1 | module.exports = function( vs ){
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2 | // validate required params
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3 | if( !vs.isset('popularity:field') ||
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4 | !vs.isset('popularity:modifier') ){
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5 | return null;
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6 | }
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7 |
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8 | return {
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9 | field_value_factor: {
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10 | modifier: vs.var('popularity:modifier'),
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11 | field: vs.var('popularity:field'),
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12 | missing: 1
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13 | },
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14 | weight: vs.var('popularity:weight')
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15 | };
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16 |
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17 | };
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