我在数据库中创建了带有值索引位置卡的变量。
问题在于这里有$ set,有人可以使用变量“position”来查询我吗???
我们可以创建这样的查询吗?
因为此时此查询不起作用。有人能帮帮我吗?
修改
/* 1 */
{
"_id" : ObjectId("59e0aa31daa273086bf100ae"),
"name" : "2",
"users" : [
ObjectId("59cd114cea98d9326ca1c421")
],
"lists" : [
{
"list" : "1",
"cards" : [
{
"name" : "dea"
}
]
},
{
"list" : "dea",
"cards" : [
{
"name" : "22222",
"Author" : [
"59df60fb6fad6224f4f9f22d",
"59df60fb6fad6224f4f9f22d",
"59df60fb6fad6224f4f9f22e"
]
},
{
"name" : "fea"
}
]
}
],
"__v" : 0
}
/* 2 */
{
"_id" : ObjectId("59e35de8a8c83d1ab00dfcb9"),
"name" : "2",
"users" : [
ObjectId("59cd114cea98d9326ca1c421")
],
"lists" : [],
"__v" : 0
}