udacity_conference: A Python repository from edmondliang

App Engine application for the Udacity training course.

Products

Update the value of application in app.yaml to the app ID you have registered in the App Engine admin console and would like to use to host your instance of this sample.
Update the values at the top of settings.py to reflect the respective client IDs you have registered in the Developer Console.
Update the value of CLIENT_ID in static/js/app.js to the Web client ID
(Optional) Mark the configuration files as unchanged as follows: $ git update-index --assume-unchanged app.yaml settings.py static/js/app.js
Run the app with the devserver using dev_appserver.py DIR, and ensure it's running by visiting your local server's address (by default localhost:8080.)
(Optional) Generate your client library(ies) with the endpoints tool.
Deploy your application.

For Speaker, implement speaker entity for storing speaker, which makes easier to identify which person instead of using name in property.
For Session, implement session entity and ancestor key by conference key, which makes the conference as parent for making strong consistency queries.

getComingSessions() It is for getting 10 coming sessions
getActiveSpeakers() It is for getting top 10 speaker who speaks for more than 1 session

Question: If the user does not like "workshops" and does not like to go sessions after 7pm, How would you handle like that?
Problems: For Google ndb, You can not perform more than one inequlity filter in one query.
Solution: Transform inequlity filter to equlity filter. Transform typeOfSession != "workshops" to typeOfSession.IN(type_of_list_you_want_go)
Problem solved!