| 1 | var _ = require('underscore');
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| 2 |
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| 3 | function getIntersection(template, inputObj) {
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| 4 |
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| 5 | var templateKeys = _.keys(template);
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| 6 | var inputObjKeys = _.keys(inputObj);
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| 7 | var intersectionKeys = _.intersection(templateKeys, inputObjKeys);
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| 8 |
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| 9 | var objKeys = _.filter(intersectionKeys, function(key) {
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| 10 | return _.isObject(template[key]) && _.isObject(inputObj[key]);
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| 11 | });
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| 12 |
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| 13 | var valueKeys = _.difference(intersectionKeys, objKeys);
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| 14 | var valueIntersection = _.pick(inputObj, valueKeys);
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| 15 |
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| 16 | if(_.size(objKeys) <= 0)
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| 17 | return valueIntersection;
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| 18 |
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| 19 | var objIntersection = {};
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| 20 |
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| 21 | _.each(objKeys, function(key) {
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| 22 | objIntersection[key] = getIntersection(template[key], inputObj[key]);
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| 23 | });
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| 24 |
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| 25 | return _.extend({}, valueIntersection, objIntersection);
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| 26 |
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| 27 | };
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| 28 |
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| 29 | module.exports = getIntersection;
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| 30 |
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