Ghost/core/frontend/helpers/facebook_url.js

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// # Facebook URL Helper
// Usage: `{{facebook_url}}` or `{{facebook_url author.facebook}}`
//
// Output a url for a facebook username
const {socialUrls} = require('../services/proxy');
const {localUtils} = require('../services/handlebars');
// We use the name facebook_url to match the helper for consistency:
module.exports = function facebook_url(username, options) { // eslint-disable-line camelcase
if (!options) {
options = username;
username = localUtils.findKey('facebook', this, options.data.site);
}
if (username) {
return socialUrls.facebook(username);
}
return null;
};