Check-in rule editor: Add duplicate option

src/pretix/static/pretixcontrol/js/ui/checkinrules.js

@@ -119,6 +119,7 @@ $(document).ready(function () {
           date_tolerance: gettext('Tolerance (minutes)'),
           condition_add: gettext('Add condition'),
           minutes: gettext('minutes'),
+          duplicate: gettext('Duplicate'),
         },
         hasRules: false,
       };

src/pretix/static/pretixcontrol/js/ui/checkinrules/checkin-rule.vue

@@ -1,6 +1,10 @@
 <template>
     <div v-bind:class="classObject">
         <div class="btn-group pull-right">
+            <button type="button" class="checkin-rule-remove btn btn-xs btn-default" @click.prevent="duplicate"
+                  v-if="level > 0" data-toggle="tooltip" :title="texts.duplicate">
+              <span class="fa fa-copy"></span>
+            </button>
             <button type="button" class="checkin-rule-remove btn btn-xs btn-default" @click.prevent="wrapWithOR">OR
             </button>
             <button type="button" class="checkin-rule-remove btn btn-xs btn-default" @click.prevent="wrapWithAND">AND
@@ -260,6 +264,10 @@
       remove: function () {
         this.$parent.rule[this.$parent.operator].splice(this.index, 1);
       },
+      duplicate: function () {
+        var r = JSON.parse(JSON.stringify(this.rule));
+        this.$parent.rule[this.$parent.operator].splice(this.index, 0, r);
+      },
     }
   }
 </script>