Make "Course Schedule by Term" data available for older terms (Fall 2013 and earlier)

[nathanv]

via email support:

"Can you say why "Course Schedule by Term" data for some older terms is not available?

I'm gathering class sizes for a collection of courses and am finding that no data is available for terms older that fall 2013 (1139).

The UW Registrar's page usually restricts listings to 4 terms worth of course schedule data:
http://www.adm.uwaterloo.ca/infocour/CIR/SA/under.html

The CS dept, however, has a similar page of course schedule data (for any UW
course) for over 10 years of terms. And the data looks like the UW Registrar pages. Their URL is https://cs.uwaterloo.ca/cscf/teaching/schedule/

Here's an example for course CHEM 123 in Winter 2013 (1131):
This URL
https://api.uwaterloo.ca/v2/terms/1131/CHEM/123/schedule.json?key=e4f2a20a4d95c0e0292aa5f14224ca83

returns

{
"meta":{
"requests":78,
"timestamp":1407528285,
"status":204,
"message":"No data returned",
"method_id":1193,
"method":{
}
},
"data":[

]
}

The CS dept course schedule page has this information:

https://info.uwaterloo.ca/cgi-bin/cgiwrap/infocour/salook.pl?sess=1131&level=under&subject=CHEM&cournum=123

just not in json format.
"

[KartikTalwar]

The goal is to have the last 10yrs worth of schedule data imported after we do our infrastructure migration in the next month