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feat(life): implement soft delete for life posts

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Add deleted_at and deleted_by_user_id to life_posts schema
Update queries to filter out and prevent interactions with deleted posts
This commit is contained in:
xiaomai
2026-05-02 00:22:48 +08:00
parent 433b19eb67
commit f1ed1e7e40
3 changed files with 40 additions and 5 deletions
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8
backend/db/schema.sql
View File

@@ -136,16 +136,24 @@ CREATE TABLE IF NOT EXISTS life_posts (
body text NOT NULL CHECK (length(body) BETWEEN 1 AND 2000),
created_by_user_id integer REFERENCES users(id) ON DELETE SET NULL,
updated_by_user_id integer REFERENCES users(id) ON DELETE SET NULL,
deleted_by_user_id integer REFERENCES users(id) ON DELETE SET NULL,
deleted_at timestamptz,
created_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now()
);
ALTER TABLE life_posts DROP COLUMN IF EXISTS link_url;
ALTER TABLE life_posts DROP COLUMN IF EXISTS link_title;
ALTER TABLE life_posts ADD COLUMN IF NOT EXISTS deleted_by_user_id integer REFERENCES users(id) ON DELETE SET NULL;
ALTER TABLE life_posts ADD COLUMN IF NOT EXISTS deleted_at timestamptz;
CREATE INDEX IF NOT EXISTS life_posts_created_at_idx
ON life_posts(created_at DESC, id DESC);
CREATE INDEX IF NOT EXISTS life_posts_active_created_at_idx
ON life_posts(created_at DESC, id DESC)
WHERE deleted_at IS NULL;
CREATE TABLE IF NOT EXISTS life_post_tags (
post_id integer NOT NULL REFERENCES life_posts(id) ON DELETE CASCADE,
tag_id integer NOT NULL REFERENCES life_tags(id) ON DELETE CASCADE,

33
backend/src/queries.ts
View File

@@ -1509,7 +1509,7 @@ export async function listLifePosts(
const search = asString(paramsQuery.search)?.trim();
const tagIdValue = asString(paramsQuery.tagId)?.trim();
const params: unknown[] = [];
const conditions: string[] = [];
const conditions: string[] = ['lp.deleted_at IS NULL'];
if (search) {
params.push(`%${search}%`);
@@ -1562,6 +1562,7 @@ async function getLifePostById(id: number, userId: number | null = null, locale
`
${lifePostProjection(locale)}
WHERE lp.id = $1
AND lp.deleted_at IS NULL
`,
[id]
);
@@ -1620,6 +1621,7 @@ export async function updateLifePost(id: number, payload: Record<string, unknown
SET body = $1, updated_by_user_id = $2, updated_at = now()
WHERE id = $3
AND created_by_user_id = $2
AND deleted_at IS NULL
RETURNING id
`,
[cleanPayload.body, userId, id]
@@ -1640,9 +1642,14 @@ export async function updateLifePost(id: number, payload: Record<string, unknown
export async function deleteLifePost(id: number, userId: number) {
const result = await queryOne<{ id: number }>(
`
DELETE FROM life_posts
UPDATE life_posts
SET deleted_at = now(),
deleted_by_user_id = $2,
updated_by_user_id = $2,
updated_at = now()
WHERE id = $1
AND created_by_user_id = $2
AND deleted_at IS NULL
RETURNING id
`,
[id, userId]
@@ -1663,7 +1670,12 @@ export async function setLifePostReaction(
`
INSERT INTO life_post_reactions (post_id, user_id, reaction_type)
SELECT $1, $2, $3
WHERE EXISTS (SELECT 1 FROM life_posts WHERE id = $1)
WHERE EXISTS (
SELECT 1
FROM life_posts
WHERE id = $1
AND deleted_at IS NULL
)
ON CONFLICT (post_id, user_id)
DO UPDATE SET reaction_type = EXCLUDED.reaction_type, updated_at = now()
RETURNING post_id AS "postId"
@@ -1680,6 +1692,12 @@ export async function deleteLifePostReaction(postId: number, userId: number, loc
DELETE FROM life_post_reactions
WHERE post_id = $1
AND user_id = $2
AND EXISTS (
SELECT 1
FROM life_posts
WHERE id = $1
AND deleted_at IS NULL
)
RETURNING post_id AS "postId"
`,
[postId, userId]
@@ -1695,7 +1713,12 @@ export async function createLifeComment(postId: number, payload: Record<string,
`
INSERT INTO life_post_comments (post_id, body, created_by_user_id)
SELECT $1, $2, $3
WHERE EXISTS (SELECT 1 FROM life_posts WHERE id = $1)
WHERE EXISTS (
SELECT 1
FROM life_posts
WHERE id = $1
AND deleted_at IS NULL
)
RETURNING id
`,
[postId, cleanPayload.body, userId]
@@ -1717,10 +1740,12 @@ export async function createLifeCommentReply(
INSERT INTO life_post_comments (post_id, parent_comment_id, body, created_by_user_id)
SELECT lc.post_id, lc.id, $3, $4
FROM life_post_comments lc
JOIN life_posts lp ON lp.id = lc.post_id
WHERE lc.post_id = $1
AND lc.id = $2
AND lc.parent_comment_id IS NULL
AND lc.deleted_at IS NULL
AND lp.deleted_at IS NULL
RETURNING id
`,
[postId, commentId, cleanPayload.body, userId]