Expose PLConfig to backend to access server URL.

Author: kevinwang

backend/server.js

@@ -35,6 +35,7 @@ var PrairieStats = requireFrontend("PrairieStats");
 var PrairieModel = requireFrontend("PrairieModel");
 var PrairieRole = requireFrontend("PrairieRole");
 var PrairieGeom = requireFrontend("PrairieGeom");
+var PLConfig = require(path.join(config.frontendDir, "config"));
 var express = require("express");
 var bodyParser = require('body-parser');
 var cookieParser = require('cookie-parser');
@@ -960,6 +961,8 @@ app.get("/qInstances/:qiid/:filename", function(req, res) {
                         var template = _.template(data.toString());
                         var templatedText;
                         try {
+                            var defaultApiServer = (
+                                config.serverType + '://localhost:' + config.serverPort);
                             templatedText = template({
                                 authUID: req.authUID,
                                 authName: req.authName,
@@ -968,7 +971,8 @@ app.get("/qInstances/:qiid/:filename", function(req, res) {
                                 userUID: req.userUID,
                                 qid: qid,
                                 qiid: qiid,
-                                tiid: qInstance.tiid
+                                tiid: qInstance.tiid,
+                                apiServer: PLConfig.apiServer || defaultApiServer
                             });
                         } catch (e) {
                             return sendError(res, 500, "Error rendering template", e);

exampleCourse/questions/fibonacci/checkout.py

@@ -12,7 +12,7 @@
 
 dir_name = 'fib'
 archive_name = 'fib.tar.gz'
-base_url = 'http://localhost:3000'
+base_url = """<%= apiServer %>"""
 
 red = lambda s: '\033[31m%s\033[39m' % s
 green = lambda s: '\033[32m%s\033[39m' % s

frontend/config.js

@@ -1,2 +1,10 @@
-document.PLConfig = {
+var PLConfig = {
 };
+
+if (typeof document !== "undefined") {
+    document.PLConfig = PLConfig;
+}
+
+if (typeof module !== "undefined") {
+    module.exports = PLConfig;
+}