Blog info updated
Screenshots for current development version and download info updated.
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May the cloud be with you
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Searching strings
Well, another thing I learnt today: how to search a given string in a RDF graph but matching only Literals:
def by_term(self, search_term):
query = """
SELECT DISTINCT ?rid
WHERE {
?rid ?predicate ?object .
FILTER isLiteral(?object) .
FILTER regex(?object, "%s", "i")
}
ORDER BY ?object
""" % Literal(search_term)
result = run_query(query, self.graph)
query = """
SELECT DISTINCT ?rid
WHERE {
?rid ?predicate ?object .
FILTER isLiteral(?object) .
FILTER regex(?object, "%s", "i")
}
ORDER BY ?object
""" % Literal(search_term)
result = run_query(query, self.graph)
return result.selected
The most important here is the operator isLiteral used in the filters.
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Vazaar 0.4.8: a new release for testing
Hi,
another version of Vazaar is out for testing. Get it while hot. There are a lot of changes respect older versions. Now, you can manage easily your notes, diary, bookmarks an other resources. Also, you can display them as graph of connected resources or as a list. Resources can be imported/exported to/from other persons.
Don’t hesitate to email me with your comments (kaskaras @ gmail.com). Please, visit my launchpad project page for more info, report bugs, ask questions, etc.
.
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What is coming in the next version
Despite of the fact I don’t post in this weblog most often I think I haven’t wasted my spare time (my current work isn’t related with anything about this, yet). Instead it has been very productive and I am very happy with last results. In the end, I’m starting to see something useful.
Most of time, I’ve been reading more and more about NEPOMUK and playing with SPARQL queries. I have to recognize that it not that simple as I thought in a first moment but I’ll talk about this [intlink id="41" type="category" target="_self"]later[/intlink].
I have something to say about RDFLib: it is wonderful. From time to time I have to deal with some glitches but, most of them, are related to my own code. Anyway I am not using all the potential that this library offers.
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distutils implemented
Finally, I got the way to implement distutils into Vazaar. It lacks support for i18n/gettext but it is in the way. I’ve released a new tarball. You can launch it as developer inside your home with the command ./launch
But if you prefer a wide-system install, you must use the following command:
sudo python2.5 setup.py install
You can find an entry under Applications -> Office -> Vazaar
python 2.6 also works but it throws warnings.
Please, note that you can NOT combine different versions of python because database sqlite formats differs each from other.
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