71 lines
1.6 KiB
PHP
71 lines
1.6 KiB
PHP
<?php
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namespace SilverStripe\Forms;
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use SilverStripe\Core\Convert;
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use ReflectionClass;
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use SilverStripe\Core\Injector\Injectable;
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/**
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* A helper class for managing {@link Form} and {@link FormField} HTML template
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* output.
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*
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* This primarily exists to maintain backwards compatibility between Form and
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* FormField template changes since developers may rely on specific HTML output
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* in their applications. Any core changes to templates (such as changing ID's)
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* may have the potential to silently prevent websites from working.
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*
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* To provide a form with a custom FormTemplateHelper use the following snippet:
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*
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* <code>
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* $form->setTemplateHelper('ClassName');
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* </code>
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*
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* Globally, the FormTemplateHelper can be set via the {@link Injector} API.
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*/
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class FormTemplateHelper {
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use Injectable;
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/**
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* @param Form $form
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*
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* @return string
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*/
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public function generateFormID($form) {
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if($id = $form->getHTMLID()) {
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return Convert::raw2htmlid($id);
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}
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$reflection = new ReflectionClass($form);
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$shortName = str_replace(array('.', '/'), '', $form->getName());
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return Convert::raw2htmlid($reflection->getShortName() . '_' . $shortName);
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}
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/**
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* @param FormField $field
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*
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* @return string
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*/
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public function generateFieldHolderID($field) {
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return $this->generateFieldID($field) . '_Holder';
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}
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/**
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* Generate the field ID value
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*
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* @param FormField $field
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* @return string
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*/
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public function generateFieldID($field) {
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if($form = $field->getForm()) {
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return sprintf("%s_%s",
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$this->generateFormID($form),
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Convert::raw2htmlid($field->getName())
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);
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}
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return Convert::raw2htmlid($field->getName());
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}
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}
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