38 lines
968 B
JavaScript
38 lines
968 B
JavaScript
|
const ASContext = 'https://www.w3.org/ns/activitystreams';
|
||
|
|
|
||
|
|
function convertId(obj) {
|
||
|
|
if (obj._id) {
|
||
|
|
obj.id = obj._id
|
||
|
|
delete obj._id
|
||
|
|
}
|
||
|
|
return obj
|
||
|
|
}
|
||
|
|
function isObject(value) {
|
||
|
|
return value && typeof value === 'object' && value.constructor === Object
|
||
|
|
}
|
||
|
|
// outtermost closure starts the recursion counter
|
||
|
|
// const level = 0;
|
||
|
|
function traverseObject(obj, f) {
|
||
|
|
const traverse = o => {
|
||
|
|
// const level = level + 1
|
||
|
|
// if (level > 5) return o
|
||
|
|
traverseObject(o, f)
|
||
|
|
}
|
||
|
|
if (!isObject(obj)) return obj;
|
||
|
|
Object.keys(obj).forEach(traverse)
|
||
|
|
return f(obj);
|
||
|
|
}
|
||
|
|
module.exports.toJSONLD = function (obj) {
|
||
|
|
obj['@context'] = ASContext;
|
||
|
|
return obj;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports.arrayToCollection = function (arr, ordered) {
|
||
|
|
|
||
|
|
return {
|
||
|
|
'@context': ASContext,
|
||
|
|
totalItems: arr.length,
|
||
|
|
type: ordered ? 'orderedCollection' : 'collection',
|
||
|
|
[ordered ? 'orderedItems' : 'items']: arr,
|
||
|
|
}
|
||
|
|
}
|