1. module express-ejs-layouts
   1. function express-ejs-layouts (req, res, next)

module express-ejs-layouts

function express-ejs-layouts (req, res, next)

• description and source-code

  express-ejs-layouts = function (req, res, next) {
    var render = res.render;
  
    res.render = function (view, options, fn) {
      var layout, self = this, app = req.app,
        defaultLayout = app.get('layout');
  
      options = options || {};
      if (typeof options === 'function') {
        fn = options;
        options = {};
      }
  
      if (options.layout === false || ((options.layout || defaultLayout) === false)) {
        render.call(res, view, options, fn);
        return;
      }
  
      layout = options.layout || res.locals.layout || defaultLayout;
      if (layout === true || layout === undefined) {
        layout = 'layout';
      }
  
      options.contentFor = contentFor;
      render.call(res, view, options, function (err, str) {
        var l, locals;
  
        if (err) { return fn ? fn(err) : next(err); }
  
        locals = {
          body: str,
          defineContent: function(contentName) { return locals[contentName] || ''; }
        };
        for (l in options) {
          if (options.hasOwnProperty(l) && l !== 'layout' && l !== 'contentFor') {
            locals[l] = options[l];
          }
        }
  
        if (options.extractScripts === true || (options.extractScripts === undefined && app.get('layout extractScripts') === true)) {
          locals.script = '';
          parseScripts(locals);
        }
  
        if (options.extractStyles === true || (options.extractStyles === undefined && app.get('layout extractStyles') === true)) {
          locals.style = '';
          parseStyles(locals);
        }
  
        if (options.extractMetas === true || (options.extractMetas === undefined && app.get('layout extractMetas') === true)) {
          locals.meta = '';
          parseMetas(locals);
        }
  
        parseContents(locals);
        render.call(self, layout, locals, fn);
      });
    };
    next();
  }

• example usage

  n/a