Science To Bfg
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This document discusses migrating the NASA science website (science.nasa.gov) from its existing manually maintained HTML format to the Repoze BFG content management system. Repoze BFG provides a lightweight and fast Python-based system using the same Zope Object Database and catalog search as Plone. The document outlines how the NASA site content could be modeled as objects in the ZODB and rendered using traversal and templates in Repoze BFG.
Science To Bfg
- 1. Migrating a public NASA site to Repoze BFG Chris Shenton koansys.com
- 2. Talk Overview • Science@NASA • Repoze BFG • S@N in BFG
- 3. science@nasa • science.nasa.gov • 13 years of stories • 1.8 million visits/month • manually maintained • varying HTML formats over time • no built-in search
- 4. s@n varying html • 2009
- 5. s@n varying html • 2003
- 6. s@n varying html • 1996
- 7. CMS Wanted • Folders, Pages • Files, Images • Search • TTW Editor • Permissions per object
- 8. Existing Plone Site • nasascience.nasa.gov • too complex
- 9. New Plone Site? • Plone3’s become painful :-(
- 10. Repoze BFG? • Same Zope Object Database • Similar ZPT Templates • Same Catalog index, search • Tiny • Fast • Easy to learn
- 11. Repoze BFG • http://bfg.repoze.org/ • “Zope with the serial numbers filed off” • Chris McDonough’s 4th implementation • 100% test coverage • Excellent, complete documenation • Good fit for CMS-shaped data • ZODB • Traversal
- 12. ZODB • Persistent object store • Python objects • Dictionaries, attributes • children = page.items() • parent = page.__parent__
- 13. ZODB for lightly structured data recipes Spanish seafood paella sangria grouper squid on bbq cava red
- 14. ZODB: flexible recipes Spanish seafood paella sangria grouper squid on bbq cava red tasting photo notes
- 15. Traversal: the way we think /recipes/Spanish/sangria/cava recipes /recipes/seafood/squid Spanish seafood paella sangria grouper squid on bbq cava red
- 16. Traversal We don’t need no stinking ORM
- 17. Models: just Python • Folderish Page
- 18. Models: just Python • File • Image • subclass • blobs
- 20. View: add, edit
- 21. Templates Chameleon: ZPT on steroids • ZPT, TAL, METAL • http://chameleon.repoze.org/docs/zpt/ • http://www.zope.org/Documentation/ Books/ZopeBook/2_6Edition/ZPT.stx • http://wiki.zope.org/ZPT/ TALSpecification14
- 23. Templates: page view • fill-slot
- 24. Catalog: index • define indices
- 26. Import science@nasa • wget site • import html • use xpaths
- 27. But will it blend? • Live demo!