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["Thiago F. Pappacena" <pappacena@xxxxxxxxx>]

Pushed the requested changes

Diff comments:

> diff --git a/database/schema/patch-2210-26-1.sql b/database/schema/patch-2210-26-1.sql
> new file mode 100644
> index 0000000..5b2232c
> --- /dev/null
> +++ b/database/schema/patch-2210-26-1.sql
> @@ -0,0 +1,107 @@
> +-- Copyright 2021 Canonical Ltd.  This software is licensed under the
> +-- GNU Affero General Public License version 3 (see the file LICENSE).
> +
> +SET client_min_messages=ERROR;
> +
> +ALTER TABLE Snap
> +    ADD COLUMN project integer REFERENCES product,
> +    ADD COLUMN access_policy integer,
> +    ADD COLUMN access_grants integer[];
> +
> +COMMENT ON COLUMN Snap.project IS 'The project which is the pillar for this Snap';
> +
> +CREATE TABLE SnapSubscription (
> +    id serial NOT NULL PRIMARY KEY,

Ok!

> +    person integer NOT NULL REFERENCES Person(id),
> +    snap integer NOT NULL REFERENCES Snap(id),
> +    date_created timestamp without time zone DEFAULT (CURRENT_TIMESTAMP AT TIME ZONE 'UTC') NOT NULL,
> +    subscribed_by integer NOT NULL REFERENCES Person(id)
> +);

Ok!

> +
> +CREATE UNIQUE INDEX snapsubscription__person_snap__key
> +    ON SnapSubscription(snap, person);
> +
> +CREATE INDEX snapsubscription__person__idx
> +    ON SnapSubscription(person);
> +
> +ALTER TABLE AccessArtifact
> +    ADD COLUMN snap integer REFERENCES snap;
> +
> +CREATE UNIQUE INDEX accessartifact__snap__key
> +    ON AccessArtifact(snap) WHERE snap IS NOT NULL;
> +
> +
> +ALTER TABLE AccessArtifact DROP CONSTRAINT has_artifact;
> +ALTER TABLE AccessArtifact
> +    ADD CONSTRAINT has_artifact CHECK (
> +    (null_count(ARRAY[bug, branch, gitrepository, snap, specification]) = 4));
> +
> +
> +CREATE OR REPLACE FUNCTION snap_denorm_access(snap_id integer)
> +    RETURNS void LANGUAGE plpgsql AS
> +$$
> +DECLARE
> +    information_type integer;
> +BEGIN
> +    SELECT
> +        -- information type: 1 = public; 5 = proprietary
> +        CASE WHEN private THEN 5 ELSE 1 END
> +    INTO information_type
> +    FROM snap WHERE id = snap_id;

It make sense. Thanks. 

I'll add the Snap.information_type column, and use Snap.private as a fallback until we have the code using only the information_type column, and the information_type column back filled.

> +
> +    UPDATE Snap
> +        SET access_policy = policies[1], access_grants = grants
> +        FROM
> +            build_access_cache(
> +                (SELECT id FROM accessartifact WHERE snap = snap_id),
> +                information_type)
> +            AS (policies integer[], grants integer[])
> +        WHERE id = snap_id;
> +END;
> +$$;
> +
> +CREATE OR REPLACE FUNCTION accessartifact_denorm_to_artifacts(artifact_id integer)
> +    RETURNS void
> +    LANGUAGE plpgsql
> +    AS $$
> +DECLARE
> +    artifact_row accessartifact%ROWTYPE;
> +BEGIN
> +    SELECT * INTO artifact_row FROM accessartifact WHERE id = artifact_id;
> +    IF artifact_row.bug IS NOT NULL THEN
> +        PERFORM bug_flatten_access(artifact_row.bug);
> +    END IF;
> +    IF artifact_row.branch IS NOT NULL THEN
> +        PERFORM branch_denorm_access(artifact_row.branch);
> +    END IF;
> +    IF artifact_row.gitrepository IS NOT NULL THEN
> +        PERFORM gitrepository_denorm_access(artifact_row.gitrepository);
> +    END IF;
> +    IF artifact_row.snap IS NOT NULL THEN
> +        PERFORM snap_denorm_access(artifact_row.snap);
> +    END IF;
> +    IF artifact_row.specification IS NOT NULL THEN
> +        PERFORM specification_denorm_access(artifact_row.specification);
> +    END IF;
> +    RETURN;
> +END;
> +$$;
> +
> +COMMENT ON FUNCTION accessartifact_denorm_to_artifacts(artifact_id integer) IS
> +    'Denormalize the policy access and artifact grants to bugs, branches, git repositories, snaps, and specifications.';
> +
> +-- A trigger to handle snap.{private,project} changes.
> +CREATE OR REPLACE FUNCTION snap_maintain_access_cache_trig() RETURNS trigger
> +    LANGUAGE plpgsql AS $$
> +BEGIN
> +    PERFORM snap_denorm_access(NEW.id);
> +    RETURN NULL;
> +END;
> +$$;
> +
> +CREATE TRIGGER snap_maintain_access_cache
> +    AFTER INSERT OR UPDATE OF private, project ON Snap
> +    FOR EACH ROW EXECUTE PROCEDURE snap_maintain_access_cache_trig();
> +
> +
> +INSERT INTO LaunchpadDatabaseRevision VALUES (2210, 26, 1);


-- 
https://code.launchpad.net/~pappacena/launchpad/+git/launchpad/+merge/397459
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