Initializing db in case of Relstorage and solving sharing_post functi…

…on to not class aware

src/plone.server/plone/server/api/content.py

@@ -212,15 +212,15 @@ async def sharing_get(context, request):
 
 @service(context=IResource, method='POST', permission='plone.ChangePermissions',
          name='@sharing')
-async def sharing_post(self):
-    data = await self.request.json()
-    prinrole = IPrincipalRoleManager(self.context)
+async def sharing_post(context, request):
+    data = await request.json()
+    prinrole = IPrincipalRoleManager(context)
     if 'prinrole' not in data:
         raise HTTPNotFound('prinrole missing')
     for user, roles in data['prinrole'].items():
         for role in roles:
             prinrole.assignRoleToPrincipal(role, user)
-    await notify(ObjectPermissionsModifiedEvent(self.context))
+    await notify(ObjectPermissionsModifiedEvent(context))
 
 
 @service(context=IResource, method='DELETE', permission='plone.DeleteContent')

src/plone.server/plone/server/factory.py

@@ -397,6 +397,20 @@ def make_app(config_file=None, settings=None):
                     dsn = "dbname={dbname} user={username} host={host} password={password} port={port}".format(**dbconfig['dsn'])
                     adapter = PostgreSQLAdapter(dsn=dsn, options=options)
                 rs = RelStorage(adapter=adapter, options=options)
+                db = DB(rs)
+                try:
+                    conn = db.open()
+                    rootobj = conn.root()
+                    if not IDatabase.providedBy(rootobj):
+                        alsoProvides(rootobj, IDatabase)
+                    transaction.commit()
+                except:
+                    pass
+                finally:
+                    rootobj = None
+                    conn.close()
+                    db.close()
+                rs = RelStorage(adapter=adapter, options=options)
                 db = RequestAwareDB(rs, **config)
                 dbo = Database(key, db)
             elif dbconfig['storage'] == 'DEMO':