Changelog: WooCommerce Extended Coupon Features

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= 3.3.4 =
* Release Date – 2023-11-05*
– (PRO) FEATURE: Limit discount to: Nth item onwards
– (PRO) FEATURE: Custom meta: include attribute_pa_* fields

= 3.3.3 =
*Release Data – 2023-03-11*
– Introduce filter wjecf_coupon_item_quantity to override matching item quantity
– HPOS compatibility
– FIX: Don’t let WooCommerce Subscriptions plugin remove autocoupons when calculating on a different cart

= 3.3.2 =
*Release Date – 2022-09-28*
– (PRO) FIX: Custom fields: also lookup field of parent in case of a variation

= 3.3.0 =
*Release Date – 2022-09-18*
– (PRO) FIX: On some systems auto update request was issued too often
– (PRO) FIX: zip package must contain the woocommerce-auto-added-coupons-pro/ subdirectory

= 3.2.9 =
*Release Date – 2022-01-16*
– FIX: Last update broke BOGO. (Thanks for informing us, Celian)

= 3.2.8 =
*Release Date – 2021-11-19*
* FIX: Remove autocoupon, better detection if it was removed manually
* FIX: (PRO) Free products: Better variation attributes support

= 3.2.7 =
*Release Date – 2021-02-13*
* FIX: User restrictions on backend orders

= 3.2.6 =
*Release Data – 2021-01-16*
* (PRO) FIX: Don’t display free product selection when there are no items to choose from
* FEATURE: ‘Table Rate Shipping’ by WooCommerce compatibility

= 3.2.5 =
*Release Date – 2020-11-30*
* FEATURE: Defer an applied coupon if it’s valid and ‘allow queueing’ is enabled
* FEATURE: Table rate shipping compatibility
* FEATURE: Support for WP-Multilang (requires patch in WP-Multilang)
* FIX: Typo making filter ‘wjecf_first_order_statuses_to_check’ useless

= 3.2.4 =
*Release Date – 2020-11-06*
* FEATURE: Flexible shipping instances compatibility

= 3.2.3 =
*Release Date – 2020-10-18*
* PERFORMANCE: (PRO) Auto update: applied caching to prevent many requests to the webserver

= 3.2.2 =
*Release Date – 2020-08-27*
* (PRO) First purchase only: Add ‘Pending payment’ to order statuses and apply filter wjecf_first_order_statuses_to_check to allow override of the statuses to check

= 3.2.1 =
*Release Date – 2020-08-18*
* (PRO) FEATURE: Filter ‘wjecf_free_products_to_apply_for_coupon’
* (PRO) FEATURE: Filter ‘wjecf_bogo_products_to_apply_for_coupon’

= 3.2.0 =
*Release Date – 2020-05-11*
* (PRO) FEATURE: Limit discount to n lowest priced items
* (PRO) FEATURE: Accept Envato license key
* FEATURE: Include/exclude shipping method, instance or zone (PRO)
* FIX: Coupon data as url: Urlencode the coupon code
* FIX: Minor fix in WJECF_Debug log_the_request()

= 3.1.4 =
*Release Date – 2020-03-28*
* (PRO) FEATURE: Restrict coupon by shipping zone

= 3.1.3 =
*Release Date – 2019-11-25*
* (PRO) FIX: Custom meta allow number or boolean (yes | no) values

= 3.1.2 =
*Release Date – 2019-09-18*
* (PRO) FEATURE: Filter wjecf_is_first_purchase

= 3.1.1 =
*Release Date – 2019-08-13*
* FIX: Auto coupon priority issue when cart content changes and another ‘individual use’-coupon takes precedence
* (PRO) FIX: Free products: Only set cart item quantity when it has changed (fixes issue with woo-paypalplus which clears session at quantity change)

