var debug = require('debug')('keystone:core:openDatabaseConnection');
module.exports = function openDatabaseConnection (callback) {
var keystone = this;
var mongoConnectionOpen = false;
// support replica sets for mongoose
if (keystone.get('mongo replica set')) {
if (keystone.get('logger')) {
console.log('\nWarning: using the `mongo replica set` option has been deprecated and will be removed in'
+ ' a future version.\nInstead set the `mongo` connection string with your host details, e.g.'
+ ' mongodb://username:password@host:port,host:port,host:port/database and set any replica set options'
+ ' in `mongo options`.\n\nRefer to https://mongodb.github.io/node-mongodb-native/driver-articles/mongoclient.html'
+ ' for more details on the connection settings.');
}
debug('setting up mongo replica set');
var replicaData = keystone.get('mongo replica set');
var replica = '';
var credentials = (replicaData.username && replicaData.password) ? replicaData.username + ':' + replicaData.password + '@' : '';
replicaData.db.servers.forEach(function (server) {
replica += 'mongodb://' + credentials + server.host + ':' + server.port + '/' + replicaData.db.name + ',';
});
var options = {
auth: { authSource: replicaData.authSource },
replset: {
rs_name: replicaData.db.replicaSetOptions.rs_name,
readPreference: replicaData.db.replicaSetOptions.readPreference,
},
};
debug('connecting to replicate set');
keystone.mongoose.connect(replica, options);
} else {
debug('connecting to mongo');
keystone.mongoose.connect(keystone.get('mongo'), keystone.get('mongo options'));
}
keystone.mongoose.connection.on('error', function (err) {
if (keystone.get('logger')) {
console.log('------------------------------------------------');
console.log('Mongo Error:\n');
console.log(err);
}
if (mongoConnectionOpen) {
if (err.name === 'ValidationError') return;
throw err;
} else {
throw new Error('KeystoneJS (' + keystone.get('name') + ') failed to start - Check that you are running `mongod` in a separate process.');
}
}).on('open', function () {
debug('mongo connection open');
mongoConnectionOpen = true;
var connected = function () {
if (keystone.get('auto update')) {
debug('applying auto update');
keystone.applyUpdates(callback);
} else {
callback();
}
};
if (keystone.sessionStorePromise) {
keystone.sessionStorePromise.then(connected);
} else {
connected();
}
});
return this;
};
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