Exclude posts given their IDs from being seen by users with given WordPress roles.

lifterlms-groups/automatically-create-group-with-group-admin-when-purchased-via-woocommerce.php

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+<?php // Do not copy this line!
+/**
+ * Create a LifterLMS Group for every WooCommerce order. Set the number of seats
+ * to be equal to the "quantity" of items bought in WooCommerce.
+ *
+ * You can add this recipe to your site by creating a custom plugin
+ * or using the Code Snippets plugin available for free in the WordPress repository.
+ * Read this companion documentation for step-by-step directions on either method.
+ * https://lifterlms.com/docs/adding-custom-code/
+ *
+ * @param int $order_id The WooCommerce order ID.
+ *
+ * @return void
+ */
+function create_llms_group_with_admin($order_id)
+{
+    if (class_exists('LLMS_Group') && class_exists('LLMS_Groups_Enrollment') ) {
+        // Get integration.
+        $integration = llms_groups()->get_integration();
+        $name        = $integration->get_option('post_name_singular');
+        $visibility  = $integration->get_option('visibility')
+
+        // Setup arguments.
+        $args = wp_parse_args(
+            $args,
+            array(
+                'post_status' => 'publish',
+                'post_title'  => sprintf(__('New %s', 'lifterlms-groups'), $name),
+                'meta_input'  => array(
+                    '_llms_visibility' => $visibility,
+                ),
+            )
+        );
+
+        // Create the group.
+        $group = new LLMS_Group('new', $args);
+
+        // Assign group administrator.
+        $order = wc_get_order($order_id);
+        LLMS_Groups_Enrollment::add(
+            $order->get_user_id(),
+            $group->get('id'),
+            'woocommerce_order',
+            'admin'
+        );
+
+        $order_data = $order->get_data();
+
+        // Assign the number of seats in the group.
+        // You're developer can modify this logic to be as custom as you want.
+        foreach ($order->get_items() as $item_key => $item ) {
+            $product = wc_get_product($item['product_id']);
+            $quantity = $item->get_quantity();
+            $group->set('seats', $quantity);
+        }
+    }
+}
+
+add_action('woocommerce_order_status_completed', 'create_llms_group_with_admin');
+add_action('woocommerce_order_status_processing', 'create_llms_group_with_admin');
+

lifterlms/courses-lessons/exclude-posts-from-user-roles.php

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+<?php // Do not copy this line!
+/**
+ * Exclude posts (given their IDs) from being seen by users given a list of roles.
+ *
+ * Learn more at: https://lifterlms.com/link-to-content-if-available-or-remove-this-line/
+ *
+ * You can add this recipe to your site by creating a custom plugin
+ * or using the Code Snippets plugin available for free in the WordPress repository.
+ * Read this companion documentation for step-by-step directions on either method.
+ * https://lifterlms.com/docs/adding-custom-code/
+ *
+ * @param WP_Query $query The WP_Query to modify.
+ */
+function exclude_posts_for_roles( $query ) {
+	// Do not exclude when the user is the WordPress administrator.
+	if ( is_admin() ) {
+		return;
+	}
+
+	// Replace the array with your actual roles you want.
+	$roles_to_exclude = array(
+		'student',
+		'editor',
+	);
+
+	// Replace the array with your actual post IDs to exclude.
+	$posts_to_exclude = array(
+		20,
+		22,
+	);
+
+	// If the user is not logged in, we cannot check their role.
+	// So exclude the posts from non-logged in visitors.
+	if ( ! is_user_logged_in() ) {
+		$query->set( 'post__not_in', $posts_to_exclude );
+		return;
+	}
+
+	// Check if the logged-in user has any of the specified roles.
+	$user_has_excluded_role = false;
+	$user                   = wp_get_current_user();
+	$user_roles             = (array) $user->roles;
+	$intersect              = array_intersect( $user_roles, $roles_to_exclude );
+	if ( ! empty( $intersect ) ) {
+		$user_has_excluded_role = true;
+	}
+
+	// If the user has any of the specified roles, exclude the specific posts.
+	if ( $user_has_excluded_role ) {
+		$query->set( 'post__not_in', $posts_to_exclude );
+	}
+}
+
+add_action( 'pre_get_posts', 'exclude_posts_for_roles' );