validations_generator

Validations Generator

A validations generator for the package validations

See that package for main setup and it's usage.

Usage

run

pub run build_runner build

Internationalization

The generator is capable of generating message methods which use the intl package.

The string to be translated will be the message you've specified in the annotation or else the default message for the annotation.

In order to enable the generation of intl add the following to your build.yaml configuration.

targets:
  $default:
    builders:
      validations_generator:
        options:
          use_intl: true 

Intl Example

Given an annotation like this:

@Max(
  value: 350,
  message: r'The top speed $validatedValue is higher than $value',
)
int topSpeed;

Without intl the generated code will be:

static String topSpeedMaxMessage(num value, Object validatedValue) {
  return 'The top speed $validatedValue is higher than $value';
}

With intl:

static String topSpeedMaxMessage(num value, Object validatedValue) =>
  Intl.message(
   'The top speed $validatedValue is higher than $value',
   name: 'topSpeedMaxMessage',
   args: [value, validatedValue]
);

Note: Make sure you import the package:intl package from the source file in order for the generated code to find the package.

Debugging

Run pub run build_runner generate-build-script

And use the generated build script for debugging.