camper/pkg/database/EditedInvoiceProduct.go

77 lines
1.8 KiB
Go

package database
import (
"fmt"
"github.com/jackc/pgio"
"github.com/jackc/pgtype"
)
const EditedInvoiceProductTypeName = "edited_invoice_product"
type EditedInvoiceProduct struct {
*NewInvoiceProduct
InvoiceProductId int
}
func (src EditedInvoiceProduct) EncodeBinary(ci *pgtype.ConnInfo, dst []byte) ([]byte, error) {
typeName := EditedInvoiceProductTypeName
dt, ok := ci.DataTypeForName(typeName)
if !ok {
return nil, fmt.Errorf("unable to find oid for type name %v", typeName)
}
var invoiceProductId interface{}
if src.InvoiceProductId > 0 {
invoiceProductId = src.InvoiceProductId
}
var productId interface{}
if src.ProductId > 0 {
productId = src.ProductId
}
values := []interface{}{
invoiceProductId,
productId,
src.Name,
src.Description,
src.Price,
src.Quantity,
src.Discount,
src.Taxes,
}
ct := pgtype.NewValue(dt.Value).(*pgtype.CompositeType)
if err := ct.Set(values); err != nil {
return nil, err
}
return ct.EncodeBinary(ci, dst)
}
type EditedInvoiceProductArray []*EditedInvoiceProduct
func (src EditedInvoiceProductArray) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error) {
typeName := EditedInvoiceProductTypeName
dt, ok := ci.DataTypeForName(typeName)
if !ok {
return nil, fmt.Errorf("unable to find oid for type name %v", typeName)
}
arrayHeader := pgtype.ArrayHeader{
ElementOID: int32(dt.OID),
Dimensions: []pgtype.ArrayDimension{{Length: int32(len(src)), LowerBound: 1}},
}
buf = arrayHeader.EncodeBinary(ci, buf)
for _, product := range src {
sp := len(buf)
buf = pgio.AppendInt32(buf, -1)
elemBuf, err := product.EncodeBinary(ci, buf)
if err != nil {
return nil, err
}
if elemBuf != nil {
buf = elemBuf
pgio.SetInt32(buf[sp:], int32(len(buf[sp:])-4))
}
}
return buf, nil
}