nextcloud-orm 0.1.0

A simple object relation model (ORM) wrapper for the nextcloud api (ocs)

nextcloud-orm

Wouldn't it be nice to programmatically manage your nextcloud users and groups with a django-like Object-Relation-Model (ORM), instead of interacting with rather clumsy nextcloud api calls?

import nextcloud_orm
from nextcloud_orm.models import NextcloudUser, NextcloudGroup, NextcloudGroupFolder

# establish connection by using environment variables
nextcloud_orm.connect()
# alternative
#nextcloud_orm.connect(endpoint=YOUR_NEXTCLOUD_URL, user=YOUR_NEXTCLOUD_USERNAME, password=YOUR_NEXTCLOUD_PASSWORD)

# Create a new nextcloud user "Somebody". Attributes like the email can be directly set.
u = NextcloudUser(name='Somebody', password='some_$ecure_password')
u.email = '[e-mail]'
u.save()

# Create a group "Some Group" if it does not exist already and add "Somebody" to the group
g = NextcloudGroup.objects.get_or_create(name='Some Group')
g.users.add(u)
g.save()

# Create a groupfolder "development" with 2GB quota and make the folder
# accessible for the previously created group without sharing permission
f = NextcloudGroupFolder('development', quota=2 * 1024**3)
f.groups.add(g, share=False)
f.save()

This package wraps the lower level module nextcloud-api-wrapper with a class based ORM.

Supported functionalities

This module essentially supports the functionalities that the nextcloud ocs offers for users, groups and groupfolders (the groupfolders app needs to be installed in nextcloud!). Apart from those, this module wraps installed nextcloud apps by NextcloudApp

If you need other api functionalities, you may access the more complete lower level api by:

from nextcloud_orm.managers import NextcloudManager

# Only accessible after successful connection to nextcloud
nextcloud_orm.connect()

# Lower level api
api = NextcloudManager.api

Core functionallities

Currently there are four nextcloud object models: NextcloudUser, NextcloudGroup, NextcloudGroupFolder and NextcloudApp.

Each of them can be initialized with given arguments and can be syncronized to nextcloud by using NextcloudObject.save():

# unsaved/not synchronized yet
u = NextcloudUser(name='username', email='[e-mail]', displayname='User Name')

try:
    # synchronize user to nextcloud
    u.save()
except NextcloudUser.AlreadyExist as e:
    # the user already exists
    # the lower-level api request can be accessed through 'e.request'
    pass

If the object already exists, an AlreadyExist exception will be raised.

Fetching objects from nextcloud

To access the objects that are already stored, you should use the NextcloudManager instance that is available via NextcloudObject.objects.

In many cases one just wants interact with a nextcloud object, e.g. changing a users email address. To query a single object from nextcloud use NextcloudObject.objects.get()

    # get preexisting user by name
    u = NextcloudUser.objects.get(name='username')
    
    # get preexisting user by email
    u = NextcloudUser.objects.get(email='[e-mail]')

To query every object from nextcloud use NextcloudObject.objects.all(), if you are just interested in a few objects with some particular attributes you may use NextcloudObject.objects.filter()

    # get preexisting user by name
    users = NextcloudUser.objects.all()
    
    for u in users:
        print(u.displayname, u.email)
        
    # filtering example
    unlimited_quota_users = NextcloudUser.objects.filter(quota=None)

A very handy function is get_or_create(defaults, **attributes), which creates the queried user if the user does not exist yet.

    defaults = {'email':'[e-mail]', 'password':'some_$ecure_password', 'displayname':'User Name'}
    u = NextcloudUser.objects.get_or_create(defaults, name='username')

Accessing related objects

One of the nicest features is that you can access the related objects of an instance via RelatedNextcloudManager attributes, e.g. NextcloudUser.groups handles the group-membership of the user.

    u = NextcloudUser.objects.get(name='username')

    try:
        g = u.groups.get(name='admin')
    except NextcloudGroup.DoesNotExist as e:
        # the user is not a member of 'admin'
        print('The user is not an admin')
        
    # direct checking for containment is also possible
    u.groups.contains('admin')

    # get all groups of the user
    groups = u.groups.all()

The relations between the models can be modified by using add(), remove() and set():

    u = NextcloudUser.objects.get(name='username')

    g = NextcloudGroup('new group')
    g.save()
    
    # add a new group membership
    u.groups.add(g)
    # alternative
    u.groups.add('new group')
    u.save()
    
    # remove group membership, e.g. to disable admin access
    g = NextcloudGroup.objects.get('admin')
    u.groups.remove(g)
    
    # (shorter) alternative
    u.groups.remove('admin')
    u.save()
    
    # setting the related attribute to a list is also possible
    u.groups.set([g])

Mapped relations:

• group-membership: NextcloudUser.groups and NextcloudGroup.users
• group-subadmin: NextcloudUser.subadmin and NextcloudGroup.subadmins
• group-folder: NextcloudGroup.folders and NextcloudGroupFolder.groups