feat: add advanced example of contract state migration

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
       uses: actions-rs/toolchain@v1
       with:
         profile: minimal
-        toolchain: stable
+        toolchain: 1.81.0
         default: true
         target: wasm32-unknown-unknown
 

Cargo.toml

@@ -14,4 +14,7 @@ members = [
     "enum-updates/update",
     "self-updates/base",
     "self-updates/update",
-]
+    "advanced-multi-version-updates/v1",
+    "advanced-multi-version-updates/v2",
+    "advanced-multi-version-updates/v3",
+]

advanced-multi-version-updates/v1/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "advanced-v1"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[dependencies]
+near-sdk = "5.6"

advanced-multi-version-updates/v1/README.md

@@ -0,0 +1,79 @@
+# Guest Book Contract
+
+The smart contract stores messages, keeping track of how much money was deposited when adding the message.
+
+```rust
+#[payable]
+pub fn add_message(&mut self, text: String) {
+  let payment = env::attached_deposit();
+  let premium = payment >= POINT_ONE;
+  let sender = env::predecessor_account_id();
+
+  let message = PostedMessage {
+    premium,
+    sender,
+    text,
+  };
+  self.messages.push(message);
+  self.payments.push(payment);
+}
+```
+
+<br />
+
+# Quickstart
+
+## 1. Build and Deploy the Contract
+
+Install [`cargo-near`](https://github.com/near/cargo-near) and run:
+
+```bash
+# from repo root
+cd advanced-multi-version-updates/v1
+cargo near build --no-docker
+```
+
+Build and deploy:
+
+```bash
+# `update-migrate-rust-advanced-multiversion-updates.testnet` was used as example of <target-account-id>
+cargo near deploy --no-docker <target-account-id> without-init-call network-config testnet sign-with-keychain send
+```
+
+## 2. How to interact?
+
+_In this example we will be using [NEAR CLI](https://github.com/near/near-cli)
+to intract with the NEAR blockchain and the smart contract and [near-cli-rs](https://near.cli.rs)
+which provides more control over interactions and has interactive menus for subcommands selection_
+
+### 1. Add a Message
+
+```bash
+# NEAR CLI
+near call <target-account-id> add_message '{"text": "a message"}' --amount 0.1 --accountId <account>
+# near-cli-rs
+near contract call-function as-transaction <target-account-id> add_message json-args '{"text": "a message"}' prepaid-gas '100.0 Tgas' attached-deposit '0.1 NEAR' sign-as <account> network-config testnet sign-with-keychain send
+```
+
+<br />
+
+### 2. Retrieve the Stored Messages & Payments
+
+`get_messages` and `get_payments` are read-only method (`view` method)
+
+```bash
+# NEAR CLI
+near view <target-account-id> get_messages
+# near-cli-rs
+near contract call-function as-read-only <target-account-id> get_messages json-args {} network-config testnet now
+# NEAR CLI
+near view <target-account-id> get_payments
+# near-cli-rs
+near contract call-function as-read-only <target-account-id> get_payments json-args {} network-config testnet now
+```
+
+<br />
+
+### 3. Continue in the V2 Folder
+
+Navigate to the [v2](../v2/) folder to continue

advanced-multi-version-updates/v1/rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.81.0"
+components = ["rustfmt"]
+targets = ["wasm32-unknown-unknown"]

advanced-multi-version-updates/v1/src/lib.rs

@@ -0,0 +1,81 @@
+use near_sdk::{near, BorshStorageKey};
+
+use near_sdk::borsh::BorshSerialize;
+use near_sdk::json_types::{U128, U64};
+use near_sdk::store::Vector;
+
+use near_sdk::{env, AccountId, NearToken};
+
+const POINT_ONE: NearToken = NearToken::from_millinear(100);
+
+#[derive(BorshSerialize, BorshStorageKey)]
+#[borsh(crate = "near_sdk::borsh")]
+pub enum StorageKey {
+    Messages,
+    Payments,
+}
+
+#[near(serializers=[json, borsh])]
+pub struct PostedMessage {
+    pub premium: bool,
+    pub sender: AccountId,
+    pub text: String,
+}
+
+#[near(contract_state)]
+pub struct GuestBook {
+    messages: Vector<PostedMessage>,
+    payments: Vector<NearToken>,
+}
+
+impl Default for GuestBook {
+    fn default() -> Self {
+        Self {
+            messages: Vector::new(StorageKey::Messages),
+            payments: Vector::new(StorageKey::Payments),
+        }
+    }
+}
+
+#[near]
+impl GuestBook {
+    #[payable]
+    pub fn add_message(&mut self, text: String) {
+        let payment = env::attached_deposit();
+        let premium = payment >= POINT_ONE;
+        let sender = env::predecessor_account_id();
+
+        let message = PostedMessage {
+            premium,
+            sender,
+            text,
+        };
+        self.messages.push(message);
+        self.payments.push(payment);
+    }
+
+    pub fn get_messages(
+        &self,
+        from_index: Option<U128>,
+        limit: Option<U64>,
+    ) -> Vec<&PostedMessage> {
+        let from = u128::from(from_index.unwrap_or(U128(0)));
+
+        self.messages
+            .iter()
+            .skip(from as usize)
+            .take(u64::from(limit.unwrap_or(U64::from(10))) as usize)
+            .collect()
+    }
+
+    pub fn get_payments(&self, from_index: Option<U128>, limit: Option<U64>) -> Vec<U128> {
+        let from = u128::from(from_index.unwrap_or(U128(0)));
+
+        self.payments
+            .iter()
+            .skip(from as usize)
+            .take(u64::from(limit.unwrap_or(U64::from(10))) as usize)
+            .map(|x| U128(x.as_yoctonear()))
+            .collect()
+    }
+}

advanced-multi-version-updates/v2/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "advanced-v2"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[dependencies]
+near-sdk = "5.6"