diff --git a/README.md b/README.md
index a9a77b7..dc2de70 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,14 @@ moodle_report_messages
======================
A simple report to view message exchanges between user from a course
+
+To install, clone this plugin in $MOODLE/report/messages folder:
+ $ cd $MOODLE/report
+ $ git clone https://github.com/interlegis/moodle_report_messages.git messages
+
+Enter in your moodle site as admin user and install the plugin
+
+Usage:
+ In a course, click in Administration > Report > Messages report to see a
+ synthesis report for all enrolled users. Click in {view details} link to
+ see all messages sended from/to that user.
diff --git a/db/access.php b/db/access.php
new file mode 100644
index 0000000..5619fe7
--- /dev/null
+++ b/db/access.php
@@ -0,0 +1,43 @@
+.
+
+/**
+ * Capabilities
+ *
+ * @package report_outline
+ * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$capabilities = array(
+
+ 'report/messages:view' => array(
+ 'riskbitmask' => RISK_PERSONAL,
+ 'captype' => 'read',
+ 'contextlevel' => CONTEXT_COURSE,
+ 'archetypes' => array(
+ 'teacher' => CAP_ALLOW,
+ 'editingteacher' => CAP_ALLOW,
+ 'manager' => CAP_ALLOW
+ ),
+
+ 'clonepermissionsfrom' => 'coursereport/messages:view',
+ )
+);
+
+
diff --git a/db/install.php b/db/install.php
new file mode 100644
index 0000000..7eee477
--- /dev/null
+++ b/db/install.php
@@ -0,0 +1,32 @@
+.
+
+/**
+ * Post installation and migration code.
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 2011 Petr Skoda {@link http://skodak.org}
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+function xmldb_report_messages_install() {
+ global $DB;
+
+}
+
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..cff4abb
--- /dev/null
+++ b/index.php
@@ -0,0 +1,87 @@
+.
+
+/**
+ * Display user messages reports for a course (totals)
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require('../../config.php');
+require_once($CFG->dirroot.'/report/messages/locallib.php');
+
+$id = required_param('id',PARAM_INT); // course id
+
+$course = $DB->get_record('course', array('id'=>$id), '*', MUST_EXIST);
+
+$PAGE->set_url('/report/messages/index.php', array('id'=>$id));
+$PAGE->set_pagelayout('report');
+
+require_login($course);
+$context = context_course::instance($course->id);
+require_capability('report/messages:view', $context);
+
+add_to_log($course->id, 'course', 'report messages', "report/messages/index.php?id=$course->id", $course->id);
+
+$strviewdetail = get_string('viewdetail', 'report_messages');
+$stractivityreport = get_string('pluginname', 'report_messages');
+$stractivity = get_string('activity');
+$strlast = get_string('lastaccess');
+$strreports = get_string('reports');
+$strviews = get_string('views');
+$strrelatedblogentries = get_string('relatedblogentries', 'blog');
+
+$PAGE->set_title($course->shortname .': '. $stractivityreport);
+$PAGE->set_heading($course->fullname);
+
+echo $OUTPUT->header();
+echo $OUTPUT->heading(format_string($course->fullname));
+
+$messagestable = new html_table();
+$messagestable->attributes['class'] = 'generaltable boxaligncenter';
+$messagestable->cellpadding = 5;
+$messagestable->id = 'messagestable';
+$messagestable->head = array(get_string('fullname'), get_string('totalsended', 'report_messages'),
+ get_string('totalreceived','report_messages'), $strviewdetail);
+$messagestable->align = array('left', 'right', 'right', 'center');
+$messagestable->data = array();
+
+$userlist = get_enrolled_users($context, '', 0, 'u.id');
+list($in_user, $param_users) = $DB->get_in_or_equal(array_keys($userlist), SQL_PARAMS_QM);
+$fullname = $DB->sql_fullname('u.firstname', 'u.lastname');
+
+$sql = "
+select u.id, $fullname as fullname, u.picture, u.firstname, u.lastname, u.imagealt, u.email,
+ (select count(*) from mdl_message where useridfrom=u.id and useridto<>u.id and useridto $in_user) as totalsend,
+ (select count(*) from mdl_message where useridto=u.id and useridfrom<>u.id and useridfrom $in_user) as totalreceive
+from mdl_user u
+where u.id $in_user
+";
+
+$data = $DB->get_records_sql($sql, array_merge($param_users,$param_users,$param_users));
+
+foreach ($data as $user) {
+ $upic = $OUTPUT->user_picture($user);
+ $ulink = "wwwroot}/user/view.php?id={$user->id}&course={$course->id}\">{$upic}";
+ $link = "wwwroot/report/messages/user.php?id=$user->id&course=$course->id\">$strviewdetail";
+ $messagestable->data[] = array($ulink.' '.$user->fullname, $user->totalsend, $user->totalreceive, $link);
+}
+
+echo html_writer::table($messagestable);
+echo $OUTPUT->footer();
diff --git a/lang/en/report_messages.php b/lang/en/report_messages.php
new file mode 100644
index 0000000..76c436c
--- /dev/null
+++ b/lang/en/report_messages.php
@@ -0,0 +1,36 @@
+.
