Simple Chat Room in NodeJS, expressJS and mongoDB in Docker Swarm
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'use strict';
const CommandOperation = require('./command');
class ValidateCollectionOperation extends CommandOperation {
constructor(admin, collectionName, options) {
// Decorate command with extra options
let command = { validate: collectionName };
const keys = Object.keys(options);
for (let i = 0; i < keys.length; i++) {
if (options.hasOwnProperty(keys[i]) && keys[i] !== 'session') {
command[keys[i]] = options[keys[i]];
}
}
super(admin.s.db, options, null, command);
this.collectionName;
}
execute(callback) {
const collectionName = this.collectionName;
super.execute((err, doc) => {
if (err != null) return callback(err, null);
if (doc.ok === 0) return callback(new Error('Error with validate command'), null);
if (doc.result != null && doc.result.constructor !== String)
return callback(new Error('Error with validation data'), null);
if (doc.result != null && doc.result.match(/exception|corrupt/) != null)
return callback(new Error('Error: invalid collection ' + collectionName), null);
if (doc.valid != null && !doc.valid)
return callback(new Error('Error: invalid collection ' + collectionName), null);
return callback(null, doc);
});
}
}
module.exports = ValidateCollectionOperation;