= 3.1.0 =
*Release Date – 2019-05-21*
* TWEAK: Remove domainname from redirect url after using ?apply_coupon=
* (PRO) FIX: Free products: Don’t apply a product that is not purchasable
* (PRO) TWEAK: Call WC core add_to_cart instead of custom add_to_cart-function
* (PRO) TWEAK: Free product selection: Show variation attributes in product title

= 3.0.7 =
*Release Date – 2019-02-14*
* FIX: wjecf_dump missing meta values
* TWEAK: Changed coupon discount html overwrite of Free-product-coupons (PRO) and Auto-coupons
* (PRO) FEATURE: Custom coupon error message
* (PRO) FIX: Bug in ‘Limit discount to’ in combination with WC prior to 3.3.0

= 3.0.6 =
*Release Date – 2018-11-27*
* (PRO) FIX: Product custom field filter for internal meta (e.g. _sale_price)

= 3.0.5 =
*Release Date – 2018-11-10*
* FIX: Limit discount to: in combination with WC < 3.2
* FIX: Added quantity to ‘woocommerce_add_cart_item_data’-filter (Fixes crash WooCommerce Product Addons)
* FIX: ‘Auto coupons’-settings not visible in FREE version

= 3.0.4 =
*Release Date – 2018-10-12*
* FIX: Auto coupons: silently remove invalid coupons
* FIX: WPML compatibility issue with “CATEGORIES AND”
* (PRO) FIX: CSS of the column system (box-sizing: border-box)

= 3.0.2 =
*Release Date – 2018-09-03*
* FIX: Email restrictions compatibility with WooCommerce versions prior to 3.4
* FIX: Individual use conflict
* FIX: (FREE) Missing debug template

= 3.0.1 =
*Release Date – 2018-09-02*
* FIX: Fatal error in FREE version of the plugin
* FIX: Require PHP5.4

= 3.0.0 =
*Release Date – 2018-09-02*
* IMPORTANT: Requires WooCommerce 3.0+ WordPress 4.8+ and PHP 5.3+
* FEATURE: Filter ‘wjecf_apply_with_other_coupons’ to disallow certain coupon combinations
* FEATURE: Update order review on payment/billing email change on checkout page (see settings page)
* FIX: Auto-coupon check usase limits per user and respect email restriction wildcards
* FIX: Auto-coupon in combination with individual_use respects exception filters
* FIX: Coupon queueing: Case sensitive coupon code compare issue
* FIX/PERFORMANCE: Rewritten handling of auto-coupons. Performance improvement
* (PRO) ENHANCEMENT: Free products: Better handling and performance of cart ajax events
* (PRO) FIX: Duplicate notices when enqueuing a coupon
* INTERNAL: Removed code for backwards compatibility with WC versions prior to 3.0
* INTERNAL: Rewritten boot-process. Class auto-loading. Code cleanup.

= 2.6.4 =
*Release Date – 2018-08-16*
* FIX: Download JSON compatiblilty issue with WC 2.6.x
* FIX: WPML Translate coupon title

= 2.6.3 =
*Release Date – 2018-06-04*
* FIX: WJECF_Controller: Don’t use wp_get_current_user() for admin-orders
* FIX: WJECF_Controller: Don’t use WC()->cart->subtotal for admin-orders
* FIX: Possible division by zero when calculating multiplier value
* FEATURE: Filter ‘wjecf_coupon_multiplier_value’ to allow overriding the coupon’s multiplier value

= 2.6.2 =
*Release Date – 2018-04-02*
* FEATURE: Auto-coupon compatibility with the ‘WooCommerce Free Gift Coupons’-plugin
* FIX: CATEGORIES AND in combination with variable products
* FIX: Call to undefined function wc_add_notice()
* FIX: (PRO) First order purchase: Ignore cancelled/waiting for payment order statuses
* FIX: (PRO) Auto updater plugins_api return $def instead of false

= =
*Release Date – 2017-12-24*
* FIX: (PRO) Possible crash on null reference in filter woocommerce_coupon_get_discount_amount

