Add relationship of tickets (price range) in Events

[liveHarshit]

Reference issue: fossasia/open-event-attendee-android#1990

[prateekj117]

@liveHarshit On it.

[iamareebjamal]

Relationship will be added, not attribute

[liveHarshit]

Solved

[iamareebjamal]

How?

[liveHarshit]

How?

Already there-

[iamareebjamal]

Umm, you'll load all tickets to find min and max price?

[liveHarshit]

Umm, you'll load all tickets to find min and max count?

I've created a class with price and Id but I'm getting zero price for all tickets: PR fossasia/open-event-attendee-android#2066

[anhanh11001]

@liveHarshit I'm reopening this as I think I can take this issue up, then we would have a better solution in Android

[shreyanshdwivedi]

@anhanh11001 any update?