Simple Chat Room in NodeJS, expressJS and mongoDB in Docker Swarm
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4 years ago
'use strict';
module.exports = getVirtual;
/*!
* ignore
*/
function getVirtual(schema, name) {
if (schema.virtuals[name]) {
return { virtual: schema.virtuals[name], path: void 0 };
}
const parts = name.split('.');
let cur = '';
let nestedSchemaPath = '';
for (let i = 0; i < parts.length; ++i) {
cur += (cur.length > 0 ? '.' : '') + parts[i];
if (schema.virtuals[cur]) {
if (i === parts.length - 1) {
return { virtual: schema.virtuals[cur], path: nestedSchemaPath };
}
continue;
}
if (schema.nested[cur]) {
continue;
}
if (schema.paths[cur] && schema.paths[cur].schema) {
schema = schema.paths[cur].schema;
const rest = parts.slice(i + 1).join('.');
if (schema.virtuals[rest]) {
if (i === parts.length - 2) {
return {
virtual: schema.virtuals[rest],
nestedSchemaPath: [nestedSchemaPath, cur].filter(v => !!v).join('.')
};
}
continue;
}
if (i + 1 < parts.length && schema.discriminators) {
for (const key of Object.keys(schema.discriminators)) {
const res = getVirtual(schema.discriminators[key], rest);
if (res != null) {
const _path = [nestedSchemaPath, cur, res.nestedSchemaPath].
filter(v => !!v).join('.');
return {
virtual: res.virtual,
nestedSchemaPath: _path
};
}
}
}
nestedSchemaPath += (nestedSchemaPath.length > 0 ? '.' : '') + cur;
cur = '';
continue;
}
if (schema.discriminators) {
for (const discriminatorKey of Object.keys(schema.discriminators)) {
const virtualFromDiscriminator = getVirtual(schema.discriminators[discriminatorKey], name);
if (virtualFromDiscriminator) return virtualFromDiscriminator;
}
}
return null;
}
}