ArmedPolice/app/model/sys_tenant.go

package model

import (
	"ArmedPolice/app/common/model"
	"ArmedPolice/serve/orm"
)

type SysTenant struct {
	*model.SysTenant
}

type (
	// SysTenantBasic 租户基本信息
	SysTenantBasic struct {
		ID   uint64 `json:"id"`
		Name string `json:"name"`
	}
	// SysTenantInfo 租户信息
	SysTenantInfo struct {
		*model.SysTenant
		DeviceCount         int `json:"device_count"`
		CustomerDeviceCount int `json:"customer_device_count"`
	}
)

// Parent 父集元素，包含自己
func (m *SysTenant) Parent(tenantID uint64) ([]*SysTenantBasic, error) {
	sql := `SELECT T2.id, T2.name FROM
(SELECT @r AS _id, (SELECT @r := parent_id FROM ? WHERE id = _id) AS parent_id,	
@l := @l + 1 AS lvl  
FROM (SELECT @r := ?, @l := 0 ) vars, ? h WHERE  @r <> 0) T1 
JOIN ? T2 ON T1._id = T2.id 
ORDER BY T1.lvl DESC`

	out := make([]*SysTenantBasic, 0)

	err := orm.GetDB().Raw(sql, m.TableName(), tenantID, m.TableName(), m.TableName()).Scan(&out).Error

	return out, err
}

func NewSysTenant() *SysTenant {
	return &SysTenant{SysTenant: model.NewSysTenant()}
}