multiple types of transactions

[YtvwlD]

We currently have a single type of transaction which appears under /audits:

{

    "id": 0,
    "created_at": "2017-09-27T18:45:15Z",
    "difference": 5,
    "product": 0

}

But there are actually at least two different types of transactions here:

• buying a product (product specifies what was bought; difference is negative)
• depositing money (product is None; difference is positive)
• paying money ( product is None; difference is positive)

We distinguish these via the product and via the difference field.

But there can probably be more types:

• transferring money (what's this?)
• differentiating between cash or balance
• more?

I just wanted to hear your opinions about changing the data model of a transaction and how we could achieve transferring money.

[mikafinja]

Transactions in version 3 have a field called action which can either be spend or deposit. A transfer between to users creates two transactions. One on the senders account with the action spend and one on the receivers account with the action deposit, but they are not linked.