I added my considerations regarding the per-table shop select to #93 .
In general I think these table pages, including ProductTable contain too much logic already and should be abstracted further instead of putting more logic per table (DataTable is a good thing already, but I still think the way it is used in the admin still is too verbose and repetitive)

I've just pushed some more commits to make users pick the shop they want to create a product for, after they click on "Create product." Of course, this modal doesn't show up if the user has admin access to just one shop. In this case, the product will be created for this one shop, the same way that it currently works on trunk.

Core team, let me know if you're happy with something like this, or if you'd rather do it in a different way.

@loan-laux Although I'm no longer core team, a modal seems like a fine solution. Adding the shop field at the top of the create form makes even more sense to me, but if memory serves, we might be creating the product behind the scenes before ever showing the create form? I don't remember if there are good reasons why we do that other than the historical needs of the old WYSIWYG product editor. As a general rule, I prefer filling out create form before doing the create GQL call.

Following our discussions and pending design input from @rymorgan, I've gone ahead and built a working prototype of what a global shop selector could look like.

This is what I have right now:

@mikemurray suggested that I introduce a :shopId prefix argument to all the operator URLs, which I did. This required quite a few changes to the way routes are registered, as well as the rendering of the sidebar links. Things on that side might not exactly be the cleanest for now, but honestly I just wanted to get something working quickly in order to demo the concept and validate it first.

For now, it seems to work pretty much everywhere. The only known issue on my end is the media uploader not working, but I'm fixing that as we speak.

Would really appreciate any feedback, first from the UX point of view but also on the technical implementation itself.

@willopez & @chrispotter, let me know if you have any feedback on this. I know it's a big one and it's not necessarily a top priority, but I'd love to know at least if I'm going in the right direction with it.

@loan-laux I think this is headed in the right direction. The dropdown is in a place I'd expect it now. I'm also curious to hear @rymorgan's or @nnnnat's input as well!

@loan-laux at a glance the only thing I'd like to see is the drop down arrow icon have a little more contrast with the background (maybe make it the same color as the text or a similar gray/grey). I won't get a chance to pull this down and test for a few days but that shouldn't be a blocker if the rest of the team is feeling confident in this approach. I'm comfortable with less than ideal UX for the Reaction Admin in the sort term because once we've re-staffed the team to do active development on Reaction a major overhaul of developer & user experience of the Admin is something we plan on tackling within the next 6-12 months.

Thanks for your feedback guys.

@nnnnat, fully agree with you on potentially breaking things on reaction-admin since it'll be replaced soon and it's currently labeled as beta. Hopefully this PR can serve as a proof of concept to re-implement multi-shop in a better way afterwards. It still needs to be clean, of course, but maybe we can live with some limitations knowing that it won't be used for long.

Let me know when you both get a chance to pull and try it! I'm really eager to get feedback on this. Also, will change the color of the arrow on the dropdown as requested.

Thanks @loan-laux for this exclusive PR, it certainly would help us alot at Craflo for time being. We created multiple clones of reaction-admin (torned & mold various major parts of UI) for different set of roles such as category manager, vendor/seller (shop manager), affiliate marketers, accounts support team. We were figuring out a temporary but a quick way for manager's reaction-admins to get easy on UI for controlling multiple shops which comes under that manager.

Glad this helps, @wittycodes!

@nnnnat I've just made the dropdown arrow the same color as the text. Let me know if you get a chance to try out the PR!

@kieckhafer pinging you on here as requested on Slack. Let me know what you think!

Hey @loan-laux, I'm not seeing any shop dropdown on the product grid page. I have two shops, and both shopIds are in my adminUIShops array.

I do have two products, one for each store, and I'm only seeing the product for the first / default store, so a filter is working on the table, I just don't see a way to choose the store.

Is there something I'm missing, do I need to enable something?

Hey @kieckhafer, as I said in this PR's discussion and following everyone's feedback on the first implementation, I dropped the idea of a per-table selector and implemented a global shop selector at the top-left corner of the UI. You should see an arrow point down next to your shop name. Can you see it?

@loan-laux sorry should have expanded my screen shot and comment, no i don't see that either:

I'm on c93ed2d96 which seems to be your latest commit.

Just got caught up on the discussion and commit diffs. Looks OK to me. I'm going to try to get it working locally to verify functionality, but if that goes well will approve to merge.

Wow, that was quick. Thanks @kieckhafer @focusaurus for the review. Are you guys okay with the way I implemented the URL prefix at the route level? I thought this to be a bit too rough around the edges, but I guess it can be improved on later on.

@loan-laux it works! this is still tagged beta so if it works and helps, I think getting it out there for other to try and iterate on is the best thing we can do. we don't have another solution at the moment so let's let the community play around and see if it fits everyones needs.

+1 on landing this. It's a big PR and been open for months so best to get it landed and then continue forward with smaller tweaks. Thanks for this epic contribution, @loan-laux !

in our custom Admin UI, we do similar: one shop selector top-left that is selected under Settings. Then all panels of settings apply to that shop, and all other screens (products, orders etc) as well. We store selected shop in localStorage so it is persistent and if localStorage is empty we just select the first shop as default so user does not need to select something before seeing data.