Files
hackerspace.sh/scripts/032_classes.sql
T
Moheeb Zara 0c028f52cc feat(classes): schema + RLS + permissions (data layer)
Migration 032 adds classes (offering; optional payment_link and
grants_certification_id, is_active archive), class_sessions (scheduled
occurrence; denormalized space_id) and class_signups (member signup;
partial unique = one non-cancelled signup per member+session). RLS is
additive and default-deny: classes readable by managers (all) or members
(active only), class_sessions by any space member, class_signups by
managers/instructors (all) or the member (own) with instructor-only
UPDATE and no INSERT/DELETE policy so signup/cancel funnels through a
validated service-client action (capacity/waitlist/dedupe). New
classes.manage + classes.instruct permissions (group Classes) seeded to
board and backfilled. Mirrored idempotently in schema.sql; types and
schema docs updated.
2026-05-16 19:27:32 -07:00

196 lines
11 KiB
PL/PgSQL

-- =============================================================================
-- 032: Classes (offerings, scheduled sessions, member signups)
-- =============================================================================
-- Three tables:
--
-- classes a per-space class offering: title, description, an
-- optional generic payment_link (no live payment
-- integration; manual link only), an optional default
-- capacity, an is_active archive flag, and an optional
-- grants_certification_id so completing the class can award
-- a certification (module 030).
-- class_sessions a scheduled occurrence of a class (starts/ends, location,
-- capacity override, status scheduled/cancelled/completed).
-- space_id is denormalized for RLS without a join.
-- class_signups a member's signup for a session (registered/waitlisted/
-- cancelled, attended). space_id denormalized. A partial
-- unique index allows one non-cancelled signup per member
-- per session (re-signup after cancel is allowed).
--
-- Two new permission codes (lib/permissions-catalog.ts, group "Classes"):
--
-- classes.manage create/edit/archive classes; schedule/cancel sessions.
-- classes.instruct run a class: mark attendance, complete a session, see
-- the attendee list.
--
-- Member signup needs no permission, only space membership (same stance as
-- forms/onboarding). Cert-on-completion is issued through the normal
-- certifications path and therefore still requires the acting instructor to
-- hold certifications.grant; the application skips the award (and says so)
-- when they do not. No service-role bypass of the guarded certifications
-- surface.
--
-- RLS posture (additive, default-deny; the guarded surface):
--
-- * classes SELECT: classes.manage holders see all; ordinary members see
-- only is_active (mirrors forms_select). Writes: classes.manage.
-- * class_sessions SELECT: any space member (the schedule is not
-- sensitive; the UI filters cancelled/past). Writes: classes.manage.
-- * class_signups SELECT: classes.manage OR classes.instruct (all in
-- space) OR the member (own rows). UPDATE: classes.instruct (attendance
-- / status). NO INSERT or DELETE policy: member signup/cancel funnels
-- through one validated service-client server action that enforces
-- capacity, waitlisting and de-duplication (same pattern as
-- form_submissions / finishOnboarding). Nothing here is world-writable
-- and there is no anonymous path.
--
-- Extends seed_default_role_permissions() so new spaces seed both codes to
-- board, and backfills board -> both for existing spaces.
--
-- Idempotent: CREATE TABLE/INDEX IF NOT EXISTS, DROP POLICY IF EXISTS then
-- CREATE, CREATE OR REPLACE FUNCTION, ON CONFLICT DO NOTHING backfill.
-- =============================================================================
CREATE TABLE IF NOT EXISTS public.classes (
id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
space_id uuid NOT NULL REFERENCES public.spaces(id) ON DELETE CASCADE,
title text NOT NULL CHECK (char_length(title) BETWEEN 1 AND 200),
description text,
payment_link text CHECK (payment_link IS NULL OR payment_link ~ '^https?://'),
capacity integer CHECK (capacity IS NULL OR capacity > 0),
is_active boolean NOT NULL DEFAULT true,
grants_certification_id uuid REFERENCES public.certifications(id) ON DELETE SET NULL,
created_by uuid REFERENCES public.space_members(id) ON DELETE SET NULL,
created_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS idx_classes_space ON public.classes (space_id, is_active);
CREATE TABLE IF NOT EXISTS public.class_sessions (
id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
class_id uuid NOT NULL REFERENCES public.classes(id) ON DELETE CASCADE,
space_id uuid NOT NULL REFERENCES public.spaces(id) ON DELETE CASCADE,
starts_at timestamptz NOT NULL,
ends_at timestamptz CHECK (ends_at IS NULL OR ends_at >= starts_at),
location text,
capacity integer CHECK (capacity IS NULL OR capacity > 0),
status text NOT NULL DEFAULT 'scheduled'
CHECK (status IN ('scheduled','cancelled','completed')),
notes text,
created_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS idx_class_sessions_space ON public.class_sessions (space_id, starts_at);
CREATE INDEX IF NOT EXISTS idx_class_sessions_class ON public.class_sessions (class_id);
CREATE TABLE IF NOT EXISTS public.class_signups (
id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
session_id uuid NOT NULL REFERENCES public.class_sessions(id) ON DELETE CASCADE,
space_id uuid NOT NULL REFERENCES public.spaces(id) ON DELETE CASCADE,
member_id uuid NOT NULL REFERENCES public.space_members(id) ON DELETE CASCADE,
status text NOT NULL DEFAULT 'registered'
CHECK (status IN ('registered','waitlisted','cancelled')),
attended boolean NOT NULL DEFAULT false,
signed_up_at timestamptz NOT NULL DEFAULT now(),
created_at timestamptz NOT NULL DEFAULT now()
);
-- One active (non-cancelled) signup per member per session; a cancelled row
-- stays as history and a re-signup is allowed.
