InstaGov/schema/rating

About

• Purpose: Records the current value of one user's rating of a given answer (which in turn is tied to a specific question. These are the values which are aggregated to calculate the voting results for each question.
• Rules:
  • Any answer may have zero or more ratings.
  • Each user sets the value of their rating for each answer, and can change that rating at any time.
  • Changes to ratings are logged in the rating log.

History

• 2013-01-09 Removed the "ID_Proxy" field; see rating_log for explanation; added unique key: one rating per answer per user.

SQL

<mysql>CREATE TABLE `rating` (

  `ID` INT  NOT NULL AUTO_INCREMENT,
  `ID_User` INT COMMENT "user.ID who gave this rating",
  `ID_Answer` INT NOT NULL COMMENT "answer.ID for which this is a rating",
  `ID_Log` INT NOT NULL COMMENT "ID of log event which posted this value",
  `Value` INT NOT NULL COMMENT "rating value",
  `WhenDone` DATETIME NOT NULL COMMENT "when this rating was posted",
  `Remark` VARCHAR(255) COMMENT "comments on this rating (can include link)",
  PRIMARY KEY(`ID`),
  UNIQUE KEY(`ID_User`,`ID_Answer`)
)
ENGINE = MYISAM;</mysql>