Use Default recording rule template in MythWeb

when creating new recording rules.  This patch only uses values from the
Default recording rule template, but it's still better/more capable than
the old approach that pulled values for a few parameters from settings.

Patch by Paul Gardiner (thanks!) with minor changes by me.
Fixes #11512.

Signed-off-by: Michael T. Dean <mdean@mythtv.org>

modules/tv/classes/Schedule.php

@@ -241,6 +241,47 @@ public function __construct($data) {
             $this->css_class = category_class($this);
     }
 
+/**
+ * Alternative constructor for returning recording templates
+ **/
+    static function recording_template($name) {
+        global $db;
+        $sched = new Schedule(NULL);
+        $data = $db->query_assoc('
+            SELECT *
+            FROM   record
+            WHERE  type = ?
+            AND    title = ?',
+            rectype_template,
+            $name.' (Template)'
+        );
+
+        $template_params = array(
+            'recpriority', 'prefinput', 'startoffset', 'endoffset',
+            'dupmethod', 'dupin', 'filter', 'inactive',
+            'profile', 'recgroup', 'storagegroup', 'playgroup', 'autoexpire',
+            'maxepisodes', 'maxnewest',
+            'autocommflag', 'autotranscode', 'transcoder',
+            'autouserjob1', 'autouserjob2', 'autouserjob3', 'autouserjob4',
+            'autometadata');
+        foreach ($template_params as $param)
+            if (isset($data[$param]))
+                $sched->$param = $data[$param];
+
+        return $sched;
+    }
+
+/**
+ * Merge values from another schedule
+ **/
+    public function merge($prog) {
+        foreach (get_object_vars($prog) as $name => $value) {
+            if ($value && !$this->$name) {
+                $this->$name = $value;
+            }
+        }
+    }
+
 /**
  * Save this schedule
 /**/

modules/tv/detail.php

@@ -266,6 +266,10 @@
     // Redirect back to the page again, but without the query string, so reloads are cleaner
         redirect_browser(root_url.'tv/detail/'.$program->chanid.'/'.$program->starttime);
     }
+    else {
+    // Load default values from Default recording rule template
+        $schedule->merge(Schedule::recording_template('Default'));
+    }
 
 // Load the channel
     if ($program)

modules/tv/schedules_custom.php

@@ -160,6 +160,8 @@
             case searchtype_title:
             default:                 $schedule->search_type = t('Title');   break;
         }
+    // Load default values from Default recording rule template
+        $schedule->merge(Schedule::recording_template('Default'));
     }
 
 // Create an edit-friendly title

modules/tv/schedules_manual.php

@@ -120,6 +120,8 @@
     // Date/time/etc
         if (!$schedule->starttime)
             $schedule->starttime = time();
+    // Load default values from Default recording rule template
+        $schedule->merge(Schedule::recording_template('Default'));
     }
 
 // Calculate the length