README

Caridea is a miniscule PHP application library. This shrimpy fellow is what you'd use when you just want some helping hands and not a full-blown framework.

This is its Data Access Object support component. You can use these classes to support DAOs that you write.

Installation

You can install this library using Composer:

$ composer require caridea/dao

• The master branch (version 3.x) of this project requires PHP 7.1 and depends on caridea/event.
• Version 2.x of this project requires PHP 7.0 and depends on caridea/event.

Compliance

Releases of this library will conform to Semantic Versioning.

Our code is intended to comply with PSR-1, PSR-2, and PSR-4. If you find any issues related to standards compliance, please send a pull request!

Documentation

• Head over to Read the Docs

Features

We provide a mechanism to translate vendor-specific exceptions (right now, MongoDB and Doctrine exceptions) into a standard exception hierarchy.

• Conflicting – An exception for concurrency failures.
• Inoperable – An exception for invalid API usage and configuration problems.
• Locked – An exception for unwritable records.
• Unreachable – An exception for connection problems.
• Unretrievable – An exception for unexpected results, for instance no results or too many results.
• Violating – An exception for constraint violations.
  • Duplicative – An exception for unique constraint violations.
• When all else fails, there's Generic.

We also provide abstract DAOs that allow you to make calls against your persistence API and have exceptions translated automatically.

class MyDao extends \Caridea\Dao\MongoDb
{
    public function create($record)
    {
        $this->logger->info("Creating the record");
        $this->doExecute(function ($manager, $collection) use ($record) {
            $bulk = new \MongoDB\Driver\BulkWrite();
            $bulk->insert($record);
            return $manager->executeBulkWrite($collection, $bulk);
        });
    }
}