Filter Question - Make Results match both filters

Can you give more details about your planned category structure, content-types and content? I guess, your screenshot is a "mockup"? Or are you using a category-tree and assign multiple categories as "properties" to your staff?

Sure pepper,

Each Person will be one of the following (Staff, Faculty, type of student). Then they can belong to a Department such as Math. I believe you said it correctly that each category is a property to a Person.

My problem happens if I want to find all Staff of Biology. Instead it brings all staff and all biology together. Maybe there is another way to approach this problem?

I think I may be onto a better way to do this.

I'm making a dropdown field that has person type(Staff, Faculty, etc..) and making that field searchable/sortable. I think this will allow the distinction I need. Will report back.

Depending on your final search behavior and wanted results, there are many different ways to set it up. One important thing to remember: Who does enter the information? Who is able to get and search the information. i.e. is type just a property or do you need a respective J! usergroup. Are there any viewing restrictions? Departments: Are they a simple property? Or does it need further information itself. etc. etc.

I understand what you want. You want AND instead of OR. Only records that in both categories.

I looked into the code. And it is not easy to change for categories filter.

I think you need to use field for that. In checkbox, listautocomple, multiselect - there is special parameter in the filter how to search.