Hello Dannon,

You are right, I've just tried it and it is extremely lighter than my previous 
solution.
I've successfully made a teacher share a complete history with her students and 
vice-versa a student sharing its history with teacher.

Cordialement / Regards,
Edgar Fernandez

De : Dannon Baker [mailto:dannon.ba...@gmail.com]
Envoyé : January-16-14 8:24 AM
À : John Chilton
Cc : Fernandez Edgar; galaxy-...@bx.psu.edu
Objet : Re: [galaxy-dev] creating a hierarchy of students teachers and courses

Would direct-sharing histories work as a significantly lighter weight solution? 
 Each student could just create a history named "DannonBaker_SharedResults" or 
the like, share it directly with their instructor, and put via dataset copy 
and/or perform any work to be shared in that?

-Dannon

On Wed, Jan 15, 2014 at 11:21 PM, John Chilton 
<chil...@msi.umn.edu<mailto:chil...@msi.umn.edu>> wrote:
On Wed, Jan 15, 2014 at 12:03 PM, Fernandez Edgar
<edgar.fernan...@umontreal.ca<mailto:edgar.fernan...@umontreal.ca>> wrote:
> Hello John,
>
> Thank you very much for your answer!
> It's sounds logical and do-able.
>
> However, I've thought of the following and I would like your opinion about it:
> (this is to create a workspace for each student which is accessible only by 
> them and their teacher)
> 1. create a data library for each user (student, teacher and class)
> 2. the data library for each student will have the following permissions:
>         a. modify library item          = student private role (email address)
>         b. access library               = student private role (email 
> address) and teacher private role
Here is where this starts to break down. I think roles do not work the
way most people I talk to about them find intuitive (myself included).
When determining if action X can be performed on a library item - a
user must belong to an intersection of all of the roles not a union of
them. Put another way - each role is restricting the universe of
people that can perform action X on an item not expanding it.

So I am pretty sure Galaxy will not even let you specify this. The
workaround is to create a new role for each student and teacher
combination. This joint role would be the access role and all of the
rest would be the student private role.

>         c. add library item             = student private role (email address)
>         d. manage library permissions   = student private role (email address)
> 3. the data library for each teacher will have the following permissions:
>         a. modify library item          = teacher private role (email address)
>         b. access library               = teacher private role (email address)
>         c. add library item             = teacher private role (email address)
>         d. manage library permissions   = teacher private role (email address)
> 4. the data library for each class will have the following permissions:
>         a. modify library item          = teacher private role (email address)
>         b. access library               = teacher private role (email address)
>         c. add library item             = teacher private role (email 
> address) and all students privates roles
I think add library item has to be a subset of access library. So I
suspect this will not work (though feel free to try).

A work around here might again be to create a new data library for
each combination of student and teacher. This is obviously more
overhead for the teacher though :(.

-John

>         d. manage library permissions   = teacher private role (email address)
>
> Now, here's the one million dollar questions:
> Will the permission 4c permit to every student to drop some work into the 
> class workspace but not cheap by seeing the work of another student ?
>
> Cordialement / Regards,
> Edgar Fernandez
>
>
> -----Message d'origine-----
> De : jmchil...@gmail.com<mailto:jmchil...@gmail.com> 
> [mailto:jmchil...@gmail.com<mailto:jmchil...@gmail.com>] De la part de John 
> Chilton
> Envoyé : January-15-14 12:12 PM
> À : Fernandez Edgar
> Cc : galaxy-...@bx.psu.edu<mailto:galaxy-...@bx.psu.edu>
> Objet : Re: [galaxy-dev] creating a hierarchy of students teachers and courses
>
> Galaxy can do some these and maybe not others. This is a really big topic, 
> and I hope you let us all know how progress on this goes - it is a really 
> interesting use case. I can comment a little on each part of this, but they 
> are all connected and there are different ways to approach each of these 
> things.
>
> On Tue, Jan 14, 2014 at 12:03 PM, Fernandez Edgar 
> <edgar.fernan...@umontreal.ca<mailto:edgar.fernan...@umontreal.ca>> wrote:
>> Hello galaxy team,
>>
>>
>>
>> First and foremost, I would like to thank you for your assistance with
>> my galaxy installation with apache proxy.
>>
>> It works very well.
>>
>>
>>
>> Secondly, I would like your help with creating users, groups, roles
>> and permissions that would allow me to:
>>
>> 1.       differentiate a student from a teacher
>
> Are you creating these accounts inside of Galaxy or using an external 
> authentication method?
>
> Because if your are creating these accounts yourself - I would suggest using 
> naming scheme to distinguish these:
>
> std_cls_lastname
> teach_cls_lastname
>
> Another idea to consider is to make all teachers admins. This provides a lot 
> of extra functionality that can cover some additional requirements below and 
> can serve as the basis for differentiating.
>
>>
>> 2.       differentiate a student in course A or in course B
>
> You could use a naming scheme, or your could create a group and role for each 
> course. It looks like there is an API for managing groups and roles. This can 
> help automate some of this - it would be very laborious to do this through 
> the UI I imagine.
>
>>
>> 3.       teachers having read access to students' work
>
> This one is why I would give the teachers admin access - I think they could 
> impersonate the students to access their work (set allow_user_impersonation = 
> True in universe_wsgi.ini). It would mean that every teacher would have full 
> access to every students work - if this is a problem you might want to 
> consider standing up a Galaxy instance per class - there is some up front 
> overhead with this - but it would make cleaning things up really easy.
>
> If these aren't realistic solutions, I think producing course documentation 
> describing for students how to manually share their work with teachers is 
> probably the best bet. Any user can share a history with any other user or 
> produce links and e-mail these to the teacher.
>
>>
>> 4.       teachers sharing with students
>
> I would look at having the teachers setup pages for individual courses or 
> lesson plans. These can be made public and students would be able to import 
> histories, datasets, and workflows right in from these. If more targeted 
> sharing is needed again I think the best bet right now might just use 
> Galaxy's history sharing capabilities.
>
>>
>> Right now, I just have created users. There is no group or roles or
>> permissions or datasets.
>>
>>
>>
>> On another note, how can I disable the account of one specific user or
>> a whole group ?
>
> To enable this functionality for individual users and groups in the UI you 
> need to set allow_user_deletion to True in universe_wsgi.ini. I don't think 
> deleting a group will delete all the users in it though.
> This can be automated either by extending the API to support deleting users 
> and then writing a script to iterate over a group and delete all the users or 
> by writing a script that talks to the database directly or using 
> scripts/db_shell.py (which provides an external script access to the Galaxy's 
> data connection and model classes).
>
> Hope this helps,
>
> -John
>
>>
>>
>>
>> Cordialement / Regards,
>>
>>
>>
>> Edgar Fernandez
>>
>> System Administrator (Linux)
>>
>> Direction Générale des Technologies de l'Information et de la
>> Communication
>>
>> (  Bur. : 1-514-343-6111<tel:1-514-343-6111> poste 16568
>>
>>
>>
>> Université de Montréal
>>
>> PAVILLON ROGER-GAUDRY, bureau X-218
>>
>>
>>
>>
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