Groups

• Added the Groups Members block: A block whose content is only visible for members of selected groups.
• Added the Groups Non-Members block: a block whose content is hidden for members of chosen groups.
• Removed use of parenthesis with require_once and include_once.

For the full changelog see changelog.txt.

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• Tested for WordPress 5.1.
• Added an option to filter by posts restricted by any group.
• Added an option to filter by posts restricted by no group.
• Removed an option to filter by only unrestricted posts which didn't work.
• Improved groups column header fitting on post admin screens.
• Fixed a notice when a user has no groups assigned.

For the full changelog see the changelog.txt.

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• Tested for WordPress 5.0.

• Improved performance when filtering the users list by groups to avoid issues with large user bases.
• Tested with the latest WordPress 4.9.
• Updated the minimum required WordPress version to 4.6.
• Fixed a missing Javascript resource when selecting an image in the customizer.

• Fixed several points where warnings related to the use of count() and the Countable interface would occur due to changes in PHP 7.2.
• Tested with WordPress 4.9.
• Added the groups_post_access_posts_where_query_get_post_types filter to allow additional processing to cover for cases like where wc_query is set.
• Fixed a notice related to the use of an undefined variable in the Groups_Post_Access class.
• Added the logo and the option to get reminded later to the Groups notice.
• Added filters on get_previous_post_where and get_next_post_where to restrict access on adjacent posts.

• Tested with WordPress 4.8.
• Fixed a REST API access restriction issue, added the filter rest_prepare_{$post_type} to grant or deny access to individual posts.
• Updated the translation template.
• German translation updated.
• Updated the appearance of the network settings.
• Updated the table creation process dropping use of dbDelta() due to its restrictions (can't handle IF NOT EXISTS).
• Fixed an issue related to cache and switching to a blog when neither wp_cache_switch_to_blog() nor wp_cache_reset() are implemented, like in WP Engine's object-cache.php which does provide wp_cache_flush().
• Guarded against concurrent execution of multiple instances of plugin activation and deactivation processes.
• Fixed an attempt to refresh capabilities when no previous version was installed.

• Important change in this version: If access restrictions for post type are disabled, related entries will not be protected anymore.
• Improved the activation performance by simplifying the creation of user-group entries. The 'groups_created_user_group' action is not invoked on incorporating existing users and a single query is used to create entries for all users. Based on suggestions from @haroldkyle in https://github.com/itthinx/groups/pull/14
• Added a warning message displayed in the plugins list when Groups is going to delete its data on deactivation.
• Added the ability to obtain user_ids from Groups_Group.
• Improved the performance when obtaining users from Groups_Group. Based on suggestions from @tricki in https://github.com/itthinx/groups/pull/50
• Adjusted the signature of the Groups_User constructor to use null as default for its $user_id argument.
• Added methods in Groups_Post_Access to get and set which post types Groups should handle.
• Changed the default assumption to handle only post types that are 'public' by default. Others are not handled by default.
• Updated the Options to show all available post types.
• Improved performance by limiting our posts_where, wp_count_posts and other filters in Groups_Post_Access to handled post types only.
• Fixed a potential fatal error when the user_register hook is fired and get_current_screen() is not defined.
• Updated translations.
• Fixed a notice when no post types are selected in Groups > Options.
• Added comment filters to hide comments on protected entries.
• Improved the performance of the post filter.
• Added several performance improvements related to data retrieval and caching on various objects and data sets.
• Added a notice handler class.

• Fixed a warning that came up when the post type in a query is provided as an array indicating multiple post types.
• Users who can administer Groups (with the groups_admin_groups capability) now also see posts restricted to groups they do not belong to, in line with the ability to restrict access with groups they do not belong to for consistency's sake.
• Added a filter on woocommerce_product_is_visible so protected up-sell and cross-sell products are effectively hidden.

• Changed the default value for legacy mode used on installation to false. Fixes database errors due to missing capability table at that stage.
• Modified the method signature of Groups_Post_Access::posts_where() and Groups_Post_Access_Legacy::posts_where() to avoid PHP 7.1 warnings (reference expected, value given).
• Removed the administrator override option on the back end. Administrator override now requires the constant GROUPS_ADMINISTRATOR_OVERRIDE to be defined as true.
• Updated the French translation.
• Adjusted the load order for translations.

• Changed the requirements to allow to restrict by group.
• Fixed legacy access restrictions help replaced new groups help.

• Fixed a "Fatal error: Call to a member function get_role_caps() on a non-object" which could occur in circumstances with invalid user IDs.

• Added the option to dismiss the Welcome screen.
• Updated German and Spanish translations.

• Fixed an issue with conflicting cache entries with legacy mode enabled.
• Fixed access restriction capabilities were reset when reenabling legacy mode.

