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<?php |
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namespace Zurbaev\Forms; |
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use Illuminate\Support\Str; |
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abstract class AbstractForm |
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{ |
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/** |
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* @var array |
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*/ |
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protected $validTypes = [ |
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'hidden', 'text', 'textarea', 'file', 'select', 'checkbox', 'radio', |
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]; |
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/** |
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* @var array |
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*/ |
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protected $typesWithOwnMarkup = [ |
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'hidden', 'checkbox', |
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]; |
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/** |
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* @var string |
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*/ |
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protected $defaultFieldType = 'text'; |
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/** |
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* @var bool |
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*/ |
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protected $truncatePasswords = true; |
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/** |
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* @var array |
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*/ |
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protected $excludeFromExtra = [ |
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'method', 'action', 'class', 'enctype', |
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]; |
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/** |
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* Get the form's HTTP method. |
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* |
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* @return string |
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*/ |
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abstract public function method(); |
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/** |
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* Get the form's action URL. |
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* |
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* @return string |
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*/ |
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abstract public function action(); |
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/** |
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* Get the form's fields. |
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* |
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* @return array |
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*/ |
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abstract public function fields(); |
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/** |
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* Additional form options. |
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* |
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* @return array |
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*/ |
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public function options() |
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{ |
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return []; |
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} |
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/** |
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* Determines if current form contains file fields. |
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* |
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* @return bool |
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*/ |
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public function withUploads() |
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{ |
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return false; |
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} |
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/** |
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* Form values (editing mode). |
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* |
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* @return array |
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*/ |
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public function values() |
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{ |
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return []; |
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} |
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/** |
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* Unique form ID. |
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* |
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* @return string |
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*/ |
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public function id() |
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{ |
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return 'abstract-form-'.rand(); |
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} |
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/** |
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* Get the submit button label. |
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* |
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* @return string |
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*/ |
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public function submitLabel() |
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{ |
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return 'Submit'; |
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} |
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/** |
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* Get the cancel button label. |
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* |
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* @return string |
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*/ |
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public function cancelLabel() |
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{ |
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return 'Cancel'; |
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} |
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/** |
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* Get the form option value. |
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* |
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* @param string $path |
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* @param null $default |
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* |
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* @return mixed |
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*/ |
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public function get(string $path, $default = null) |
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{ |
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return array_get($this->options(), $path, $default); |
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} |
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/** |
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* Form's extra attributes. |
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* |
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* @param array $attributes |
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* |
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* @return string |
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*/ |
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public function extraAttributes(array $attributes = []) |
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{ |
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return collect($this->onlyExtraAttributes($attributes)) |
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->map(function (string $value, string $attribute) { |
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return $attribute.'="'.$value.'"'; |
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}) |
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->implode(' '); |
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} |
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/** |
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* Get only extra form attributes. |
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* |
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* @param array $attributes |
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* |
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* @return array |
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*/ |
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public function onlyExtraAttributes(array $attributes = []) |
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{ |
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$attributes = $attributes ?: $this->get('attributes', []); |
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foreach ($this->excludeFromExtra as $attribute) { |
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if (isset($attributes[$attribute])) { |
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unset($attributes[$attribute]); |
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} |
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} |
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return $attributes; |
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} |
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/** |
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* Get the form field by name. |
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* |
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* @param string $name |
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* |
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* @return array|null |
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*/ |
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public function getField(string $name) |
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{ |
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return array_get($this->fields(), $name); |
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} |
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/** |
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* Determines if given field is a valid field. |
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* |
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* @param array $field |
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* |
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* @return bool |
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*/ |
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public function isValidField(array $field) |
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{ |
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return in_array($this->fieldType($field), $this->validTypes); |
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} |
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/** |
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* Generates ID for given input element. |
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* |
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* @param string $name |
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* |
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* @return string |
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*/ |
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public function inputId(string $name) |
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{ |
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return 'input'.Str::ucfirst(Str::camel(Str::lower($name))); |
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} |
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/** |
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* Determines if given field should be rendered with its markup only. |
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* |
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* @param array $field |
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* |
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* @return bool |
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*/ |
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public function fieldShouldUseOwnMarkup(array $field) |
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{ |
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return in_array($this->fieldType($field), $this->typesWithOwnMarkup); |
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} |
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/** |
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* Get the form field type. |
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* |
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* @param array $field |
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* |
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* @return string |
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*/ |
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public function fieldType(array $field) |
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{ |
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return Str::lower($field['type'] ?? $this->defaultFieldType); |
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} |
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/** |
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* Get the field attribute value. |
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* |
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* @param array $field |
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* @param string $attribute |
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* @param null $default |
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* |
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* @return mixed |
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*/ |
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public function fieldAttributeValue(array $field, string $attribute, $default = null) |
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{ |
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return array_get($field, 'attributes.'.$attribute, $default); |
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} |
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/** |
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* Determines if given field type is 'password'. |
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* |
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* @param array $field |
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* |
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* @return bool |
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*/ |
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public function isPasswordField(array $field) |
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{ |
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return $this->fieldAttributeValue($field, 'type') === 'password'; |
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} |
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/** |
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* Determines if form should truncate value for given field. |
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* |
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* @param array $field |
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* |
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* @return bool |
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*/ |
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public function shouldTruncateValue(array $field) |
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{ |
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if ($this->isPasswordField($field) && $this->truncatePasswords) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Get the field value. |
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* |
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* @param string $name |
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* @param array $field |
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* @param null $default |
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* |
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* @return mixed|string |
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*/ |
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public function fieldValue(string $name, array $field, $default = null) |
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{ |
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if ($this->shouldTruncateValue($field)) { |
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return ''; |
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} |
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$lookupName = $field['value_lookup'] ?? $name; |
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$value = array_get($this->values(), $lookupName, $default); |
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$oldValue = old($name); |
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$mutatorMethod = Str::camel('get_'.$name.'_value'); |
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if ($oldValue && method_exists($this, $mutatorMethod)) { |
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return call_user_func([$this, $mutatorMethod], $oldValue); |
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} |
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return $oldValue ?? $value; |
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} |
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/** |
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* Get the field CSS classes. |
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* |
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* @param array $field |
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* @param bool $prependWithSpace = true |
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* |
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* @return string |
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*/ |
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public function fieldClasses(array $field, bool $prependWithSpace = true) |
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{ |
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$classes = array_get($field, 'attributes.class', ''); |
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if (!$classes) { |
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return ''; |
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} |
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return ($prependWithSpace ? ' ' : '').$classes; |
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} |
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/** |
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* Get additional field attributes. |
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* |
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* @param array $field |
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* |
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* @return string |
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*/ |
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public function fieldAttributes(array $field) |
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{ |
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if (empty($field['attributes'])) { |
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return ''; |
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} |
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return $this->extraAttributes($field['attributes']); |
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} |
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} |
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