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mongo find() ,IN の検証
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// | |
// mongo finc() ,IN の検証 | |
var ObjectID = require('mongodb').ObjectID; | |
const MongoClient = require('mongodb').MongoClient; | |
// | |
function join_test3(){ | |
var URL = "mongodb://localhost:27017"; | |
MongoClient.connect(URL, (err, client) => { | |
var db = client.db("db1"); | |
db.collection("book_groups").find( | |
{ | |
_id: {$in : [ | |
ObjectID("5fd2bcca775662a47e0ba4f8"), | |
ObjectID("5fd2bcca775662a47e0ba4f9"), | |
] | |
} | |
/* | |
_id: {$in : [ | |
ObjectID("5fd1aa099618af7020ab6044"), | |
ObjectID("5fd1a5b4e746f86e8c8bb248"), | |
] | |
} | |
*/ | |
} | |
).toArray().then((docs) => { | |
console.log(docs); | |
}) | |
.catch((err) => { | |
console.log(err); | |
}) | |
.then(() => { | |
client.close(); | |
}); | |
}); | |
} | |
function convert_oid(items){ | |
var ret = [] | |
items.forEach(function(item){ | |
ret.push( ObjectID( item ) ) | |
}); | |
return ret; | |
} | |
// | |
async function join_test4(){ | |
var items = [] | |
items.push("5fd1aa099618af7020ab6044") | |
items.push("5fd1a5b4e746f86e8c8bb248") | |
var oid_items= convert_oid( items ); | |
console.log(oid_items) | |
//return; | |
let client = await MongoClient.connect( "mongodb://localhost:27017" ); | |
const db = client.db("db1"); | |
await db.collection("bread_orders").find( | |
{ | |
_id: {$in : oid_items } | |
} | |
).toArray().then((docs) => { | |
console.log(docs); | |
}) | |
.catch((err) => { | |
console.log(err); | |
}) | |
.then(() => { | |
client.close(); | |
}); | |
} | |
// main | |
join_test3(); | |
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