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package erp
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import (
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"fmt"
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"strconv"
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"strings"
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"time"
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"server/models"
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"github.com/beego/beego/v2/client/orm"
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)
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// Settings 从租户「ERP基础设置」读取的运行时参数。
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type Settings struct {
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NegativeAllowed bool // negative_stock_allowed
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AutoDocNo bool // auto_generate_doc_no
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DefaultWarehouseID uint64 // default_warehouse（存的是名称，按名称匹配）
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SalesPriceType string // sales_price_type：sale/wholesale/member
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}
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func GetSettings(tenantID string) *Settings {
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s := &Settings{AutoDocNo: true, SalesPriceType: "sale"}
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if v := models.GetErpNormalSettingByKey(tenantID, "negative_stock_allowed"); v != nil {
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s.NegativeAllowed = strings.TrimSpace(v.ConfigValue) == "1"
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}
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if v := models.GetErpNormalSettingByKey(tenantID, "auto_generate_doc_no"); v != nil {
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s.AutoDocNo = strings.TrimSpace(v.ConfigValue) != "0"
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}
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if v := models.GetErpNormalSettingByKey(tenantID, "sales_price_type"); v != nil {
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if t := strings.TrimSpace(v.ConfigValue); t != "" {
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s.SalesPriceType = t
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}
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}
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if v := models.GetErpNormalSettingByKey(tenantID, "default_warehouse"); v != nil {
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name := strings.TrimSpace(v.ConfigValue)
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if name != "" {
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var wh models.ErpWarehouse
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if err := models.Orm.QueryTable(new(models.ErpWarehouse)).
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Filter("tenant_id", tenantID).
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Filter("warehouse_name", name).
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Filter("delete_time__isnull", true).One(&wh); err == nil {
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s.DefaultWarehouseID = wh.ID
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}
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}
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}
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if s.DefaultWarehouseID == 0 {
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var wh models.ErpWarehouse
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if err := models.Orm.QueryTable(new(models.ErpWarehouse)).
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Filter("tenant_id", tenantID).
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Filter("is_default", 1).
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Filter("status", 1).
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Filter("delete_time__isnull", true).One(&wh); err == nil {
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s.DefaultWarehouseID = wh.ID
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}
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}
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return s
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}
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// erpDocPrefixDefaults 各单据类型的取号前缀默认值（也是基础设置里可改的初值）。
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// 必须一型一前缀：共用前缀会让采购入库/其他入库、采购退货/销售退货同号段，
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// 单据号无法反推类型，日次序号也会互相穿插。
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var erpDocPrefixDefaults = map[string]string{
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models.ErpDocPurchaseOrder: "CGDD",
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models.ErpDocPurchaseIn: "CGRK",
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models.ErpDocPurchaseReturn: "CGTH",
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models.ErpDocSalesOrder: "XSDD",
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models.ErpDocSalesOut: "XSCK",
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models.ErpDocSalesReturn: "XSTH",
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models.ErpDocOtherIn: "QTRK",
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models.ErpDocOtherOut: "QTCK",
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models.ErpDocTransfer: "DB",
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models.ErpDocStockTake: "PD",
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}
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// ErpDocPrefixKey 单据类型 → 基础设置键（document 分组，每型独立）
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func ErpDocPrefixKey(docType string) string {
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if _, ok := erpDocPrefixDefaults[docType]; !ok {
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return ""
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}
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return "doc_prefix_" + docType
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}
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// ErpDocPrefixDefaults 供基础设置接口登记默认前缀
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func ErpDocPrefixDefaults() map[string]string {
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return erpDocPrefixDefaults
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}
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// ErpDocPrefixField 基础设置「单据设置」里一条可编辑的单据前缀
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type ErpDocPrefixField struct {
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Key string
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Name string
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Default string
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}
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// 表单展示顺序：按采购→销售→其他→调拨/盘点
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var erpDocPrefixLabels = []struct {
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docType string
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name string
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}{
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{models.ErpDocPurchaseOrder, "采购订单前缀"},
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{models.ErpDocPurchaseIn, "采购入库前缀"},
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{models.ErpDocPurchaseReturn, "采购退货前缀"},
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{models.ErpDocSalesOrder, "销售订单前缀"},
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{models.ErpDocSalesOut, "销售出库前缀"},
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{models.ErpDocSalesReturn, "销售退货前缀"},
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{models.ErpDocOtherIn, "其他入库前缀"},
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{models.ErpDocOtherOut, "其他出库前缀"},
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{models.ErpDocTransfer, "调拨单前缀"},
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{models.ErpDocStockTake, "盘点单前缀"},
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}
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// ErpDocPrefixFields 返回全部单据前缀配置项，供基础设置接口注册默认值
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func ErpDocPrefixFields() []ErpDocPrefixField {
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out := make([]ErpDocPrefixField, 0, len(erpDocPrefixLabels))