= 2.6.1 =
*Release Date – 2017-12-22*
* German translation (Thanks to, Guido Hloch)
* FIX: Use WC_Coupon::get_description (for translation plugins)
* FIX: (PRO) ADMIN – Auto update: Allow multiple license activation
* FIX: (PRO) ADMIN – Auto update: Removed invalid warning ‘Invalid response block’

= =
*Release Date – 2017-12-04*
* FIX: Typo ‘impode’ (Thanks to Constantine for reporting)

= =
*Release Date – 2017-12-02*
* ADMIN: Fix: Changelog of plugin update screen

= 2.6.0 =
*Release Date – 2017-12-02*
* ADMIN: Compatibility with coupons added on the Order page from wp-admin (requires WC3.3+)
* ADMIN: Show ‘settings’ link on the plugin screen
* INTERNAL: Moved debugging functions to WJECF_Debug. Use template/log.php for output rendering of the log
* (PRO) FEATURE: Limit coupon to first time purchase only
* (PRO) ENHANCEMENT: Free products: Better grid layout of the free product selector
* (PRO) ENHANCEMENT: Free products: Auto submit of selection (works for inputs in container with class ‘wjecf-auto-submit’)
* (PRO) FIX: Free products: Respect “sold individually” when adding free products to the cart
* (PRO) FIX: Free products: WC2.6 compatibility (product->get_status())

= =
*Release Date – 2017-11-07*
* (PRO) FIX: ‘Limit discount to’ not applied correctly in combination with WC3.2.3

= 2.5.5 =
*Release Date – 2017-11-01*
* (PRO) FIX: Free products: Removed unnecessary <tr> in cart / checkout table if no free product selection applies
* (PRO) FIX: Free products: Preserve notices when updating cart after applying/removing a coupon
* (PRO) FIX: Free products: Compatibility with Subscriptions plugin (prevent trigger of calculate_totals when adding free product to the cart)
* (PRO) FIX: Free products: Compatibility with WPML plugin (translation of the free products)

= 2.5.4 =
* TWEAK: Get coupon description using WC_Coupon::get_description() to respect applicable filters (for example used by Polylang)
* (PRO) FEATURE: Allow customer to remove ‘Auto Coupons’ from the cart (see settings page)
* (PRO) FEATURE: Filter ‘wjecf_get_limit_to_options’ to allow adding custom ‘Limit to’-options
* (PRO) PERFORMANCE: Free products: Only load js and css when required
* (PRO) FIX: Free products: “update cart”-button not automatically enabled after selecting a free product (in combination with certain themes (e.g. Flatsome)
* (PRO) FIX: Free products: Prevent certain plugins from parsing attribute fields containing [products] as shortcode
* (PRO) FIX: Limit discount to cheapest item failed in WC3.0 in combination with a percent discount
* (PRO) FIX: Custom fields: Accept WC3.0 core fields (e.g. _price)
* (PRO) FIX: PHP Warnings in WJECF_Pro_Admin_Auto_Update

= 2.5.3 =
* (PRO) FIX: Free products: Free product selection always visible on checkout-page
* (PRO) FIX: Free products: JS error when using IE / Safari
* (PRO) FIX: Free products: Cart contents was not updated when applying a coupon
* (PRO) FIX: Free products: wjecf_free_product_amount_for_coupon not called for $max_quantity variable in the template

= =
* (PRO) FIX: Documentation url
* (PRO) FIX: Forgot to raise version number, causing a permanent ‘An update is available’

= =
* (PRO) FIX: Duplicate products at free product selection

= 2.5.2 =
* (PRO) FEATURE: Free product selection using checkboxes / numeric inputs
* (PRO) FIX: Free product selection fails if coupon code contains a space
* (PRO) FIX: CSS for column system used by the free product selection
* DOCUMENTATION: Added the API part to the documentation (work in progress)

