update grid4 & heroledger models

heromodels/examples/heroledger_example/README.md

@@ -0,0 +1,15 @@
+# Heroledger Postgres Example
+
+This example demonstrates how to use the Heroledger `User` model against Postgres using the `heromodels::db::postgres` backend.
+
+- Connects to Postgres with user `postgres` and password `test123` on `localhost:5432`.
+- Creates the table and indexes automatically on first use.
+- Shows basic CRUD and an index lookup on `username`.
+
+Run it:
+
+```bash
+cargo run -p heromodels --example heroledger_example
+```
+
+Make sure Postgres is running locally and accessible with the credentials above.

heromodels/examples/heroledger_example/example.rs

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+use heromodels::db::postgres::{Config, Postgres};
+use heromodels::db::{Collection, Db};
+use heromodels::models::heroledger::user::user_index::username;
+use heromodels::models::heroledger::user::{SecretBox, User};
+
+fn main() {
+    let db = Postgres::new(
+        Config::new()
+            .user(Some("postgres".into()))
+            .password(Some("test123".into()))
+            .host(Some("localhost".into()))
+            .port(Some(5432)),
+    )
+    .expect("Can connect to Postgres");
+
+    println!("Heroledger User - Postgres Example");
+    println!("==================================");
+
+    let users = db.collection::<User>().expect("open user collection");
+
+    // Clean
+    if let Ok(existing) = users.get_all() {
+        for u in existing {
+            let _ = users.delete_by_id(u.get_id());
+        }
+    }
+
+    let sb = SecretBox::new().data(vec![1, 2, 3]).nonce(vec![9, 9, 9]).build();
+
+    let u = User::new(0)
+        .username("alice")
+        .pubkey("PUBKEY_A")
+        .add_email("alice@example.com")
+        .add_userprofile(sb)
+        .build();
+
+    let (id, stored) = users.set(&u).expect("store user");
+    println!("Stored user id={id} username={} pubkey={}", stored.username, stored.pubkey);
+
+    let by_idx = users.get::<username, _>("alice").expect("by username");
+    println!("Found {} user(s) with username=alice", by_idx.len());
+
+    let fetched = users.get_by_id(id).expect("get by id").expect("exists");
+    println!("Fetched by id={} username={} emails={:?}", id, fetched.username, fetched.email);
+
+    // Update
+    let updated = fetched.clone().add_email("work@alice.example");
+    let (_, back) = users.set(&updated).expect("update user");
+    println!("Updated emails = {:?}", back.email);
+
+    // Delete
+    users.delete_by_id(id).expect("delete user");
+    println!("Deleted user id={id}");
+}