Fixed pagination issues on item mapper

[alexandrevryghem]

References

• Fixes Mapped items do not paginate correctly #2613
• Fixes Item Mapper hangs when a search is run #2953

Description

Fixed the Item Mapper not paginating the items correctly. Because the page config was improperly configured the request to the backend did not include the page size & the current page. This lead to all items being displayed in the Item Mapper & the different pages always displaying the same result.

Additionally this PR also improves the performance of the item mapper page by saving the observables from canSelect & getSelected in a new list in order to prevent those methods from being called every time change detection is triggered.

Instructions for Reviewers

List of changes in this

• Ensured the pagination options were correctly passed to the backend in CollectionItemMapperComponent.
• Created DSpaceObjectSelect which will contain the Observables from canSelect & getSelected in order to prevent those Observables from being recreated each time change detection is triggered.
• Removed the @Input() pageInfoState from PaginationComponent since it's not used and almost all the components who use it, pass incorrect data to it.

Guidance for how to test or review this PR:

• Add a total of 11 items to a certain collection
• Create a new collection and go to Edit Collection > Item Mapper
• Map those 11 items to this new collection and check that the pagination in Browse mapped items is fixed

Checklist

• My PR is small in size (e.g. less than 1,000 lines of code, not including comments & specs/tests), or I have provided reasons as to why that's not possible.
• My PR passes ESLint validation using yarn lint
• My PR doesn't introduce circular dependencies (verified via yarn check-circ-deps)
• My PR includes TypeDoc comments for all new (or modified) public methods and classes. It also includes TypeDoc for large or complex private methods.
• My PR passes all specs/tests and includes new/updated specs or tests based on the Code Testing Guide.
• If my PR includes new libraries/dependencies (in package.json), I've made sure their licenses align with the DSpace BSD License based on the Licensing of Contributions documentation.
• If my PR includes new features or configurations, I've provided basic technical documentation in the PR itself.
• If my PR fixes an issue ticket, I've linked them together.

[github-actions]

Hi @alexandrevryghem,
Conflicts have been detected against the base branch.
Please resolve these conflicts as soon as you can. Thanks!

[kanasznagyzoltan]

My colleague (Sutya Miklós (QULTO)) has tested it yesterday:
For him it did not work properly on his local installation:

1. Logged in as admin user. Clicked on Edit → Collection. Selected a collection.
2. Clicked on Item Mapper → Map New Items
3. Entered “***” as Search query.
4. The results come up, but the whole page freezes and does not respond.
5. This happened in locally run DSpace and on sandbox.dspace.org as well

[alexandrevryghem]

@kanasznagyzoltan: This is another issue see #2953 but I already created a fix for this and was planning to contribute it to this PR later today

[kanasznagyzoltan]

@kanasznagyzoltan: This is another issue see #2953 but I already created a fix for this and was planning to contribute it to this PR later today

Thank you for the info!

[github-actions]

Hi @alexandrevryghem,
Conflicts have been detected against the base branch.
Please resolve these conflicts as soon as you can. Thanks!

[Leano1998]

I tested it in a local environment and it works perfectly. Thanks @alexandrevryghem !

[tdonohue]

👍 Thanks @alexandrevryghem ! I've also verified this fixes the issues with the ItemMapper (both the hanging issue & pagination). Tested CollectionMapper and other pagination based components as well to make sure there are no side effects. Didn't find any.

[tdonohue]

I've realized the original bug ticket (#2613) was for 7.6.x, so we may need to find a way to port this to 7.6.x if possible. Adding the port to dspace-7_x label.

[dspace-bot]

Backport failed for dspace-7_x, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin dspace-7_x
git worktree add -d .worktree/backport-2642-to-dspace-7_x origin/dspace-7_x
cd .worktree/backport-2642-to-dspace-7_x
git switch --create backport-2642-to-dspace-7_x
git cherry-pick -x 45e8977db7d34d7b0684c16f92e9e917f6ac4579 da31c4f253ecc504e65ebc3ebe18b4ce2a0960a2 59197cff2d663240cb771d58d1f01cf97d78c3b4 268d2e54fcb0c35216669e52022564a9c5a651d1

[tdonohue]

It appears this will require a manual port to 7.x as the automated port failed ☝️