+
+/**
+ * Strings
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['messages:view'] = 'View activity report';
+$string['page-report-messages-x'] = 'Any messages report';
+$string['page-report-messages-index'] = 'Course messages report';
+$string['page-report-messages-user'] = 'User course messages report';
+$string['pluginname'] = 'Messages report';
+$string['reporttitle'] = 'Message report to user {$a->fullname}';
+$string['exchangedmessages'] = '{$a->userlink} {$a->total_messages} messages exchanged with {$a->fullname}';
+$string['message'] = 'Message body';
+$string['viewdetail'] = 'View details';
+$string['totalsended'] = 'Total sended messages';
+$string['totalreceived'] = 'Total received messages';
diff --git a/lang/pt_br/report_messages.php b/lang/pt_br/report_messages.php
new file mode 100644
index 0000000..1e3355c
--- /dev/null
+++ b/lang/pt_br/report_messages.php
@@ -0,0 +1,34 @@
+.
+
+/**
+ * Strings
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['messages:view'] = 'Ver relatório de mensagens';
+$string['page-report-messages-x'] = 'Um relatório de mensagens';
+$string['page-report-messages-index'] = 'Relatório de mensagens do curso';
+$string['page-report-messages-user'] = 'Relatório de mensagens do usuário no curso';
+$string['pluginname'] = 'Relatório de Mensagens';
+$string['reporttitle'] = 'Relatório de mensagens do usuário {$a->fullname}';
+$string['exchangedmessages'] = '{$a->userlink} {$a->total_messages} mensagens trocadas com {$a->fullname}';
+$string['message'] = 'Texto da mensagem';
+$string['viewdetail'] = 'Ver detalhes';
diff --git a/lib.php b/lib.php
new file mode 100644
index 0000000..e3a5e4e
--- /dev/null
+++ b/lib.php
@@ -0,0 +1,105 @@
+.
+
+/**
+ * This file contains public API of messages report
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 2009 Sam Hemelryk
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * This function extends the course navigation with the report items
+ *
+ * @param navigation_node $navigation The navigation node to extend
+ * @param stdClass $course The course to object for the report
+ * @param stdClass $context The context of the course
+ */
+function report_messages_extend_navigation_course($navigation, $course, $context) {
+ if (has_capability('report/messages:view', $context)) {
+ $url = new moodle_url('/report/messages/index.php', array('id'=>$course->id));
+ $navigation->add(get_string('pluginname', 'report_messages'), $url, navigation_node::TYPE_SETTING, null, null, new pix_icon('i/report', ''));
+ }
+}
+
+/**
+ * This function extends the course navigation with the report items
+ *
+ * @param navigation_node $navigation The navigation node to extend
+ * @param stdClass $user
+ * @param stdClass $course The course to object for the report
+ */
+function report_messages_extend_navigation_user($navigation, $user, $course) {
+ if (report_messages_can_access_user_report($user, $course)) {
+ $url = new moodle_url('/report/messages/user.php', array('id'=>$user->id, 'course'=>$course->id));
+ $navigation->add(get_string('pluginname', 'report_messages'), $url);
+ }
+}
+
+/**
+ * Is current user allowed to access this report
+ *
+ * @private defined in lib.php for performance reasons
+ *
+ * @param stdClass $user
+ * @param stdClass $course
+ * @return bool
+ */
+function report_messages_can_access_user_report($user, $course) {
+ global $USER;
+
+ $coursecontext = context_course::instance($course->id);
+ $personalcontext = context_user::instance($user->id);
+
+ if (has_capability('report/messages:view', $coursecontext)) {
+ return true;
+ }
+
+ if (has_capability('moodle/user:viewuseractivitiesreport', $personalcontext)) {
+ if ($course->showreports and (is_viewing($coursecontext, $user) or is_enrolled($coursecontext, $user))) {
+ return true;
+ }
+
+ } else if ($user->id == $USER->id) {
+ if ($course->showreports and (is_viewing($coursecontext, $USER) or is_enrolled($coursecontext, $USER))) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/**
+ * Return a list of page types
+ * @param string $pagetype current page type
+ * @param stdClass $parentcontext Block's parent context
+ * @param stdClass $currentcontext Current context of block
+ * @return array
+ */
+function report_messages_page_type_list($pagetype, $parentcontext, $currentcontext) {
+ $array = array(
+ '*' => get_string('page-x', 'pagetype'),
+ 'report-*' => get_string('page-report-x', 'pagetype'),
+ 'report-messages-*' => get_string('page-report-messages-x', 'report_messages'),
+ 'report-messages-index' => get_string('page-report-messages-index', 'report_messages'),
+ 'report-messages-user' => get_string('page-report-messages-user', 'report_messages')
+ );
+ return $array;
+}
diff --git a/locallib.php b/locallib.php
new file mode 100644
index 0000000..ba4761c
--- /dev/null
+++ b/locallib.php
@@ -0,0 +1,55 @@
+.