= 2.5.1 =
* FIX: Draft settings not being saved
* FIX: PHP < 5.5 compatibility
* FIX: Abstract_WJECF_Plugin log function
* INTERNAL: Functions add_action_once / add_filter_once. To guarantee execution only once.
* INTERNAL: Updated the API example; also usable from CLI
* INTERNAL: Created Sanitizer for form data handling
* INTERNAL: Reorganised coupon meta handling ( Abstract_WJECF_Plugin::admin_coupon_meta_fields )

= 2.5.0 =
* (PRO) FEATURE: Auto update!
* (PRO) FEATURE: Checkbox ‘Allow applying coupon when invalid’
* (PRO) FEATURE: Custom message when applying a coupon which does not yet validate
* FEATURE: Settings page
* FEATURE REMOVED: Experimental feature ‘Allow when minimum spend not reached’ (Use ‘Allow applying coupon when invalid’ instead)
* COSMETIC: Products tab is now ‘Free Products’ tab. Moved other items to the ‘Usage restriction’-tab
* FIX: Issue with ‘Allow discount on cart with excluded items’
* FIX: Notice if a free product without weight is added/removed to/from the cart
* FIX: Deprecation notice in WJECF_AutoCoupon::sort_auto_coupons
* INTERNAL: Introduced ‘allow_overwrite_coupon_values’

= 2.4.3 =
* FIX: Customer selector WooCommerce 3.0.0 compatibility

= =
* FIX: WooCommerce < 2.7 compatibility

= 2.4.2 =
* FIX: Invalid calculation of subtotal/quantity of matching product since WC 3.0.0
* FIX: Missing “PRODUCT AND/OR” selector on Admin since WC 3.0.0 (Javascript)
* FIX: WooCommerce version detection if woocommerce is not installed in /wp-content/plugins/woocommerce directory

= 2.4.1 =
* (PRO) FIX: Product selector compatability with select2 v4 (WooCommerce 3.0)

= 2.4.0 =
* FIX: WooCommerce 3.0.0 Compatibility
* INTERNAL: Also load textdomain from WP_LANG_DIR/woocommerce-jos-autocoupon/

= =
* FIX: Limit usage to cheapest discounting the wrong product when the quantity of cheapest product was greater than 1.

= =
* FIX: Combining add-to-cart and apply_coupon in a single querystring

= =
* FIX: Invalid usage of get_plugin_data

= =
* FIX: Backwards compatibility with WooCommerce < 2.5.0
* INTERNAL: Introducing WJECF_WC() to maintain backwards compatibility

= =
* (PRO) FIX: Bug in ‘Limit discount to’

= 2.3.7 =
* PERFORMANCE: Admin could hang in some occasions on a jQuery-selector
* FIX: Suppresed warnings were displayed by the Query Monitor plugin if pro files are missing
* FIX: WPML Compatibility
* FIX: Invalid textdomain in woocommerce_coupon_error (Thanks, 7o599)
* (PRO) FIX: ‘Limit discount to’ skipped non-matching products on cart % discount
* (PRO) FEATURE: Limit discount to every nth (matching) item in the cart

= 2.3.6 =
* FIX: Compatibility with WooCommerce < 2.3.0 for coupon by url
* COSMETIC: On the admin page, moved AND/OR selector near the product/categories input
* (PRO) FEATURE: Filter matching products by custom field.

= 2.3.5 =
* (PRO) FIX: Workaround for missing WooCommerce 2.6.3 constant WC_ROUNDING_PRECISION
* (PRO) FIX: Refresh the cart when a coupon is applied/removed by AJAX (to add/remove free products)

= 2.3.4 =
* FIX: WooCommerce 2.6 and UPS / USPS Shipping method compatibility ( those plugins use : as separator )
* FIX: Coupon by url (hook on wp_loaded instead of init)
* FIX: Admin pages invalid parsing of Chosen inputboxes WooCommerce < 2.3.0
* FIX: Free product on WooCommerce < 2.3.0
* INTERNAL: Rewritten overwrite_success_message methods
* (PRO) Ajax ‘Apply coupon’ support for free product selection on cart and checkout page. (OVERRIDEABLE TEMPLATE FILES UPDATED!)
* (PRO) FEATURE: Remember coupons that are not valid when applying (on the cart page) and apply them automatically when they validate

