1、增加导出药房关联医生列表导出

2、检测到有绑定/默认医生时直接报错，强制要求管理员先手动处理；

api/dao/doctorPharmacy.go

@@ -1,6 +1,10 @@
 package dao
 
 import (
+	"errors"
+	"strconv"
+	"strings"
+
 	"gorm.io/gorm"
 	"hospital-admin-api/api/model"
 	"hospital-admin-api/api/requests"
@@ -168,3 +172,94 @@ func (r *DoctorPharmacyDao) GetPharmacyDoctorListByPharmacyId(pharmacyId int64)
 	}
 	return m, nil
 }
+
+// GetDoctorPharmacyCountsByPharmacyId 获取药房绑定的医生数量（有效绑定数、设为默认药房数）
+func (r *DoctorPharmacyDao) GetDoctorPharmacyCountsByPharmacyId(pharmacyId int64) (totalCount int64, defaultCount int64, err error) {
+	err = global.Db.Model(&model.DoctorPharmacy{}).
+		Where("pharmacy_id = ? AND status = 1", pharmacyId).
+		Count(&totalCount).Error
+	if err != nil {
+		return 0, 0, err
+	}
+
+	err = global.Db.Model(&model.DoctorPharmacy{}).
+		Where("pharmacy_id = ? AND status = 1 AND is_default = 1", pharmacyId).
+		Count(&defaultCount).Error
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return totalCount, defaultCount, nil
+}
+
+// GetPharmacyDoctorExportListSearch 获取药房关联医生列表-导出
+func (r *DoctorPharmacyDao) GetPharmacyDoctorExportListSearch(req requests.PharmacyDoctorExportList) (m []*model.DoctorPharmacy, err error) {
+	query := global.Db.Model(&model.DoctorPharmacy{}).
+		Where("gdxz_doctor_pharmacy.status = 1")
+
+	// 药房id过滤
+	if req.PharmacyId != "" {
+		pharmacyId, _ := strconv.ParseInt(req.PharmacyId, 10, 64)
+		if pharmacyId >= 0 {
+			query = query.Where("gdxz_doctor_pharmacy.pharmacy_id = ?", pharmacyId)
+		}
+	}
+
+	// 1:当前搜索数据
+	if req.Type == 1 {
+		needJoinDoctor := req.DoctorName != "" || req.Mobile != ""
+		if needJoinDoctor {
+			query = query.Joins("JOIN gdxz_user_doctor ON gdxz_user_doctor.doctor_id = gdxz_doctor_pharmacy.doctor_id")
+			if req.DoctorName != "" {
+				query = query.Where("gdxz_user_doctor.user_name LIKE ?", "%"+req.DoctorName+"%")
+			}
+			if req.Mobile != "" {
+				query = query.Joins("JOIN gdxz_user ON gdxz_user.user_id = gdxz_user_doctor.user_id").
+					Where("gdxz_user.mobile LIKE ?", "%"+req.Mobile+"%")
+			}
+		}
+	}
+
+	// 2:当前选中数据
+	if req.Type == 2 {
+		if req.Id == "" {
+			return nil, errors.New("未提供需导出数据编号")
+		}
+		id := strings.Split(req.Id, ",")
+		query = query.Where("gdxz_doctor_pharmacy.doctor_pharmacy_id IN (?) OR gdxz_doctor_pharmacy.doctor_id IN (?)", id, id)
+	}
+
+	// 3:全部数据（无额外搜索条件）
+
+	err = query.Order("gdxz_doctor_pharmacy.is_default desc, gdxz_doctor_pharmacy.created_at desc").
+		Preload("Pharmacy").
+		Preload("UserDoctor.User").
+		Preload("UserDoctor.Hospital").
+		Find(&m).Error
+	if err != nil {
+		return nil, err
+	}
+
+	// GORM 在外键为 0 时会自动跳过 Preload，因此针对未能预加载的记录进行兜底补全
+	var zeroPharmacy *model.Pharmacy
+	for _, dp := range m {
+		if dp.Pharmacy == nil {
+			if dp.PharmacyId == 0 {
+				if zeroPharmacy == nil {
+					var ph model.Pharmacy
+					if err := global.Db.Where("pharmacy_id = 0").First(&ph).Error; err == nil {
+						zeroPharmacy = &ph
+					}
+				}
+				dp.Pharmacy = zeroPharmacy
+			} else {
+				var ph model.Pharmacy
+				if err := global.Db.Where("pharmacy_id = ?", dp.PharmacyId).First(&ph).Error; err == nil {
+					dp.Pharmacy = &ph
+				}
+			}
+		}
+	}
+
+	return m, nil
+}