base/backend/model/user_organization_model.go

package model

import (
	"context"
	"errors"

	"gorm.io/gorm"
)

// UserOrgInsert 添加用户-机构关联
func UserOrgInsert(ctx context.Context, db *gorm.DB, uo *UserOrganization) (int64, error) {
	result := db.WithContext(ctx).Create(uo)
	if result.Error != nil {
		return 0, result.Error
	}
	return uo.Id, nil
}

// UserOrgFindOne 查询单条关联
func UserOrgFindOne(ctx context.Context, db *gorm.DB, userId, orgId int64) (*UserOrganization, error) {
	var uo UserOrganization
	result := db.WithContext(ctx).Where("user_id = ? AND org_id = ?", userId, orgId).First(&uo)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return nil, ErrNotFound
		}
		return nil, result.Error
	}
	return &uo, nil
}

// UserOrgFindByUserId 获取用户的所有机构关联
func UserOrgFindByUserId(ctx context.Context, db *gorm.DB, userId int64) ([]UserOrganization, error) {
	var list []UserOrganization
	err := db.WithContext(ctx).Where("user_id = ?", userId).Find(&list).Error
	return list, err
}

// UserOrgFindByOrgId 获取机构的所有成员关联
func UserOrgFindByOrgId(ctx context.Context, db *gorm.DB, orgId int64) ([]UserOrganization, error) {
	var list []UserOrganization
	err := db.WithContext(ctx).Where("org_id = ?", orgId).Find(&list).Error
	return list, err
}

// UserOrgUpdate 更新关联（如改角色）
func UserOrgUpdate(ctx context.Context, db *gorm.DB, uo *UserOrganization) error {
	return db.WithContext(ctx).Save(uo).Error
}

// UserOrgDelete 删除关联
func UserOrgDelete(ctx context.Context, db *gorm.DB, userId, orgId int64) error {
	return db.WithContext(ctx).Where("user_id = ? AND org_id = ?", userId, orgId).Delete(&UserOrganization{}).Error
}

// UserOrgDeleteByOrgId 删除机构的所有成员关联
func UserOrgDeleteByOrgId(ctx context.Context, db *gorm.DB, orgId int64) error {
	return db.WithContext(ctx).Where("org_id = ?", orgId).Delete(&UserOrganization{}).Error
}

// UserOrgCountByOrgId 统计机构成员数
func UserOrgCountByOrgId(ctx context.Context, db *gorm.DB, orgId int64) (int64, error) {
	var count int64
	err := db.WithContext(ctx).Model(&UserOrganization{}).Where("org_id = ?", orgId).Count(&count).Error
	return count, err
}