move customsql back to admin and turn it into an app

Code/Lib/Apps.php

@@ -362,6 +362,7 @@ class Apps
             'Connections' => t('Connections'),
             'Content Filter' => t('Content Filter'),
             'Content Import' => t('Content Import'),
+            'Custom SQL' => t('Custom SQL'),
             'Directory' => t('Directory'),
             'Drafts' => t('Drafts'),
             'Events' => t('Events'),

Code/Module/Admin/Customsql.php

@@ -1,9 +1,10 @@
 <?php
 
-namespace Code\Module\Dev;
+namespace Code\Module\Admin;
 
 
 use Code\Render\Theme;
+use Code\Lib\Apps;
 
 
 class Customsql
@@ -20,6 +21,11 @@ class Customsql
             return;
         }
 
+        if (!Apps::system_app_installed(local_channel(), 'Custom SQL')) {
+            $text = t('Once installed, this app provides an admin-only interface to execute arbitrary SQL statements.');
+            return '<div class="section-content-info-wrapper">' . $text . '</div>';
+        }
+    
         $query = [ 'query', 'Enter an SQL query', '', '' ];
         $ok =    [ 'ok', 'OK to show all results?', '', '' ];
     
@@ -27,13 +33,13 @@ class Customsql
             '$title' => t('Custom SQL query'),
             '$warn' => t('If you do not know exactly what you are doing, please leave this page now.'),
             '$query' => $query,
-            '$form_security_token' => get_form_security_token('dev_customsql'),
+            '$form_security_token' => get_form_security_token('admin_customsql'),
             '$ok' => $ok,
             '$submit' => t('Submit')
         ]);
 
         if (isset($_REQUEST['query']) && $_REQUEST['query']) {
-            check_form_security_token_redirectOnErr('/dev/customsql', 'dev_customsql');
+            check_form_security_token_redirectOnErr('/admin/customsql', 'admin_customsql');
             $o .= EOL . EOL;
             $r = q($_REQUEST['query']);
             if (is_array($r) && count($r) > 500 && !isset($_REQUEST['ok'])) { 

app/customsql.apd

@@ -0,0 +1,6 @@
+version: 1
+url: $baseurl/admin/customsql
+requires: admin 
+name: Custom SQL
+photo: icon:mysql
+categories: System,nav_featured_app

view/tpl/customsql.tpl

@@ -3,7 +3,7 @@
 	<div class="section-content-wrapper">
     <div class="descriptive_text">{{$warn}}</div>
     <br><br>
-    <form action="dev/customsql" method="post">
+    <form action="admin/customsql" method="post">
     <input type="hidden" name="form_security_token" value="{{$form_security_token}}">
     {{include file="field_textarea.tpl" field=$query}}
     {{include file="field_checkbox.tpl" field=$ok}}