= 2.3.3 =
* FIX: limit_usage_to_x_items: Removed call to get_discount_amount from coupon_has_a_value; it is redundant and caused limit_usage_to_x_items to change
* (PRO) FEATURE: Filters wjecf_free_product_amount_for_coupon, wjecf_bogo_product_amount_for_coupon and wjecf_set_free_product_amount_in_cart
* (PRO) FEATURE: Keep track of by-url-coupons (?apply_coupon=) and apply when they validate
* (PRO) FIX: Experimental feature ‘Allow discount on cart with excluded items’ didn’t work since 2.2.3
* (PRO) FIX: Invalid free product quantity applied when using both BOGO and FREE products in a single coupon.
* (PRO) FIX: limit_usage_to_x_items: Possible wrong discount on combination of limit_usage_to_x_items and _wjecf_apply_discount_to

= 2.3.2 =
* FEATURE: Display custom error message when coupon is invalidated by this plugin
* FIX: apply_coupon redirected to wrong url when home_url contained a subdirectory
* FIX: Remove add-to-cart when redirecting for apply_coupon
* FIX: Auto Coupon Backwards compatability for WooCommerce versions prior to 2.3.0 that don’t have hook woocommerce_after_calculate_totals
* TRANSLATION: Persian. Thanks to Ehsan Shahnazi.

= =
* TRANSLATION: Brazilian Portuguese. Thanks to Francisco.

= 2.3.1 =
* FIX: WPML Compatibility for AND Products / AND Categories
* FIX: Redirect to page without ?apply_coupon= after applying coupon by url
* FIX: Auto coupon meta_query issue (thanks to hwillson)
* FIX: Compatibility with WooCommerce prior to 2.2.9 (WC_Cart::get_cart_item)
* (PRO) FIX: Free products: Add variant attributes to cart items for variable products
* (PRO) FEATURE: Apply discount only to the cheapest product

= 2.3.0 =
* (PRO) FEATURE: Allow customer to choose a free product
* (PRO) FEATURE: Setting the priority of auto coupons (Useful for Individual use coupons)
* (PRO) FEATURE: Display extra columns on the Coupon Admin page (auto coupon, individual use, priority, free products)
* (PRO) TWEAK: Free products: Display ‘Free!’ as subtotal for free products, (adaptable with filter ‘wjecf_free_cart_item_subtotal’ )
* (PRO) FIX: Free products: Plugin wouldn’t always detect the free products in cart and kept appending free products
* (PRO) Introduction of the API for developers, see wjecf-pro-api.php
* FEATURE: Filter to only display Auto Coupons on the Coupon Admin page
* FIX: Compatibilty PHP 5.4
* FIX: Rewritten and simplified Autocoupon removal/addition routine making it more robust
* FIX: Multiplier value calculation (as for now only used for Free Products)
* FIX: Coupon must never be valid for free products (_wjecf_free_product_coupon set in cart_item)
* INTERNAL: Refactoring of all classes
* INTERNAL: New log for debugging

= =
* FIX: When checkbox ‘Individual use’ was ticked, Autocoupons would be removed/added multiple times

= 2.2.5 =
* (PRO) FEATURE: BOGO On all matching products
* FIX: Changed WooCommerce detection method for better Multi Site support
* (PRO) FIX: Free products: Fixed an inconsistency that could cause a loop on removal/adding of free variant products
* (PRO) TWEAK: Free products: Hooking before_calculate_totals for most cases but also on woocommerce_applied_coupon, which is required when one coupon is replaced by another
* INTERNAL: Check if classes already exist before creating them

