Error when adding a `where` to an include when included model has not entries

I have a tree that has categories.

• Each category may have child categories.
• Root level categories are those categories where categoryId is null.

When retrieving the tree, I want the first level categories eagerly loaded.

When listing trees for a given user, have to do some funky joining to get the correct trees, so I use a custom query to get the initial tree list, then loop over this list calling reload with an includes block to populate the trees how I need them. Suboptimal? Likely but let’s please ignore that aspect for now.

I’m getting the following error when I added a where clause to the categories portion of my reload includes block, but only when the tree in question has no categories associated with it:

SequelizeInstanceError: Instance could not be reloaded because it does not exist anymore (find call returned null)

My tree reload code:

tree.reload(
    include: [
      {
        model: Category,
        as: 'categories',
        where: {
          categoryId: {
            $eq: null
          }
        }
      }
    ]
  });

[janmeier]

But its probably because the reload query does not return any results at all - Which makes sequelize think that the row has been deleted. Try adding required: false to the incldue

[faceleg]

Thanks for the response. I’ll test your suggestion @janmeier tonight.