blog.curry.com: Writing callbacks for mediaRSS

3/11/11; 11:06:22 AM by AC Good News, It Worked!

dialog.alert (addRandomNumber (nil, nil))

http://xmlviewer.scripting.com/?url=http://testing.curry.com/linkblog.xml

Attempting to get the item level call backs to work. This sin't happening for some reason with the test script.

I think I have to change the adrfeed to something like adritem

adritem isn't the right one.

I'm now going to walk through the post code to see if I can figure out what gets written and what adr I need to be looking at.

OK, I was missing a parameter. The full list is: (adruser, adrfeed, adritem)

3/11/11; 11:41:25 AM by AC It is now writing my thumbnail at the item level

3/11/11; 11:50:02 AM by AC HA! I was able to create a 'trap'. by adding the string [THUMBNAIL] to the post, it triggered a write from the callback with a URL, without the trigger word, it wrote a line saying it didn't work.

Here's my trap testing code

if adritem^.description contains "[THUMBNAIL]"

return ("" + "https://s3.amazonaws.com/adamcurry/BAS+Appisodes/2011/03/10/aloqaLabel.png" + "")

return ("" + "The trap didn't work" + "")

Now I have to figure out the following:

dialog.alert (addThumbnail (nil, nil, nil))

Use the trigger word followed by a URL to the thumbnail

Add ONLY the url to the callback write

Delete the whole trigger line from the post so it doesn't get written in the feed.

Some success

I can now get the thumbnail url parsed and into the callback with this code:

if adritem^.description contains "THUMBNAIL:"

s = string.firstWord (adritem^.description)

s = string.delete (s, 1, 10)

return ("" + s + "")

return ("" + "The trap didn't work" + "")

dialog.alert (addThumbnail (nil, nil, nil))

Now I need to delete the url and the trigger from the actual post.

If possible

I got pretty far!

I now can add the trigger, have the url written and the trigger removed from the description, but I still have to publish twice in order for the trigger to get stripped out of the description in the actual feed.

All in all not bad!

Here's the code:

if not defined (adritem^.thumbnail) and adritem^.description contains "THUMBNAIL:"

s = string.firstWord (adritem^.description)

s = string.delete (s, 1, 10)

table.assign (@adritem^.thumbnail, s)

t = adritem^.thumbnail

table.assign (@scratchpad.adamTemp, adritem^.description)

z = string.replace (scratchpad.adamTemp, "THUMBNAIL:" + t, "")

table.assign (@adritem^.description, z)

return ("" + t + "")

t = adritem^.thumbnail

return ("" + t + "")

If you want to skip over all the steps I went through and see the final code, it's here:

dialog.alert (addThumbnail (nil, nil, nil))

if not defined (adritem^.thumbnail) and adritem^.description contains "THUMBNAIL:"

s = string.firstWord (adritem^.description)

s = string.delete (s, 1, 10)

table.assign (@adritem^.thumbnail, s)

t = adritem^.thumbnail

table.assign (@scratchpad.adamTemp, adritem^.description)

z = string.replace (scratchpad.adamTemp, "THUMBNAIL:" + t, "")

table.assign (@adritem^.description, z)

return ("\r\t\t\t\t\r\t\t\t")

t = adritem^.thumbnail

return ("\r\t\t\t\t\r\t\t\t")