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<?php
/**
* Generates a three-pane UI for editing model classes,
* with an automatically generated search panel, tabular results
* and edit forms.
* Relies on data such as {@link DataObject::$db} and {@DataObject::getCMSFields()}
* to scaffold interfaces "out of the box", while at the same time providing
* flexibility to customize the default output.
*
* Add a route (note - this doc is not currently in sync with the code, need to update)
* <code>
* Director::addRules(50, array('admin/mymodel/$Class/$Action/$ID' => 'MyModelAdmin'));
* </code>
*
* @todo saving logic (should mostly use Form->saveInto() and iterate over relations)
* @todo ajax form loading and saving
* @todo ajax result display
* @todo relation formfield scaffolding (one tab per relation) - relations don't have DBField sublclasses, we do
* we define the scaffold defaults. can be ComplexTableField instances for a start.
* @todo has_many/many_many relation autocomplete field (HasManyComplexTableField doesn't work well with larger datasets)
*
* Long term TODOs:
* @todo Hook into RESTful interface on DataObjects (yet to be developed)
* @todo Permission control via datamodel and Form class
*
* @uses SearchContext
*
* @package cms
* @subpackage core
*/
abstract class ModelAdmin extends LeftAndMain {
static $url_rule = '/$Action';
/**
* List of all managed {@link DataObject}s in this interface.
*
* Simple notation with class names only:
* <code>
* array('MyObjectClass','MyOtherObjectClass')
* </code>
*
* Extended notation with options (e.g. custom titles):
* <code>
* array(
* 'MyObjectClass' => array('title' => "Custom title")
* )
* </code>
*
* Available options:
* - 'title': Set custom titles for the tabs or dropdown names
* - 'collection_controller': Set a custom class to use as a collection controller for this model
* - 'record_controller': Set a custom class to use as a record controller for this model
*
* @var array|string
*/
public static $managed_models = null;
/**
* More actions are dynamically added in {@link defineMethods()} below.
*/
public static $allowed_actions = array(
'add',
'edit',
'delete',
'import',
'renderimportform',
'handleList',
'handleItem',
'ImportForm'
);
/**
* @param string $collection_controller_class Override for controller class
*/
public static $collection_controller_class = "ModelAdmin_CollectionController";
/**
* @param string $collection_controller_class Override for controller class
*/
public static $record_controller_class = "ModelAdmin_RecordController";
/**
* Forward control to the default action handler
*/
public static $url_handlers = array(
'$Action' => 'handleAction'
);
/**
* Model object currently in manipulation queue. Used for updating Link to point
* to the correct generic data object in generated URLs.
*
* @var string
*/
private $currentModel = false;
/**
* Change this variable if you don't want the Import from CSV form to appear.
* This variable can be a boolean or an array.
* If array, you can list className you want the form to appear on. i.e. array('myClassOne','myClasstwo')
*/
public $showImportForm = true;
/**
* List of all {@link DataObject}s which can be imported through
* a subclass of {@link BulkLoader} (mostly CSV data).
* By default {@link CsvBulkLoader} is used, assuming a standard mapping
* of column names to {@link DataObject} properties/relations.
*
* e.g. "BlogEntry" => "BlogEntryCsvBulkLoader"
*
* @var array
*/
public static $model_importers = null;
/**
* Amount of results showing on a single page.
*
* @var int
*/
public static $page_length = 30;
/**
* Class name of the form field used for the results list. Overloading this in subclasses
* can let you customise the results table field.
*/
protected $resultsTableClassName = 'TableListField';
/**
* Return {@link $this->resultsTableClassName}
*/
public function resultsTableClassName() {
return $this->resultsTableClassName;
}
/**
* Initialize the model admin interface. Sets up embedded jquery libraries and requisite plugins.
*
* @todo remove reliance on urlParams
*/
public function init() {
parent::init();
// security check for valid models
if(isset($this->urlParams['Action']) && !in_array($this->urlParams['Action'], $this->getManagedModels())) {
//user_error('ModelAdmin::init(): Invalid Model class', E_USER_ERROR);
}
Requirements::css(SAPPHIRE_ADMIN_DIR . '/css/silverstripe.tabs.css'); // follows the jQuery UI theme conventions
Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery/jquery.js');
Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery-livequery/jquery.livequery.js');
Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery-ui/jquery-ui.js');
Requirements::javascript(SAPPHIRE_DIR . '/javascript/jquery/jquery_improvements.js');
Requirements::javascript(SAPPHIRE_ADMIN_DIR . '/javascript/ModelAdmin.js');
Requirements::javascript(SAPPHIRE_ADMIN_DIR . '/javascript/ModelAdmin.History.js');
}
/**
* overwrite the static page_length of the admin panel,
* should be called in the project _config file.
