MEAN.JS: Filter in mongoose middleware - express

Question

This is my code in backend controller in MEAN JS:
exports.list = function(req, res) {
// configure the filter using req params
var filters = {
filters : {
optional : {
contains : req.query.filter
}
}
};
var sort = {
asc : {
desc: 'name'
}
};
Province
.find()
.filter(filters)
.order(sort)
.exec(function (err, provinces) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.jsonp(provinces);
}
});
};
The request:
http://localhost:3000/provinces?filter[name]=provincia de Barcelona
Returns a filtered result, as expected:
[
{
"_id": "54ba72903f51d73c4aff6da6",
"community": "54ba689f5fdfbdea292b8737",
"location": "{lat: '41.386290', lng: '2.184988', zoom: '11'}",
"__v": 0,
"name": "provincia de Barcelona"
}
]
When I use a different attribute, the filter stops working. Example:
http://localhost:3000/provinces?filters[community]=54ba69755fdfbdea292b8738
Return this:
{
"message": ""
}
And console.log(err) return this:
[CastError: Cast to ObjectId failed for value "/54ba689f5fdfbdea292b8737/i" at path "community"]
message: 'Cast to ObjectId failed for value "/54ba689f5fdfbdea292b8737/i" at path "community"',
name: 'CastError',
type: 'ObjectId',
value: /54ba689f5fdfbdea292b8737/i,
path: 'community' }
The original document:
[
{
"_id": "54ba72903f51d73c4aff6da6",
"community": "54ba689f5fdfbdea292b8737",
"location": "{lat: '41.386290', lng: '2.184988', zoom: '11'}",
"__v": 0,
"name": "provincia de Barcelona"
},
{
"_id": "54ba73c33f51d73c4aff6da7",
"community": "54ba69755fdfbdea292b8738",
"location": "{lat: '42.4298846', lng: '-8.644620199999963', zoom: '11'}",
"__v": 0,
"name": "provincia de Pontevedra"
}
]

Answer 1

Maybe is not the best way, but works :)
exports.list = function(req, res) {
var community = {community: ''};
community.community = mongoose.Types.ObjectId(req.query.filter.community);
console.log(community);
var filters = {
filters : {
optional : {
contains : community
}
}
};
var sort = {
asc : {
desc: 'name'
}
};
Province
.find()
.filter(filters)
.order(sort)
.exec(function (err, provinces) {
console.log(err);
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.jsonp(provinces);
}
});
};
The request:
http://localhost:3000/provinces?filter[community]=54ba689f5fdfbdea292b8737
The result:
[
{
"_id": "54ba72903f51d73c4aff6da6",
"community": "54ba689f5fdfbdea292b8737",
"location": "{lat: '41.386290', lng: '2.184988', zoom: '11'}",
"__v": 0,
"name": "provincia de Barcelona"
}
]