Showing examples

Generating code from given examples

Description

Using GitHub Copilot, developers can generate code based on provided examples. This can be incredibly useful when you expect the code that produces a specific output. In this pattern, we'll explore how to create a Ruby on Rails model from a given example, such as generating JSON.

Example

The following sample illustrates how you can provide an example in comments and ask GitHub Copilot to generate Ruby on Rails code to create the corresponding model.

# Example of code generation to create the following JSON:
# {
#   "name": "John Smith",
#   "age": 30,
#   "description": "This is a sample description.",
#   "country": "Japan",
#   "title": "Customer Success Architect",
#   "email": "[e-mail]"
# }
rails g model users name:string age:integer description:text country:string title:string email:string

Exercise

• Exercise 1: Based on the following example, generate the Ruby on Rails code to create a model for books.

  {
    "title": "Book",
    "author": "Jane Doe",
    "price": 19.99
  }

• Exercise 2: Experiment with different attributes and types in the JSON example, then generate the corresponding Rails code.

• Exercise 3: Test the generated code in a Rails project to ensure that it creates the expected model.

Checklist for Further Learning

• Does the generated code accurately reflect the given example, creating the appropriate Ruby on Rails code?

• What were the key considerations or challenges when generating code from the provided example?

• How can you further customize or optimize the generated code to suit specific project requirements?