Resolve outstanding issues

api/chalicelib/api/objects.py

@@ -19,7 +19,10 @@ def delete(user, id):
 
 def get(user, id):
   db = database.get_db()
-  return db.objects.find_one(ObjectId(id))
+  obj = db.objects.find_one(ObjectId(id))
+  if not obj:
+    raise util.errors.NotFound('Object not found')
+  return obj
 
 def copy_to_project(user, id, project_id):
   db = database.get_db()

web/src/components/main/projects/ObjectViewer.js

@@ -227,7 +227,7 @@ const mapStateToProps = (state, ownProps) => {
     return aDate < bDate;
   });
   const user = state.users.users.filter(u => state.auth.currentUserId === u._id)[0];
-  const myProjects = state.projects.projects.filter(p => p.owner && p.owner.username === user.username);
+  const myProjects = state.projects.projects.filter(p => p.owner?.username === user?.username);
   return { user, myProjects, project, objects, fullProjectPath: `${username}/${projectPath}`, object, comments };
 };
 const mapDispatchToProps = dispatch => ({

web/src/components/main/projects/objects/DraftPreview.js

@@ -59,6 +59,7 @@ class DraftPreview extends Component {
       const weftColourwayCanvas = document.querySelector(`.preview-${id} .weft-colourway`);
       const drawdownCanvas = document.querySelector(`.preview-${id} .drawdown`);
       const tieupsCanvas = document.querySelector(`.preview-${id} .tieups`);
+      if (warpCanvas) {
         ctx.drawImage(warpColourwayCanvas, canvas.width - warpCanvas.width - weft.treadles * baseSize - 20, 0);
         ctx.drawImage(warpCanvas, canvas.width - warpCanvas.width - weft.treadles * baseSize - 20, 10);
         ctx.drawImage(weftCanvas, canvas.width - 10 - weft.treadles * baseSize, warp.shafts * baseSize + 20);
@@ -67,6 +68,7 @@ class DraftPreview extends Component {
         ctx.drawImage(drawdownCanvas, canvas.width - drawdownCanvas.width - weft.treadles * baseSize - 20, warp.shafts * baseSize + 20);
 
         this.props.onImageLoaded(canvas.toDataURL());
+      }
     }, 500);
   }
 

web/src/components/main/projects/objects/Tieups.js

@@ -36,8 +36,10 @@ class Tieups extends Component {
     const tieups = Object.assign([], this.props.tieups);
 
     if (tieup >= tieups.length) this.fillUpTo(tieups, tieup);
-    if (tieups[tieup] && tieups[tieup].indexOf(shaft) === -1) tieups[tieup].push(shaft);
+    if (tieups[tieup] !== undefined) {
+      if (tieups[tieup].indexOf(shaft) === -1) tieups[tieup].push(shaft);
       else tieups[tieup].splice(tieups[tieup].indexOf(shaft));
+    }
     this.props.updatePattern({ tieups });
   }