From 834686037c6e30f0ac59eccb1f316b6cbe85199d Mon Sep 17 00:00:00 2001
From: Adrian Greeve <adrian@moodle.com>
Date: Mon, 30 Jan 2012 15:52:20 +0800
Subject: [PATCH] MDL-25185 - data - Allowing data from the database to be
 exported according to group roles.

---
 mod/data/export.php |  6 +++++-
 mod/data/lib.php    | 14 ++++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/mod/data/export.php b/mod/data/export.php
index e108b4d78e0..e865858c3ec 100644
--- a/mod/data/export.php
+++ b/mod/data/export.php
@@ -84,6 +84,8 @@ if($mform->is_cancelled()) {
     $PAGE->set_title($data->name);
     $PAGE->set_heading($course->fullname);
     echo $OUTPUT->header();
+    $url = new moodle_url('/mod/data/export.php', array('d' => $d));
+    groups_print_activity_menu($cm, $url);
     echo $OUTPUT->heading(format_string($data->name));
 
     // these are for the tab display
@@ -104,7 +106,9 @@ foreach ($formdata as $key => $value) {
     }
 }
 
-$exportdata = data_get_exportdata($data->id, $fields, $selectedfields);
+$currentgroup = groups_get_activity_group($cm);
+
+$exportdata = data_get_exportdata($data->id, $fields, $selectedfields, $currentgroup);
 $count = count($exportdata);
 switch ($formdata['exporttype']) {
     case 'csv':
diff --git a/mod/data/lib.php b/mod/data/lib.php
index 2bee85bf059..54072d2b334 100644
--- a/mod/data/lib.php
+++ b/mod/data/lib.php
@@ -2804,9 +2804,11 @@ function data_export_ods($export, $dataname, $count) {
  * @param int $dataid
  * @param array $fields
  * @param array $selectedfields
+ * @param int $currentgroup group ID of the current group. This is used for
+ * exporting data while maintaining group divisions.
  * @return array
  */
-function data_get_exportdata($dataid, $fields, $selectedfields) {
+function data_get_exportdata($dataid, $fields, $selectedfields, $currentgroup=0) {
     global $DB;
 
     $exportdata = array();
@@ -2826,7 +2828,15 @@ function data_get_exportdata($dataid, $fields, $selectedfields) {
     $line = 1;
     foreach($datarecords as $record) {
         // get content indexed by fieldid
-        if( $content = $DB->get_records('data_content', array('recordid'=>$record->id), 'fieldid', 'fieldid, content, content1, content2, content3, content4') ) {
+        if ($currentgroup) {
+            $select = 'SELECT c.fieldid, c.content, c.content1, c.content2, c.content3, c.content4 FROM {data_content} c, {data_records} r WHERE c.recordid = ? AND r.id = c.recordid AND r.groupid = ?';
+            $where = array($record->id, $currentgroup);
+        } else {
+            $select = 'SELECT fieldid, content, content1, content2, content3, content4 FROM {data_content} WHERE recordid = ?';
+            $where = array($record->id);
+        }
+
+        if( $content = $DB->get_records_sql($select, $where) ) {
             foreach($fields as $field) {
                 $contents = '';
                 if(isset($content[$field->field->id])) {