Merge pull request #180 from xAPI-vle/background_by_default

feat: Defaults to using background mode to close #165.

docs/configure-the-plugin.md

 # Configure the plugin
 
+**Note that by default the plugin now runs in background mode via a cron task to avoid blocking page responses. This can be changed on the configuration page.**
+
 1. Set your “endpoint” to your LRS endpoint (e.g. “<http://your.lrs/xAPI>”).
 1. Set your “username” to your LRS basic auth key/username (e.g. “d416e6220812740d3922eb09813ebb4163e8eb3e”).
 1. Set your “password” to your LRS basic auth secret/password (e.g. “bc7e0a2edd5d1969b6d774e679d4eb4e7a35be13”).

lang/en/logstore_xapi.php

@@ -28,7 +28,7 @@ $string['username'] = 'Username';
 $string['xapisettingstitle'] = 'Logstore xAPI Settings';
 $string['backgroundmode'] = 'Send statements by scheduled task?';
 $string['backgroundmode_desc'] = 'This will force Moodle to send the statements to the LRS in the background,
-        via a cron task. This will make the process less close to real time, but will help to prevent unpredictable
+        via a cron task to avoid blocking page responses. This will make the process less close to real time, but will help to prevent unpredictable
         Moodle performance linked to the performance of the LRS.';
 $string['maxbatchsize'] = 'Maximum batch size';
 $string['maxbatchsize_desc'] = 'Statements are sent to the LRS in batches. This setting controls the maximum number of

settings.php

@@ -33,7 +33,7 @@ if ($hassiteconfig) {
     // Switch background batch mode on.
     $settings->add(new admin_setting_configcheckbox('logstore_xapi/backgroundmode',
         get_string('backgroundmode', 'logstore_xapi'),
-        get_string('backgroundmode_desc', 'logstore_xapi'), 0));
+        get_string('backgroundmode_desc', 'logstore_xapi'), 1));
 
     $settings->add(new admin_setting_configtext('logstore_xapi/maxbatchsize',
         get_string('maxbatchsize', 'logstore_xapi'),