mirror of https://github.com/pelias/api.git
35 lines
645 B
35 lines
645 B
var _ = require('lodash'); |
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var SIZE_PADDING = 2; |
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/** |
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* Utility for calculating query result size |
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* incorporating padding for dedupe process |
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*/ |
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function setup() { |
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return function setQuerySize(req, res, next) { |
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if (_.isUndefined(req.clean) || _.isUndefined(req.clean.size)) { |
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return next(); |
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} |
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req.clean.querySize = calculateSize(req.clean.size); |
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next(); |
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}; |
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} |
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/** |
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* Add padding or set to 1 |
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* |
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* @param {number} cleanSize |
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* @returns {number} |
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*/ |
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function calculateSize(cleanSize) { |
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switch (cleanSize || 1) { |
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case 1: |
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return 1; |
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default: |
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return cleanSize * SIZE_PADDING; |
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} |
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} |
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module.exports = setup; |