1. Context … for projects and MyDB
Kapteyn Astronomical Institute, Wednesday, 19 April 2006

2. Context Handling large amounts of data Work together
Work in a consistent way
Experiment with source code
Know what data and code was used
Keep data private
Make data public
Throw away data

3. Context Organize in Projects, that have
A name and description
Users
Default privileges
Responsible - privileged – users
New objects are automatically part of the currently active context
Tools to safely delete or publish data
Be aware of dependencies for history tracking

4. Setting and getting projects
from astro.database.Context import context
context.set_project('WORKSHOP2005')
context.set_project('OCAM ILT')
context.get_projects()
context.get_current_project().name
CALL AWOPER.AWSECURITY.SET_PROJECT('OCAM ILT')

5. Migrating MyDB to other Project
Everything
Toolbox/dbmigrateall.py AWMJACKSON KIDS
Single object, including dependencies
sl = SourceList.name.like('*TEST*')[0]
context.migrate(sl, 'VESUVIO')

6. Deleting MyDB Delete ALL objects that belong to MyDB project
Toolbox/dbdeleteall.py AWMJACKSON
Includes files, which take up most space
No dependency check required

7. Projects Like MyDB, but for more users.
Delete all data that is private to KIDS
Toolbox/dbdeleteall.py KIDS
Making data public, i.e. update privileges
context.update_privileges(obj, 3)