1 files changed, 47 insertions, 0 deletions
diff --git a/doc/examples/chained.py b/doc/examples/chained.py
new file mode 100644
index 0000000..3418844
--- /dev/null
+++ b/doc/examples/chained.py
@@ -0,0 +1,47 @@
+#!/usr/bin/python
+
+import dbus
+
+from gi.repository import GLib
+
+from aptdaemon.client import AptClient
+from aptdaemon.defer import inline_callbacks
+from aptdaemon import policykit1
+
+loop = GLib.MainLoop()
+
+def on_finished(trans, exit):
+    loop.quit()
+    print exit
+
+@inline_callbacks
+def main():
+    repo = ["deb", "http://packages.glatzor.de/silly-packages", "sid", ["main"],
+            "Silly packages", "silly.list"]
+    aptclient = AptClient()
+    bus = dbus.SystemBus()
+    name = bus.get_unique_name()
+    # high level auth
+    try:
+        # Preauthentication
+        action = policykit1.PK_ACTION_INSTALL_PURCHASED_PACKAGES
+        flags = policykit1.CHECK_AUTH_ALLOW_USER_INTERACTION
+        yield policykit1.check_authorization_by_name(name, action, flags=flags)
+        # Setting up transactions
+        trans_add = yield aptclient.add_repository(*repo)
+        trans_update = yield aptclient.update_cache("silly.list")
+        trans_inst = yield aptclient.install_packages(["silly-base"])
+        yield trans_inst.set_allow_unauthenticated(True)
+        # Check when the last transaction was done
+        trans_inst.connect("finished", on_finished)
+        # Chaining transactions
+        yield trans_update.run_after(trans_add)
+        yield trans_inst.run_after(trans_update)
+        yield trans_add.run()
+    except Exception as error:
+        print error
+        loop.quit()
+
+if __name__ == "__main__":
+    main()
+    loop.run()