Iron out some stuff with prerequisites for

[ryanhugh]

• [x] Lets sort them by classId and put the ones where the subject matches the same class at the beginning
• [x] Lets figure out some way to only show a few and then have a show more button to see more. Some are pretty long: http://localhost:5000/crim+1100 (especially on mobile)
• [x] Also down to only show prerequisites if there are prerequisites, corequisites if there are corequisites, and prerequisites for if there are prerequisites for to be shown.
• [x] Do we want to separate optional prereqsFor and required prereqsFor?

[edward-shen]

Just some more todos, from #29: Todo:

• [x] Crack a cold one with the boys
• [ ] Add documentation
• [x] Refactor code to better represent data unshitcode code.
• [x] Get Ryan to add more todos.
• [x] Utilize the isRequired argument in parsePreReqs. We currently don't do anything with it, and the original goal was to add to optional prereqs if isRequired was false, and required prereqs for if isRequired was true. duplicate of 3rd todo in OP.
• [ ] Add tests
• [x] Rank lists by how closely related to the subject of the class they're in.

[edward-shen]

For your 3rd bullet, I don't think that's a good idea. I'd rather have it show up as 'None' rather than not showing up at all, because it shows that there isn't a pre/co req, rather than we have the lack of data to show it.

[ryanhugh]

Truuuuuueeeeee. Lets do that

[edward-shen]

Note: I also fixed it when a class isn't a prerequisite for anything, it properly shows None instead of an empty line.

[edward-shen]

First bullet kinda done, the rest of the list is in reverse order and I can't seem to fix that. I'm calling it "good enough for now".

[ryanhugh]

Are we pretty much done everything here? I'm working on some tests in the refactor branch and am down to hold off on tests until we get that branch in.

[edward-shen]

We're still missing documentation, but otherwise yeah!

[edward-shen]

Closing for now in favor of #15 and #35.