On 05/14/2014 04:23 AM, Sayth Renshaw wrote:
Hi
Looking for some guidance and advice on using xml as an update source
for my to be data web project. If I am consistently going to be
updating data into the database from XML files what is a good method?
Should I be creating a Sax parser as in this example
http://iamtgc.com/importing-xml-into-a-database-with-python-and-sqlalchemy/
.
To be clear the XML I am importing from is not basic, using from that
example my xml would like more like. So i would need to filter the
values out that I want which I have acheived using xmltodict.
|<!-- books.xml -->|
|<||catalog||>|
|||<||book| |isbn||=||"1-880985-26-8"||binding="paperback"
ebook="mobi" altformat="pdf" etc="ManyMore">|
|||<||title||>The Consumer</||title||>|
|||<||author||>M. Gira</||author||>|
|||</||book||>|
|||<||book| |isbn||=||"0-679775-43-9"|||binding="paperback"
ebook="mobi" altformat="pdf" etc="ManyMore"|>|
|||<||title||>The Wind-Up Bird Chronicle</||title||>|
|||<||author||>Haruki Murakami</||author||>|
|||</||book||>|
|||<!-- imagine more entries here... -->|
|</||catalog||>|
Copies are available here
http://old.racingnsw.com.au/Site/_content/racebooks/20140515GOSF0.xml
Or should I be attempting to filter and convert the XML to json format
and import into SQLAlchemy.
Or other, searching around I cannot, strangely find one and only one
way to do it. It seems to be a mish mosh of good luck, well from
perspective of someone looking to implement this for the first time.
Probably painfully obvious to those who have done it before.
Anyway thank you for your time.
Sayth
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The last time I had to domething like this, I converted all xml
attributes to tags using an XSLT sheet and then used lxml to populate a
sqla object.
You can also do it manually as in the link but use lxml etree which
might make the code a bit easier to read. IMO sax is a bit more
performant than etree but can get a bit confusing.
HTH
AM
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