Here is I have done, but I'm getting {rel : null} for everyuser. I just
want to return relationship between two nodes if it exists which are two
users.
User.checkRelationship = function (user, fid, callback) {
var uids = [user.uid, fid];
async.map(uids, User.by_uid, function (err, usernodes) {
if (!err && usernodes && usernodes.length) {
User.relsCheck(usernodes, function (err, rels) {
if (!err && rels) {
console.log('relationship ' + JSON.stringify(rels));
callback(null, new rels);
} else {
callback(err || new Error('friend request exists'));
}
});
} else {
callback(err || new Error('Unable to fetch user nodes: ' +
uids.join(',')));
}
});
};
User.relsCheck = function (nodes, callback) {
if (nodes.length !== 2) {
return callback(new Error('Invalid/insufficient arguments'));
}
var query = [
'START user=node({userId}), other=node({otherId})',
'MATCH (user) -[rels?:RELTYPE]-> (other)',
'RETURN rels'
].join('\n');
var params = {
userId: nodes[0].node().id,
otherId: nodes[1].node().id,
};
db.query(query, params, callback);
};
please help, thanks!
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