ILIAS open source Forums

Hello,
I would like to know if it is possible for students to upload files that can only be downloaded by the tutor and not by the other students in the group.
If it is possible, can you tell me how to set the corresponding permissions.
Thank you.

Kneipp,

In the role template il_crs_member remove the File.Download check.
In the course make sure to give permission for upload.

Thank you very much for your answer, but I don't understand what I have to do. Can you direct me in more detail. Thank you.

Hello,

Hi!

To create such a kind of "postbox" you have to do the following steps:

1. Create a folder in a group or course

2. Open the Permission tab of the folder and change the permissions of the role Member in the following way:
2.1. Stop inheritance
2.2. Give permission "Create files"
Now save the permission settings.

3. The colour of the role title Member will change to blue and you can enter the role permissions of this role. There you have to take away all permissions for the file object and save the settings. That's it!

Because of the owner principle in ILIAS, the user that uploads a file still sees the file and can edit it. But all other users do not see this file due to the missing VISIBLE and READ permission.

- Matthias -

keneipp,

The difference between the two solutions is that in Matthias solution you create a folder for a specific course and they you allow your students to upload in that folder. So you're working on course level.

My solution does not require a folder but will automatically effect all new courses you create, så choose wisely

You would
Navigate to Administration -> Roles
Filter templates
Look for the il_crs_member and edit it.
Find section File and remove the check mark.

Another suggestion is you look at the new Exercise object which might be what you really want.

Hello Godvad and Matthias,

I prefer Matthias' solution because I don't want to have permission problems with the new courses I create for other teachers. I finally convinced my French university into using Ilias but as I don't speak German, I am having a lot of problems understanding the whole permissions problem

Matthias, do you think you could explain to me again what I should do. I've asked for help from a friend in Germany who knows more about Ilias than I do, but he didn't manage either.

I understand "Stop inheritance". Does "give permission "Create files" mean I should check "file" in the list that contains "folder", "chat", etc.?

I am not sure what "you have to take away all permissions for the file object" means. Does that mean that I uncheck "Read", "write", etc.?

Rosemary Kneipp

Hello Rosemary,

Unfortunately, we do not have a French documentation yet. But if you need some support in French you can contact our friends from ILIAS France.

Concerning your questions:



That's good. Because some people do not know what this is meaning. The reason why you have to stop inheritance is, that you want to define a local permission policy only for the current folder (and not - as Jesper suggested - for all folders in courses and groups).



Yes! On the permission screen for the current object there are permissions (checkboxes) for "General operations", "Special operations", "Permission settings" and "Create new objects". In the last mentioned section you define which role is allowed to create which new objects in the current folder. And because you want to allow students to add new files to a folder, you have to give them the permission for this by clicking the checkbox "File" and save the setting.



You are right again! You do not want that users see the files of other users. So they should not have the permission "FILE IS VISIBLE" and "DOWNLOAD FILE" in the permission settings of the role MEMBER. These permissions are usually given to course and group members by default. So you have to change them. And you can do this only when you BREAK INHERITANCE before. Because otherwise the title of the MEMBER role on the permission screen is not becoming blue and a link. Now click on the link "Course member" or "Group member" to enter the permission settings of this role. These permission settings are used by ILIAS to define the permissions of new created objects in this folder (and all sub-objects too). Now, if you change the settings for "FIle", all new created files in this folder get the permissions according this definiton - which means in your scenario: Course/Group member do not see the files and cannot download them. And that's what you want and what a postbox is made for. Only Course Tutor an Course Administrator are able to download the files.

Because ILIAS is respecting ownership of objects, the user that uploads a file is always seeing this file in the folder. Ownership is overwritting the permission settings.

I hope you understand what I tried to describe.

A bientôt,

Matthias

Hello Matthias,

If I could have the information about permissions in English, that would be perfect (I am English speaking). I haven't been able to find it so far. It's only because I asked a colleague who speaks German that I was able to find this forum. Otherwise, you would have had the pleasure of helping me a long time ago!

I contacted the person in charge of the French forum but he doesn't really have time to help me and doesn't have anything but basic user information in French. In his system, he sets up everything for the teachers ahead of time, from what I understand.

I think I must be missing some key information about the permission system because I just can't get the result I'm looking for.
Is it the order in which things are done? How, for example, do you "change the settings for "File"?

Thank you for your precious help.

Rosemary

Hello Rosemary,

sorry for not replying earlier. These are busy times

Do you know the chapter about the role permission system in our online documentation?

See http://www.ilias.de/docu/goto.php?target=pg_27974_1269&client_id=docu

This might already help to understand how ILIAS is handling permissions.



The order is not important. But to avoid a lot of clicks, I am always changing permissions in this order:

1. Break inheritance of a role (only needed for container objects like categories, courses, groups and folders)
2. If «break inheritance»: Changing the role permissions (click on role title to go there) to implement a new permission policy for this and all sub-objects. And - if needed - change existing objects (otherwise changes would only affect newly created objects).
3. If no container object: Change the object's permission (so stay on the Permission screen) and save them all - no matter if you first take away VISIBLE or any other standard operation and click on (Create) FILE in the Create section of the screen. You only need to save the settings at the end. Otherwise they are not stored in ILIAS.

That's it.

What problem do you still have with the permission settings? You can also send me a mail with a screenshot of the permission screen to get an idea what might be wrong: info@ilias.de

Best, Matthias

Hello Matthias,

I have been away for a week so I am going to look into my permission problem this afternoon and get back to you.

Thank you ever so much

Rosemary