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<?php |
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namespace SilverStripe\Forms; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\i18n\i18n; |
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use Zend_Locale; |
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use Zend_Locale_Exception; |
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use Zend_Locale_Format; |
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/** |
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* Text input field with validation for numeric values. Supports validating |
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* the numeric value as to the {@link i18n::get_locale()} value, or an |
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* overridden locale specific to this field. |
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*/ |
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class NumericField extends TextField { |
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protected $schemaDataType = FormField::SCHEMA_DATA_TYPE_DECIMAL; |
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/** |
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* Override locale for this field. |
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* |
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* @var string |
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*/ |
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protected $locale = null; |
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/** |
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* @param mixed $value |
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* @param array $data |
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* |
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* @return $this |
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* |
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* @throws Zend_Locale_Exception |
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*/ |
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public function setValue($value, $data = array()) { |
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require_once "Zend/Locale/Format.php"; |
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// If passing in a non-string number, or a value |
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// directly from a DataObject then localise this number |
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if(is_int($value) || is_float($value) || $data instanceof DataObject) { |
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$locale = new Zend_Locale($this->getLocale()); |
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$this->value = Zend_Locale_Format::toNumber( |
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$value, |
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array('locale' => $locale) |
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); |
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} else { |
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$this->value = $this->clean($value); |
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} |
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return $this; |
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} |
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/** |
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* In some cases and locales, validation expects non-breaking spaces. |
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* |
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* Returns the value, with all spaces replaced with non-breaking spaces. |
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* |
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* @param string $input |
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* |
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* @return string |
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*/ |
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protected function clean($input) { |
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$replacement = html_entity_decode(' ', null, 'UTF-8'); |
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return str_replace(' ', $replacement, trim($input)); |
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} |
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/** |
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* Determine if the current value is a valid number in the current locale. |
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* |
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* @return bool |
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*/ |
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protected function isNumeric() { |
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require_once "Zend/Locale/Format.php"; |
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$locale = new Zend_Locale($this->getLocale()); |
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return Zend_Locale_Format::isNumber( |
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$this->clean($this->value), |
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array('locale' => $locale) |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function Type() { |
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return 'numeric text'; |
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} |
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/** |
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* Validate this field |
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* |
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* @param Validator $validator |
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* @return bool |
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*/ |
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public function validate($validator) { |
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if(!$this->value) { |
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return true; |
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} |
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if($this->isNumeric()) { |
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return true; |
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} |
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$validator->validationError( |
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$this->name, |
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_t( |
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'NumericField.VALIDATION', |
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"'{value}' is not a number, only numbers can be accepted for this field", |
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array('value' => $this->value) |
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), |
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"validation" |
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); |
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return false; |
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} |
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public function getSchemaValidation() { |
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$rules = parent::getSchemaValidation(); |
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$rules['numeric'] = true; |
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return $rules; |
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} |
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/** |
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* Extracts the number value from the localised string value. |
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* |
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* @return string |
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*/ |
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public function dataValue() { |
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require_once "Zend/Locale/Format.php"; |
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if(!$this->isNumeric()) { |
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return 0; |
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} |
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$locale = new Zend_Locale($this->getLocale()); |
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$number = Zend_Locale_Format::getNumber( |
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$this->clean($this->value), |
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array('locale' => $locale) |
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); |
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return $number; |
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} |
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/** |
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* Creates a read-only version of the field. |
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* |
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* @return NumericField_Readonly |
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*/ |
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public function performReadonlyTransformation() { |
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$field = new NumericField_Readonly( |
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$this->name, |
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$this->title, |
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$this->value |
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); |
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$field->setForm($this->form); |
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return $field; |
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} |
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/** |
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* Gets the current locale this field is set to. |
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* |
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* @return string |
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*/ |
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public function getLocale() { |
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if($this->locale) { |
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return $this->locale; |
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} |
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return i18n::get_locale(); |
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} |
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/** |
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* Override the locale for this field. |
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* |
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* @param string $locale |
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* |
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* @return $this |
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*/ |
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public function setLocale($locale) { |
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$this->locale = $locale; |
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return $this; |
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} |
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} |
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silverstripe /
silverstripe-framework