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for _, l := range erpDocPrefixLabels {
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out = append(out, ErpDocPrefixField{
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Key: ErpDocPrefixKey(l.docType),
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Name: l.name,
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Default: erpDocPrefixDefaults[l.docType],
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})
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}
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return out
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}
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// docNoPrefix 按单据类型取号前缀（基础设置 document 分组），缺省用类型缩写。
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func docNoPrefix(tenantID, docType string) string {
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if key := ErpDocPrefixKey(docType); key != "" {
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if v := models.GetErpNormalSettingByKey(tenantID, key); v != nil {
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if p := strings.ToUpper(strings.TrimSpace(v.ConfigValue)); p != "" {
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return p
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}
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}
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}
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if p, ok := erpDocPrefixDefaults[docType]; ok {
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return p
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}
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return "ERP"
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}
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// GenerateDocNo 生成单据号：前缀+YYYYMMDD+当日3位序号（按租户+类型+日期计数）。
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// 依赖 yz_backend_erp_document 的 uk_tenant_docno 唯一索引兜底，调用方需处理重号重试。
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func GenerateDocNo(o orm.QueryExecutor, tenantID, docType string) (string, error) {
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prefix := docNoPrefix(tenantID, docType)
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day := time.Now().Format("20060102")
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var count int64
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var err error
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if o != nil {
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count, err = o.QueryTable(new(models.ErpDocument)).
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Filter("tenant_id", tenantID).Filter("doc_no__startswith", prefix+day).Count()
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} else {
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count, err = models.Orm.QueryTable(new(models.ErpDocument)).
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Filter("tenant_id", tenantID).Filter("doc_no__startswith", prefix+day).Count()
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}
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if err != nil && err != orm.ErrNoRows {
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return "", err
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}
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seq := count + 1
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if seq > 999 {
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return "", fmt.Errorf("当日单据编号已超过999，请先归档")
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}
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return fmt.Sprintf("%s%s%03d", prefix, day, seq), nil
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}
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// GenerateFundNo 收付款单号：前缀(SK/FK/QR/ZC)+日期+序号。
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func GenerateFundNo(tenantID string, fundType int8) (string, error) {
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prefixMap := map[int8]string{
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models.ErpFundReceive: "SK", models.ErpFundPay: "FK",
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models.ErpFundOtherIn: "QR", models.ErpFundExpense: "FY",
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}
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p, ok := prefixMap[fundType]
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if !ok {
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p = "ZJ"
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}
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day := time.Now().Format("20060102")
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count, err := models.Orm.QueryTable(new(models.ErpFundBill)).
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Filter("tenant_id", tenantID).Filter("fund_no__startswith", p+day).Count()
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if err != nil && err != orm.ErrNoRows {
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return "", err
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}
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return fmt.Sprintf("%s%s%03d", p, day, count+1), nil
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}
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// GenerateProductCode 商品编号：SP+日期+当日序号（租户内唯一由 uk_tenant_code 兜底）。
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func GenerateProductCode(tenantID string) string {
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day := time.Now().Format("20060102")
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count, _ := models.Orm.QueryTable(new(models.ErpProduct)).
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Filter("tenant_id", tenantID).Filter("product_code__startswith", "SP"+day).Count()
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return fmt.Sprintf("SP%s%03d", day, count+1)
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}
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// GetPartnerPaymentDays 取往来单位账期天数（应收到期日计算）。
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func GetPartnerPaymentDays(partnerType string, partnerID uint64) int {
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if partnerID == 0 {
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return 0
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}
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switch partnerType {
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case "customer":
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var row models.TenantCrmCustomer
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if err := models.Orm.QueryTable(new(models.TenantCrmCustomer)).
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Filter("id", partnerID).One(&row); err == nil {
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return row.PaymentDays
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}
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case "supplier":
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var row models.TenantCrmSupplier
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if err := models.Orm.QueryTable(new(models.TenantCrmSupplier)).
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Filter("id", partnerID).One(&row); err == nil {
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return row.PaymentDays
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}
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}
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return 0
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}
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// GetCustomerCreditLimit 客户信用额度，0=不限。
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func GetCustomerCreditLimit(customerID uint64) float64 {
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var row models.TenantCrmCustomer
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if err := models.Orm.QueryTable(new(models.TenantCrmCustomer)).
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Filter("id", customerID).One(&row); err != nil {
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return 0
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}
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return row.CreditLimit
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}
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// 内部工具
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func itoa(v uint64) string { return strconv.FormatUint(v, 10) }
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