wip: limit front page event display logic

[maze-runnar]

Fixes #5110

• some of the things are not clear from issue. Like please clarify between public event page and start page. And Only organizer can know the sales so we can't know how much tickets are available. Then how to restrict on basis of that. And wht it exactly means -

limits the number of tickets and therefore no longer has a ticket on the public page

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

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[iamareebjamal]

This needs to be done on server side in upcoming events route

[codecov]

Codecov Report

Merging #5588 (2d3fb54) into development (7ecc1da) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@               Coverage Diff               @@
##           development    #5588      +/-   ##
===============================================
+ Coverage        23.75%   23.88%   +0.12%     
===============================================
  Files              498      498              
  Lines             5257     5262       +5     
  Branches            44       44              
===============================================
+ Hits              1249     1257       +8     
+ Misses            4002     3999       -3     
  Partials             6        6              

Impacted Files	Coverage Δ
app/controllers/index.js	48.14% <100.00%> (+11.78%)	⬆️
app/components/tabbed-navigation.js	33.33% <0.00%> (-20.00%)	⬇️
app/routes/index.js	78.57% <0.00%> (ø)
app/serializers/ticket.js	100.00% <0.00%> (+100.00%)	⬆️

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[maze-runnar]

class UpcomingEventList(EventList):
    def query(self, view_kwargs):
        current_time = datetime.now(pytz.utc)
        query_ = (
            self.session.query(Event)
            .filter(
                Event.starts_at > current_time,
                Event.ends_at > current_time,
                Event.state == 'published',
                Event.privacy == 'public',
                or_(
                    Event.is_promoted,
                    and_(
                        Event.original_image_url != None,
                        Event.logo_url != None,
                        Event.event_type_id != None,
                        Event.event_topic_id != None,
                        Event.event_sub_topic_id != None,
                    ),
                ),
            )
            .order_by(Event.starts_at)
        )
        return query_

I have used Event.tickets, I want to use any(ticket.is_hidden ==false for ticket in (Event.tickets)) for filtering. How to achieve this?

[iamareebjamal]

Event.query.filter(Event.tickets.any(and_(Ticket.deleted_at == None, Ticket.price > 0)))