Sample\Application::run()

Complexity

Conditions	1
Paths	1

Size

Total Lines	63
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php namespace Sample;
    public function run()
    {
        // Validation rules for input are
        // - `email` must be a string and a valid email value (as FILTER_VALIDATE_EMAIL describes)
        // - `first_name` required in input, must be a string with length from 1 to 255 characters
        // - `last_name` could be either `null` or if given it must be a string with length from 1 to 255 characters
        // - `payment_plan` must be a valid index for data in database (we will emulate request to database)
        // - `interests` must be an array of non-empty strings (any number of items, no limit for max length)

        $invalidInput = [
            'email'        => 'john.dow',
            //'first_name' => 'John',

67% of this comment could be valid code. Did you maybe forget this after debugging?

            'last_name'    => '',
            'payment_plan' => 123,
            'interests'    => ['leisure', false, 'php', 321],
        ];

        $validInput = [
            'email'        => 'john@dow.com',
            'first_name'   => 'John',
            'last_name'    => null,
            'payment_plan' => 2,
            'interests'    => ['leisure', 'php', 'programming'],
        ];

        // Having app specific rules separated makes the code easier to read and reuse.
        // Though you can have the rules in-lined.

        $rules = [
            'email'        => v::isEmail(),
            'first_name'   => v::isRequiredString(255),
            'last_name'    => v::isNullOrNonEmptyString(255),
            'payment_plan' => v::isExistingPaymentPlan(),
            'interests'    => v::isListOfStrings(),
        ];

        $this->console('Invalid data' . PHP_EOL);
        $this->printErrors(
            v::validator(v::arrayX($rules))->validate($invalidInput)
        );

        $this->console(PHP_EOL . 'Valid data' . PHP_EOL);
        $this->printErrors(
            v::validator(v::arrayX($rules))->validate($validInput)
        );

        // Note that error message placeholders like `first_name` are replaced with
        // more readable such as `First Name` and others.
        //
        // The output would be
        // -------------------------------------------------------------------------------------------------------
        // Invalid data
        // Param `email` failed for `john.dow` with: The `Email address` value should be a valid email address.
        // Param `last_name` failed for `` with: The `Last Name` value should be between 1 and 255 characters.
        // Param `payment_plan` failed for `123` with: The `Payment plan` value should be an existing payment plan.
        // Param `interests` failed for `` with: The `Interests` value should be a string.
        // Param `interests` failed for `321` with: The `Interests` value should be a string.
        // Param `first_name` failed for `` with: The `First Name` value is required.
        //
        // Valid data
        // No errors
        // -------------------------------------------------------------------------------------------------------
    }