方言:Postgres
数据库版本:@latest
续集版本:@latest
我正在尝试找出如何使用关联模型。我有3种型号:post
,postCity
和region
。他们有以下关系: postCity (post_id, region_id)
与post (post_id)
和region (region_id)
相关。我正在使用这样的搜索功能:
include: [
{
model: models.postCity,
include:[{model:models.region}],
attributes: [[models.sequelize.fn('count', 'post_id'), 'count']],
}
],
where: {
$or: [
{
"create_by" : {$not: 67}
},
{
// "postCities.region_name":{$iLike: "%Guangazhou2%"}
},
{
"description":{$iLike: "%India%"}
}
]
}
导致:
SELECT "post"."post_id", "post"."description", "post"."create_by",
"post"."create_time", "post"."update_time", "post"."country_id",
"postCities"."post_id" AS "postCities.post_id",
"postCities"."region_id" AS "postCities.region_id",
"postCities"."order_no" AS "postCities.order_no",
"postCities.region"."region_id" AS "postCities.region.region_id",
"postCities.region"."region_name" AS "postCities.region.region_name",
"postCities.region"."country_id" AS "postCities.region.country_id",
"postCities.region"."province_id" AS "postCities.region.province_id"
FROM "t_post" AS "post"
LEFT OUTER JOIN "t_post_city" AS "postCities"
ON "post"."post_id" = "postCities"."post_id"
LEFT OUTER JOIN "t_region" AS "postCities.region"
ON "postCities"."region_id" = "postCities.region"."region_id"
WHERE ("post"."create_by" != 67 OR "post"."description" ILIKE '%India%');
当我取消 "postCities.region_name":{$iLike: "%Guangazhou2%"}
时,我会得到此错误
column post.postCities.region_name does not exist
我只是喜欢像这样的查询
... WHERE ("post"."create_by" != 67
OR "post"."description" ILIKE '%India%'
OR "postCities.region_name" ILIKE: "%Guangazhou2%")
update
我也尝试包括[{model:models.region, where:{"region_name":{$iLike: "%Guangazhou2%"}}}]
,但这并不能给我适当的结果。
为了将条件添加到包含的表中,您应该用$
符号包装条件,例如:
include: [{
model: models.postCity,
include:[{model:models.region}],
attributes: [[models.sequelize.fn('count', 'post_id'), 'count']],
}],
where: {
$or: [{
"create_by" : {$not: 67}
}, {
"$postCities.region.region_name$":{$iLike: "%Guangazhou2%"}
}, {
"description":{$iLike: "%India%"}
}]
}