Add version check to cron manager

application/config/migration.php

@@ -22,7 +22,7 @@ $config['migration_enabled'] = TRUE;
 |
 */
 
-$config['migration_version'] = 217;
+$config['migration_version'] = 219;
 
 /*
 |--------------------------------------------------------------------------

application/migrations/219_add_version_check_to_cron.php

@@ -0,0 +1,33 @@
+<?php
+defined('BASEPATH') or exit('No direct script access allowed');
+
+class Migration_add_version_check_to_cron extends CI_Migration {
+	public function up() {
+		if ($this->chk4cron('version_check') == 0) {
+			$data = array(
+				array(
+					'id' => 'version_check',
+					'enabled' => '0',
+					'status' => 'pending',
+					'description' => 'Check for new Wavelog releases',
+					'function' => 'index.php/update/wavelog_update_check',
+					'expression' => '45 4 * * *',
+					'last_run' => null,
+					'next_run' => null
+				));
+			$this->db->insert_batch('cron', $data);
+		}
+	}
+
+	public function down() {
+		if ($this->chk4cron('version_check') > 0) {
+			$this->db->query("delete from cron where id='version_check'");
+		}
+	}
+
+	function chk4cron($cronkey) {
+		$query = $this->db->query("select count(id) as cid from cron where id=?",$cronkey);
+		$row = $query->row();
+		return $row->cid ?? 0;
+	}
+}