Oier Bravo Urtasun
3af1276c15
DB: shopping_lists + shopping_items tables with full RLS, pg_cron jobs (archive completed lists after 7 days, purge trash after 7 days). item_frequency table with SECURITY DEFINER trigger that normalises and upserts on every shopping_items INSERT. Frontend: /lists overview (featured card + 2-col grid + trash toggle), /lists/[id] detail (qty stepper, inline edit, swipe-to-reveal-delete, drag & drop reorder via svelte-dnd-action, ItemSuggestions chips). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
71 lines
2.8 KiB
PL/PgSQL
71 lines
2.8 KiB
PL/PgSQL
-- Migration 006: item_frequency — per-collective item usage tracking.
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--
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-- Write path: SECURITY DEFINER trigger only. The app role has SELECT access only.
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-- Names are normalized (lower + trim) before upsert so "Milk" and "milk" are the same entry.
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-- ── item_frequency ────────────────────────────────────────────────────────────
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CREATE TABLE public.item_frequency (
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collective_id uuid NOT NULL REFERENCES public.collectives(id) ON DELETE CASCADE,
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name text NOT NULL, -- normalized: lower(trim(original name))
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use_count integer NOT NULL DEFAULT 1,
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last_used_at timestamptz NOT NULL DEFAULT now(),
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PRIMARY KEY (collective_id, name)
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);
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ALTER TABLE public.item_frequency ENABLE ROW LEVEL SECURITY;
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-- Index for the suggestion query: ordered by use_count descending per collective
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CREATE INDEX item_frequency_collective_count_idx
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ON public.item_frequency (collective_id, use_count DESC);
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-- ── RLS ───────────────────────────────────────────────────────────────────────
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-- Members (any role) can read frequency data for collectives they belong to.
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CREATE POLICY item_frequency_select
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ON public.item_frequency FOR SELECT
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USING (public.is_member(collective_id));
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-- All direct writes are blocked; the SECURITY DEFINER trigger below is the only
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-- write path. This prevents clients from inflating suggestion scores artificially.
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CREATE POLICY item_frequency_insert_deny
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ON public.item_frequency FOR INSERT
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WITH CHECK (false);
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CREATE POLICY item_frequency_update_deny
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ON public.item_frequency FOR UPDATE
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USING (false);
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CREATE POLICY item_frequency_delete_deny
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ON public.item_frequency FOR DELETE
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USING (false);
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-- ── Trigger: upsert frequency on shopping_items insert ───────────────────────
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CREATE OR REPLACE FUNCTION public.fn_record_item_frequency()
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RETURNS TRIGGER
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LANGUAGE plpgsql
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SECURITY DEFINER
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SET search_path = public
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AS $$
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DECLARE
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v_collective_id uuid;
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BEGIN
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SELECT collective_id INTO v_collective_id
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FROM public.shopping_lists
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WHERE id = NEW.list_id;
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INSERT INTO public.item_frequency (collective_id, name, use_count, last_used_at)
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VALUES (v_collective_id, lower(trim(NEW.name)), 1, now())
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ON CONFLICT (collective_id, name) DO UPDATE SET
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use_count = item_frequency.use_count + 1,
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last_used_at = now();
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RETURN NEW;
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END;
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$$;
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CREATE TRIGGER trg_item_frequency
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AFTER INSERT ON public.shopping_items
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FOR EACH ROW EXECUTE FUNCTION public.fn_record_item_frequency();
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