Issue 1827 - Fix Discourse site_settings

modules/discourse/manifests/sitesetting.pp

 define discourse::sitesetting(
   $setting = $title,
   $value = undef,
   $type = 1,
   $ensure = 'present'
 ) {
 
   $escaped_value = postgresql_escape($value)
   $escaped_setting = postgresql_escape($setting)
   $escaped_type = postgresql_escape($type)
 
   case $ensure {
     default: {
       err("unknown ensure value ${ensure}")
     }
     present: {
       # This is apparently how you do a conditional INSERT in PostgreSQL - sorry
-      $update_sql = "UPDATE site_settings SET value = '$escaped_value', data_type = $escaped_type WHERE name = '$escaped_setting' RETURNING 1"
+      $update_sql = "UPDATE site_settings SET value = $escaped_value, data_type = $escaped_type WHERE name = $escaped_setting RETURNING 1"
       $columns = "name, data_type, value, created_at, updated_at"
-      $values = "SELECT '$escaped_setting', $escaped_type, '$escaped_value', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP"
+      $values = "SELECT $escaped_setting, $escaped_type, $escaped_value, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP"
 
       postgresql_psql {"WITH upd AS ($update_sql) INSERT INTO site_settings ($columns) $values WHERE NOT EXISTS (SELECT * FROM upd)":
         db => 'discourse',
         psql_user => 'discourse',
         notify => Service['discourse'],
-        unless => "SELECT 1 FROM site_settings WHERE name = '$escaped_setting' AND value = '$escaped_value' AND data_type = $escaped_type",
+        unless => "SELECT 1 FROM site_settings WHERE name = $escaped_setting AND value = $escaped_value AND data_type = $escaped_type",
       }
     }
     absent: {
-      postgresql_psql {"DELETE FROM site_settings WHERE name = '$escaped_setting'":
+      postgresql_psql {"DELETE FROM site_settings WHERE name = $escaped_setting":
         db => 'discourse',
         psql_user => 'discourse',
         notify => Service['discourse'],
-        unless => "SELECT 1 WHERE NOT EXISTS (SELECT 1 FROM site_settings WHERE name = '$escaped_setting')",
+        unless => "SELECT 1 WHERE NOT EXISTS (SELECT 1 FROM site_settings WHERE name = $escaped_setting)",
       }
     }
   }
 }