[dev] Allow rename and change color of shares

[Jan Schneider]

Please don't top-post.

Zitat von Gonçalo Queirós <goncalo.queiros at portugalmail.net>:

>    Citando Jan Schneider <jan at horde.org>:
>> Zitat von Gonçalo Queirós <goncalo.queiros at portugalmail.net>:
>>> Currently if a user shares a calendar or an address book with someone, the
>>>   other user can't change the share name/color.
>>>
>>>   We are thinking in allowing the user (not the share owner) to give a
>>>   name/color to a share, without actually changing the original value.
>>>   What do you think? Are you interested in this? And if you are, is there
>>>   any path that we should follow?
>>>   Thanks,
>>>
>>>   Gonçalo Queirós
>>  You probably want to store this in a hidden preference per
>> application. And obviously it should default to the share's color.
>>  The most complex part is to allow users to open share dialogs for
>> shares they don't own, but only allow to edit the color, and all
>> that without cracking huge holes in the permissions checking.
>>
> How about making it in a more permanet manner? I was thinking of adding
> two columns to kronolith_shares_users table, to allow storage of this
> information.
>    Of course this could be replicated to every app not only Kronolith.
>    What do you think?

That would make it impossible to change the colors of shares that are  
shared through a user group.
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