xfy 36168f26d7 fix(database): cast extract(epoch)::double precision in active-connections query
extract(epoch FROM now() - query_start) returns numeric (decimal) in
PostgreSQL, but the result was read as f64 via r.get(4). tokio-postgres
has no FromSql<f64> impl for the numeric type, so get_db_status panicked
at runtime with 'error deserializing column 4' (HTTP 500).

Cast to ::double precision (float8) to match query_duration_secs: Option<f64>.

Audited the remaining column mappings in status.rs to rule out further
type mismatches — all sound: reltuples::bigint->i64, native bigint size
columns->i64, last_vacuum/last_analyze timestamptz->DateTime<Utc>
(chrono feature enabled), schema_migrations.version TEXT->String,
count(*)::int->i32 (fixed previously).
2026-06-30 13:51:48 +08:00
2026-06-29 16:12:18 +08:00

Yggdrasil

基于 Dioxus 0.7 的全栈博客系统Rust 单一代码库同时编译为 WASM 前端和原生服务端。

技术栈

  • 框架: Dioxus 0.7 (fullstack)
  • 数据库: PostgreSQL + tokio-postgres
  • 样式: Tailwind CSS v4
  • 密码: Argon2
  • 会话: UUID token + cookie

功能

  • 邮箱注册 / 登录(单管理员模式,首次注册后关闭)
  • 会话管理与自动过期清理
  • 暗色 / 亮色主题切换
  • 后台文章撰写Tiptap Markdown 编辑器)
  • 文章归档与标签浏览

开发

依赖 Rust 1.95+、wasm32 目标、dx CLI、tailwindcss CLI v4 和 PostgreSQL。

# 配置数据库
DATABASE_URL=postgres://postgres:postgres@localhost:5432/yggdrasil

# 运行迁移(自动创建数据库并按顺序执行 migrations/ 下所有 SQL
./migrate.sh

# 启动开发服务器
make dev

构建

make build

生产部署

生产环境必须前置反向代理nginx/Caddy做 TLS 终结,并设置 APP_BASE_URLCOOKIE_SECURE=trueTRUSTED_PROXY_COUNT=1。详见 部署指南

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