Database Table Lookup

About This Space

This interactive app prompts the user for key fields to lookup a database record and displays the results


Last updated on November 19, 2019

Public Permissions:   View   Open/Fork   Run   Comment  

Database Table Lookup Template

This template provides an example of a simple database inquiry and the use of database-driven components.

Database Driven Auto-Complete

The customer number textbox provides auto-complete functionality that shows available customer numbers, along with the corresponding customer names. The user simply starts typing into the box to see available choices.

Screenshot

This functionality is accomplished without any extra Node.js code thanks to the database-driven widget capabilities found in NodeRun. The textbox widget has the following properties set for auto-complete:

  • choices database table
  • choices options field
  • choices value field

Screenshot

Other properties can help further refine the auto-complete functionality:

  • choices selection criteria
  • choices parameter value
  • max choices
  • contains match
  • case sensitive

Retrieving Full Customer Information

Customer information is retrieved and then placed on the screen using pjs.query(), which accepts an SQL statement along with any parameters to bind to the SQL. The results of pjs.query() are returned into a JavaScript array without the need for a callback function. This simplifies top-down business application programming.

Controlling Visibility

Widgets on the screen can be bound to fields or variables within your Node.js code. For example, the "visibility" property of the widget that shows the Invalid Customer Number message was bound to a boolean field named invalid. Now, we can easily trigger the message from our Node.js code just by setting invalid to true or false.

API

Be the first to comment:      

Comments

Write Preview Markdown: bold italic code link
Post

More Spaces By klaw (@klaw)

Filters:

Popular Recent

A Hello World app with both dynamic output and input fields

8271

0

0

Have some fun with this Connect 4 application!

13163

1

8

This is a variation on the Connect 4 App that will enable multiplayer support.

13153

2

0

This app consumes a web service and display the information in a grid

9208

0

0

This app consumes a web service and display the information in a grid

9059

0

0

This app consumes a web service and display the information in a grid

8588

0

0

Expanded version of the Grid template to add additional paging buttons and modify how the data is supplied to the Grid widget.

12205

0

3

This interactive app prompts the user for key fields to lookup a database record and displays the results

8946

0

0

This interactive app prompts the user for key fields to lookup a database record and displays the results

8990

0

0

This is a full database maintenance CRUD application with view, change, add, and delete capabilities

8337

0

0

This is a full database maintenance CRUD application with view, change, add, and delete capabilities

8323

0

0

This is a full database maintenance CRUD application with view, change, add, and delete capabilities

7448

0

0