staffmanager/app/Helpers/ContextAwareValidator.php
Miguel Nogueira bca6020ab0 Add ability to edit forms and add new fields
This commit adds the ability to edit and modify existing forms.
On the technical side, it also adds a new reusable validation Facade which helps reduce duplicated code.
2020-07-15 06:48:49 +01:00

73 lines
2.6 KiB
PHP

<?php
namespace App\Helpers;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Collection;
class ContextAwareValidator
{
/**
* The getValidator() method will take an array of fields from the request body, iterates through them,
* and dynamically adds validation rules for them. Depending on parameters, it may or may not generate
* a form structure for rendering purposes.
*
* This method is mostly meant by internal use by means of static proxies (Facades), in order to reduce code repetition;
* Using it outside it's directed scope may cause unexpected results; For instance, the method expects inputs to be in array format, e.g. myFieldNameID1[],
* myFieldNameID2[], and so on and so forth.
*
* This isn't checked by the code yet, but if you're implementing it this way in the HTML markup, make sure it's consistent (e.g. use a loop).
*
* P.S This method automatically ignores the CSRF token for validation.
*
* @param array $fields The request form fields
* @param bool $generateStructure Whether to incldue a JSON-ready form structure for rendering
* @param bool $includeFormName Whether to include formName in the list of validation rules
* @return Validator|Collection A validator instance you can use to check for validity, or a Collection with a validator and structure (validator, structure)
*/
public function getValidator(array $fields, bool $generateStructure = false, bool $includeFormName = false)
{
$formStructure = [];
$validator = [];
$excludedNames = [
'_token',
'_method',
'formName'
];
if ($includeFormName)
{
$validator['formName'] = 'required|string|max:100';
}
foreach ($fields as $fieldName => $field)
{
if(!in_array($fieldName, $excludedNames))
{
$validator[$fieldName . ".0"] = 'required|string';
$validator[$fieldName . ".1"] = 'required|string';
if ($generateStructure)
{
$formStructure['fields'][$fieldName]['title'] = $field[0];
$formStructure['fields'][$fieldName]['type'] = $field[1];
}
}
}
$validatorInstance = Validator::make($fields, $validator);
return ($generateStructure) ?
collect([
'validator' => $validatorInstance,
'structure' => json_encode($formStructure)
])
: $validatorInstance;
}
}