Quote of Tomorrow via RSS

The latest release of Q2OH went live last night and now it truly delivers the Quote of Tomorrow. Each night a quote is chosen at random and added to the new RSS feed. It uses the Feeds plugin and the Quartz plugin to make it happen and both are remarkable. Here is what it took to create and schedule a job as part of a Grails app:

class FeedSeedJob {

def quoteService

def cronExpression = "1 0 0 * * ?"
def group = "QotdGroup"

def execute() {
    def qotd = quoteService.getQotdQuote()
    println "QOTD is ${qotd.content}"
}
}

I honestly don't know how it could be any easier.

Today's Timestamp is Tomorrow's Date

I have been working on a RSS feed for Q2OH. The Feeds plugin makes it as easy as I can imagine. I have run into a quirk or two with data formats that have nothing at all to do with the plugin. It seems my Dates are Timestamps. Grails does such a good job of things just working that I never noticed before. Trying to format a Timestamp is not exactly the same as formatting a Date. Also, when an API needs a Date, it may choke on a Timestamp. This makes sense and once understood is not too huge a stumbling block. However I noticed one thing that I found interesting and works in my favor. Incrementing a Timestamp seems to turn it into a Date.

Since Q2OH is the Quote of Tomorrow, in the feed entry I add a day to the field that holds the day the quote was added to the feed. In the Domain Class Quote, qotd is a Date. Here is the entire code necessary to create the feed:

class FeedsController {

def rss = {
 render(feedType:"rss", feedVersion:"2.0") {
     title = "Q2OH >> Quote of Tomorrow"
     link = "http://host:port/app/rss/feed"
     description = "The Quote of Tomorrow"

     Quote.findAllByQotdIsNotNull().each() { quote ->
         entry("Quote for ${quote.qotd + 1}") {
             link = "http://host:port/app/quote/display/${quote.id}"
             author = quote.author
             publishedDate = (java.util.Date) quote.qotd
             quote.content // return the content
         }
     }
 }
}
}

This results in an entry title of : Quote for Fri Nov 21 10:22:50 EST 2008

Originally the code was:

    entry("Quote for ${quote.qotd}") {

That had an entry title of: Quote for 2008-11-20 10:22:50.0

So if you ask me, tomorrow looks better than today.