Sort order in merged views (folders or "unread") does grouping by feed ressource and does not sort by date only

[rankerson]

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Explain the Problem

I want to view my new items in the newsfeed (either in the overview "unread" or clicking on a folder, which includes several feeds. My expectation would be, that all collected feed items (of all feeds in the respective folder or all feeds, if the view "unread" is choosen) are sorted by date (either ASC or DESC depending on the sort order selected in the settings).

I see now, that the feed items are sorted by date in the corresponding sort order, BUT grouped by feed. So I see first all items of one feed sorted by date and then the items of the next feed sorted by date. My expectation is that all feed items are sorted by date w/o grouping by feed. If my expectation does not fit the idea I can also create a pull request.

Steps to Reproduce

Explain what you did to encounter the issue

1. Create a subfolder with twi different feed sources.
2. Click on the folder and check the sort order of feed items and if they are grouped by feed ressource

System Information

• News app version: 24.0.0
• Nextcloud version: 26.0.7
• Cron type: (system cron/python updater/...) system cron
• PHP version: 8.2.11
• Database and version: mysql, 11.2.2
• Browser and version: Chrome 123.0.6312.86
• OS and version: Linux 6.1.0-17-cloud-amd64 x86_64

I skipped the following log-Output as no error message occured and I guess it is just a wrong resp. unexpected behaviour. If additional logs are needed, do not hesitate to ask for it.

[Grotax]

Hi, I think this grouping is a side effect of the collection time, each feed is fetched one by one and added to the database.

The items are then sorted by the date they were added. And if I remember right this is done because the date that the feeds use is not very reliable.

But I'm not a 100% sure. The logic is in the data mappers or the service for items

[rankerson]

Hi, ah, ok. Understand this, but does it makes sense? I understand, that sometimes the date from the feed itself might not be appropiate, but is this not the exeption?

Cheers
Ranki

[Grotax]

I guess in the end it would be best to leave this up to the user.

Currently the main topic is that the UI is rewritten with vuejs and that the missing features are added and the bugs are fixed after that we could think again about item sorting

[wofferl]

The problem here is that the frontend load 40 items at a time and get it sorted by item id from the backend. In merged views sorting by date would mean that items that are loaded later can be sorted above the actual items viewed.
Sorting by date seems difficult, because you either have to load all items for a view or the backend have to be rewritten to give the items sorted by date, which I think would not that easy.