+
+/**
+ * This file contains functions used by the outline reports
+ *
+ * @package report
+ * @subpackage outline
+ * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+require_once(dirname(__FILE__).'/lib.php');
+require_once($CFG->dirroot.'/course/lib.php');
+
+function report_outline_print_row($mod, $instance, $result) {
+ global $OUTPUT, $CFG;
+
+ $image = "![](\"")
pix_url('icon', $mod->modname) . "\" class=\"icon\" alt=\"$mod->modfullname\" />";
+
+ echo "";
+ echo "| $image | ";
+ echo "";
+ echo " modfullname\"";
+ echo " href=\"$CFG->wwwroot/mod/$mod->modname/view.php?id=$mod->id\">".format_string($instance->name,true)." | ";
+ echo " | ";
+ echo "";
+ if (isset($result->info)) {
+ echo "$result->info";
+ } else {
+ echo " - ";
+ }
+ echo " | ";
+ echo " | ";
+ if (!empty($result->time)) {
+ $timeago = format_time(time() - $result->time);
+ echo "".userdate($result->time)." ($timeago) | ";
+ }
+ echo "
";
+}
diff --git a/styles.css b/styles.css
new file mode 100644
index 0000000..aff09a7
--- /dev/null
+++ b/styles.css
@@ -0,0 +1,8 @@
+#page-report-outline-index td.numviews {text-align:right;}
+#page-report-outline-index tr.section {text-align: center;}
+#page-report-outline-index td.lastaccess {font-size: 0.8em;}
+
+#page-report-outline-user .section .content {margin-left: 30px;margin-right: 30px;}
+#page-report-outline-user .section h2 {margin-top: 0;}
+#page-report-outline-user .section {margin-left: 30px;margin-right: 30px;margin-bottom: 20px;}
+#page-report-outline-user .section {border-width:1px;border-style:solid;padding:10px;}
diff --git a/user.php b/user.php
new file mode 100644
index 0000000..5bc34b7
--- /dev/null
+++ b/user.php
@@ -0,0 +1,124 @@
+.
+
+/**
+ * Display user activity reports for a course (totals)
+ *
+ * @package report
+ * @subpackage outline
+ * @copyright 1999 onwards Martin Dougiamas http://dougiamas.com
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require('../../config.php');
+require_once('locallib.php');
+
+$userid = required_param('id', PARAM_INT);
+$courseid = required_param('course', PARAM_INT);
+
+$user = $DB->get_record('user', array('id'=>$userid, 'deleted'=>0), '*', MUST_EXIST);
+$course = $DB->get_record('course', array('id'=>$courseid), '*', MUST_EXIST);
+
+$coursecontext = context_course::instance($course->id);
+$personalcontext = context_user::instance($user->id);
+
+if ($USER->id != $user->id and has_capability('moodle/user:viewuseractivitiesreport', $personalcontext)
+ and !is_enrolled($coursecontext, $USER) and is_enrolled($coursecontext, $user)) {
+ //TODO: do not require parents to be enrolled in courses - this is a hack!
