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index.js
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index.js
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const MongoClient = require('mongodb').MongoClient;
class Option {
constructor(args={}) {
Object.assign(this, {
db: null,
}, args)
}
async init() {
await this.initDb()
this.collection = this.db.collection('options');
}
async initDb() {
if(!this.db) {
this.conn = await MongoClient.connect('mongodb://127.0.0.1:27017', { useNewUrlParser: true, useUnifiedTopology: true })
this.db = this.conn.db('kneskdb')
}
}
async update(key, value) {
try {
await this.collection.findOneAndUpdate({name: key.trim()}, { $set: { value : value} }, {upsert: true})
return true
} catch(e) {
console.log(e)
return false
}
}
async get(key, defaultValue=null) {
try {
var meta = await this.collection.findOne({name: key})
if(!meta) return defaultValue
return meta.value
} catch(e) {
console.log(e)
return defaultValue
}
return defaultValue
}
async remove(key) {
try {
var meta = await this.collection.deleteOne({name: key})
return true
} catch(e) {
console.log(e)
return false
}
}
async add(key, value) {
try {
var meta = await this.collection.insertOne({
name: key.trim(),
value: value
})
return meta.result
} catch(e) {
console.log(e)
return false
}
}
}
module.exports = Option