Add function to deactivate users.

lib/pleroma/user.ex

@@ -334,4 +334,9 @@ def local_user_query() do
       where: u.local == true
   end
 
+  def deactivate (%User{} = user) do
+    new_info = Map.put(user.info, "deactivated", true)
+    cs = User.info_changeset(user, %{info: new_info})
+    Repo.update(cs)
+  end
 end

test/user_test.exs

@@ -325,5 +325,11 @@ test "get recipients from activity" do
     assert user in recipients
     assert addressed in recipients
   end
-end
 
+  test ".deactivate deactivates a user" do
+    user = insert(:user)
+    assert false == !!user.info["deactivated"]
+    {:ok, user} = User.deactivate(user)
+    assert true == user.info["deactivated"]
+  end
+end