From 3774a6323c87e8f3a961dc286bc00a572ceb9c9b Mon Sep 17 00:00:00 2001
From: Shamim Rezaie <rezaie@foodle.org>
Date: Wed, 29 Jul 2015 11:21:01 +1000
Subject: [PATCH] Added ability to modify templates and save them with same
 name.

An option named "replace" has been added to the same
template form so user can choose to overwrite an existing
template (i.e. modify and save an existing template).
---
 lang/en/customcert.php |  1 +
 save_template.php      | 21 ++++++++++++++++-----
 save_template_form.php |  9 ++++++---
 styles.css             |  4 ++++
 4 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/lang/en/customcert.php b/lang/en/customcert.php
index f21ef32..484667f 100644
--- a/lang/en/customcert.php
+++ b/lang/en/customcert.php
@@ -86,6 +86,7 @@ $string['posx_help'] = 'This is the position in mm from the top left corner you
 $string['posy'] = 'Postion Y';
 $string['posy_help'] = 'This is the position in mm from the top left corner you wish the element to display in the y direction.';
 $string['receiveddate'] = 'Received date';
+$string['replacetemplate'] = 'Replace';
 $string['report'] = 'Report';
 $string['save'] = 'Save';
 $string['savechangespreview'] = 'Save changes and preview';
diff --git a/save_template.php b/save_template.php
index 2b720e6..d61dc36 100644
--- a/save_template.php
+++ b/save_template.php
@@ -41,12 +41,23 @@ require_capability('mod/customcert:manage', $context);
 // Store the current time in a variable.
 $time = time();
 
-// Create the template.
-$template = new stdClass();
-$template->name = $name;
-$template->timecreated = $time;
+if (!$template = $DB->get_record('customcert_template', array('name' => $name))) {
+    // Create the template.
+    $template = new stdClass();
+    $template->name = $name;
+    $template->timecreated = $time;
+}
+
 $template->timemodified = $time;
-$template->id = $DB->insert_record('customcert_template', $template);
+
+if (empty($template->id)) {
+    $template->id = $DB->insert_record('customcert_template', $template);
+} else {
+    $DB->update_record('customcert_template', $template);
+    $templatepages = $DB->get_records_menu('customcert_template_pages', array('templateid' => $template->id));
+    $DB->delete_records_list('customcert_template_elements', 'templatepageid', array_keys($templatepages));
+    $DB->delete_records('customcert_template_pages', array('templateid' => $template->id));
+}
 
 // Get the pages of the customcert we are copying.
 if ($pages = $DB->get_records('customcert_pages', array('customcertid' => $customcert->id))) {
diff --git a/save_template_form.php b/save_template_form.php
index ca75190..2127e20 100644
--- a/save_template_form.php
+++ b/save_template_form.php
@@ -38,6 +38,7 @@ class mod_customcert_save_template_form extends moodleform {
         $group = array();
         $group[] = $mform->createElement('text', 'name');
         $group[] = $mform->createElement('submit', 'savetemplatesubmit', get_string('save', 'customcert'));
+        $group[] = $mform->createElement('checkbox', 'replace', null, get_string('replacetemplate', 'customcert'));
 
         $mform->addElement('group', 'savetemplategroup', get_string('templatename', 'customcert'), $group, '', false);
 
@@ -66,9 +67,11 @@ class mod_customcert_save_template_form extends moodleform {
 
         $errors = parent::validation($data, $files);
 
-        // Ensure the name does not already exist.
-        if ($DB->record_exists('customcert_template', array('name' => $data['name']))) {
-            $errors['savetemplategroup'] = get_string('templatenameexists', 'customcert');
+        if (empty($data['replace'])) {
+            // Ensure the name does not already exist.
+            if ($DB->record_exists('customcert_template', array('name' => $data['name']))) {
+                $errors['savetemplategroup'] = get_string('templatenameexists', 'customcert');
+            }
         }
 
         return $errors;
diff --git a/styles.css b/styles.css
index e054eb3..13edcb2 100644
--- a/styles.css
+++ b/styles.css
@@ -2,6 +2,10 @@
     text-align:right;
 }
 
+#page-mod-customcert-edit #id_replace {
+    margin-left: 10px;
+}
+
 #page-mod-customcert-report .centre {
     margin-left: auto;
     margin-right: auto;