Add setting 'allow_career_diagram' see BT#12861

Allow careers to have a diagram based in a CSV file.

Requires DB change:

alter table extra_field_values modify column value longtext null;

Author: jmontoyaa

main/admin/career_diagram.php

@@ -0,0 +1,95 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+use ChamiloSession as Session;
+
+/**
+ *  @package chamilo.admin
+ */
+
+/*
+ *
+ * Requires extra_field_values.value to be longtext to save diagram:
+ *
+update extra_field_values set created_at = null where created_at = '0000-00-00 00:00:00';
+update extra_field_values set updated_at = null where updated_at = '0000-00-00 00:00:00';
+
+UPDATE extra_field_values SET created_at = NULL WHERE CAST(created_at AS CHAR(20)) = '0000-00-00 00:00:00';
+UPDATE extra_field_values SET updated_at = NULL WHERE CAST(updated_at AS CHAR(20)) = '0000-00-00 00:00:00';
+
+alter table extra_field_values modify column value longtext null;
+
+*/
+
+$cidReset = true;
+require_once __DIR__.'/../inc/global.inc.php';
+
+if (api_get_configuration_value('allow_career_diagram') == false) {
+    api_not_allowed(true);
+}
+
+$this_section = SECTION_PLATFORM_ADMIN;
+
+api_protect_admin_script();
+
+$htmlHeadXtra[] = api_get_js('jsplumb2.js');
+
+$careerId = isset($_GET['id']) ? $_GET['id'] : 0;
+if (empty($careerId)) {
+    api_not_allowed(true);
+}
+
+// setting breadcrumbs
+$interbreadcrumb[] = array(
+    'url' => 'index.php',
+    'name' => get_lang('PlatformAdmin'),
+);
+$interbreadcrumb[] = array(
+    'url' => 'career_dashboard.php',
+    'name' => get_lang('CareersAndPromotions'),
+);
+
+$interbreadcrumb[] = array(
+    'url' => 'careers.php',
+    'name' => get_lang('Careers'),
+);
+
+$action = isset($_GET['action']) ? $_GET['action'] : null;
+
+$check = Security::check_token('request');
+$token = Security::get_token();
+
+if ($action == 'add') {
+    $interbreadcrumb[] = array('url' => 'careers.php', 'name' => get_lang('Careers'));
+    $tool_name = get_lang('Add');
+} elseif ($action == 'edit') {
+    $interbreadcrumb[] = array('url' => 'careers.php', 'name' => get_lang('Careers'));
+    $interbreadcrumb[] = array('url' => '#', 'name' => get_lang('Edit'));
+    $tool_name = get_lang('Edit');
+} else {
+    $tool_name = get_lang('Careers');
+}
+
+$career = new Career();
+$careerInfo = $career->get($careerId);
+if (empty($careerInfo)) {
+    api_not_allowed(true);
+}
+
+$extraFieldValue = new ExtraFieldValue('career');
+$item = $extraFieldValue->get_values_by_handler_and_field_variable(
+    $careerId,
+    'career_diagram',
+    false,
+    false,
+    false
+);
+
+if (!empty($item) && isset($item['value']) && !empty($item['value'])) {
+    $graph = unserialize($item['value']);
+    $html = Display::page_header($careerInfo['name']);
+    $html .= Career::renderDiagram($graph);
+    $tpl = new Template('');
+    $tpl->assign('content', $html);
+    $tpl->display_one_col_template();
+}

main/admin/careers.php

@@ -81,9 +81,16 @@
 //height auto
 $extra_params['height'] = 'auto';
 
+$diagramLink = '';
+$allow = api_get_configuration_value('allow_career_diagram');
+if ($allow) {
+    $diagramLink = '<a href="'.api_get_path(WEB_CODE_PATH).'admin/career_diagram.php?id=\'+options.rowId+\'">'.get_lang('Diagram').'</a>';
+}
+
 //With this function we can add actions to the jgrid (edit, delete, etc)
 $action_links = 'function action_formatter(cellvalue, options, rowObject) {
     return \'<a href="?action=edit&id=\'+options.rowId+\'">'.Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>'.
+    $diagramLink.
     '&nbsp;<a onclick="javascript:if(!confirm('."\'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES))."\'".')) return false;"  href="?sec_token='.$token.'&action=copy&id=\'+options.rowId+\'">'.Display::return_icon('copy.png', get_lang('Copy'), '', ICON_SIZE_SMALL).'</a>'.
     '&nbsp;<a onclick="javascript:if(!confirm('."\'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES))."\'".')) return false;"  href="?sec_token='.$token.'&action=delete&id=\'+options.rowId+\'">'.Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>'.
     '\';