Help with understanding collections and user management
Hallo, I have few questions while trying to get used to and use BaseX database in our solution. A) Could be empty collection in a database created? This query db:add("MyDBName","","/NewCollectionName") perforemed in GUI creates collection NewCollectionName but copies there also bunch of other things used as example… I tried also to ADD a xml file to NewCollection which works , new collection was created, but when I deleted that file, collection disappered also ! B) Is it possible to grant various users different access rights to different collections under one database ? Eg. granting access rights to groups of users and/or creating roles ? Regards and thanks for your good job, Jan Matuszek
Hi Jan, Welcome to the list (glad to hear the registration finally worked out).
A) Could be empty collection in a database created? This query db:add("MyDBName","","/NewCollectionName") perforemed in GUI creates collection NewCollectionName but copies there also bunch of other things used as example…
In BaseX, all collections are of implicit nature: A collection will automatically be created once you add a file as resource to the collection path or name. If you address a collection without contents, you will simply get no results: * Create database with initial document: db:create('db', <x/>, 'collection1/input.xml') * Return all documents in the specified collection: db:open('db', 'collection1')
B) Is it possible to grant various users different access rights to different collections under one database ? Eg. granting access rights to groups of users and/or creating roles ?
Access rights can only be granted to databases. However, databases are very light-weight in BaseX, so the usual modus operandi is to create multiple databases, which can all be addressed by a single XQuery expression. See http://docs.basex.org/wiki/Databases for more information. Hope this helps, Christian
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Christian Grün -
kalibuk＠centrum.cz