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Meteor.methods({
exportBoard(boardId) {
check(boardId, String);
const board = Boards.findOne(boardId);
if(board.isVisibleByUser()) {
const exporter = new Exporter(boardId);
return exporter.build();
} else {
throw new Meteor.Error('error-board-notAMember');
}
},
});
class Exporter {
constructor(boardId) {
this._boardId = boardId;
}
build() {
const byBoard = {boardId: this._boardId};
const fields = {fields: {boardId: 0}};
const result = Boards.findOne(this._boardId);
result.lists = Lists.find(byBoard, fields).fetch();
result.cards = Cards.find(byBoard, fields).fetch();
result.comments = CardComments.find(byBoard, fields).fetch();
result.activities = Activities.find(byBoard, fields).fetch();
// we also have to export some user data - as the other elements only include id
// but we have to be careful:
// 1- only exports users that are linked somehow to that board
// 2- do not export any sensitive information
const users = {};
result.members.forEach((member) => {users[member.userId] = true;});
result.lists.forEach((list) => {users[list.userId] = true;});
result.cards.forEach((card) => {
users[card.userId] = true;
if (card.members) {
card.members.forEach((memberId) => {users[memberId] = true;});
}
});
result.comments.forEach((comment) => {users[comment.userId] = true;});
result.activities.forEach((activity) => {users[activity.userId] = true;});
const byUserIds = {_id: {$in: Object.getOwnPropertyNames(users)}};
// we use whitelist to be sure we do not expose inadvertently
// some secret fields that gets added to User later.
const userFields = {fields: {
_id: 1,
username: 1,
'profile.fullname': 1,
'profile.initials': 1,
'profile.avatarUrl': 1,
}};
result.users = Users.find(byUserIds, userFields).fetch();
return result;
}
}
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