seepur/app/Utils/UserChildUtils.js
2020-04-12 10:25:42 -04:00

69 lines
2.2 KiB
JavaScript

const Link = use('App/Models/Link');
class UserChildUtils {
static async isUserConnectedToChild(user_id, child_id) {
const links = await Link.query().where({user_id, child_id}).fetch();
return !!links.rows.length;
}
static async isParentOf(user_id, child_id) {
const links =
await Link.query().where({user_id, child_id, is_parent: true}).fetch();
return !!links.rows.length;
}
static async getChildParents(child_id) {
const links = await Link.query().where({child_id, is_parent: true}).fetch();
const parents = await Promise.all(links.rows.map(async l => {
return l.user().fetch();
}));
return parents;
}
static async getUserConnections(user_id) {
const links = await Link.query().where({user_id}).fetch();
const connections = await links.rows.reduce(async (_prev, link) => {
const prev = await _prev;
const is_parent = link.is_parent;
const child = await link.child().fetch();
if (is_parent) {
const parents = await UserChildUtils.getChildParents(child.id);
const nonSameUserParents = parents.filter(p => p.id != user_id);
prev.children.push({
...child.toJSON(),
connections: [
...await UserChildUtils.getChildConnections(child.id),
...nonSameUserParents
]
})
} else {
prev.connections.push({
...child.toJSON(),
connections: [...await UserChildUtils.getChildParents(child.id)]
})
}
return prev;
}, Promise.resolve({children: [], connections: []}));
return connections;
}
static async getChildConnections(child_id) {
const links =
await Link.query().where({child_id, is_parent: false}).fetch();
const connections = await Promise.all(links.rows.map(async l => {
return l.user().fetch();
}));
return connections;
}
static async addConnection(child_id, user_id, is_parent = false) {
const link = await Link.create({child_id, user_id, is_parent});
const user = await link.user().fetch();
const child = await link.child().fetch();
return {
user, child, is_parent
}
}
}
module.exports = UserChildUtils;