*/
static function set_page_length($length){
self::$page_length = $length;
}
/**
* Return the static page_length of the admin, default as 30
*/
static function get_page_length(){
return self::$page_length;
}
/**
* Return the class name of the collection controller
*
* @param string $model model name to get the controller for
* @return string the collection controller class
*/
function getCollectionControllerClass($model) {
$models = $this->getManagedModels();
if(isset($models[$model]['collection_controller'])) {
$class = $models[$model]['collection_controller'];
} else {
$class = $this->stat('collection_controller_class');
}
return $class;
}
/**
* Return the class name of the record controller
*
* @param string $model model name to get the controller for
* @return string the record controller class
*/
function getRecordControllerClass($model) {
$models = $this->getManagedModels();
if(isset($models[$model]['record_controller'])) {
$class = $models[$model]['record_controller'];
} else {
$class = $this->stat('record_controller_class');
}
return $class;
}
/**
* Add mappings for generic form constructors to automatically delegate to a scaffolded form object.
*/
function defineMethods() {
parent::defineMethods();
foreach($this->getManagedModels() as $class => $options) {
if(is_numeric($class)) $class = $options;
$this->addWrapperMethod($class, 'bindModelController');
self::$allowed_actions[] = $class;
}
}
/**
* Base scaffolding method for returning a generic model instance.
*/
public function bindModelController($model, $request = null) {
$class = $this->getCollectionControllerClass($model);
return new $class($this, $model);
}
/**
* This method can be overloaded to specify the UI by which the search class is chosen.
*
* It can create a tab strip or a dropdown. The dropdown is useful when there are a large number of classes.
* By default, it will show a tabs for 1-3 classes, and a dropdown for 4 or more classes.
*
* @return String: 'tabs' or 'dropdown'
*/
public function SearchClassSelector() {
return sizeof($this->getManagedModels()) > 3 ? 'dropdown' : 'tabs';
}
/**
* Returns managed models' create, search, and import forms
* @uses SearchContext
* @uses SearchFilter
* @return SS_List of forms
*/
protected function getModelForms() {
$models = $this->getManagedModels();
$forms = new ArrayList();
foreach($models as $class => $options) {
if(is_numeric($class)) $class = $options;
$forms->push(new ArrayData(array (
'Title' => (is_array($options) && isset($options['title'])) ? $options['title'] : singleton($class)->i18n_singular_name(),
'ClassName' => $class,
'Content' => $this->$class()->getModelSidebar()
)));
}
return $forms;
}
/**
* @return array
*/
function getManagedModels() {
$models = $this->stat('managed_models');
if(is_string($models)) {
$models = array($models);
}
if(!count($models)) {
user_error(
'ModelAdmin::getManagedModels():
You need to specify at least one DataObject subclass in public static $managed_models.
Make sure that this property is defined, and that its visibility is set to "public"',
E_USER_ERROR
);
}
return $models;
}
/**
* Returns all importers defined in {@link self::$model_importers}.
* If none are defined, we fall back to {@link self::managed_models}
* with a default {@link CsvBulkLoader} class. In this case the column names of the first row
* in the CSV file are assumed to have direct mappings to properties on the object.
*
* @return array
*/
function getModelImporters() {
$importers = $this->stat('model_importers');
// fallback to all defined models if not explicitly defined
if(is_null($importers)) {
$models = $this->getManagedModels();
foreach($models as $modelName => $options) {
if(is_numeric($modelName)) $modelName = $options;
$importers[$modelName] = 'CsvBulkLoader';
}
}
return $importers;
}
}
/**
* Handles a managed model class and provides default collection filtering behavior.
*
* @package cms
* @subpackage core
*/
class ModelAdmin_CollectionController extends Controller {
public $parentController;
protected $modelClass;
public $showImportForm = null;
static $url_handlers = array(
'$Action' => 'handleActionOrID'
);
function __construct($parent, $model) {
$this->parentController = $parent;
$this->modelClass = $model;
parent::__construct();
}
/**
* Appends the model class to the URL.
*
* @param string $action
* @return string
*/
function Link($action = null) {
return $this->parentController->Link(Controller::join_links($this->modelClass, $action));
}
/**
* Return the class name of the model being managed.
*
* @return unknown
*/
function getModelClass() {
return $this->modelClass;
}
/**
* Delegate to different control flow, depending on whether the
* URL parameter is a number (record id) or string (action).
*
* @param unknown_type $request
* @return unknown
*/
function handleActionOrID($request) {
if (is_numeric($request->param('Action'))) {
return $this->handleID($request);
} else {
return $this->handleAction($request);
}
}
/**
* Delegate to the RecordController if a valid numeric ID appears in the URL
* segment.
*
* @param SS_HTTPRequest $request
* @return RecordController
*/
public function handleID($request) {
$class = $this->parentController->getRecordControllerClass($this->getModelClass());
return new $class($this, $request);
}
// -----------------------------------------------------------------------------------------------------------------
/**
* Get a combination of the Search, Import and Create forms that can be inserted into a {@link ModelAdmin} sidebar.
*
* @return string
*/
public function getModelSidebar() {
return $this->renderWith('ModelSidebar');
}
/**
* Get a search form for a single {@link DataObject} subclass.
