I think he just wants a notification when current date = release date for one or more records.
Not exactly. The IMDb
Release Date is the date the movie was (is expected to be) released. It has nothing to do with DVD release dates. Those are on the the DVD page (and all that information, BTW, comes from Amazon). He wants a notification when the current date equals the date he has manually entered in the
release field. I don't see much point in this. If the expected release date is just being entered manually, it can go in a custom field, and the list can be sorted on that field as required.
BTW, future release dates are sometimes an exact date, but are more often just a year. If so, the plugin returns nothing (although the release year is obviously the same as
Year). For those tracking unreleased movies, it might be helpful to return those as December 31 of the specified year. That way, at least those will appear in a logical position of a list sorted by release date.
Should it poll the source continuously for releases for all movies in the database?
By "source," I meant some external source of DVD release dates. I don't believe this would be feasible or practical, even if there were a suitable site. A simple comparison of two database values, of course, would be relatively instant. But then so would sorting by release date (movie or DVD). Such a list can also be restricted to wish items and to any particular range of release dates.
Sorry, it just seems gimmicky and of limited practical use—even to those who have an interest in the information. If it were possible to get and maintain the information automatically, then maybe. But there are a number of more practical things one can do if they are interested in DVD releases. As mentioned, a link to existing DVD releases per
Allmovie can be recorded. For upcoming releases, the Wish shopping cart button provides a direct link to an
Amazon search page for the movie. This page will normally show the release date and details of any planned DVD editions. A
Web search will do the same thing for other sources (e.g., wherever you buy your DVD's from). The release date and perhaps other details about the specific edition of interest can be recorded manually in custom fields. The loan feature can be used to track DVD's of interest and/or on order (by "loaning" the movie to "borrowers" like "Available at Amazon" and "On order from Amazon.")
The idea would be more useful if implemented in a more general way—as a simple "reminder" function. Specify custom fields for a "reminder date" and "reminder message." Then on startup, a list of titles and reminder messages for the current date could be displayed. To facilitate taking whatever action is required, it would be helpful to include a filter for "today's reminders."