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First Indico Workshop

Join us for an intensive hands-on workshop focusing on the exploration of Indico's ZODB database, conducted from May 27-29, 2013, at CERN. Led by José Benito González López, participants will learn to access data using Python command-line tools without a UI. The workshop will cover various data structures in Indico, including users, categories, and conferences. Attendees will use the Indico shell to connect to the database, explore the avatar and conference information, and learn how to manage and modify data efficiently.

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First Indico Workshop

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  1. First Indico Workshop Hands-on: DB exploration 27-29 May 2013 CERN José Benito González López

  2. zodb DB written in Python No UI to access data… …but there is Python command-line!

  3. zodb Tree-like structure

  4. Holders Core: Index that helps us to fetch the information • AvatarHolderindex of Indico users • CategoryManagerindex of Indico categories • ConferenceHolderindex of Indico conferences • IndexHolderindex of all Indico indexes • …

  5. Indico_shell Command provided by Indico Custom python shell; using Indico code to access data • 1. Connects to Indico DB • 2. Loads many classes automatically • ConferenceHolder • CategoryManager • AvatarHolder • GroupHolder • PluginsHolder • Catalog • IndexesHolder • minfo: MaKaCInfoinstance

  6. Indico_shell (indico-prod) $indico_shell /home/myuser/indico-prod/data/etc/indico.conf + 'MaKaC' : MaKaCbasepackage + 'Conference' + 'Category' + 'ConferenceHolder' + 'CategoryManager' + 'AvatarHolder' + 'GroupHolder' + 'HelperMaKaCInfo' + 'PluginsHolder' + 'Catalog' + 'IndexesHolder' + 'minfo' : MaKaCInfoinstance indico1.0 In [1]: Note: activate virtualenv first

  7. ipython http://ipython.org/ $pipinstallipython Autocomplete: $pipinstallpyreadline $sudoeasy_install -f http://ipython.scipy.org/dist/ readline

  8. Let’s explore

  9. avatars (indico-prod) $indico_shell In [1]: ah = AvatarHolder() In [2]: avatar = ah.getById('0’) In [3]: avatar.getFullName() Out[3]: 'GONZALEZ, Jose Benito’ In [8]: avatar.getEmail() Out[8]: 'jose@xxxcern.ch’ In [9]: av_list = ah.match({'email':'jose@xx'}) In [10]: len(av_list) Out[10]: 1 In [11]: av_list Out[11]: [<MaKaC.user.Avatar at 0x104e61e60>] In [12]: avatar2 = av_list[0] In [13]: avatar2.getFullName() Out[13]: 'GONZALEZ, Jose Benito' Indico users

  10. administrators (indico-prod) $indico_shell In [14]: admin_list = minfo.getAdminList() In [15]: admin_list Out[15]: <MaKaC.accessControl._AdminList at 0x104bc19b0> In [18]: dir(admin_list) [..., 'getList', 'grant', 'isAdmin', 'revoke'] In [19]: admin_list.isAdmin(avatar) Out[19]: True In [21]: admins = admin_list.getList() In [22]: admins Out[22]: [<MaKaC.user.Avatar at 0x104e61e60>] In [23]: admin_list.revoke(avatar) In [23]: admin_list.grant(avatar)

  11. categories (indico-prod) $indico_shell In [23]: cm = CategoryManager() In [25]: root_categ = cm.getById('0’) In [26]: root_categ.getTitle() Out[26]: 'Home’ In [27]: category1 = cm.getById('1’) In [28]: category1.getTitle() Out[28]: '1st categ’ In [29]: category1.getConferenceList() Out[29]: [<MaKaC.conference.Conference at 0x104e69140>] In [30]: category1.getConferenceList()[0].getTitle() Out[30]: '1st event’

  12. conferences (indico-prod) $indico_shell In [32]: ch = ConferenceHolder() In [33]: event = ch.getById('0') In [34]: event.getTitle() Out[34]: '1st event' In [35]: event.getCreator().getFullName() Out[35]: 'GONZALEZ, Jose’ In [38]: event.getContributionList() Out[38]: [<MaKaC.conference.Contribution at 0x104eb2b18>, <MaKaC.conference.Contribution at 0x104eb28c0>] In [39]: event.getContributionList()[0].getTitle() Out[39]: 'contribution 2'

  13. contributions (indico-prod) $indico_shell In [33]: event = ch.getById('0') # we must get the event In [38]: contrib_list = event.getContributionList() In [43]: contrib_list[0] == event.getContributionById(‘0’) Out[43]: True In [45]: contrib1 = event.getContributionById('1') In [46]: contrib1.getTitle() Out[46]: 'contribution 2’ In [47]: contrib1.getSpeakerList()

  14. dbi dbiis preloaded in indico_shell. It’s the DB instance. (indico-prod) $indico_shell In [48]: dbi Out[48]: <MaKaC.common.db.DBMgrinstance at 0x104b89ef0> In [49]: root = dbi.getDBConnection().root() In [50]: root.keys() In [51]: print root.keys() ['conferences’, 'MaKaCInfo', 'rootCategory', 'modules', 'avatars', 'indexes', 'catalog', 'AnnoucementMgr', 'adminlist', 'groups', 'plugins', ..., 'categories'] In [51]: dbi.sync() # gets latest updates from DB In [51]: dbi.commit() # stores updates in DB

  15. Changing data (indico-prod) $indico_shell In [33]: event = ch.getById('0’) In [38]: contrib_list = event.getContributionList() In [45]: contrib1 = event.getContributionById('1') In [46]: contrib1.getTitle() Out[46]: 'contribution 2’ In [47]: contrib1.setTitle(‘new title') In [46]: contrib1.getTitle() Out[46]: 'contribution 2’ In [46]: dbi.commit() # commit makes the change persistent

  16. Questions? Jose Benito Gonzalez http://github.com/jbenito3 @jotabe jbenito@cern.ch

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