Yii 2 Advanced Project Template

Test task for PHP Developer

Minimal application for exchange of cryptocurrencies

Entities: users, users wallets, exchange rates, transactions.
Currencies : USD, BTC, ETH, DOGE, LTC (you can choose any 4 cryptocurrencies instead of BTC, ETH, DOGE, LTC)

User can

• Register/Authorize
• Create several wallets for any currency
• Search a wallet by user’s email and currency
• View wallets all info
• Edit custom name of a wallet
• Update cryptocurrency rates using API https://coinlayer.com and save those rates into the DB, through the Yii2 module creation
• View and edit rates of cryptocurrencies , that have been received by API . Also, the application must have the option to block/unblock updating of a rate for each currency
• Make a currency exchange form between wallets

The exchange form contains next fields:

• senders’ wallet,
• recipients’ wallet recipient,
• amount (currency of wallet-sender),
• display the amount in currency of wallet-recipient, in a currency of wallet-sender using ajax.
• Implement the selection of wallets in form with Select2 .
• View exchange-transactions history

Columns:

Transaction ID,

Sender email,

Recipient email,

Currency of wallet-sender,

Currency of wallet-recipient,

Amount in currency of sender,

Amount in currency of recipient,

Wallet-sender custom name,

Wallet-recipient custom name

Each column must have a search field in GridView.

Prepare your app as follows:

• Register 3 users
• Create a migration to top up usd-wallets with 1000 USD per each of previously mentioned 3 users.
• Provide an UML-diagram of the DB structure.
• Publish your application to any free hosting or be able to demonstrate it using TeamViewer from your local machine.

Keywords: Yii2 advanced, CRUD, PostgreSQL, CoinLayer API, Ajax, Select2, CSS Bootstrap, Yii2 GridView, Yii2 Gii generator, Yii2 migration

How to use service

You could as signup as us existing users accounts:

• login: user1; password: [email protected]
• login: user2; password: [email protected]
• login: user3; password: [email protected]

Yii 2 Advanced Project Template is a skeleton Yii 2 application best for developing complex Web applications with multiple tiers.

The template includes three tiers: front end, back end, and console, each of which is a separate Yii application.

The template is designed to work in a team development environment. It supports deploying the application in different environments.

Documentation is at docs/guide/README.md.

DIRECTORY STRUCTURE

common
    config/              contains shared configurations
    mail/                contains view files for e-mails
    models/              contains model classes used in both backend and frontend
    tests/               contains tests for common classes    
console
    config/              contains console configurations
    controllers/         contains console controllers (commands)
    migrations/          contains database migrations
    models/              contains console-specific model classes
    runtime/             contains files generated during runtime
backend
    assets/              contains application assets such as JavaScript and CSS
    config/              contains backend configurations
    controllers/         contains Web controller classes
    models/              contains backend-specific model classes
    runtime/             contains files generated during runtime
    tests/               contains tests for backend application    
    views/               contains view files for the Web application
    web/                 contains the entry script and Web resources
frontend
    assets/              contains application assets such as JavaScript and CSS
    config/              contains frontend configurations
    controllers/         contains Web controller classes
    models/              contains frontend-specific model classes
    runtime/             contains files generated during runtime
    tests/               contains tests for frontend application
    views/               contains view files for the Web application
    web/                 contains the entry script and Web resources
    widgets/             contains frontend widgets
vendor/                  contains dependent 3rd-party packages
environments/            contains environment-based overrides