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Example code of rocketfellows/country-vat-number-format-validator

Informations about the package country-vat-number-format-validator

Configurable country vat number format validator.

The package provides configurable services for validating country vat number formats.

Installation.

Dependencies.

References.

The packages below can be connected to the validator right away because they contain preconfigured validators for the following countries:

Interface for validating country vat number format.

Service for checking the vat number format for the country: rocketfellows\CountryVatNumberFormatValidator\VatNumberFormatValidatorService

Function to check if the country vat number format is correct: rocketfellows\CountryVatNumberFormatValidator\VatNumberFormatValidatorService::validateCountryVatNumber

Input parameters:

Throwable exceptions:

Return value is instance of rocketfellows\CountryVatNumberFormatValidator\VatNumberFormatValidationResult.

VatNumberFormatValidationResult description:

Usage example of preconfigured validators for countries.

To use the preconfigured validators for a country, you need to install the appropriate package from the list above from section "References".

Example of instantiating VatNumberFormatValidatorService:

Valid country vat number format examples.

Austria vat number.

Validation result:

Germany vat number.

Validation result:

Invalid country vat number format examples.

Austria vat number.

Validation result:

Germany vat number.

Validation result:

VatNumberFormatValidator.

In case you don't need the details of the validation process of the country vat number format, but just want to get the answer "vat number is valid or not", you can use the rocketfellows\CountryVatNumberFormatValidator\VatNumberFormatValidator.

Class methods:

VatNumberFormatValidator takes an object of type VatNumberFormatValidatorService as a dependency, which you must configure in advance.

Throwable exceptions:

VatNumberFormatValidator configuration example.

VatNumberFormatValidator usage examples.

Austria valid vat number validation:

Validation result:

Austria invalid vat number validation:

Validation result:

Expandability.

If you need to expand the list of countries whose vat numbers you want to check, you will need to do the following:

Example

Suppose we need to add a vat number validator for the country Qatar.

First we need to implement the vat number validator for the country - a class that implements the interface rocketfellows\CountryVatFormatValidatorInterface\CountryVatFormatValidatorInterface.

For simplicity, let's assume that a valid vat number is a string that contains only numbers and consists of three characters.

To implement the validator interface, we use the prepared abstract class rocketfellows\CountryVatFormatValidatorInterface\CountryVatFormatValidator.

Validator implementation:

Next, you need to associate the validator with the country through the configurator class. Class must implement rocketfellows\CountryVatNumberFormatValidatorsConfig\CountryVatNumberFormatValidatorsConfigInterface.

Config class:

And that's almost all, we just need to connect the new configuration to the service rocketfellows\CountryVatNumberFormatValidator\VatNumberFormatValidatorService.

VatNumberFormatValidatorService configuration:

As you can see, in addition to the vat validators for Austria and Germany, we have included a validator for the country Qatar.

An example of a valid vat number for the country Qatar from our example:

Result:

An example of an invalid vat number for the country Qatar from our example:

Result:

As you can see it works great.

Contributing.

Welcome to pull requests. If there is a major changes, first please open an issue for discussion.

Please make sure to update tests as appropriate.

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