K S
Reputation: 274
Mapping ids from one array to other in js
I'm trying to map all the vins from vins array to rawResponse array based on ewr_fr_id.
Below is my code:
const rawResponse=[ { ewr_fr_id: '303',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null },
{ ewr_fr_id: '303',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null },
{ ewr_fr_id: '302',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null },
{ ewr_fr_id: '302',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null } ];
const fieldReportIds=[ '303', '303', '302', '302' ];
const vins=[ { vin: '2FMPK3J84FBB73425', ewr_fr_id: 303 },
{ vin: 'USELESS', ewr_fr_id: 302 },
{ vin: 'USELESS2', ewr_fr_id: 302 },
{ vin: 'VIN5801', ewr_fr_id: 303 } ];
This is want I am trying:
for (const row in rawResponse) {
getVins = await db.select(context.dbClient, q.getVinsQuery, [rawResponse[row].ewr_fr_id]);
if (vins.length > 0 ) {
rawResponse[row].vins = _.map(rawResponse, vins, 'ewr_fr_id');
}
else
{
rawResponse[row].vins = []; // if there is no vins then add vins: [] to the response
}
}
My expected result is:
rawResponse=[ { ewr_fr_id: '303',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null,
vins:['VIN5801', '2FMPK3J84FBB73425']},
{ ewr_fr_id: '303',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null,
vins:['VIN5801', '2FMPK3J84FBB73425']},
{ ewr_fr_id: '302',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null,
vins:['USELESS', 'USELESS2']},
{ ewr_fr_id: '302',
ewr_id: 102,
yrq: '182',
file_sequence: '1',
fr_sequence: '102-182-1',
manufacturer_name: 'Teryerter',
report_category_cd: 'L',
report_category_description: 'LightVehicle',
date_qtr: '2018Q2',
file_version: 1,
file_type_cd: 'F',
application_cd: 'S',
application_description: 'SINGLE MODEL',
file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
model_or_platform: 'VOLTA',
model_year: '2016',
is_attachment: 'false',
cmpt_01: '10',
cmpt_descr_01: 'PowerTrain',
cmpt_02: null,
cmpt_descr_02: null,
cmpt_03: null,
cmpt_descr_03: null,
cmpt_04: null,
cmpt_descr_04: null,
cmpt_05: null,
cmpt_descr_05: null,
vins:['USELESS', 'USELESS2'] } ];
Basically I am trying to modify rawResponse array to add vins array if the ewr_fr_id is same as that in vins arrays, if there is no match then add an empty array (vins:[])
Upvotes: 2
Views: 74
Answers (4)
Sachith Rukshan
Reputation: 351
You can use a map function on rawRequest variable to start mapping each item and then run a for loop on vins to find the vins to be added.
const res = rawResponse.map(item => {
let myVins = [];
vins.forEach(vin => {
if(vin.ewr_fr_id===Number(item.ewr_fr_id)){
myVins.push(vin.vin);
}
});
item.vins = myVins;
return item;
})
Upvotes: 1
Nikhil
Reputation: 6641
Use map() to transform each item in rawResponse. Filter vins by ewr_fr_id using filter(). And use map() on the filtered results to only return vin.
const rawResponse = [{ ewr_fr_id: '303', ewr_id: 102, yrq: '182', file_sequence: '1', fr_sequence: '102-182-1', manufacturer_name: 'Teryerter', report_category_cd: 'L', report_category_description: 'LightVehicle', date_qtr: '2018Q2', file_version: 1, file_type_cd: 'F', application_cd: 'S', application_description: 'SINGLE MODEL', file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF', ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF', model_or_platform: 'VOLTA', model_year: '2016', is_attachment: 'false', cmpt_01: '10', cmpt_descr_01: 'PowerTrain', cmpt_02: null, cmpt_descr_02: null, cmpt_03: null, cmpt_descr_03: null, cmpt_04: null, cmpt_descr_04: null, cmpt_05: null, cmpt_descr_05: null }, { ewr_fr_id: '303', ewr_id: 102, yrq: '182', file_sequence: '1', fr_sequence: '102-182-1', manufacturer_name: 'Teryerter', report_category_cd: 'L', report_category_description: 'LightVehicle', date_qtr: '2018Q2', file_version: 1, file_type_cd: 'F', application_cd: 'S', application_description: 'SINGLE MODEL', file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF', ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF', model_or_platform: 'VOLTA', model_year: '2016', is_attachment: 'false', cmpt_01: '10', cmpt_descr_01: 'PowerTrain', cmpt_02: null, cmpt_descr_02: null, cmpt_03: null, cmpt_descr_03: null, cmpt_04: null, cmpt_descr_04: null, cmpt_05: null, cmpt_descr_05: null }, { ewr_fr_id: '302', ewr_id: 102, yrq: '182', file_sequence: '1', fr_sequence: '102-182-1', manufacturer_name: 'Teryerter', report_category_cd: 'L', report_category_description: 'LightVehicle', date_qtr: '2018Q2', file_version: 1, file_type_cd: 'F', application_cd: 'S', application_description: 'SINGLE MODEL', file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF', ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF', model_or_platform: 'VOLTA', model_year: '2016', is_attachment: 'false', cmpt_01: '10', cmpt_descr_01: 'PowerTrain', cmpt_02: null, cmpt_descr_02: null, cmpt_03: null, cmpt_descr_03: null, cmpt_04: null, cmpt_descr_04: null, cmpt_05: null, cmpt_descr_05: null }, { ewr_fr_id: '302', ewr_id: 102, yrq: '182', file_sequence: '1', fr_sequence: '102-182-1', manufacturer_name: 'Teryerter', report_category_cd: 'L', report_category_description: 'LightVehicle', date_qtr: '2018Q2', file_version: 1, file_type_cd: 'F', application_cd: 'S', application_description: 'SINGLE MODEL', file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF', ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF', model_or_platform: 'VOLTA', model_year: '2016', is_attachment: 'false', cmpt_01: '10', cmpt_descr_01: 'PowerTrain', cmpt_02: null, cmpt_descr_02: null, cmpt_03: null, cmpt_descr_03: null, cmpt_04: null, cmpt_descr_04: null, cmpt_05: null, cmpt_descr_05: null } ];
const vins = [{ vin: '2FMPK3J84FBB73425', ewr_fr_id: 303 }, { vin: 'USELESS', ewr_fr_id: 302 }, { vin: 'USELESS2', ewr_fr_id: 302 }, { vin: 'VIN5801', ewr_fr_id: 303 } ];
var result = rawResponse.map(item => {
return { ...item,
"vins": vins.filter(obj => obj.ewr_fr_id == item.ewr_fr_id).map(value => value.vin)
};
});
console.log(result);Upvotes: 0
f278f1b2
Reputation: 311
rawResponse.map(item => ({
...item,
vins: vins
.filter(vin => vin.ewr_fr_id.toString() === item.ewr_fr_id.toString())
.map(vin => vin.vin)
}))
Upvotes: 2
IceMetalPunk
Reputation: 5556
You can use a combination of forEach and reduce here:
rawResponse.forEach(response => {
response.vins = vins.reduce((vinsArray, vin) => {
if (+vin.ewr_fr_id === +response.ewr_fr_id) {
vinsArray.push(vin.vin);
}
return vinsArray;
}, []);
});
Upvotes: 0
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