Merge Two Javascript Objects with Multiple Matches Per Key

Question

I have two objects which I am trying to merge. I am almost successfully worked with answer from this question (Merge two unordered objects with different keys but same value?).

The issue is that in my "transpatterns" object, I have two patterns that match "Intercom" key. However, in my output, it only takes the second one. I need it to list both under the same key.

Here is my code:

var hash = {};

var partitions = [{
        '$': {
            uuid: '{0F314A21-B066-B597-BCFA-6EC88CF8813B}'
        },
        name: ['AllPhones']
    },
    {
        '$': {
            uuid: '{4DCF3A89-ADA1-2770-4154-F6E0204D9A71}'
        },
        name: ['Unity_Connection']
    },
    {
        '$': {
            uuid: '{B653BC00-2D90-790C-AE0D-16C3DD2F8EDD}'
        },
        name: ['LAB-Tansform-Calling']
    },
    {
        '$': {
            uuid: '{148C8971-87E4-49D3-1536-69B6C95293B3}'
        },
        name: ['Blocked']
    },
    {
        '$': {
            uuid: '{25534E0F-F69A-FDDB-2FAD-34312BB6CEFC}'
        },
        name: ['LAB-PSTN-Sim-911']
    },
    {
        '$': {
            uuid: '{EC1E144B-2C8C-22CC-F1F5-423CF0343367}'
        },
        name: ['LAB-PSTN-Sim-Local']
    },
    {
        '$': {
            uuid: '{9C7F3223-AE2D-7605-C642-0CEAB81CD555}'
        },
        name: ['LAB-PSTN-Sim-LD']
    },
    {
        '$': {
            uuid: '{15AFADC3-859B-2806-B9D1-5678CE035E3D}'
        },
        name: ['LAB-PSTN-Sim-Intl']
    },
    {
        '$': {
            uuid: '{5DD43CF0-5FB0-A6A0-A71D-D284265F37C7}'
        },
        name: ['Agents']
    },
    {
        '$': {
            uuid: '{7FDE7E11-F821-2491-BB08-E6A41DAB205D}'
        },
        name: ['UCCX']
    },
    {
        '$': {
            uuid: '{17500618-9567-92B9-8C15-95D794094A3F}'
        },
        name: ['Intercom']
    },
    {
        '$': {
            uuid: '{77049844-AB06-F899-26D0-C0940E20D4D5}'
        },
        name: ['Netech_Managers']
    },
    {
        '$': {
            uuid: '{A9DD47E0-1C4A-AAB9-E859-E6EEDB26E6B0}'
        },
        name: ['Assistant_Route_Point']
    }
];

var transpatterns = [{
        '$': {
            uuid: '{3FF82ECB-7364-41DB-176B-65D28885339F}'
        },
        pattern: ['9.19005554444'],
        description: ['Sample Outbound Call Block'],
        routePartitionName: ['Blocked']
    },
    {
        '$': {
            uuid: '{18C2C829-AFAE-DB28-A003-5F1731907D85}'
        },
        pattern: ['555555XXXX'],
        description: ['Inbound DID Range'],
        routePartitionName: ['AllPhones']
    },
    {
        '$': {
            uuid: '{465EFEF8-C405-8D30-2C97-4BF9907C92C6}'
        },
        pattern: ['3100'],
        description: ['Intercom Xlate'],
        routePartitionName: ['Intercom']
    },
    {
        '$': {
            uuid: '{C17E117C-41C7-D459-8CD1-B1D3C4EDC40D}'
        },
        pattern: ['3101'],
        description: ['Intercom Xlate'],
        routePartitionName: ['Intercom']
    }
];


// TESTING NEW
// COMBINE OBJECTS - CREATE HASH
function classify(e) {
    if (hash[e.name] || hash[e.routePartitionName]) {
        Object.keys(e).forEach(function (c) {
            hash[e.name || e.routePartitionName][c] = e[c];
        });
    } else {
        hash[e.routePartitionName || e.name] = e;
    }
}

// COMBINE OBJECTS - ADD VARS to HASH
partitions.forEach(classify);
transpatterns.forEach(classify);

// COMBINE OBJECTS - ITERATE HASH + REMOVE ANY FIELDS
var combo = Object.keys(hash).map(function (e) {
    delete hash[e]['routePartitionName'];
    return hash[e];
});

console.log(combo);

Answer 1

I was able to solve my problem. I determined that I needed to collapse the object with multiple items associated with the same key before I merged the two objects. I was able to use the answer from this question to help me do this. How to combine JSON object with same key and add their other corresponding values?

Here is the code I came up with that seems to work nicely.

