在多集合MongoDB中删除文档匹配条件

Question

我在MongoDB中具有如下数据库结构：

我想在集合company_info中删除一个文档时，必须删除与集合company_info中已删除文档具有相同com_id的所有文档。

例如，当我在集合coimid = DHBK中删除带有company_info的文档时，mongo shell必须删除具有users的关系集合（company_user_role，comid = DHBK，...）中的所有文档

我不知道mongo shell可以执行此操作。

这是我的数据库示例：

1. 收集公司信息：

{"_id":{"$oid":"5eb8bd2480e33d0f04876616"},"comid":"DHBK","comshortname":"DHQG DHBK","comfullname":"BK University","comaddress":"268 Lý Thường Kiệt HCM","comtel":"028123456789","compersoncontact":"Lê Tiến Thường","compersontel":"028123456789","compersonemail":"[email protected]","comstatus":"ACTIVE","comdate":"2020-05-11"}
{"_id":{"$oid":"5ebe02bcb4146803d8ad255f"},"comid":"DHKT","comshortname":"DHKT","comfullname":"University of Economics Ho Chi Minh City","comaddress":"59C Nguyễn Đình Chiểu, Phường 6, Quận 3, Hồ Chí Minh","comtel":"028123456789","compersoncontact":"Nguyễn Trần Thanh Lâm","compersontel":"028123456789","compersonemail":"[email protected]","comstatus":"ACTIVE","comdate":"2020-05-11"}
{"_id":{"$oid":"5ecccb3bb8d5570916cf2916"},"comid":"DHYD","comshortname":"DHYD","comfullname":"Đại học Y Dược TP.HCM","comaddress":"215 Hồng Bàng, Phường 11, Quận 5, Hồ Chí Minh","comtel":"028123456789","compersoncontact":"Donal Trump","compersontel":"028123456789","compersonemail":"[email protected]","comstatus":"ACTIVE","comdate":"2020-05-26"}

2. 用户集合：

{"_id":{"$oid":"5ebd05b52f3700008500220b"},"username":"DHBK","password":"123456","lastname":"DHBK","useremail":"[email protected]","usertel":"0907111001","userdate":"2020-05-05","userstatus":"ACTIVE","userparentid":null,"comid":"DHBK","comdepartment":"DHBK","usercode":"DHBK_0001","usertype":"ADMIN_COM"}
{"_id":{"$oid":"5ebd05b52f3700008500220c"},"username":"KHOA_DIEN","password":"123456","lastname":"KHOA_DIEN","useremail":"[email protected]","usertel":"0907111002","userdate":"2020-05-05","userstatus":"ACTIVE","userparentid":"DHBK","comid":"DHBK","comdepartment":"KHOA_DIEN","usercode":"DHBK_0002","usertype":"USER_COM"}
{"_id":{"$oid":"5ebd05b52f3700008500220d"},"username":"KHOA_XD","password":"123456","lastname":"KHOA_XD","useremail":"[email protected]","usertel":"0907111003","userdate":"2020-05-05","userstatus":"ACTIVE","userparentid":"DHBK","comid":"DHBK","comdepartment":"KHOA_XD","usercode":"DHBK_0003","usertype":"USER_COM"}
{"_id":{"$oid":"5ebd05b52f3700008500220e"},"username":"KHOA_CNTT","password":"123456","lastname":"KHOA_CNTT","useremail":"[email protected]","usertel":"0907111004","userdate":"2020-05-05","userstatus":"ACTIVE","userparentid":"DHBK","comid":"DHBK","comdepartment":"KHOA_CNTT","usercode":"DHBK_0004","usertype":"USER_COM"}

3. Collection Company_user_role

{"_id":{"$oid":"5eb8c6d580e33d0f0487661a"},"rolecode":"DHBK_ROLE_01,DHBK_ROLE_02,DHBK_ROLE_03","comid":"DHBK","username":"DHBK","datecreate":"2020-05-13"}
{"_id":{"$oid":"5ebe01b5b4146803d8ad255c"},"rolecode":"DHBK_ROLE_01,DHBK_ROLE_03","comid":"DHBK","username":"KHOA_DIEN","datecreate":"2020-05-13"}
{"_id":{"$oid":"5ebe020ab4146803d8ad255d"},"rolecode":"DHKT_ROLE_01,DHKT_ROLE_02","comid":"DHKT","username":"DHKT","datecreate":"2020-05-13"}
{"_id":{"$oid":"5ebe025ab4146803d8ad255e"},"rolecode":"DHKT_ROLE_02","comid":"DHKT","username":"GV_BMKTTHUE","datecreate":"2020-05-13"}

4. Collection company_role：

{"_id":{"$oid":"5eb8c41830cb8651e0906d7c"},"rolecode":"DHBK_ROLE_01","rolename":" ROLE 01","rolelevel":"1","roledesc":"ROLE 01","rolestatus":"ACTIVE","roledate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5eb8c42630cb8651e0906d7d"},"rolecode":"DHBK_ROLE_02","rolename":" ROLE 02","rolelevel":"1","roledesc":"ROLE 02","rolestatus":"ACTIVE","roledate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5ebdff28b4146803d8ad2556"},"rolecode":"DHBK_ROLE_03","rolename":" ROLE 03","rolelevel":"1","roledesc":"ROLE 03","rolestatus":"ACTIVE","roledate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5ebdff46b4146803d8ad2557"},"rolecode":"DHKT_ROLE_01","rolename":" ROLE 01","rolelevel":"1","roledesc":"ROLE 01","rolestatus":"ACTIVE","roledate":"2020-05-11","comid":"DHKT"}
{"_id":{"$oid":"5ebdff55b4146803d8ad2558"},"rolecode":"DHKT_ROLE_02","rolename":" ROLE 02","rolelevel":"1","roledesc":"ROLE 02","rolestatus":"ACTIVE","roledate":"2020-05-11","comid":"DHKT"}

