backbone-events 0.8.0

Events core + the sale/booth/crm/sms/desk overlay — registrations under one authoritative seat counter, the sale seam (order-minted registrations, forward-only paid heal, SO-cancel mirror cascade), booth bookings with the DB exclusivity wall, closed-vocabulary lead rules through a host sink port, the dual-channel (mail/sms) self-arming scheduler, and the exact-match desk verb (Odoo event port, core + overlay)
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//! The write guard of Event (generated by metaphor-schema; do not edit). It lives in a
//! file of its own because `event_service.rs` is hand-owned.

#[allow(unused_imports)]
use super::*;
use crate::domain::entity::Event;

/// The rules the schema declares for Event, checked against the row a create or update
/// would store. The generated build attaches it to [`EventService`]. A refusing rule's
/// break answers 422; a rule in shadow is logged under `backbone::write_guard` and the
/// write goes ahead.
pub struct EventRowRules;

#[async_trait::async_trait]
impl backbone_core::write_guard::WriteGuard<Event> for EventRowRules {
    async fn check(
        &self,
        ctx: &backbone_core::write_guard::WriteCtx<'_, Event>,
    ) -> backbone_core::write_guard::GuardOutcome {
        use backbone_core::row_rule as r;
        use backbone_core::violation::Violation;
        use backbone_core::write_guard::{GuardOutcome, WriteKind};
        let (create, update) = (ctx.kind == WriteKind::Create, ctx.kind == WriteKind::Update);
        let Some(after) = ctx.after.filter(|_| create || update) else {
            return GuardOutcome::allow();
        };
        let Ok(row) = serde_json::to_value(after) else {
            return GuardOutcome::allow();
        };
        let row = &row;
        let old = ctx.before.and_then(|b| serde_json::to_value(b).ok());
        let shadow = Vec::new();
        let mut refuse = Vec::new();
        // `name_required` (@required on Event.name)
        if (create || (update && r::changed(old.as_ref(), row, &["name"]))) && !r::holds(&r::and(r::is_not_null(r::field(row, "name")), r::not(r::is_empty(r::trim(r::field(row, "name")))))) {
            refuse.push(Violation::new("name", "required", "name is required"));
        }
        // `name_max_length` (@max(200) on Event.name)
        if (create || (update && r::changed(old.as_ref(), row, &["name"]))) && !r::holds(&r::le(r::length(r::field(row, "name")), r::Val::Num(200.0_f64))) {
            refuse.push(Violation::new("name", "max_length", "name must be at most 200 characters").with_param("max", 200_i64));
        }
        // `stage_id_required` (@required on Event.stage_id)
        if (create || (update && r::changed(old.as_ref(), row, &["stage_id"]))) && !r::holds(&r::and(r::is_not_null(r::field(row, "stage_id")), r::not(r::is_empty(r::trim(r::field(row, "stage_id")))))) {
            refuse.push(Violation::new("stage_id", "required", "stage_id is required"));
        }
        // `date_tz_max_length` (@max(60) on Event.date_tz)
        if (create || (update && r::changed(old.as_ref(), row, &["date_tz"]))) && !r::holds(&r::le(r::length(r::field(row, "date_tz")), r::Val::Num(60.0_f64))) {
            refuse.push(Violation::new("date_tz", "max_length", "date_tz must be at most 60 characters").with_param("max", 60_i64));
        }
        // `event_slot_count_range` (@range(1, 100) on Event.event_slot_count)
        if (create || (update && r::changed(old.as_ref(), row, &["event_slot_count"]))) && !r::holds(&r::and(r::ge(r::field(row, "event_slot_count"), r::Val::Num(1.0_f64)), r::le(r::field(row, "event_slot_count"), r::Val::Num(100.0_f64)))) {
            refuse.push(Violation::new("event_slot_count", "range", "event_slot_count must be between 1 and 100").with_param("min", 1_i64).with_param("max", 100_i64));
        }
        // `seats_max_non_negative` (@non_negative on Event.seats_max)
        if (create || (update && r::changed(old.as_ref(), row, &["seats_max"]))) && !r::holds(&r::ge(r::field(row, "seats_max"), r::Val::Num(0.0_f64))) {
            refuse.push(Violation::new("seats_max", "non_negative", "seats_max must not be negative"));
        }
        // `event_url_url` (type url on Event.event_url)
        if (create || (update && r::changed(old.as_ref(), row, &["event_url"]))) && !r::holds(&r::matches(r::field(row, "event_url"), "^[a-zA-Z][a-zA-Z0-9+.-]*://\\S+$")) {
            refuse.push(Violation::new("event_url", "url", "event_url must be an absolute URL"));
        }
        GuardOutcome { refuse, shadow }
    }
}