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NEW Move form schema logic into FormSchemaController
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| <?php | ||
|
|
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| namespace SilverStripe\Admin; | ||
|
|
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| use SilverStripe\Control\HTTPRequest; | ||
| use SilverStripe\Control\HTTPResponse; | ||
| use SilverStripe\Core\Validation\ValidationResult; | ||
| use SilverStripe\Forms\Form; | ||
| use SilverStripe\Forms\Schema\FormSchema; | ||
|
|
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| /** | ||
| * The base class for controllers in the CMS that need access to form schema functionality. | ||
| */ | ||
| abstract class FormSchemaController extends AdminController | ||
| { | ||
| /** | ||
| * Form schema header identifier | ||
| */ | ||
| public const SCHEMA_HEADER = 'X-Formschema-Request'; | ||
|
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| private static array $allowed_actions = [ | ||
| 'schema', | ||
| 'methodSchema', | ||
| ]; | ||
|
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| private static array $url_handlers = [ | ||
| 'GET schema/$FormName/$ItemID/$OtherItemID' => 'schema', | ||
| 'GET methodSchema/$Method/$FormName/$ItemID' => 'methodSchema', | ||
| ]; | ||
|
|
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| private static array $dependencies = [ | ||
| 'FormSchema' => '%$' . FormSchema::class, | ||
| ]; | ||
|
|
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| /** | ||
| * Current form schema helper | ||
| */ | ||
| private ?FormSchema $schema = null; | ||
|
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| /** | ||
| * Get form schema helper | ||
| */ | ||
| public function getFormSchema(): FormSchema | ||
| { | ||
| if (!$this->schema) { | ||
| $this->schema = FormSchema::singleton(); | ||
| } | ||
| return $this->schema; | ||
| } | ||
|
|
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| /** | ||
| * Set form schema helper for this controller | ||
| */ | ||
| public function setFormSchema(FormSchema $schema): static | ||
| { | ||
| $this->schema = $schema; | ||
| return $this; | ||
| } | ||
|
|
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| /** | ||
| * Gets a JSON schema representing the current edit form. | ||
| */ | ||
| public function schema(HTTPRequest $request): HTTPResponse | ||
| { | ||
| $formName = $request->param('FormName'); | ||
| $itemID = $request->param('ItemID'); | ||
|
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| if (!$formName) { | ||
| $this->jsonError(400, 'Missing request params'); | ||
| } | ||
|
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| // The getter can accept an ID where the main form action wouldn't | ||
| $formMethod = "get{$formName}"; | ||
| if (!$this->hasMethod($formMethod)) { | ||
| $formMethod = $formName; | ||
| if (!$this->hasMethod($formMethod)) { | ||
| $this->jsonError(404, 'Form not found'); | ||
| } | ||
| } | ||
|
|
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| if (!$this->hasAction($formName)) { | ||
| $this->jsonError(401, 'Form not accessible'); | ||
| } | ||
|
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| if ($itemID) { | ||
| $form = $this->{$formMethod}($itemID); | ||
| } else { | ||
| $form = $this->{$formMethod}(); | ||
| } | ||
| $schemaID = $request->getURL(); | ||
| return $this->getSchemaResponse($schemaID, $form); | ||
| } | ||
|
|
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| /** | ||
| * Get the form schema from a given method. | ||
| * The method must return a Form. | ||
| */ | ||
| public function methodSchema(HTTPRequest $request): HTTPResponse | ||
| { | ||
| $method = $request->param('Method'); | ||
| $formName = $request->param('FormName'); | ||
| $itemID = $request->param('ItemID'); | ||
|
|
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| if (!$formName || !$method) { | ||
| $this->jsonError(400, 'Missing request params'); | ||
| } | ||
|
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| if (!$this->hasMethod($method)) { | ||
| $this->jsonError(404, 'Method not found'); | ||
| } | ||
| if (!$this->hasAction($method)) { | ||
| $this->jsonError(401, 'Method not accessible'); | ||
| } | ||
|
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| $methodItem = $this->{$method}(); | ||
| if (!$methodItem->hasMethod($formName)) { | ||
| $this->jsonError(404, 'Form not found'); | ||
| } | ||
| if (!$methodItem->hasAction($formName)) { | ||
| $this->jsonError(401, 'Form not accessible'); | ||
| } | ||
|
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| $form = $methodItem->{$formName}($itemID); | ||
| $schemaID = $request->getURL(); | ||
|
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| return $this->getSchemaResponse($schemaID, $form); | ||
| } | ||
|
|
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| /** | ||
| * Check if the current request has a X-Formschema-Request header set. | ||
| * Used by conditional logic that responds to validation results | ||
| */ | ||
| protected function getSchemaRequested(): bool | ||
| { | ||
| $parts = $this->getRequest()->getHeader(static::SCHEMA_HEADER); | ||
| return !empty($parts); | ||
| } | ||
|
|
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| /** | ||
| * Generate schema for the given form based on the X-Formschema-Request header value | ||
| * | ||
| * @param string $schemaID ID for this schema. Required. | ||
| * @param Form|null $form Required for 'state' or 'schema' response | ||
| * @param ValidationResult $errors Required for 'error' response | ||
| * @param array $extraData Any extra data to be merged with the schema response | ||
| */ | ||
| protected function getSchemaResponse(string $schemaID, ?Form $form = null, ValidationResult $errors = null, array $extraData = []): HTTPResponse | ||
| { | ||
| $parts = $this->getRequest()->getHeader(static::SCHEMA_HEADER); | ||
| $data = $this | ||
| ->getFormSchema() | ||
| ->getMultipartSchema($parts, $schemaID, $form, $errors); | ||
|
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| if ($extraData) { | ||
| $data = array_merge($data, $extraData); | ||
| } | ||
|
|
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| $response = new HTTPResponse(json_encode($data)); | ||
| $response->addHeader('Content-Type', 'application/json'); | ||
| return $response; | ||
| } | ||
| } |
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