Please do not store this test task into a public repository. Feel free email us if you have any questions regarding this test task.
Vladyslav: 🙈🙉🙊 Oh, I am sorry, that's my code now :) Fell free to distribute this code as you want.
Run composer install to install phpunit and generate vendor/autoload.php.
Modify schema.sql and write SQL queries to create a db for storing a result.
Implement Importer. Feel free to make any changes you need.
Your implementation need to use $mapping in order to find a proper position of a value.
It means you cannot hard code names/positions of the report columns.
Please note, that you should be able to import a huge report that won't fit into the memory completely.
It would be good to have it implemented in pure PHP (+PDO) and "green" tests (optional).
Things to note:
- validation is not required, you can trust the provided report
- Merchant has many Batches, Batch has many Transactions
- Merchant unique key is
Report::MERCHANT_ID - Batch unique key is a combination of
Report::MERCHANT_IDandReport::BATCH_DATEandReport::BATCH_REF_NUM - Transaction does not have any unique key and having duplicates after several imports is OK
- significant optimizations are welcome (consume less memory, make fewer db queries, less execution time)
- do NOT implement missing framework features from scratch, focus on solving this test task
Modify queries.sql and write SQL queries (how to get a proper result from your DB)