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28 lines
945 B
TypeScript
28 lines
945 B
TypeScript
import type { DatabaseSync } from "node:sqlite";
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// Idempotent: safe to run against a fresh db (already created from schema.sql
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// with these columns/tables) or an existing one that predates them.
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export function up(db: DatabaseSync): void {
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const commentCols = db.prepare(`PRAGMA table_info(comments);`).all() as {
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name: string;
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}[];
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if (!commentCols.some((c) => c.name === "like_count")) {
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db.exec(
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`ALTER TABLE comments ADD COLUMN like_count INTEGER NOT NULL DEFAULT 0;`,
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);
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}
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db.exec(`CREATE TABLE IF NOT EXISTS comment_likes (
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comment_id TEXT NOT NULL,
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user_id TEXT NOT NULL,
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created_at TEXT NOT NULL,
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PRIMARY KEY (comment_id, user_id),
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FOREIGN KEY (comment_id) REFERENCES comments(id) ON DELETE CASCADE,
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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);`);
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db.exec(
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`CREATE INDEX IF NOT EXISTS idx_comment_likes_user ON comment_likes(user_id);`,
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);
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}
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