From e68e006dcad03fc872a9c51cdda8e30733c03ee0 Mon Sep 17 00:00:00 2001
From: Alan Bernstein <alan.aaron.bernstein@gmail.com>
Date: Tue, 25 Apr 2017 13:23:19 -0500
Subject: [PATCH] Replace "database not found" error response with helpful
 message

This is kludgy, we may change the way the message is displayed,
or replace other raw error responses, we can revisit later.
---
 webui/assets/main.js | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/webui/assets/main.js b/webui/assets/main.js
index a92ba8830..41efd6df2 100644
--- a/webui/assets/main.js
+++ b/webui/assets/main.js
@@ -93,11 +93,22 @@ class REPL {
     createSingleOutput(res) {
       var node = document.createElement("div");
       node.classList.add('output');
+      var output_string = res['output']
+      var output_json = JSON.parse(output_string)
       var result_class = "result-output"
-      var output = JSON.parse(res['output'])
-      if("error" in output) {
+
+      if("error" in output_json) {
         result_class = "result-error"
+        if(output_json['error'] == 'database not found') {  // TODO db->index
+          output_string = `Error: index not found<br />
+          $ curl -XPOST "http://127.0.0.1:10101/db/test" -d '{"options": {"columnLabel": "col"}}' # create a database<br />
+          $ curl -XPOST "http://127.0.0.1:10101/db/test/frame/foo" -d '{"options": {"rowLabel": "row"}}' # create a frame<br />
+          SetBit(row=0, col=0, frame=foo) # Use PQL to set a bit
+          `
+        }
       }
+
+
       var markup =`
         <div  class="panes">
           <div class="pane active">
@@ -118,7 +129,7 @@ class REPL {
                 <em>${res.querytime_ms} ms</em>
               </div>
               <div class="${result_class}">
-                ${res.output}
+                ${output_string}
               </div>
             </div>
           </div>