Prepare to create card from template

models/cards.js

@@ -272,6 +272,31 @@ Cards.allow({
 });
 
 Cards.helpers({
+  copy() {
+      const oldId = this._id;
+      this._id = null;
+      const _id = Cards.insert(this);
+
+      // copy checklists
+      Checklists.find({cardId: oldId}).forEach((ch) => {
+          ch.copy(_id);
+      });
+
+      // copy subtasks
+      Cards.find({parentId: oldId}).forEach((subtask) => {
+        subtask.parentId = _id;
+        subtask._id = null;
+        Cards.insert(subtask);
+      });
+
+      // copy card comments
+      CardComments.find({cardId: oldId}).forEach((cmt) => {
+          cmt.copy(_id);
+      });
+
+      return _id;
+  },
+
   list() {
     return Lists.findOne(this.listId);
   },