Re: [IUG] Are you using Adam Brin's SMS code in your OPAC?

[Bob Duncan <duncanr at lafayette dot edu>]

At 09:55 PM 8/17/2009, Valentina Mayz wrote:
> We finally got with the times and took advantage of a neat code written by
> Adam Brin, which lets you click on a button to send yourself a txt message
> with the item's title, location, and call# -- right from your OPAC.
>
> I have been implementing Joshua Kiela's php version (SMS
> <http://innovativeusers.org/iug_clearinghouse-app?qfdo=Full+Record&id=183&ti
> tle=SMS%20Message%20from%20Web%20OPAC%20%28PHP%20script%29&browsetype=Browse
> %20by%20Module&searchtext=11>  Message from Web OPAC (PHP script) ) of
> Adam's Perl script, and have hit a snag - if you have or are using this
> code, please read on and give me your thoughts off list.
>
> The option for SMS should not display in records for which there is no call
> number - for example: ebooks and online journals. I searched Adam's OPAC
> for  KW "Perl" and indeed, the SMS feature is present if you drill down to a
> book, but it is not present if you drill down to an ebook record. However,
> on our end the icon shows up regardless, but if you click on the SMS button
> inside an ebook record, that's when it disappears.
> . . .
> My point is that, although I am not an experienced programmer, I believe
> the logic of whether to show or hide the div that displays the SMS buttons
> depends on the JavaScript finding a call# in the record; if there is a
> call#, the div is visible and functional; if there isn't a call#, then it
> applies the "visibility:hidden;display:none" attributes to the 'sms' div.
>
> If anyone out there has seen this before and found a workaround, please
> email me!


The script isn't looking for a call number per se -- it's looking for 
the existence of an HTML anchor element in the middle cell of a 
3-column table that has the id attribute "bib_items".  There's a 
little script in bib_display.html that disappears the button if 
there's no such table (that's what the try/catch piece is doing), but 
there's nothing in there that disappears the button if there's no 
middle cell with an anchor.  So if you just copy the part of the 
sms.js script that looks for the anchor tag into the bib_display.html 
script block into another try/catch statement, you should get what you want.

Translation:  add the following to the script block in 
bib_display.html, just after the catch :

try {
 var itms = document.getElementById('bib_items');
 var tr = itms.getElementsByTagName('TR');
  for(i = 1; i < tr.length; i++) {
    var xcells=tr[i].getElementsByTagName('TD');
    if (xcells.length == 3) {
        var callLinks = vmx[1].getElementsByTagName("a");
        var call = callLinks[0].innerHTML.replace(/(<([^>]+)>|&nbsp;)/ig,"");
    }
 }

} catch (e) {
document.getElementById('smsfeatures').style.visibility='hidden';
document.getElementById('smsfeatures').style.display='none';
}


There may be a more elegant way to do this, but this works in our system.

Note if you're not Valentina:  the above reflects the variable names 
in Nova's scripts; they may not be the same in your implementation.

Bob Duncan


~!~!~!~!~!~!~!~!~!~!~!~!~
Robert E. Duncan
Systems Librarian
Editor of IT Communications
Lafayette College
Easton, PA  18042
duncanr at lafayette dot edu
http://library.lafayette.edu/ 


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