Module db 

Structs

Client

Invoice

InvoiceItem

Issuer

Product

Functions

client_by_slug

client_create

client_delete

client_list

client_update

Full-replace UPDATE. Matches by slug.

invoice_create

invoice_delete

Delete an invoice by number. Refuses non-draft invoices unless force. Deleting a non-draft invoice breaks the numbering sequence — which is a regulatory problem in many jurisdictions. Forcing should be deliberate.

invoice_get

invoice_item_add

Append an item to a draft invoice. Fails if the invoice isn’t draft.

invoice_item_edit

Replace the item at position with item’s fields. Draft-only.

invoice_item_remove

Remove the item at position from a draft invoice; re-compacts trailing positions so there are no holes.

invoice_list

invoice_set_status

Update status and, on first transition into issued / paid, stamp the corresponding timestamp column. Idempotent — re-marking doesn’t overwrite the original timestamp.

invoice_update_draft

Draft-only metadata edit. Rejects edits to issued / paid / void invoices — the correct path for those is a credit note.

issuer_by_slug

issuer_create

issuer_delete

issuer_list

issuer_update

Full-replace UPDATE. Matches by slug (PK-like). Slug itself cannot change.

next_invoice_number

Generate the next document number for an issuer/year/kind combination. kind is typically “invoice” or “credit_note” — credit notes get an independent sequence and are formatted with a “CN-” prefix.

open

open_at

product_by_slug

product_create

product_delete

product_list

product_update

Full-replace UPDATE. Matches by slug.