How to develop a JDBC Form Store Binder

In this tutorial, we will following the guideline of developing a plugin to develop our JDBC Form Store Binder plugin. Please also refer to the very first tutorial How to develop a Bean Shell Hash Variable and also the following JDBC related plugin for more details steps.

• How to develop a JDBC Options Binder
• How to develop a JDBC Form Load Binder

1. What is the problem?

For integration purpose, we would like to store our form data to a different database table instead of Joget form data table.

2. What is your idea to solve the problem?

Joget Workflow has provided a plugin type called Form Store Binder Plugin. We will develop one to support JDBC connection and custom query to store form data.

3. What is the input needed for your plugin?

To develop a JDBC Store binder, we will need the JDBC connection setting and also the custom query to store the form data based the collected form data.

1. Datasource: Using custom datasource or Joget default datasource
2. Custom JDBC Driver: The JDBC driver for custom datasource
3. Custom JDBC URL: The JDBC connection URL for custom datasource
4. Custom JDBC Username: The username for custom datasource
5. Custom JDBC Password: The password for custom datasource
6. SQL Check Exist Query: The query to check whether an insert or update query should be execute.
7. SQL Insert Query: The query to insert form data. 
8. SQL Update Query: The query to insert form data. 
   
9. Auto Generate Id: A checkbox to indicate the plugin should generate an UUID for new record.

We will have to support a syntax to inject the form data to the query. "{foreignKey}" can be used for Multi Rows storing.

 Example: INSERT INTO app_fd_test VALUES ({id}, {name}, {email}, {phone}, {foreignKey});

4. What is the output and expected outcome of your plugin?

All submitted data will store accordingly based on the check/insert/update query.

5. Is there any resources/API that can be reuse?

We can refer to the implementation of other available Form Store Binder plugins. Joget default datasource can be retrieve with AppUtil.getApplicationContext().getBean("setupDataSource").

6. Prepare your development environment

We need to always have our Joget Workflow Source Code ready and builded by following this guideline. 

The following of this tutorial is prepared with a Macbook Pro and Joget Source Code version 5.0.0. Please refer to Guideline of developing a plugin for other platform command.

Let said our folder directory as following. 

- Home
  - joget
    - plugins
    - jw-community
      -5.0.0

The "plugins" directory is the folder we will create and store all our plugins and the "jw-community" directory is where the Joget Workflow Source code stored.

Run the following command to create a maven project in "plugins" directory.

cd joget/plugins/
~/joget/jw-community/5.0.0/wflow-plugin-archetype/create-plugin.sh org.joget.tutorial jdbc_store_binder 5.0.0

Then, the shell script will ask us to key in a version for your plugin and ask us for confirmation before generate the maven project.

Define value for property 'version':  1.0-SNAPSHOT: : 5.0.0
[INFO] Using property: package = org.joget.tutorial
Confirm properties configuration:
groupId: org.joget.tutorial
artifactId: jdbc_store_binder
version: 5.0.0
package: org.joget.tutorial
Y: : y

We should get "BUILD SUCCESS" message shown in our terminal and a "jdbc_store_binder" folder created in "plugins" folder.

Open the maven project with your favour IDE. I will be using NetBeans.  

7. Just code it!

 a. Extending the abstract class of a plugin type

package org.joget.tutorial;
 
import org.joget.apps.app.service.AppPluginUtil;
import org.joget.apps.app.service.AppUtil;
import org.joget.apps.form.model.Element;
import org.joget.apps.form.model.FormBinder;
import org.joget.apps.form.model.FormData;
import org.joget.apps.form.model.FormRowSet;
import org.joget.apps.form.model.FormStoreBinder;
import org.joget.apps.form.model.FormStoreElementBinder;
import org.joget.apps.form.model.FormStoreMultiRowElementBinder;
 
public class JdbcStoreBinder extends FormBinder implements FormStoreBinder, FormStoreElementBinder, FormStoreMultiRowElementBinder {
    
    private final static String MESSAGE_PATH = "messages/JdbcStoreBinder";
    
    public String getName() {
        return "JDBC Store Binder";
    }
 
    public String getVersion() {
        return "5.0.0";
    }
    
    public String getClassName() {
        return getClass().getName();
    }
 
    public String getLabel() {
        //support i18n
        return AppPluginUtil.getMessage("org.joget.tutorial.JdbcStoreBinder.pluginLabel", getClassName(), MESSAGE_PATH);
    }
    
    public String getDescription() {
        //support i18n
        return AppPluginUtil.getMessage("org.joget.tutorial.JdbcStoreBinder.pluginDesc", getClassName(), MESSAGE_PATH);
    }
 
    public String getPropertyOptions() {
        return AppUtil.readPluginResource(getClassName(), "/properties/jdbcStoreBinder.json", null, true, MESSAGE_PATH);
    }
 
    public FormRowSet store(Element element, FormRowSet rows, FormData formData) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
}