• Changed the access restriction model to group-based access restrictions.
• Provides an optional legacy mode that supports the previous capability-based access restrictions.
• Optimized the approach to restrict read access on posts using groups rather than access restriction capabilities.
• Added the groups_restrict_access capability which grants users to impose access restrictions.
• Fixed the order_by and order parameters in Groups_Group::get_groups()
• Added the $create parameter in Groups_UIE::render_select()
• Removed the "Chosen" library.
• Improved and reduced the footprint on the Users admin screen, now allowing to filter by one or multiple groups.
• Added a welcome screen.
• Added the option to assign groups to new users directly when creating them from the Dashboard.
• Changed the language domain to string literal instead of constant.
• Improvements on internal coding standards (single/double quotes, EOF, formatting).

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• Fixed an issue where the wrong post count would be produced for statuses that do not represent a valid WooCommerce order status.
• Added support for post counts with WooCommerce Subscriptions.

• Added a filter on wp_count_posts.

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• Fixed an issue where resource paths were not correct with customized WP_CONTENT_DIR, WP_CONTENT_URL, WP_PLUGIN_DIR and WP_PLUGIN_URL.

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• Updated the Spanish translation.

• Updated the translation template.
• Updated the German translation.
• Moved the complete changelog out to changelog.txt.

• Fixed the order_by and order parameters in Groups_Group::get_groups()

• Added the Brazilian Portuguese translation.

• Added the groups_access_restrictions_capability_selected filter.

• Tested for WordPress 4.5.

• Fixed the French translation which introduced incorrect markup breaking the help button.
• Added the groups_admin_groups_add_form_after_fields filter.
• Added the groups_admin_groups_add_submit_success action.
• Added the groups_admin_groups_edit_form_after_fields filter.
• Added the groups_admin_groups_edit_submit_success action.
• Fixed some code formatting (tabs).

• Adjusted the Groups and Capabilities screens' UI elements.
• Reduced the filters section footprint on the Groups screen.
• Reduced the filters section footprint on the Capabilities screen.
• Fixed use of deprecated constructor in the Groups_Pagination class.
• Fixed sorting by description and the sorting indicator on the Groups screen.
• Fixed sorting by description and the sorting indicator on the Capabilities screen.
• Fixed some code formatting issues including superfluous whitespace.
• Improved the footer rendering and footprint.

• WordPress 4.4 compatible.
• Updated selectize.js to 0.12.1 (standalone).
• Fixed a representation issue for the lower group selector on the Users screen.
• Updated the page headings to use h1 instead of h2.
• Added the is_member method to Groups_User.
• Updated the footer.

• Added own cache encapsulation to guard against flaws in outdated cache implementations.
• Added new user group property to obtain hierarchical groups.
• Improved user properties to use own caching.
• Fixed media field filters wrongly declared as actions.
• Fixed the version comparison operation.

• Fixed potential XSS vulnerabilities related to the unescaped use of the $_SERVER['REQUEST_URI'] in some forms.

• WordPress 4.3.1 compatibility tested.
• Add-ons section added.

• WordPress 4.3 compatibility tested.
• Updated the menu position constant (string instead of number).
• Removed translation of the Groups menu title (related to a consistent appearance and would also be affected by a a core bug).
• Fixed padding for the header checkbox on the Groups and Capabilities screens.

• Fixes an issue with map_meta_cap filtering where no valid post ID is provided.

• Added the French translation.
• Added the [groups_login] shortcode.
• Added the [groups_logout] shortcode.
• Updated the German translation.
• Updated the Spanish translation.
• Added the groups_deleted_capability_capability action.
• Fixed an issue with deleted capabilities restricting access to posts.
• Fixed cache entries for capabilities.

• Added the German translation.
• Updated the Spanish translation.
• Updated the Groups menu position.
• Removed empty strings from translation.

• Added administrative links to the plugin entry.

• Added the Dutch translation.

• Added a comparison method for groups and capabilities.
• Updated the documentation link in the help content.

• Improved internal definitions to use API function instead of WP_CONTENT_DIR and WP_CONTENT_URL constants.
• Now showing inherited capabilities for groups.
• Added ABSPATH check to plugin main file.
• Improved the UI rendering cancel links as buttons.
• Improved the UI adding some space on capability selector box.
• Fixed a pagination issue when the page number is indicated on the Groups or Capabilities screen.

• Please MAKE A BACKUP of your site and database PRIOR to updating.
• WordPress 4.2 compatible.
• Adopted a more flexible index size on the capability row of the capability table.

• Please MAKE A BACKUP of your site and database PRIOR to updating.
• WordPress 4.2 compatible.
• Reduced the index size on the capability row of the capability table.

