Claude
8535d39012
The codebase is now split into two clear layers: Framework library (src/): - lib.rs — public API surface, re-exports all framework types - signal.rs — SignalOpts, Signal, SignalStore, mangle/global/client_only helpers - query.rs — Query trait, CacheKey, query_one!/query_all! macros (macro paths updated from $crate::framework::* to $crate::*) - context.rs — RenderContext, ComponentTree, ComponentNode - connection.rs — ConnectionManager, SubscriptionRegistry, ConnectionState - sse.rs — format_patch_elements, format_patch_signals - server.rs — AppState, SharedState, sse_handler (pure framework plumbing) Todo example (examples/todo/): - main.rs — SQLite setup, seeding, server bootstrap - app.rs — router, document_shell, resolve_and_render, render_page, action_then_render, and all HTTP handlers - queries.rs — Todo model, ListTodos/GetTodo queries, mutation helpers - todo_list.rs — TodoList page component - about.rs — About page component Run the example independently with: cargo run --example todo https://claude.ai/code/session_01JThiQbp3Bn9J1VhBpRuz4u
76 lines
2.4 KiB
Rust
76 lines
2.4 KiB
Rust
use livevue_rs::CacheKey;
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use serde::{Deserialize, Serialize};
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// ---------------------------------------------------------------------------
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// Models
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// ---------------------------------------------------------------------------
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/// A single todo item. Maps to the `todos` SQLite table.
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#[derive(Debug, Clone, Serialize, Deserialize, sqlx::FromRow)]
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pub struct Todo {
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pub id: i64,
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pub title: String,
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pub completed: bool,
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}
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// ---------------------------------------------------------------------------
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// Read queries (go through cx.run / Query trait)
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// ---------------------------------------------------------------------------
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/// Fetch all todos, ordered by id.
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pub struct ListTodos;
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livevue_rs::query_all!(ListTodos {
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sql: "SELECT id, title, completed FROM todos ORDER BY id",
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params: [],
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output: Todo,
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cache: |_s: &ListTodos| CacheKey::Table { table: "todos" },
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});
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/// Fetch a single todo by id.
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pub struct GetTodo {
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pub id: i64,
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}
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livevue_rs::query_one!(GetTodo {
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sql: "SELECT id, title, completed FROM todos WHERE id = ?",
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params: [|s: &GetTodo| s.id],
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output: Todo,
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cache: |s: &GetTodo| CacheKey::PrimaryKey { table: "todos", id: s.id },
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});
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// ---------------------------------------------------------------------------
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// Write operations (plain sqlx, not through Query trait)
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// ---------------------------------------------------------------------------
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//
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// Mutations don't go through cx.run() because they're not reads and don't
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// produce subscription keys. They're called directly by action handlers,
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// which then trigger a full rerender.
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/// Insert a new todo. Returns the new row's id.
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pub async fn create_todo(db: &sqlx::SqlitePool, title: &str) -> anyhow::Result<i64> {
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let result = sqlx::query("INSERT INTO todos (title, completed) VALUES (?, false)")
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.bind(title)
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.execute(db)
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.await?;
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Ok(result.last_insert_rowid())
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}
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/// Toggle a todo's completed status.
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pub async fn toggle_todo(db: &sqlx::SqlitePool, id: i64) -> anyhow::Result<()> {
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sqlx::query("UPDATE todos SET completed = NOT completed WHERE id = ?")
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.bind(id)
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.execute(db)
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.await?;
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Ok(())
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}
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/// Delete a todo by id.
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pub async fn delete_todo(db: &sqlx::SqlitePool, id: i64) -> anyhow::Result<()> {
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sqlx::query("DELETE FROM todos WHERE id = ?")
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.bind(id)
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.execute(db)
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.await?;
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Ok(())
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}
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