addition of new dashboard

backend/db/migrations/000012 - references.sql

@@ -0,0 +1,29 @@
+-- DROP TABLE IF EXISTS public.reference CASCADE;
+CREATE TABLE public.reference (
+    id                  BIGSERIAL PRIMARY KEY,
+    user_id             BIGINT NOT NULL REFERENCES public.user(id),
+    uri                 TEXT NOT NULL UNIQUE,
+    created_ts          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_ts          TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+CREATE INDEX idx__public__reference__user_id        ON public.reference (user_id);
+CREATE INDEX idx__public__reference__created_ts     ON public.reference (created_ts);
+CREATE INDEX idx__public__reference__updated_ts     ON public.reference (updated_ts);
+
+-- DROP TABLE IF EXISTS public.agreement_reference CASCADE;
+CREATE TABLE public.agreement_reference (
+    id                  BIGSERIAL PRIMARY KEY,
+    user_id             BIGINT NOT NULL REFERENCES public.user(id),
+    agreement_id        BIGINT NOT NULL REFERENCES public.agreement(id),
+    reference_id        BIGINT NOT NULL REFERENCES public.reference(id),
+    created_ts          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_ts          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    CONSTRAINT uniq__agreement_reference_id UNIQUE (user_id, agreement_id, reference_id)
+);
+CREATE INDEX idx__public__agreement_reference__user_id        ON public.agreement_reference (user_id);
+CREATE INDEX idx__public__agreement_reference__agreement_id   ON public.agreement_reference (agreement_id);
+CREATE INDEX idx__public__agreement_reference__reference_id   ON public.agreement_reference (reference_id);
+CREATE INDEX idx__public__agreement_reference__created_ts     ON public.agreement_reference (created_ts);
+CREATE INDEX idx__public__agreement_reference__updated_ts     ON public.agreement_reference (updated_ts);
+
+ALTER TABLE public.agreement ALTER COLUMN parent DROP NOT NULL;