Mobile - Add support to recurring events.

[Azad99-9]

Is your feature request related to a problem? Please describe.
Implement recurring events functionality into Talawa mobile.

Describe the solution you'd like

• The event creation screen(s) should have functionality to create recurring events.
  1. weeks
  2. months
  3. days
  4. weekdays
• The Calendar screen(s) should display all the created recurring events.
• The edit event screen(s) should have funcitonality to edit these recurring events.
  1. All instances in the series
  2. Just the instance in question
  3. The instance in question and all those in future
• Make use of updated event mutations to implement the described functionality.
• The screen(s) design must follow the guidelines of Talawa Design System found here:
  - https://docs.talawa.io/docs/design/ux/ux-design-system
• Other functionality must not be affected.
• Write tests and achieve 100% code coverage to all the new functionality added.

Describe alternatives you've considered
N/A

Approach to be followed (optional)

• see above.

Additional context

1. related issues:
   • Fix Recurring Events talawa-api#1583 (comment)
2. related PRs:
   • Create weekly event recurring instance talawa-api#1658 (comment)
   • Fix bug recurring events talawa-api#1712 (comment)

Potential internship candidates
Please read this if you are planning to apply for a Palisadoes Foundation internship #359

[Azad99-9]

@palisadoes please have a look at this issue and do let me know if any follow ups and if I missedout on any thing.

[Community-Programmer]

@Azad99-9
You are requested to hold off for some time as there is currently a discussion underway regarding whether we should follow a denormalized approach or another one.
Once it is confirmed, there may be some tweaks that need to be made in the weekly recurring events PR. Until then, please wait.
Thank you for your understanding

[Azad99-9]

Sure @Community-Programmer

[Azad99-9]

@Cioppolo14 @noman2002 I would like to work on this, please assign me.

As the implementation of this feature in backend is in progress, meanwhile i will start working on the UI part of this issue.

[github-actions]

This issue did not get any activity in the past 10 days and will be closed in 180 days if no update occurs. Please check if the develop branch has fixed it and report again or close the issue.

[Azad99-9]

Working on this, as the recent PR related to this issue in Talawa API has been closed.

[github-actions]

This issue did not get any activity in the past 10 days and will be closed in 180 days if no update occurs. Please check if the develop branch has fixed it and report again or close the issue.

[Olatade]

HI @Azad99-9 are you still working on this?

[Azad99-9]

@Olatade yes I am working on this. There is a backend dependency.

[Azad99-9]

@palisadoes @noman2002 The implementation of this feature requires multiple files to be changed.

• Creation of new Model & View models.
• Modificaton & addition of new Queries.
• New UI changes.

I have also had a word with @meetulr, 2 more PRs related to event updation & deletion are also about to come.

So meanwhile i am thinking to split this issue into multiple PRs and raise them one by one.

[palisadoes]

This was expected. Large PRs are too difficult to review effectively.

[Azad99-9]

@palisadoes @noman2002 please review the UI and suggest changes if any.
Note Api integration not yet done. For now UI is built.
If finalized i will raise a PR for the same. I will make a seperate PR for Api integration.

ui-demo_lUUocDoR.mp4

[palisadoes]

1. Yes this is good
2. Use this to test your work against the API PR in review:
   1. https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[Azad99-9]

@palisadoes @Cioppolo14 still API integration work is pending with this issue. Please reopen this so that I can raise a PR for the same.

[Azad99-9]

Api integration completed, writing tests. Will raise the PR by tomorrow.