Tim Wundenberg
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There has been a cyclic dependency. transaction -> treasure_chest -> transaction_recurring -> transaction This has been temporarily solved by moving the GenerateTransactions function into the transaction package. In the future, this function has to be rewritten to use a proper Service insteas of direct DB access or replaced with a different system entirely.
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
package transaction
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import (
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"time"
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"github.com/google/uuid"
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)
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// Transaction is at the center of the application.
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//
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// Every piece of data should be calculated based on transactions.
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// This means potential calculation errors can be fixed later in time.
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//
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// If it becomes necessary to precalculate snapshots for performance reasons, this can be done in the future.
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// But the transaction should always be the source of truth.
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//
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// There are the following constallations and their explanation:
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//
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// Account | TreasureChest | Value | Description
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// --------|---------------|-------|----------------
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// Y | Y | + | Invalid
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// Y | Y | - | Expense
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// Y | N | + | Deposit
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// Y | N | - | Withdrawal (for moving between accounts)
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// N | Y | + | Saving
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// N | Y | - | Withdrawal (for moving between treasure chests)
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// N | N | + | Invalid
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// N | N | - | Invalid
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type Transaction struct {
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Id uuid.UUID `db:"id"`
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UserId uuid.UUID `db:"user_id"`
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Timestamp time.Time `db:"timestamp"`
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Party string `db:"party"`
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Description string `db:"description"`
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AccountId *uuid.UUID `db:"account_id"`
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TreasureChestId *uuid.UUID `db:"treasure_chest_id"`
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Value int64 `db:"value"`
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// If an error is present, then the transaction is not valid and should not be used for calculations.
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Error *string `db:"error"`
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CreatedAt time.Time `db:"created_at"`
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// Either a user_id or a transaction_recurring_id
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CreatedBy uuid.UUID `db:"created_by"`
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UpdatedAt *time.Time `db:"updated_at"`
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UpdatedBy *uuid.UUID `db:"updated_by"`
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}
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type TransactionItemsFilter struct {
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AccountId string
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TreasureChestId string
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Error string
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Page string
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}
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