= 2.2.4 =
* FEATURE: Online documentation added
* FEATURE: Use AND-operator for the selected categories (default is OR)
* FIX: Backwards compatibility with WooCommerce 2.3.7 (WC_Cart::is_empty)
* FIX: Backwards compatibility with WooCommerce < 2.3.0 (WC_Coupon::is_type, Chosen in stead of Select2)

= 2.2.3 =
* (PRO) FEATURE: Allow discount on cart with excluded items
* (PRO) FEATURE: Free products!
* FEATURE: Allow coupon in cart even if minimum spend not reached
* FEATURE: New coupon feature: Minimum / maximum price subtotal of matching products in the cart
* COSMETIC: Admin Extended coupon features in multiple tabs
* FIX: Create session cookie if no session was initialized when applying coupon by url
* TWEAK: Auto coupon: Use woocommerce_after_calculate_totals hook for update_matched_autocoupons
* API: New function: $wjecf_extended_coupon_features->get_quantity_of_matching_products( $coupon )
* API: New function: $wjecf_extended_coupon_features->get_subtotal_of_matching_products( $coupon )

= 2.2.1 =
* FIX: Prevent mulitple apply_coupon calls (for example through ajax)
* FIX: Don’t redirect to cart when using WooCommerce’s ?add-to-cart=xxx in combination with ?apply_coupon=xxx as this would prevent the application of the coupon.

= 2.2.0 =
* FIX: Lowered execution priority for apply_coupon by url for combinations with add-to-cart.
* FEATURE: New coupon feature: Excluded customer role restriction
* FEATURE: New coupon feature: Customer / customer role restriction
* FEATURE: New coupon feature: Minimum / maximum quantity of matching products in the cart
* FEATURE: New coupon feature: Allow auto coupons to be applied silently (without displaying a message)
* TWEAK: Moved all settings to the ‘Extended features’-tab on the admin page.
* FIX: 2.0.0 broke compatibility with PHP versions older than 5.3
* FIX: Changed method to fetch email addresses for auto coupon with email address restriction
* FILTER: Filter wjecf_coupon_has_a_value (An auto coupon will not be applied if this returns false)
* FILTER: Filter wjecf_coupon_can_be_applied (An auto coupon will not be applied if this returns false)
* INTERNAL: db_version tracking for automatic updates
* INTERNAL: Consistent use of wjecf prefix.
* INTERNAL: Renamed meta_key woocommerce-jos-autocoupon to _wjecf_is_auto_coupon

= 2.0.0 =
* RENAME: Renamed plugin from “WooCommerce auto added coupons” to “WooCommerce Extended Coupon Features”
* FEATURE: Restrict coupons by payment method
* FEATURE: Restrict coupons by shipping method
* FEATURE: Use AND-operator for the selected products (default is OR)
* FIX: Validate email restrictions for auto coupons
* Norwegian translation added (Thanks to Anders Zorensen)

= 1.1.5 =
* FIX: Cart total discount amount showing wrong discount value in newer WooCommerce versions (tax)
* Performance: get_all_auto_coupons select only where meta woocommerce_jos_autocoupon = yes (Thanks to ircary)

= 1.1.4 =
* Translation support through .mo / .po files
* Included translations: Dutch, German, Spanish (Thanks to stephan.sperling for the german translation)

= =
* FIX: Apply auto coupon if discount is 0.00 and free shipping is ticked

= 1.1.3 =
* Don’t apply coupon if the discount is 0.00
* Allow applying multiple coupons via an url using *?apply_coupon=coupon_code1,coupon_code2

= 1.1.2 =
* Minor change to make the plugin compatible with WooCommerce 2.3.1
* Loop through coupons in ascending order

= 1.1.1 =
* Tested with WordPress 4.0

= 1.1.0 =
* Allow applying coupon via an url using *?apply_coupon=coupon_code*

= 1.0.1 =
* Don’t add the coupon if *Individual use only* is checked and another coupon is already applied.

= 1.0 =
* First version ever!