Pollster Rating Pollster Rating Object, may be tied to multiple pollster objects
Pollster Name For Scrapers
Caveats
There are exceptions to the "Pollster" vs "Sponsor" distinction. For example, Fox News polls are actually conducted by Beacon Research (D) + Shaw and Company Research (R).
Limitations
Pollster <--> Poll is one-to-one relationship instead of a many-to-one, so when pollsters collaborate, we create a new pollster for that.
We don't have the distinction between a pollster and a "survey house" like HuffPost's data structure does
Crosstab is only currently used for favorability questions. It can be expanded if we start collecting more crosstabs, but will need an update before we use it for anything else.
Limitations
Question.type versus QuestionType...Approval Questions have subtypes, which are stored in the QuestionType object
Politician A person (biographical info imported from VoteSmart in many cases)
Candidate A person, in a particular year, running for a particular office, in
Office Organization that paid for it
Matchup Pollster Rating Object, may be tied to multiple pollster objects
Race (new) For Scrapers
Caveats
Matchup is mostly a residual table from before we had Race. We keep the table around since it makes some queries a little faster, and so we don't have to modify a bunch of old code...but it may go away.