related logs? * Cheers, Oguz * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9893077) * debug.log file: * [23-Jan-2018 11:45:01 UTC] PHP Fatal error: Uncaught Error: Call to a member function format() on boolean in /home/dennisem/public_html/wp-content/plugins/ wordpress-ecommerce/includes/addons/mp-coupons/class-mp-coupon.php:468 Stack trace: #0 /home/dennisem/public_html/wp-content/plugins/wordpress-ecommerce/includes/ addons/mp-coupons/class-mp-coupons-addon.php(951): MP_Coupon->is_valid() #1 / home/dennisem/public_html/wp-includes/class-wp-hook.php(286): MP_Coupons_Addon- >ajax_apply_coupon(”) #2 /home/dennisem/public_html/wp-includes/class-wp-hook. php(310): WP_Hook->apply_filters(”, Array) #3 /home/dennisem/public_html/wp-includes/ plugin.php(453): WP_Hook->do_action(Array) #4 /home/dennisem/public_html/wp-admin/ admin-ajax.php(97): do_action(‘wp_ajax_mp_coup…’) #5 {main} thrown in /home/dennisem/ public_html/wp-content/plugins/wordpress-ecommerce/includes/addons/mp-coupons/ class-mp-coupon.php on line 468 * Plugin Support [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * (@wpmudev-support8) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9893293) * Hey [@dennisemaar](https://wordpress.org/support/users/dennisemaar/), * Hope you’re well. * Thank you for the results. Can you replace is_valid function (approximately 451nd line) in {wordpress_folder}/wp-content/plugins/marketpress/includes/addons/mp- coupons/class-mp-coupon.php file via FTP. Final function should be look like; * ``` public function is_valid( $action = '' ) { $now = time(); $is_valid = true; //Moved to variable as it will be used in many instances $cart_products = $this->get_products( true ) ; $coupon_start = get_post_meta( $this->ID, 'start_date', true ); $coupon_end = get_post_meta( $this->ID, 'end_date', true ); if ( ! $this->exists() ) { $is_valid = false; } elseif ( $this->remaining_uses( false, true ) == 0 ) { $is_valid = false; } elseif ( $now < strtotime( $coupon_start ) ) { $is_valid = false; } elseif ( $this->get_meta( 'has_end_date' ) && ( $now > strtotime( $coupon_end ) ) ) { $is_valid = false; } elseif ( array() == $cart_products) { $is_valid = false; }elseif( ! $this->valid_for_number_of_products( $cart_products ) ){ $is_valid = false; }elseif( ! $this->valid_for_login() ){ $is_valid = false; }else { if( $action != 'remove_item' ) { if ( $this->get_meta( 'applies_to' ) == 'user' ) { $user = $this->get_meta( 'user' ); if ( !in_array( get_current_user_id(), $user ) ) { $is_valid = false; } } if( ! $this->is_valid_for_combination() ) { $is_valid = false; } } } /** * Filter is coupon is valid * * @since 3.0 * * param bool Is valid? * param MP_Coupon The current coupon object. */ return apply_filters( 'mp_coupon/is_valid', $is_valid, $this ); } ``` * I hope it helps! * Cheers, Oguz * Thread Starter [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * (@dennisemaar) * [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9893519) * Thanks it’s working:):) Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘Coupon codes’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/wordpress-ecommerce_f7d96b.svg) * [MarketPress - WordPress eCommerce](https://wordpress.org/plugins/wordpress-ecommerce/) * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-ecommerce/#faq) * [Support Threads](https://wordpress.org/support/plugin/wordpress-ecommerce/) * [Active Topics](https://wordpress.org/support/plugin/wordpress-ecommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-ecommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wordpress-ecommerce/reviews/) * 11 replies * 3 participants * Last reply from: [dennisemaar](https://wordpress.org/support/users/dennisemaar/) * Last activity: [8 years, 3 months ago](https://wordpress.org/support/topic/coupon-codes-11/#post-9893519) * Status: resolved