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Using Databases & Scripting in Projects

Course Overview​

Take your existing SQL and Python knowledge and use it in Ignition. In this class students will create project resources built around existing database data. Design bi-directional data displays, process JSON objects, and use complex Perspective components while exploring error handling. Students will work with multiple data sets to focus on understanding the data and creating useful Ignition resources based on it. By the end of this class, students will be able to enhance existing displays, design projects to modify SQL databases while maintaining data integrity, and plan scalable scripting/SQL strategies.

Length: 4 days

Who Is This Class For? What Are the Class Expectations?​

This class is for those that can read and write basic SQL queries or basic programs in Python or other object-oriented programming languages and want to integrate these skills directly into their Ignition Project design.

Important

This is a Level 2 class, prior experience with Ignition is required and Core Certification is recommended.

Suggested Class Pre-Requisites:​

  • Working knowledge of SQL and Python languages, or completing the Level 1 DB&S class.
  • Completed Inductive University.

Topics Covered​

Intermediate SQL and Python​

  • Design Complex Queries For Tailored Result Sets

Managing Sets of Linked Database Tables​

  • Classify the Relationship Between Key Columns in Different SQL Tables to Query and Update Your Database While Maintaining Data Integrity

Data Transformation​

  • Develop Scripts to Transform Query Data Into Perspective Object Properties

Error Handling​

  • Implement Error Handling Techniques to Write Scripts That Respond to and Recover From Errors

Component Events​

  • Fine-Tune the User Experience and Control Exactly How Data is Queried and Updated Using Component Events to Write Scripts That Add Enhanced Features and Functionality to Your Applications.

Importing Python libraries​

  • Import Third-Party Python 2 Libraries to Extend Ignition's Built-In Scripting Functions

Working With Complex Components​

  • Write SQL Queries and Python Scripts to Generate Sets of Complex Objects to Dynamically Populate Perspective Properties

Processing and Generating Complex Objects​

  • Write Scripts That Interact With Members and Methods of Complex Objects

Custom Gateway Logging​

  • Add System Functions to Scripts to Write to the Gateway Wrapper Logs With Information, Warning, or Error Logs

Find and Read Existing Documentation​

  • Identify and Effectively Implement Information From Public Documentation on Ignition Concepts, SQL & Python Syntax, and Other Systems

Project Scripting Library​

  • Create Project-Global Functions and Objects To Use Across All Project Scripts

Batch Inserts​

  • Improve Efficiency By Planning and Building Mechanisms To Control Batch Inserts to the Database

Message Sending & Component Message Handlers​

  • Synchronize Data Flow and Displays Across a Session or Across Multiple Sessions With Component Message Handlers

Value Change Scripts​

  • Run Specific Instructions When the Value of a Property Changes