From c4b21153ebbda7fd5676fdf4be1b0eed101162c4 Mon Sep 17 00:00:00 2001
From: Sergey Evstegneiev <go@123automate.it>
Date: Mon, 24 Feb 2020 12:23:49 +0100
Subject: [PATCH] Adding enrollment start & end date options (#328)

---
 element/date/classes/element.php              | 33 +++++++++++++++++++
 .../date/lang/en/customcertelement_date.php   |  2 ++
 element/date/version.php                      |  2 +-
 3 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/element/date/classes/element.php b/element/date/classes/element.php
index 7a95412..b67b1c0 100644
--- a/element/date/classes/element.php
+++ b/element/date/classes/element.php
@@ -56,6 +56,16 @@ define('CUSTOMCERT_DATE_COURSE_END', '-4');
  */
 define('CUSTOMCERT_DATE_CURRENT_DATE', '-5');
 
+/**
+ * Date - Enrollment start
+ */
+define('CUSTOMCERT_DATE_ENROLLMENT_START', '-6');
+
+/**
+ * Date - Entrollment end
+ */
+define('CUSTOMCERT_DATE_ENROLLMENT_END', '-7');
+
 require_once($CFG->dirroot . '/lib/grade/constants.php');
 
 /**
@@ -83,6 +93,9 @@ class element extends \mod_customcert\element {
         if ($completionenabled) {
             $dateoptions[CUSTOMCERT_DATE_COMPLETION] = get_string('completiondate', 'customcertelement_date');
         }
+        $dateoptions[CUSTOMCERT_DATE_ENROLLMENT_START] = get_string('enrollmentstartdate', 'customcertelement_date');
+        $dateoptions[CUSTOMCERT_DATE_ENROLLMENT_END] = get_string('enrollmentenddate', 'customcertelement_date');
+
         $dateoptions[CUSTOMCERT_DATE_COURSE_START] = get_string('coursestartdate', 'customcertelement_date');
         $dateoptions[CUSTOMCERT_DATE_COURSE_END] = get_string('courseenddate', 'customcertelement_date');
         $dateoptions[CUSTOMCERT_DATE_COURSE_GRADE] = get_string('coursegradedate', 'customcertelement_date');
@@ -164,6 +177,26 @@ class element extends \mod_customcert\element {
                         $date = $timecompleted->timecompleted;
                     }
                 }
+            } else if ($dateitem == CUSTOMCERT_DATE_ENROLLMENT_START) {
+                // Get the enrollment start date
+                $sql = "SELECT ue.timestart FROM {enrol} e JOIN {user_enrolments} ue ON ue.enrolid = e.id
+                         WHERE e.courseid = :courseid
+                           AND ue.userid = :userid";
+                if ($timestart = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                    if (!empty($timestart->timestart)) {
+                        $date = $timestart->timestart;
+                    }
+                }
+            } else if ($dateitem == CUSTOMCERT_DATE_ENROLLMENT_END) {
+                // Get the enrollment end date
+                $sql = "SELECT ue.timeend FROM {enrol} e JOIN {user_enrolments} ue ON ue.enrolid = e.id
+                         WHERE e.courseid = :courseid
+                           AND ue.userid = :userid";
+                if ($timeend = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                    if (!empty($timeend->timeend)) {
+                        $date = $timeend->timeend;
+                    }
+                }
             } else if ($dateitem == CUSTOMCERT_DATE_COURSE_START) {
                 $date = $DB->get_field('course', 'startdate', array('id' => $courseid));
             } else if ($dateitem == CUSTOMCERT_DATE_COURSE_END) {
diff --git a/element/date/lang/en/customcertelement_date.php b/element/date/lang/en/customcertelement_date.php
index 65471fa..ece67de 100644
--- a/element/date/lang/en/customcertelement_date.php
+++ b/element/date/lang/en/customcertelement_date.php
@@ -26,6 +26,8 @@ $string['completiondate'] = 'Completion date';
 $string['courseenddate'] = 'Course end date';
 $string['coursegradedate'] = 'Course grade date';
 $string['coursestartdate'] = 'Course start date';
+$string['enrollmentstartdate'] = 'Enrollment start date';
+$string['enrollmentenddate'] = 'Enrollment end date';
 $string['currentdate'] = 'Current date';
 $string['dateformat'] = 'Date format';
 $string['dateformat_help'] = 'This is the format of the date that will be displayed';
diff --git a/element/date/version.php b/element/date/version.php
index ba1a102..a35e160 100644
--- a/element/date/version.php
+++ b/element/date/version.php
@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
-$plugin->version   = 2018051700; // The current module version (Date: YYYYMMDDXX).
+$plugin->version   = 2018051701; // The current module version (Date: YYYYMMDDXX).
 $plugin->requires  = 2018051700; // Requires this Moodle version (3.5).
 $plugin->component = 'customcertelement_date';