CREATE UNIQUE INDEX IF NOT EXISTS idx_class_signups_active
ON public.class_signups (session_id, member_id)
WHERE status <> 'cancelled';
CREATE INDEX IF NOT EXISTS idx_class_signups_space ON public.class_signups (space_id);
CREATE INDEX IF NOT EXISTS idx_class_signups_session ON public.class_signups (session_id);
CREATE INDEX IF NOT EXISTS idx_class_signups_member ON public.class_signups (member_id);
ALTER TABLE public.classes ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.class_sessions ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.class_signups ENABLE ROW LEVEL SECURITY;
DROP POLICY IF EXISTS classes_select ON public.classes;
DROP POLICY IF EXISTS classes_insert ON public.classes;
DROP POLICY IF EXISTS classes_update ON public.classes;
DROP POLICY IF EXISTS classes_delete ON public.classes;
CREATE POLICY classes_select ON public.classes FOR SELECT
USING (
public.user_has_permission(auth.uid(), space_id, 'classes.manage')
OR (
space_id IN (SELECT public.get_user_space_ids(auth.uid()))
AND is_active
)
);
CREATE POLICY classes_insert ON public.classes FOR INSERT
WITH CHECK (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
CREATE POLICY classes_update ON public.classes FOR UPDATE
USING (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
CREATE POLICY classes_delete ON public.classes FOR DELETE
USING (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
DROP POLICY IF EXISTS class_sessions_select ON public.class_sessions;
DROP POLICY IF EXISTS class_sessions_insert ON public.class_sessions;
DROP POLICY IF EXISTS class_sessions_update ON public.class_sessions;
DROP POLICY IF EXISTS class_sessions_delete ON public.class_sessions;
CREATE POLICY class_sessions_select ON public.class_sessions FOR SELECT
USING (space_id IN (SELECT public.get_user_space_ids(auth.uid())));
CREATE POLICY class_sessions_insert ON public.class_sessions FOR INSERT
WITH CHECK (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
CREATE POLICY class_sessions_update ON public.class_sessions FOR UPDATE
USING (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
CREATE POLICY class_sessions_delete ON public.class_sessions FOR DELETE
USING (public.user_has_permission(auth.uid(), space_id, 'classes.manage'));
DROP POLICY IF EXISTS class_signups_select ON public.class_signups;
DROP POLICY IF EXISTS class_signups_update ON public.class_signups;
CREATE POLICY class_signups_select ON public.class_signups FOR SELECT
USING (
public.user_has_permission(auth.uid(), space_id, 'classes.manage')
OR public.user_has_permission(auth.uid(), space_id, 'classes.instruct')
OR member_id IN (
SELECT id FROM public.space_members
WHERE user_id = auth.uid() AND space_id = class_signups.space_id
)
);
CREATE POLICY class_signups_update ON public.class_signups FOR UPDATE
USING (public.user_has_permission(auth.uid(), space_id, 'classes.instruct'));
-- No INSERT/DELETE policy: member signup/cancel goes through one validated
-- service-client server action (capacity/waitlist/dedupe enforced there).
DROP TRIGGER IF EXISTS trg_classes_touch ON public.classes;
CREATE TRIGGER trg_classes_touch
BEFORE UPDATE ON public.classes
FOR EACH ROW EXECUTE FUNCTION public.touch_updated_at();
DROP TRIGGER IF EXISTS trg_class_sessions_touch ON public.class_sessions;
CREATE TRIGGER trg_class_sessions_touch
BEFORE UPDATE ON public.class_sessions
FOR EACH ROW EXECUTE FUNCTION public.touch_updated_at();
CREATE OR REPLACE FUNCTION public.seed_default_role_permissions()
RETURNS trigger LANGUAGE plpgsql SECURITY DEFINER SET search_path = public
AS $$
BEGIN
INSERT INTO public.space_role_permissions (space_id, subject, permission)
SELECT NEW.id, d.subject, d.permission
FROM (VALUES
('board','ops.kb.read'),('board','ops.kb.write'),('board','ops.process.read'),
('board','ops.process.write'),('board','ops.secrets.read'),('board','ops.secrets.write'),
('board','ops.arealeads.manage'),('board','members.manage'),('board','payments.manage'),
('board','governance.manage'),('board','forum.moderate'),('board','forms.manage'),
('board','certifications.manage'),('board','certifications.grant'),
('board','classes.manage'),('board','classes.instruct'),
('board','customize.manage'),('board','settings.manage'),
('treasurer','payments.manage'),('treasurer','ops.kb.read'),('treasurer','ops.process.read'),
('member','ops.kb.read'),('member','ops.process.read'),
('associate','ops.kb.read')
) AS d(subject, permission)
ON CONFLICT (space_id, subject, permission) DO NOTHING;
RETURN NEW;
END;
$$;
INSERT INTO public.space_role_permissions (space_id, subject, permission)
SELECT id, 'board', 'classes.manage' FROM public.spaces
ON CONFLICT (space_id, subject, permission) DO NOTHING;
INSERT INTO public.space_role_permissions (space_id, subject, permission)
SELECT id, 'board', 'classes.instruct' FROM public.spaces
ON CONFLICT (space_id, subject, permission) DO NOTHING;