fix

wangpengfei

2023-08-18 9a7e0a7da01a9f9625ceaca0c61a59c540c6438f

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package service
 
import (
    "aps_crm/constvar"
    "aps_crm/model"
    "aps_crm/pkg/ecode"
    "github.com/shopspring/decimal"
    "gorm.io/gorm"
)
 
type SalesDetailsService struct{}
 
func (SalesDetailsService) AddSalesDetails(salesDetails *model.SalesDetails) int {
    salesDetails.AmountReceivable = decimal.Zero.Round(2)
    salesDetails.AmountInvoiced = decimal.Zero.Round(2)
    salesDetails.AmountReceived = decimal.Zero.Round(2)
    salesDetails.AmountUnInvoiced = decimal.Zero.Round(2)
    salesDetails.AmountTotal = decimal.Zero.Round(2)
    for _, product := range salesDetails.Products {
        salesDetails.AmountTotal = salesDetails.AmountTotal.Add(product.Amount.Mul(product.Price))
    }
    salesDetails.AmountTotal = salesDetails.AmountTotal.Round(2)
    salesDetails.AmountReceivable = salesDetails.AmountTotal
    salesDetails.AmountUnInvoiced = salesDetails.AmountTotal
    err := model.NewSalesDetailsSearch().Create(salesDetails)
    if err != nil {
        return ecode.SalesDetailsExist
    }
 
    return ecode.OK
}
 
func (SalesDetailsService) DeleteSalesDetails(id int) int {
    _, err := model.NewSalesDetailsSearch().SetId(id).First()
    if err != nil {
        return ecode.SalesDetailsNotExist
    }
 
    err = model.NewSalesDetailsSearch().SetId(id).Delete()
    if err != nil {
        return ecode.SalesDetailsNotExist
    }
    return ecode.OK
}
 
func (SalesDetailsService) BatchDeleteSalesDetails(ids []int) int {
    err := model.NewSalesDetailsSearch().DeleteByIds(ids)
    if err != nil {
        return ecode.DBErr
    }
    return ecode.OK
}
 
func (SalesDetailsService) UpdateSalesDetails(salesDetails *model.SalesDetails) int {
    // check salesDetails exist
    old, err := model.NewSalesDetailsSearch().SetId(salesDetails.Id).First()
    if err != nil {
        return ecode.SalesDetailsNotExist
    }
    var totalAmount decimal.Decimal
    totalAmount = salesDetails.AmountTotal
    newProducts, removedProducts := NewProductsService().PickDiffProducts(salesDetails.Products, old.Products)
    for _, product := range newProducts {
        totalAmount = totalAmount.Add(product.Amount.Mul(product.Price))
    }
    removedProductIds := make([]uint, 0, len(removedProducts))
    for _, product := range removedProducts {
        totalAmount = totalAmount.Sub(product.Amount.Mul(product.Price))
        removedProductIds = append(removedProductIds, product.Id)
    }
    salesDetails.AmountTotal = totalAmount.Round(2)
    salesDetails.AmountReceivable = salesDetails.AmountTotal.Sub(salesDetails.AmountReceived)
    salesDetails.AmountUnInvoiced = salesDetails.AmountTotal.Sub(salesDetails.AmountInvoiced)
 
    err = model.WithTransaction(func(db *gorm.DB) error {
        err = model.NewSalesDetailsSearch().SetId(salesDetails.Id).Update(salesDetails)
        if err != nil {
            return err
        }
        err = model.NewProductSearch(db).SetIds(removedProductIds).Delete()
        if err != nil {
            return err
        }
        err = model.NewProductSearch(db).CreateBatch(newProducts)
        if err != nil {
            return err
        }
        var rel []*model.SalesDetailsProduct
        for _, p := range newProducts {
            rel = append(rel, &model.SalesDetailsProduct{
                SalesDetailsId: salesDetails.Id,
                ProductId:      p.Id,
            })
        }
        return model.NewSalesDetailsProductSearch().CreateBatch(rel)
    })
 
    if err != nil {
        return ecode.SalesDetailsSetErr
    }
 
    return ecode.OK
}
 
func (SalesDetailsService) GetSalesDetailsList(page, pageSize int, keywordType constvar.SalesDetailsKeywordType, keyword string) ([]*model.SalesDetails, int64, int) {
    // get contact list
    contacts, total, err := model.NewSalesDetailsSearch().
        SetPreload(true).
        SetKeywordType(keywordType).
        SetKeyword(keyword).SetPage(page, pageSize).FindAll()
    if err != nil {
        return nil, 0, ecode.SalesDetailsListErr
    }
    return contacts, total, ecode.OK
}