Has anyone successfully managed to use ZCatalog for cataloguing external sites?
I followed the example from the Spicklemire's book (Zope - Web Application Development
and Content Management, chapter 9), but didn't manage to get it working.
The basic idea is that you have a TinyTablePlus called CatalogedURLs storing URLs to
be catalogued (with one column of data called url). You also create a ZCatalog called
HTMLCatalog with an index called contents, and the title and source fields in the
metadata. Then you have an external method called HTMLForCatalog.py, which creates a
dummy object with title and content.
HTMLForCatalog.py:
-------------------------------
from ZPublisher import Client
import string
class dummyObject :
pass
def createTitle(url,data) :
aTitle = string.split(url,'/')[-1]
firstIndex = string.find(string.upper(data), '<TITLE>')
if (firstIndex <> -1):
secondIndex = string.find(string.upper(data), '<TITLE>')
if (secondIndex <> -1) :
aTitle = data[firstIndex+7:secondIndex]
return aTitle
def getHTMLForCatalog(self, url):
x = dummyObject()
theFile = Client.call(url)
theData = theFile[1]
x.title = createTitle(url, theData)
x.content = theData
aSource = string.split(url,'/')[-1]
x.source = string.join(aSource, '/')
return x
-----------------------------------------------
You connect an external method to the Zope site by creating GetHTMLForCatolog external
method in ZMI.
You also have a DTML method called addFilesToCatalog which calls the external method
addFilesToCatalog :
--------------------------------------------
<dtml-var standard_html_header>
<dtml-in CataloguedURLs>
<dtml-let newObject="GetHTMLForCatalog(anUrl)">
<dtml-call "HTMLCatalog.catalog_object(newObject,url)">
</dtml-let>
</dtml-in>
<p>
<dtml-in "HTMLCatalog()">whatever
<a href='<dtml-var "getPath()">'>
<dtml-var "getPath()">
<dtml-var title></a><br>
</dtml-in>
<dtml-var standard_html_footer>
---------------------------------
This doesn't work because the line 3 passes 'anURL', which is not defined . If I
change this to 'url' the URLs from the CatalogedURLs table are inserted into the
catalog, but the method fails to retrive title or content. Any suggestions as to how
to fix it or where I'm going wrong are welcomed. As, in fact, are any suggestions how
I can implement a search engine across Zope and non-Zope sites.
Many thanks,
Agata
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