5. 收集公司功能：

{"_id":{"$oid":"5eb8c35b30cb8651e0906d79"},"functioncode":"DHBK_FUNC_01","functionname":"QUYEN 01","functiondesc":"QUYEN 01","functionstatus":"ACTIVE","functiondate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5eb8c36b30cb8651e0906d7a"},"functioncode":"DHBK_FUNC_02","functionname":"QUYEN 02","functiondesc":"QUYEN 02","functionstatus":"ACTIVE","functiondate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5eb8c37830cb8651e0906d7b"},"functioncode":"DHBK_FUNC_03","functionname":"QUYEN 03","functiondesc":"QUYEN 03","functionstatus":"ACTIVE","functiondate":"2020-05-11","comid":"DHBK"}
{"_id":{"$oid":"5ebdfedbb4146803d8ad2554"},"functioncode":"DHKT_FUNC_01","functionname":"QUYEN 01","functiondesc":"QUYEN 01","functionstatus":"ACTIVE","functiondate":"2020-05-11","comid":"DHKT"}
{"_id":{"$oid":"5ebdfef6b4146803d8ad2555"},"function_code":"DHKT_FUNC_02","function_name":"QUYEN 02","function_desc":"QUYEN 02","function_status":"ACTIVE","function_date":"2020-05-11","com_id":"DHKT"}

6. 集合Company_role_function：

{"_id":{"$oid":"5eb8c55230cb8651e0906d7e"},"rolecode":"DHBK_ROLE_01","functioncode":"DHBK_FUNC_01, DHBK_FUNC_02","productid":"mBaaS_Platform","comid":"DHBK"}
{"_id":{"$oid":"5eb8c5a030cb8651e0906d7f"},"rolecode":"DHBK_ROLE_02","functioncode":"DHBK_FUNC_02, DHBK_FUNC_03","productid":"GIS_Platform","comid":"DHBK"}
{"_id":{"$oid":"5ebe0016b4146803d8ad2559"},"rolecode":"DHKT_ROLE_01","functioncode":"DHKT_FUNC_01, DHKT_FUNC_02","productid":"mBaaS_Platform","comid":"DHKT"}
{"_id":{"$oid":"5ebe003cb4146803d8ad255a"},"rolecode":"DHKT_ROLE_02","functioncode":"DHKT_FUNC_01","productid":"Analysis_Platform","comid":"DHKT"}
{"_id":{"$oid":"5ebe00ffb4146803d8ad255b"},"rolecode":"DHBK_ROLE_03","functioncode":"DHBK_FUNC_01, DHBK_FUNC_02,DHBK_FUNC_03","productid":"IOT_Platform","comid":"DHBK"}

7. 收款公司产品

{"_id":{"$oid":"5eb8c09180e33d0f04876618"},"comid":"DHBK","productid":"GIS_Platform","contractcode":"DHBK_CONTRACT_1","contractdate":"2020-05-05","contractstatus":"ACTIVE","datecreate":"2020-05-06"}
{"_id":{"$oid":"5eb8c0c580e33d0f04876619"},"comid":"DHBK","productid":"mBaaS_Platform","contractcode":"DHBK_CONTRACT_2","contractdate":"2020-05-05","contractstatus":"ACTIVE","datecreate":"2020-05-15"}
{"_id":{"$oid":"5ebdfda8d57326595c694904"},"comid":"DHKT","productid":"mBaaS_Platform,Analysis_Platform","contractcode":"DHKT_CONTRACT_1","contractdate":"2020-05-05","contractstatus":"ACTIVE","datecreate":"2020-05-15"}
{"_id":{"$oid":"5ec78a66b8d5570916cbc0b3"},"comid":"DHBK","productid":"ORIMX_platform","contractcode":"22052020-TEST","contractdate":"2020-05-20","contractstatus":"ACTIVE","datecreate":"2020-05-22"}
{"_id":{"$oid":"5ecc7987b8d5570916ceda21"},"comid":"DHBK1","productid":"ORIMX_platform","contractcode":"11111111","contractdate":"22052020","contractstatus":"DISABLE","datecreate":"22052020"}

Answer 1

截至目前，Mongo不支持级联删除操作。 Mongo只是照着做。级联删除不是MongoDB中的概念，而是SQL中的一个概念。

因此，现在您可以做的是，您可以手动删除每个集合中的匹配记录。您可以使用以下方法删除文档：

db.Users.remove({coimid: 'DHBK'})
db.Company_user_role.remove({coimid: 'DHBK'})
... // And so on...

还有另一种方法，但这是一条漫长的路。您可以做的就是更改架构。您可以将所有内容放在一个集合中，而不必进行其他集合。但是，我建议您仅在收藏集已连接并且经常更新的情况下执行此操作。