[Contract] — Implement Get Event Participants Function#914
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…pants-function Implement get_event_participants view
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close #817
Description
, EventError> in src/views.rs which validates the event exists and returns the EventParticipants(event_id) storage index.Added get_event_participants(env: &Env, event_id: u64) -> Result<Vec
Exposed a public contract method get_event_participants(env: Env, event_id: u64) -> Vec in src/lib.rs that maps EventError::EventNotFound to the existing "event_not_found" panic path.
Added unit tests in tests/views_tests.rs covering: returning all participants, empty list for a newly created event, updates as participants join, and missing-event panic behavior.
Documented the new view in README.md and applied minor formatting tweaks to affected files.
Testing
Ran cargo test --manifest-path contracts/creator-event-manager/Cargo.toml --test views_tests -- --nocapture; the new and existing view tests passed (7 passed, 0 failed).