我是SQL新手,在编写以下查询时遇到了困难。
脚本
用户有两个地址,家庭地址(App\User
)和列表地址(App\Listing
)。当访问者搜索郊区、邮政编码或州的列表时,如果用户的列表地址不匹配-但是如果家庭地址匹配-他们也将出现在搜索结果中。
例如:如果访问者搜索Melbourne
,我希望包括Melbourne
中的列表,以及Melbourne
中有地址的用户的列表。
预期产量:
user_id first_name email suburb postcode state
1 Mathew [email protected] Melbourne 3000 VIC
2 Zammy [email protected] Melbourne 3000 VIC
桌子
用户:
id first_name email
1 Mathew [email protected]
2 Zammy [email protected]
3 Tammy [email protected]
4 Foo [email protected]
5 Bar [email protected]
列表:
id user_id hourly_rate description
1 1 30 ABC
2 2 40 CBD
3 3 50 XYZ
4 4 49 EFG
5 5 10 Efd
地址:
id addressable_id addressable_type post_code suburb state latitude longitude
3584 1 App\\User 2155 Rouse Hill NSW -33.6918372 150.9007221
3585 2 App\\User 3000 Melbourne VIC -33.6918372 150.9007221
3586 3 App\\User 2000 Sydney NSW -33.883123 151.245969
3587 4 App\\User 2008 Chippendale NSW -33.8876392 151.2011224
3588 5 App\\User 2205 Wolli Creek NSW -33.935259 151.156301
3591 1 App\\Listing 3000 Melbourne VIC -37.773923 145.12385
3592 2 App\\Listing 2030 Vaucluse NSW -33.858935 151.2784079
3597 3 App\\Listing 4000 Brisbane QLD -27.4709331 153.0235024
3599 4 App\\Listing 2000 Sydney NSW -33.91741 151.231307
3608 5 App\\Listing 2155 Rouse Hill NSW -33.863464 151.271504
最佳答案
试试这个。你可以检查它here。
SELECT l.*
FROM listings l
LEFT JOIN addresses a_l ON a_l.addressable_id = l.id
AND a_l.addressable_type = "App\\Listing"
AND a_l.suburb = "Melbourne"
LEFT JOIN addresses a_u ON a_u.addressable_id = l.user_id
AND a_u.addressable_type = "App\\User"
AND a_u.suburb = "Melbourne"
WHERE a_l.id IS NOT NULL OR a_u.id IS NOT NULL