Simple Chat Room in NodeJS, expressJS and mongoDB in Docker Swarm
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4 years ago
'use strict';
const Aspect = require('./operation').Aspect;
const CommandOperation = require('./command');
const defineAspects = require('./operation').defineAspects;
const handleCallback = require('../utils').handleCallback;
class DropOperation extends CommandOperation {
constructor(db, options) {
const finalOptions = Object.assign({}, options, db.s.options);
if (options.session) {
finalOptions.session = options.session;
}
super(db, finalOptions);
}
execute(callback) {
super.execute((err, result) => {
if (err) return handleCallback(callback, err);
if (result.ok) return handleCallback(callback, null, true);
handleCallback(callback, null, false);
});
}
}
defineAspects(DropOperation, Aspect.WRITE_OPERATION);
class DropCollectionOperation extends DropOperation {
constructor(db, name, options) {
super(db, options);
this.name = name;
this.namespace = `${db.namespace}.${name}`;
}
_buildCommand() {
return { drop: this.name };
}
}
class DropDatabaseOperation extends DropOperation {
_buildCommand() {
return { dropDatabase: 1 };
}
}
module.exports = {
DropOperation,
DropCollectionOperation,
DropDatabaseOperation
};