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Informations about the package lawn-mower
LawnMower: Data validation
LawnMower is a light-weight library for GET,POST and FILES validation, based on Laravel and Zend validators.
It's main components are the Request,Validator,Rule and FileUpload objects.
Installation
Basic Usage
The Request Object
The Request object automatically collects all $_GET,$_POST and $_FILES data and passes it to a Validator::class instance.
$_FILES are handled as FileUpload::class instances, a class that conveniently handles file uploads.
Rules
Available rules:
Note: the order is not relevant, all rules are evaluated before execution.
- required - the field must be present and not null, empty string, empty array or empty file.
- nullable - the field can be omitted.
- bail - after this filter, stop executing checks as soon as a filter fails.
- email - field must be a valid e-mail.
- url - field must be a valid url.
- alpha_num - field must contain only letters and numbers.
- alpha - field must contain only letters.
- numeric - field must contain only numbers.
- digits:size - field must contain only numbers characters and must be exact size long.
- mimes:extension1,extension2,... - field must be a valid FileUpload and match the specified extensions. Extension is guessed by file Mime Type and it's binary data.
- file - field must be valid file.
- size:value - field size must be of exact value. Works with arrays, strings and files.
- in:value1,value2,... - field must be one of the specified values.
- gte:value - field must be greater than or equal to value. Works with numbers.
- gt:value - field must be greater than value. Works with numbers.
- lt:value - field must be less than value. Works with numbers.
- lte:value - field must be less than or equal to value. Works with numbers.
- min:value - field must be greater than or equal to value in size. Works with arrays and files.
- max:value - field must be smaller than or equal to value in size. Works with arrays and files.
- integer - field must be a valid integer.
- boolean - field must be a valid boolean. Values accepted are
true,false,0,1,'true','false'. - string - field must be a string.
- date - field must be a valid date.
- slug - field must contain only lowercase letters, numbers and
-. - recaptcha:secret - field is a Google Recaptcha field, if valid it's automatically removed from validated data.
There are 3 ways to pass Rules to Validator: let's take a look at a file field.
By string
By array of strings
By array of instances (or a mix of strings and instances)
The last approach is very useful when you need to pass a $variable as a parameter to Rules.
The complete string => RuleClass mapping is RulesMapping.php file.
Custom Rules
It's possibile to use custom rules by extending the standard LawnMower\Rule::class an passing the instance to the Validator.
FileUpload
This class has some handy methods to help you deal with files uploaded via forms.
If the file is not stored via the $file->store($path) method it will be automatically deleted with the object destructor.
Package developed by apdev, 2021.
