How to restrict the filter to the existing terms?

There is a product
contains fields
1. name
2. description
3. product type (the taxonomy term)
4. image
5. the manufacturer (the taxonomy term)

Is a view of the output of goods-type filter in a drop-down list on the manufacturer.

The problem is that not all manufacturers have all types of products.
That is, if you choose a producer which does not have this type of product, then the view will be empty.

How to make to filter only those manufacturers who have this product?
September 26th 19 at 06:50
0 answer

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