How to add a "post to Twitter" button to every entry?

Not sure if this is what you're looking for but this is how I did it on my website:

<a href="http://twitter.com/home?status=RT via %40yourtwitter%3A <$MTEntryTitle encode_html="1"> <$mt:EntryPermalink encode_url="1"$>" target="_blank">Tweet This</a>

Thank you. I'll try it out.

One potential problem is that twitter will not auto shorten long url's.

If you have a bit.ly account (free) you can use their API like this

<script type="text/javascript" charset="utf-8" src="http://bit.ly/javascript-api.js?version=latest&login=BITLY_ID&apiKey=BITLY_API_KEY"></script>
<script type="text/javascript">
BitlyCB.shortenResponse = function(data) {
var s = '';
var first_result;
// Results are keyed by longUrl, so we need to grab the first one.
for (var r in data.results) {
first_result = data.results[r]; break;
}

// Now get the shortURL
shortURL = first_result["shortUrl"];
document.location = "http://www.twitter.com/home/?status=Reading:+" +
escape(document.title) + "+" + shortURL
+ "+{via+@me}";
}
</script>
<img src="./amazing_twitter_graphic.png" onClick="BitlyClient.shorten(document.location, 'BitlyCB.shortenResponse');">

Note: Not my code, taken from a post on the ProBlogger 31 Days to Build a Better Blog forums.

I have actually been looking for something like this myself. However using either escape(document.title) or includes %20 for every space when the page redirects to Twitter.

How do you get rid of the %20 for spaces? Anyone know?

Ken

Try replacing

escape(document.title) + "+" + shortURL

with

document.title.replace(/ /g,"+") + "+" + shortURL

It puts in the + signs in as needed to alleviate the %20, but it just fails to load the page.

Twitter is under DDOS attack at the moment making it difficult to test :)

Thanks all for the tips. I ended up using the TweetMeme.com script. Works well, includes a count of how many times the URL to a post has been tweeted.

Hey Rob, many thanks! I got it working, and yes the 2 days of wonkyness because of the DoS made testing no fun. Check out my code here if you wish:

http://bgviewsnetwork.com/dev/2009/08/setting-up-rewriterules-for-profile-and-tags/

Ken

Here is the script provided by Rob but it now opens in a new window. The only problem is that window.open will not work if Safari is set to block popups. Oddly even if Firefox is set to block the popups, window.open still works.

<script type="text/javascript" charset="utf-8" src="http://bit.ly/javascript-api.js?version=latest&login=BITLYID&apiKey=BITLYAPI"></script>
<script type="text/javascript">
BitlyCB.shortenResponse = function(data) {
var s = '';
var first_result;
// Results are keyed by longUrl, so we need to grab the first one.
for (var r in data.results) {
first_result = data.results[r]; break;
}

// Now get the shortURL

shortURL = first_result["shortUrl"];

windowOpenUrl = "http://www.twitter.com/home/?status=" + document.title.replace(/ /g,"+") + "+" + shortURL + "+(via+@example)";

window.open(windowOpenUrl, 'new_window', 'width=600,height=400');}

</script>

<img style="cursor: pointer;" src="/images/tweet_this.gif" title="Tweet about <$MTEntryTitle encode_html="0">" onClick="BitlyClient.shorten(document.location, 'BitlyCB.shortenResponse');">

Hey Rob, many thanks! I got it working, and yes the 2 days of wonkyness because of the DoS made testing no fun. Check out my code here if you wish:
http://www.solicitors-in.co.uk/