How Do I Paginate My Data? | Get to know Cloud Firestore #7

Thanks. Would be great to have a new video focusing more in pagination for realtime cases, like chat apps, for instance. It's kind of complicated to find help online for a consistent way to implement pagination with real-time updates with Firestore

what if i use streams and streambuilder and list.view builder, do i still need to paginate ?

Great explanation! Thanks

hmm, use start instead offset. got it

Please add getLength() method to collections. Otherwise, pagination feels like walking down stairs blindfolded

nice

Thanks...very informative

Very nice.
But how about jump pagination, imagine i'm on page 3, and want to go to page 7, how do i implement that? there is a function to "jump x docs"?

Where can I get an edible bear like in the video?

these videos are really really good and instructional, thanks for them

I believe the key essence here is, the option you choose is dependent on how real-timeliness you want your app to be!!

I still dont know how to do it , I only learned how not to do it

i just hope that firebase would find a solution for better pagination and dynamic queries, but as of now it's not one of the best for obvious reason.

A downloadable Xcode sample project would have been nice.. You spoke on how to use it BUT didn't show the specifics concerning snapshot/listener code implementation... Disappointed.

Best teacher end of story

Amazing

Brilliant as ever

whereEqualTo cannot be used with orderBy!! this video has mistake at [7.57]

Remember that incremental (limit) pagination breaks if you have persistence on, queries might trigger from old cached values. Say you query for 10 elements, you might get 2 element from older cache.

How to count documents without being charged

you missed one thing, to paginate without infinite scroll we need to know the amount of records the search has, so we can know the amount of pages, how we can do that?

Brain: you are supposed to keep watching this tutorial

Me: I WANT THIS GIANT GUMMY BEAR

Where doesn't seem to work with pagination. Is there a way to combine a where clause and pagination?

super cool and useful!

why does everything feel like a one big hack with Cloud Firestore?

Hi! I have approximately 4.000 records on my firestore and I am paginating it by 20.But what if I am at the beginning and I want to search for an item that hasn't been loaded yet?How would I handle this situation?Thank you!

This will be a big issue for most of the companies using Firestore, I was NOT expecting this.

I have a question.

If my documents update index real time, What happen if I separate my collection to 2 collections ?

First collection keep data and second keep only index but same key.
Then I query first 500 keys from second collection and keep in array call "keys_array".
Then I query data from first collection that same key in array 1 by 1 every 20 time when user scroll to the bottom of page.
So I can manage pagination by myself and documents will not swap order in user's screen.

And if this work, it can make numerical paginations.

Because only index that's a number is more low cost than full data of document.

What is `whereField()` ? :D why not just `where()` ?

When we're paginating and we're using .startAfter(document[field]) are we supplying the document Id here or the entire document?

How can we achieve the pagination in PHP language.

Well, if the reads from database is scalling to the loaded documents+new documents instead of just new documents (already loaded documents not need load again) then is lower than the original recyclerView and RecyclerView FirebaseUI... this is very bad idea (you will lost realtime updates and your reads from database increases exponentially) .-.

this is the most confusing function of firestore .....

Great video!!! thanks

FirebaseUI Pagination not can capturate the Snapshot Document

I don't have Money

broo I spent a lot of time "paginating" as documentation says then I realised that I can use 'offset'... dammit

Imagine that gummy bear made out of rum

This tutorial is misleading. There is no pagination. As after wasting half a day, there is still a very hard thing to do to just get the items with index 20 to 40 as they are in a document.

Hi, I have a problem with limit, It always bring 20(for example), when only it is supposed to bring 10 elements. Yes ther another 10 are duplicateds

Bring 'offset' to the front end!!!

How do we know how many pages have using this method?

Ah, my loyal friend MySQL and LIMIT 0,20

did the api change ? nothing of this works currently

Thanks man!

This pagination this is really cool, not tedious and very efficient. Nice work Google Firebase Team!

Wow sorry guys but this is terrible, we need proper paging...