Where is the ACME demo data stored?!

19 Oct '13, 09:37 PM
Forum Forum Starter - Level 2

Hi, I'm testing some changes I've made in the Acme demo project. I've installed it and registered as a user and the genereate/run all works fine.

But if I connect to the Acme database (using SQuirrel for the client) to query the table contents they are all empty! The extra tables I added are there along with the Acme demo tables. My tables contain the data that I included, but each Acme table (user, products, store, etc) all has a row count of zero. Does anyone know where this data is located?

I'm using the same connection string in SQuirrel as the demo project "jdbc:derby://localhost:50123/AcmeDB;create=true", username=manager. I'm querying the APP schema, all the tables are there.

One final issue: when I tried to build a power list in the demo WR project that used my table, I could add my table and fields to the list, but at run-time I received an error "No such table APP.SIGN". But in my SQuirrel connection I can see and query both my new tables and the Acme tables. Does the Acme tables point off to a reference or something?!

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Forum Starter - Level 2

See comment above about 2 AcmeDbs : one in Tomcat, one in Webratio's workspace:

So it makes sense that there's a ./Tomcat/bin/AcmeDb! After all, your Development database isn't going to be what's running in Production environment (viz.: Tomcat).

So I'm thinking that's obviously gotta be where WebRatio is initialising the data I'm seeing in my web site. After all, they know what they're doing ... even if we don't!

So in the IDE the connection to AcmeDb must be to the ./workspace version of the AcmeDB for design-time. That makes sense.

So it stands to reason that my SQuirrel connection (* using the same connection parameters as what I'm using in my Custom Unit) must be connecting to the ./workspace (design-time) version of AcmeDB... because I can't imagine the good people at WebRatio (or Acme) populating their Development database instance with their data.

Therefore my connection string in SQuirrel and my custom unit are pointing to Dev instead of Prod.

So, providing this logic is correct, the real question is : If I want to connect to the tomcat's ./webapp/bin/AcmeDb from within my custom unit while playing in the WebRatio runtime space how do I do it????

At the moment I'm using the following code :

    String DbConnnection = "jdbc:derby://localhost:50123/AcmeDb;";
    NetworkServerControl serverControl = new NetworkServerControl(
    serverControl.start (null);
    con = DriverManager.getConnection(Environment.DbConnnection); 
catch (Exception ee)
    System.out.println("Can't connect to port for Db: " + ee.getMessage());

Help me Obiwan Kenobi! Your my only hope!

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Forum Starter - Level 2

Before I start ... please has anyone passed parameters using the wr:AjaxURL tag in their Custom Unit?! I really would like a solution to AjaxUrl tag and getting parameters from Http request.

So ... a few final comments for anyone trying to get their Custom Unit working as a data-aware plugin used within a different WebRatio Web project:

Firstly if you uses SQuirrel (or other UI) to connect to the production instance you need a connection string such as :

jdbc:derby://localhost:50123/C:/WebRatio/WebRatio Personal 7.2.0/workspace/.metadata/.plugins/com.webratio.commons.db/derby/AcmeDB;create=true;password=manager

Secondly, copying just the data model classes and mapping files into your Custom Unit doesn't mean that WebRatio will crate the tables in the AcmeDb (prod). Synchronizing your data model will create any tables from the data model into the development version of AcmeDb, but fails to create the tables in the target derby production instance. This is because there are Acme scripts that create the database and populate it with the play data.

Therefore you need to copy the create table / alter table scripts from:






If you read the articleQuerying with Hibernate there is a paragraph:

I'm not sure what the the "hibernate configuration files" are? Just what do we do with these? Which specific files? And exactly where do they go?! If the hibernate config files are not copied, is that why my non-Acme tables are being created? Or is it just because of the demo AcmeDb assumptions made in it's auto-init pre-configuration.

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