@balderdash/sails-edge/lib/hooks/views/layoutshim.js

API-driven framework for building realtime apps, using MVC conventions (based on Express and Socket.io)

var path = require('path');

/**
 * Implement EJS layouts (a la Express 2)
 *
 * TODO:
 * Extrapolate this functionality to a separate hook
 * to make it easier for folks to extend it with support
 * for other view engines (e.g. hbs)
 *
 * @param  {Sails}   sails
 */
module.exports = function layoutshim (sails) {

  // If layout config is set, attempt to use view partials/layout
  if (sails.config.views.layout) {

    // If `http` hook is not enabled, we can't use partials
    // (depends on express atm)
    if (sails.config.hooks.http) {

      // Get the view engine name
      var engineName = sails.config.views.engine.name || sails.config.views.engine.ext;

      // Use ejs-locals for all ejs templates
      if (engineName === 'ejs') {
        var ejsLayoutEngine = require('ejs-locals');
        sails.log.verbose('Overriding ejs engine config with ejslocals to implement layout support...');
        sails.config.views.engine.fn = ejsLayoutEngine;
      }

      // Use express-handlebars for handlebars templates, and set up layout functionality
      else if (engineName === 'handlebars') {
        var exphbs = require('express-handlebars');
        sails.log.verbose('Overriding handlebars engine with express-handlebars to implement layout support...');
        var hbs = exphbs.create({
          defaultLayout: path.join('..', (sails.config.views.layout + '.' + (sails.config.views.extension || 'handlebars')) || ''),
          helpers: sails.config.views.helpers || {},
          partialsDir: path.join('views', sails.config.views.partials || ''),
          extname: sails.config.views.extension
        });

        sails.config.views.engine.fn = hbs.engine;
      }
    }
  }
};