+ require_login();
+ $PAGE->set_course($course);
+} else {
+ require_login($course);
+}
+
+if (!report_messages_can_access_user_report($user, $course, true)) {
+ require_capability('report/messages:view', $coursecontext);
+}
+
+add_to_log($course->id, 'course', 'report messages', "report/messages/user.php?id=$user->id&course=$course->id", $course->id);
+
+$PAGE->set_pagelayout('admin');
+$PAGE->set_url('/report/messages/user.php', array('id'=>$user->id, 'course'=>$course->id));
+$PAGE->navigation->extend_for_user($user);
+$PAGE->navigation->set_userid_for_parent_checks($user->id); // see MDL-25805 for reasons and for full commit reference for reversal when fixed.
+$PAGE->set_title($course->shortname.': '.get_string('pluginname', 'report_messages'));
+$PAGE->set_heading($course->fullname);
+echo $OUTPUT->header();
+echo ''.get_string('reporttitle','report_messages',array('fullname'=>fullname($user))).'
';
+
+$from = $DB->get_records_sql('select distinct m.useridfrom as id from {message} m where m.useridto = ? and m.useridfrom <> ?', array($user->id, $user->id));
+$to = $DB->get_records_sql('select distinct m.useridto as id from {message} m where m.useridfrom = ? and m.useridto <> ?', array($user->id, $user->id));
+$contacts = array();
+$sqlfullname = $DB->sql_fullname('u.firstname','u.lastname');
+$sql = "
+ select u.id, $sqlfullname as fullname, count(*) as total_messages, u.picture, u.firstname, u.lastname, u.imagealt, u.email
+ from {user} u, {message} m
+ where u.id = ? and
+ ((m.useridfrom = ? and m.useridto = ?) or
+ (m.useridfrom = ? and m.useridto = ?))
+ group by u.id, u.username, u.firstname, u.lastname, u.email
+";
+
+foreach ($from as $u) {
+ if (is_enrolled($coursecontext, $u)) {
+ $contacts[$u->id] = $DB->get_record_sql($sql, array($u->id, $u->id, $user->id, $user->id, $u->id));
+ }
+}
+
+
+foreach ($to as $u) {
+ if (is_enrolled($coursecontext, $u)) {
+ $contacts[$u->id] = $DB->get_record_sql($sql, array($u->id, $u->id, $user->id, $user->id, $u->id));
+ }
+}
+
+if (empty($contacts)) {
+ echo $OUTPUT->notification(get_string('nothingtodisplay'));
+} else {
+ $sqlfromname = $DB->sql_fullname('fu.firstname','fu.lastname');
+ $sqltoname = $DB->sql_fullname('tu.firstname','tu.lastname');
+ $sql = "
+ select m.timecreated, $sqlfromname as fromuser, $sqltoname as touser, m.fullmessage, m.fullmessageformat
+ from {message} m
+ inner join {user} fu on fu.id = m.useridfrom
+ inner join {user} tu on tu.id = m.useridto
+ where (m.useridfrom = ? and m.useridto = ?) or
+ (m.useridfrom = ? and m.useridto = ?)
+ order by m.timecreated desc
+ ";
+
+ foreach ($contacts as $contact) {
+ echo $OUTPUT->box_start();
+ $upic = $OUTPUT->user_picture($contact);
+ $ulink = "wwwroot}/user/view.php?id={$contact->id}&course={$course->id}\">{$upic}";
+ $a = array('userlink'=>$ulink, 'total_messages'=>$contact->total_messages, 'fullname'=>$contact->fullname);
+ $head = get_string('exchangedmessages', 'report_messages', $a);
+ echo "$head
";
+
+ $table = new html_table();
+ $tabl->attributes['class'] = 'generaltable boxaligncenter';
+ $table->head = array(get_string('date'), get_string('from'), get_string('to'), get_string('message', 'report_messages'));
+ $messages = $DB->get_records_sql($sql, array($user->id, $contact->id, $contact->id, $user->id));
+ $table->data = array();
+ foreach ($messages as $message) {
+ $table->data[] = array(userdate($message->timecreated), $message->fromuser, $message->touser, format_text($message->fullmessage, $message->fullmessageformat));
+ }
+ echo html_writer::table($table);
+ echo $OUTPUT->box_end();
+ }
+}
+
+echo $OUTPUT->footer();
diff --git a/version.php b/version.php
new file mode 100644
index 0000000..647a66f
--- /dev/null
+++ b/version.php
@@ -0,0 +1,30 @@
+.
+
+/**
+ * Version info
+ *
+ * @package report
+ * @subpackage messages
+ * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+$plugin->version = 2013050100; // The current plugin version (Date: YYYYMMDDXX)
+$plugin->requires = 2013050100; // Requires this Moodle version
+$plugin->component = 'report_messages'; // Full name of the plugin (used for diagnostics)