• Due to changes in versions 1.4.14 and 1.4.15, it's important to MAKE A BACKUP of the site & database, test the site, extensions & theme PRIOR to updating.
• Fixes a cache incompatibility with caching mechanisms that do not implement wp_cache_get()'s function signature fully. This addresses cases specifically where the fourth parameter $found is not initialized as expected upon return. The performance improvements included in this release are lessened with caching plugins that fail to implement the return value disambiguation via $found.

• Now not using Groups' the_posts filter by default as results are already filtered by Groups' posts_where filter.
• Added the groups_filter_the_posts filter which can be used to 'reactivate' Groups' the_posts filter where needed.
• Added caching for capabilities read by capability name.
• Added caching for groups read by name.
• Added caching for results obtained in Groups_Post_Access::user_can_read_post(...).
• Added the groups_post_access_user_can_read_post filter.
• Admin override is disabled by default (existing installs need to disable manually if options were saved).
• Swedish translation by Andras Lundgren added.

• WordPress 4.1 compatible.

• Fixes missing selectize Javascript for the media uploader's attachment popup.

• WordPress 4.0 compatible.

• Improved: code documentation
• WordPress 3.9 compatibility checked
• Changed some filter usage with prepare() for 3.9 nags.
• Fixed unmatched tags in the tree view.

• Fixed: Tree view doesn't appear/disappear in menu directly after setting the option.
• Improved: Feedback when options have been saved.
• Improved: UI size adjustments.
• Added: New API methods Groups_Group::get_group_ids() and Groups_Group::get_groups().
• Improved: groups and capabilities table cell titles and ellipsis added.

• Fixed: A closing tag in the group list on the user profile.
• Fixed: Help wording.
• Improved: Capabilities in the Access Restrictions column are sorted for more consistent display.
• Improved: Reduced ID, Edit and Remove column widths on Groups and Capabilities screens.
• Fixed: Stripping added slashes from groups and capabilities displayed.
• Added: Feedback when groups and capabilities are created, updated or removed in admin.
• Added: group and exclude_group attributes for the [groups_user_groups] shortcode.
• Improved: Replaced remnant CR LF line-endings in code.
• Fixed: Handling updates to a capability when the capability field is empty.
• Fixed: Handling updates to a group when the name field is empty.
• Fixed: Don't allow to use the name of another existing group when updating a group.
• Fixed: Don't allow to use the name of another existing capability when updating one.

• Security improvement: plugin files accessed directly exit

• Fixed: Don't interfere with output when there is no post (the_content and get_the_excerpt filters)

• Security fix : Certain capabilities could be granted to users instead of being denied with a change introduced in version 1.4.5. Roles with negated capabilities would effectively grant these capabilities to the user.

• Using a WordPress API function get_post_type_capabilities() instead of semi-hardcoded capabilities for access restriction checks (affects CPTs).
• Changed: Taking role-based capabilities into account when creating cache entries for the Groups_User object. The new groups_user_add_role_capabilities filter allows to modify this new behaviour by returning false.
• Added: groups_user_add_role_capabilities filter.

• WordPress 3.8 compatibility checked.
• Fixed: Access restriction options per post type when none is checked.

• Added: Bulk editing (add/remove) of post access restriction capabilities.
• Fixed: A typo in the Access Restriction column's tooltip text.
• Fixed: Validation of access restriction capabilities when saved on options admin screen.
• Changed: Users must now have the groups_access capability to be able to use the access restriction meta box on posts.

• Added: Access restriction capabilities shown for enabled post types on overview screens.
• WordPress 3.7.1 compatibility checked.
• Fixed: Error caused by typo when obtaining group_ids_deep property for a Groups_User.
• Changed: Replaced some __get calls by properties.
• Added: Filter by access restriction capabilities for enabled post types on overview screens.

• Added: Better group-assignment on the Users admin screen, allows to assign/remove multiple users to/from multiple groups along with a better UI.
• Changed: Groups requires at least WordPress 3.5 now, although this only affects the group-action functionality on the Users admin screen, the restrict_manage_users action which is now used to render the UI elements needed, was introduced with WordPress 3.5.
• Added: Extensions box in Options.
• Improved: Groups section in user profile with added description.

• Added: Groups > Groups > Add / Edit group screens, allow to assign/modify the capabilities assigned to the group.
• Added: Groups > Groups screen, allow to assign/remove multiple capabilities to multiple groups.
• Added: Groups > Groups screen, allow to delete multiple groups as a bulk action.
• Added: Groups > Capabilities screen, allow to delete multiple capabilities as a bulk action.
• Improved: Groups > Options screen, using searchable select instead of checkboxes to enable capabilities for access restriction.
• Improved: In user profiles, using a searchable select to modify group assignments.
• Improved: Reduced the footer text in groups admin sections.
• Improved: Admin CSS to make better use of screen real-estate and more coherent appearance with the new UI additions.

