lunch/js/components/RatioBarChart.js

39 lines
1020 B
JavaScript

var React = require('react');
var BarChart = require('../components/BarChart')
module.exports = React.createClass({
displayName: "RatioBarChart",
render: function() {
/* Expects 'this.props.numerator' and '.denominator' to be in the form:
* [
* {'Label': 'foo', 'Value': 1.4},
* {'Label': 'bar', 'Value': 8}
* ]
*/
if (this.props.denominator.length < 1)
return (<div />);
var numeratorMap = {};
for (var i = 0; i < this.props.numerator.length; i++) {
var val = this.props.numerator[i];
numeratorMap[val.Label] = val.Value;
}
var data = []
for (var i = 0; i < this.props.denominator.length; i++) {
var val = this.props.denominator[i];
if (numeratorMap.hasOwnProperty(val.Label)) {
data.push({'Label': val.Label, 'Value': 1.0*numeratorMap[val.Label]/val.Value});
} else {
data.push({'Label': val.Label, 'Value': 0});
}
}
data.sort(function(a, b){return b.Value - a.Value;});
return (
<BarChart title={this.props.title} data={data} />
);
}
});