Ticket #7245: 7245.diff

src/bp-core/classes/class-bp-core-user.php

@@ -912 +912 @@
                 // Set cache.
                 wp_cache_set( $user_id, $activity[ $user_id ], 'bp_last_activity' );
 
+                /**
+                 * Fires when a user's last_activity value has been updated.
+                 *
+                 * @since 2.7.0
+                 *
+                 * @param int    $user_id ID of the user.
+                 * @param string $time    Last activity timestamp, in 'Y-m-d H:i:s' format.
+                 */
+                do_action( 'bp_core_user_updated_last_activity', $user_id, $time );
+
                 return $updated;
         }
 

src/bp-members/bp-members-cache.php

@@ -61 +61 @@
 }
 add_action( 'wpmu_delete_user', 'bp_members_clear_member_type_cache' );
 add_action( 'delete_user', 'bp_members_clear_member_type_cache' );
+
+/**
+ * Invalidate activity caches when a user's last_activity value is changed.
+ *
+ * @since 2.7.0
+ *
+ * @return bool True on success, false on failure.
+ */
+function bp_members_reset_activity_cache_incrementor() {
+        return bp_core_reset_incrementor( 'bp_activity' );
+}
+add_action( 'bp_core_user_updated_last_activity', 'bp_members_reset_activity_cache_incrementor' );

tests/phpunit/testcases/members/cache.php

@@ -22 +22 @@
                 // check if function references cache or hits the DB by comparing query count
                 $this->assertEquals( $num_queries, $wpdb->num_queries );
         }
+
+        /**
+         * @ticket BP7237
+         * @ticket BP6643
+         * @ticket BP7245
+         */
+        public function test_last_activity_should_bust_activity_cache() {
+                global $wpdb;
+
+                $u1 = $this->factory->user->create();
+                $u2 = $this->factory->user->create();
+
+                $time_1 = date( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS );
+                $time_2 = date( 'Y-m-d H:i:s', time() - ( HOUR_IN_SECONDS * 2 ) );
+                bp_update_user_last_activity( $u1, $time_1 );
+                bp_update_user_last_activity( $u2, $time_2 );
+
+                $activity_args = array(
+                        'filter' => array(
+                                'object' => buddypress()->members->id,
+                                'action' => 'last_activity',
+                        ),
+                        'max' => 1,
+                );
+
+                // Prime cache.
+                $a1 = bp_activity_get( $activity_args );
+                $expected = array( $u1, $u2 );
+                $found = array_map( 'intval', wp_list_pluck( $a1['activities'], 'user_id' ) );
+                $this->assertSame( $expected, $found );
+
+                // Bump u2 activity so it should appear first.
+                $new_time = date( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS );
+                bp_update_user_last_activity( $u2, $new_time );
+
+                $a2 = bp_activity_get( $activity_args );
+                $expected = array( $u2, $u1 );
+                $found = array_map( 'intval', wp_list_pluck( $a2['activities'], 'user_id' ) );
+                $this->assertSame( $expected, $found );
+        }
 }