• Added the option to quick-create group and capability within the access restriction meta-box.
• Added the option to show groups granting access per capability in the access restriction meta-box.
• Added the quick-create field to the access restrictions meta-box which allows to create group & capability on the fly.
• Added Selectize.js and using it in the access restrictions meta-box instead of checkboxes.
• Improved the Groups > Options screen using a Selectize-based selection of capabilities that are enabled for access restriction.

• Fixed duplicate postmeta creaed when saving access restriction capabilities for a post.
• [groups_can] and [groups_can_not] now accept multiple capabilities separated by comma.
• WordPress 3.6.1 compatibility checked.

• WordPress 3.6 compatibility checked.
• Fixed table appearance for capabilities and groups admin sections when there are no results.

• Fix: Access restriction capabilities must be disjunctive.
• Added: List of groups can be shown in user profiles on the back end and group assignments can be edited by group admins.
• Improvement: Groups shown for users on the Users screen are sorted by name.

• Fix: Under certain conditions with caching involved, capabilities were not correctly retrieved. Thanks to Jason Kadlec who reported the issue.
• Improvement: Related to the above fix, improved the way how *_deep properties are retrieved on cache misses, resulting in slightly better performance.
• Fix: Added a missing text domain.
• Improvement: Added help icon when user has no access restriction capabilities.
• Fix: Redirecting after group action in users screen to end up with a clean admin URL.

• Fix: added filter hooked on posts_where motivated by pagination issues - the posts must be filtered before the totals are calculated in WP_Query::get_posts().
• Improvement: modified the signature of the the_posts filter method in Groups_Post_Access to receive the $query by reference
• Improvement: a substantial improvement on overall performance is achieved by caching user capabilities and groups
• Fix: access restriction boxes showing capabilities that the user should not be allowed to set to restrict posts
• Fix: resolve user-capability when a capability is deleted

• Fix: using substitute wp_cache_switch_to_blog instead of deprecated function wp_cache_reset when available (from 3.5.0)
• Fix: don't show access restriction meta box on attachments, the option is added with the attachment fields (3.5 uses common post edit screen but save_post isn't triggered on attachments)
• Improvement: limiting choice of access restrictions to those the current user has
• Fix: restrict access to edit or delete posts based on the post's access restrictions
• Feature: added option to refresh capabilities
• Fix: replaced use of get_user_by() (memory leaks on large user sets) with query & added batch limit when adding users to Registered group on activation

• Fix: missing argument for meta box when saving a post
• Fix: Groups conflicting with other plugins adding columns to the Users screen (in the manage_users_custom_column filter) thanks to Erwin who spotted this :)

• Replaced call to get_users() with query to avoid memory errors on activation with large users bases.
• Provided a default value for a method in Groups_Access_Meta_Boxes to avoid issues with other plugins or themes.

• Fixed out of memory issues with large user bases on Users > All Users page. Thanks to Jason Glaspey who spotted the issue :)

• WP 3.5 cosmetics

• WP 3.5 compatibility http://core.trac.wordpress.org/ticket/22262

• Fixed capabilities cannot be added or removed from groups in localized installations

• Added users property to Groups_Group
• Moved tests out of core folder
• Fixed missing $wpdb in Groups_Group's getter
• Added group filters on users admin section

• Added feature that allows to show access restrictions depending on post type
• Added support for access restrictions on Media
• Fixed issue, removed access restrictions offered on Links

• Added Spanish translation

• Minor improvements on Options screen
• Added show="users" option to [groups_group_info] shortcode which lists user logins for users in a group - rather experimental as it doesn't offer any sorting, pagination, linking or other options

• New shortcode [groups_join group="..."] lets a user join the given group
• New shortcode [groups_leave group="..."] lets a user leave the given group

• Revised styles
• WordPress 3.4 compatibility
• Dropping support for WordPress < 3.3
• Help uncluttered.

• Reduced files loaded on non-admin pages.
• Added Lithuanian translation.
• Changed help to use tabs.

• Access control is no longer restricted to the groups_read_post capability: now any capability can be used to limit access to posts so that different groups can be granted access to different sets of posts.

• Added shortcode & API functions [groups_user_group] / [groups_user_groups] that allows to show the list of groups the current user or a specific user belongs to
• Added shortcode & API functions [groups_groups]to show the site's list of groups
• Class comments.

• Reduced plugin admin footer.

• Fixed issues caused by an excessively long index for the capability DB table. Some installations wouldn't work correctly, showing no capabilities and making it impossible to add new ones.
  
• Taking into account blog charset/collation on newly created tables.

• Groups shortcodes now allow nesting.

• Fixed admin override option not being updated
• DB tables checked individually to create (motivated by case of all but capability table not being created)

• Groups wouldn't activate due to a fatal error on WP <

• Increased length of capability.capability, capability.class, capability.object columns to support long capabilities.
• Improved admin CSS.

• This is the first public beta release.

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