// DEFINE VARIABLES
var partitions = [{
        '$': {
            uuid: '{0F314A21-B066-B597-BCFA-6EC88CF8813B}'
        },
        name: ['AllPhones']
    },
    {
        '$': {
            uuid: '{4DCF3A89-ADA1-2770-4154-F6E0204D9A71}'
        },
        name: ['Unity_Connection']
    },
    {
        '$': {
            uuid: '{B653BC00-2D90-790C-AE0D-16C3DD2F8EDD}'
        },
        name: ['LAB-Tansform-Calling']
    },
    {
        '$': {
            uuid: '{148C8971-87E4-49D3-1536-69B6C95293B3}'
        },
        name: ['Blocked']
    },
    {
        '$': {
            uuid: '{25534E0F-F69A-FDDB-2FAD-34312BB6CEFC}'
        },
        name: ['LAB-PSTN-Sim-911']
    },
    {
        '$': {
            uuid: '{EC1E144B-2C8C-22CC-F1F5-423CF0343367}'
        },
        name: ['LAB-PSTN-Sim-Local']
    },
    {
        '$': {
            uuid: '{9C7F3223-AE2D-7605-C642-0CEAB81CD555}'
        },
        name: ['LAB-PSTN-Sim-LD']
    },
    {
        '$': {
            uuid: '{15AFADC3-859B-2806-B9D1-5678CE035E3D}'
        },
        name: ['LAB-PSTN-Sim-Intl']
    },
    {
        '$': {
            uuid: '{5DD43CF0-5FB0-A6A0-A71D-D284265F37C7}'
        },
        name: ['Agents']
    },
    {
        '$': {
            uuid: '{7FDE7E11-F821-2491-BB08-E6A41DAB205D}'
        },
        name: ['UCCX']
    },
    {
        '$': {
            uuid: '{17500618-9567-92B9-8C15-95D794094A3F}'
        },
        name: ['Intercom']
    },
    {
        '$': {
            uuid: '{77049844-AB06-F899-26D0-C0940E20D4D5}'
        },
        name: ['Netech_Managers']
    },
    {
        '$': {
            uuid: '{A9DD47E0-1C4A-AAB9-E859-E6EEDB26E6B0}'
        },
        name: ['Assistant_Route_Point']
    }
];

var transpatterns = [{
        '$': {
            uuid: '{3FF82ECB-7364-41DB-176B-65D28885339F}'
        },
        pattern: ['9.19005554444'],
        description: ['Sample Outbound Call Block'],
        routePartitionName: ['Blocked']
    },
    {
        '$': {
            uuid: '{18C2C829-AFAE-DB28-A003-5F1731907D85}'
        },
        pattern: ['555555XXXX'],
        description: ['Inbound DID Range'],
        routePartitionName: ['AllPhones']
    },
    {
        '$': {
            uuid: '{465EFEF8-C405-8D30-2C97-4BF9907C92C6}'
        },
        pattern: ['3100'],
        description: ['Intercom Xlate'],
        routePartitionName: ['Intercom']
    },
    {
        '$': {
            uuid: '{C17E117C-41C7-D459-8CD1-B1D3C4EDC40D}'
        },
        pattern: ['3101'],
        description: ['Intercom Xlate'],
        routePartitionName: ['Intercom']
    }
];

var hash = {};

// FUNCTION - COMBINE ITEMS WITHIN OBJECT - WITH SAME KEY:routePartitionName
function combine(arr) {
    var combined = arr.reduce(function (result, item) {
        var current = result[item.routePartitionName];

        result[item.routePartitionName] = !current ? item : {
            pattern: current.pattern + ',' + item.pattern,
            description: item.description,
            routePartitionName: item.routePartitionName
        };

        return result;
    }, {});

    return Object.keys(combined).map(function (key) {
        return combined[key];
    });
}

// FUNCTION - COMBINE ITEMS WITHIN OBJECT - RUN
var result = combine(transpatterns);

// FUNCTION - COMBINE OBJECTS - CREATE HASH
function classify(e) {
    if (hash[e.name] || hash[e.routePartitionName]) {
        Object.keys(e).forEach(function (c) {
            hash[e.name || e.routePartitionName][c] = e[c];
        });
    } else {
        hash[e.routePartitionName || e.name] = e;
    }
}

// FUNCTION - COMBINE OBJECTS - ADD VARS to HASH
partitions.forEach(classify);
result.forEach(classify);

// FUNCTION - COMBINE OBJECTS - ITERATE HASH + REMOVE ANY FIELDS
var combo = Object.keys(hash).map(function (e) {
    delete hash[e]['routePartitionName'];
    delete hash[e]['$'];
    return hash[e];
});

console.log(combo);