Creating Mongo/mapReduce data source in icCube - mongodb

Question

I would like to create a MongoDB/mapReduce data source into icCube (http://www.iccube.com/support/documentation/user_guide/schemas_cubes/ds_mongodb.php#mapReduce), The below script works fine from Mongo shell, how it should be formatted to be accepted by icCube, when I paste the same code into icCube datasource builder, I get this error message:
MongoDB : invalid JSON (table:Test.mapReduce) : [var location_map = function() { if (this.companyId = "1234" && this.Parent_Location !== undefined && this.Parent_Location.value.length > 0 && this.Parent_Location.value[0].id !== undefined && this.Parent_Location.value[0].id !== null) { emit(this.Parent_Location.value[0].id, {Location_NameOfLocation: this.Location_NameOfLocation, LocationID: this._id, CountryName: "", companyId : 0}); } } var country_map = function() { if (this.companyId = "1234") { emit(this._id, { CountryName: this.CountryName, Location_NameOfLocation: "", LocationID: 0, companyId : this.companyId }); } } var r = function(key, values) { var result = {LocationID: 0, CountryName: "", Location_NameOfLocation: "", companyId : 0}; values.forEach(function(value) { if (result.LocationID === 0 && value.LocationID !== null ) { result.LocationID = value.LocationID; } if (result.companyId === 0 && value.companyId !== null ) { result.companyId = value.companyId; } if (result.CountryName === "" && value.CountryName !== null ) { result.CountryName = value.CountryName; } if (result.Location_NameOfLocation === "" && value.Location_NameOfLocation !== null ) { result.Location_NameOfLocation = value.Location_NameOfLocation; } }); return result; } db.runCommand( { mapReduce: Location, map: location_map, reduce: r, out: { replace: LocationsCountries }, query: {companyId : "1234"} } ) db.runCommand( { mapReduce: Countries, map: country_map, reduce: r, out: { reduce: LocationsCountries }, query: {companyId : "1234" } } )] ^
Mongo mapReduce script:
var location_map = function() {
if (this.companyId = "1234" && this.Parent_Location !== undefined && this.Parent_Location.value.length > 0 && this.Parent_Location.value[0].id !== undefined && this.Parent_Location.value[0].id !== null) {
emit(this.Parent_Location.value[0].id, {Location_NameOfLocation: this.Location_NameOfLocation, LocationID: this._id, CountryName: "", companyId : 0});
}
}
var country_map = function() {
if (this.companyId = "1234") {
emit(this._id, { CountryName: this.CountryName, Location_NameOfLocation: "", LocationID: 0, companyId : this.companyId });
}
}
var r = function(key, values) {
var result = {LocationID: 0, CountryName: "", Location_NameOfLocation: "", companyId : 0};
values.forEach(function(value) {
if (result.LocationID === 0 && value.LocationID !== null ) { result.LocationID = value.LocationID; }
if (result.companyId === 0 && value.companyId !== null ) { result.companyId = value.companyId; }
if (result.CountryName === "" && value.CountryName !== null ) { result.CountryName = value.CountryName; }
if (result.Location_NameOfLocation === "" && value.Location_NameOfLocation !== null ) { result.Location_NameOfLocation = value.Location_NameOfLocation; }
});
return result;
}
db.runCommand(
{
mapReduce: "Location",
map: location_map,
reduce: r,
out: { replace: "LocationsCountries" },
query: {companyId : "1234"}
}
)
db.runCommand(
{
mapReduce: "Countries",
map: country_map,
reduce: r,
out: { reduce: "LocationsCountries" },
query: {companyId : "1234" }
}
)
Thanks,
Balint

Answer 1

You'll have to define your functions in strings ( and Javascript escape if required strings within these strings ). This is described here in the icCube documentation ( www ). Here is an example combining single quoted strings with double-quoted strings.
{
"mapReduce": "Location",
"map": 'function() {
if (this.companyId = "1234" && this.Parent_Location !== undefined && this.Parent_Location.value.length > 0 && this.Parent_Location.value[0].id !== undefined && this.Parent_Location.value[0].id !== null) {
emit(this.Parent_Location.value[0].id, {Location_NameOfLocation: this.Location_NameOfLocation, LocationID: this._id, CountryName: "", companyId : 0});
}
}',
"reduce": 'function(key, values) {
var result = {LocationID: 0, CountryName: "", Location_NameOfLocation: "", companyId : 0};
values.forEach(function(value) {
if (result.LocationID === 0 && value.LocationID !== null ) { result.LocationID = value.LocationID; }
if (result.companyId === 0 && value.companyId !== null ) { result.companyId = value.companyId; }
if (result.CountryName === "" && value.CountryName !== null ) { result.CountryName = value.CountryName; }
if (result.Location_NameOfLocation === "" && value.Location_NameOfLocation !== null ) { result.Location_NameOfLocation = value.Location_NameOfLocation; }
});
return result;
}',
"out": {
"replace": "LocationsCountries"
},
"query": {
"companyId" : "1234"
}
}