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