*
* @return Form
*/
public function SearchForm() {
$context = singleton($this->modelClass)->getDefaultSearchContext();
$fields = $context->getSearchFields();
$columnSelectionField = $this->ColumnSelectionField();
$fields->push($columnSelectionField);
$validator = new RequiredFields();
$validator->setJavascriptValidationHandler('none');
$form = new Form($this, "SearchForm",
$fields,
new FieldList(
new FormAction('search', _t('MemberTableField.SEARCH', 'Search')),
$clearAction = new ResetFormAction('clearsearch', _t('ModelAdmin.CLEAR_SEARCH','Clear Search'))
),
$validator
);
//$form->setFormAction(Controller::join_links($this->Link(), "search"));
$form->setFormMethod('get');
$form->setHTMLID("Form_SearchForm_" . $this->modelClass);
$form->disableSecurityToken();
$clearAction->useButtonTag = true;
$clearAction->addExtraClass('ss-ui-action-minor');
return $form;
}
/**
* Create a form that consists of one button
* that directs to a give model's Add form
*/
public function CreateForm() {
$modelName = $this->modelClass;
if($this->hasMethod('alternatePermissionCheck')) {
if(!$this->alternatePermissionCheck()) return false;
} else {
if(!singleton($modelName)->canCreate(Member::currentUser())) return false;
}
$buttonLabel = sprintf(_t('ModelAdmin.CREATEBUTTON', "Create '%s'", PR_MEDIUM, "Create a new instance from a model class"), singleton($modelName)->i18n_singular_name());
$form = new Form($this, "CreateForm",
new FieldList(),
new FieldList($createButton = new FormAction('add', $buttonLabel)),
$validator = new RequiredFields()
);
$createButton->addExtraClass('ss-ui-action-constructive');
$createButton->dontEscape = true;
$validator->setJavascriptValidationHandler('none');
$form->setHTMLID("Form_CreateForm_" . $this->modelClass);
return $form;
}
/**
* Checks if a CSV import form should be generated by a className criteria or in general for ModelAdmin.
*/
function showImportForm() {
if($this->showImportForm === null) return $this->parentController->showImportForm;
else return $this->showImportForm;
}
/**
* Generate a CSV import form for a single {@link DataObject} subclass.
*
* @return Form
*/
public function ImportForm() {
$modelName = $this->modelClass;
// check if a import form should be generated
if(!$this->showImportForm() || (is_array($this->showImportForm()) && !in_array($modelName,$this->showImportForm()))) return false;
$importers = $this->parentController->getModelImporters();
if(!$importers || !isset($importers[$modelName])) return false;
if(!singleton($modelName)->canCreate(Member::currentUser())) return false;
$fields = new FieldList(
new HiddenField('ClassName', _t('ModelAdmin.CLASSTYPE'), $modelName),
new FileField('_CsvFile', false)
);
// get HTML specification for each import (column names etc.)
$importerClass = $importers[$modelName];
$importer = new $importerClass($modelName);
$spec = $importer->getImportSpec();
$specFields = new ArrayList();
foreach($spec['fields'] as $name => $desc) {
$specFields->push(new ArrayData(array('Name' => $name, 'Description' => $desc)));
}
$specRelations = new ArrayList();
foreach($spec['relations'] as $name => $desc) {
$specRelations->push(new ArrayData(array('Name' => $name, 'Description' => $desc)));
}
$specHTML = $this->customise(array(
'ModelName' => Convert::raw2att($modelName),
'Fields' => $specFields,
'Relations' => $specRelations,
))->renderWith('ModelAdmin_ImportSpec');
$fields->push(new LiteralField("SpecFor{$modelName}", $specHTML));
$fields->push(new CheckboxField('EmptyBeforeImport', 'Clear Database before import', false));
$actions = new FieldList(
new FormAction('import', _t('ModelAdmin.IMPORT', 'Import from CSV'))
);
$validator = new RequiredFields();
$validator->setJavascriptValidationHandler('none');
$form = new Form(
$this,
"ImportForm",
$fields,
$actions,
$validator
);
$form->setHTMLID("Form_ImportForm_" . $this->modelClass);
return $form;
}
/**
* Imports the submitted CSV file based on specifications given in
* {@link self::model_importers}.
* Redirects back with a success/failure message.
*
* @todo Figure out ajax submission of files via jQuery.form plugin
*
* @param array $data
* @param Form $form
* @param SS_HTTPRequest $request
*/
function import($data, $form, $request) {
$modelName = $data['ClassName'];
if(!$this->showImportForm() || (is_array($this->showImportForm()) && !in_array($modelName,$this->showImportForm()))) return false;
$importers = $this->parentController->getModelImporters();
$importerClass = $importers[$modelName];
$loader = new $importerClass($data['ClassName']);
// File wasn't properly uploaded, show a reminder to the user
if(
empty($_FILES['_CsvFile']['tmp_name']) ||
file_get_contents($_FILES['_CsvFile']['tmp_name']) == ''
) {
$form->sessionMessage(_t('ModelAdmin.NOCSVFILE', 'Please browse for a CSV file to import'), 'good');
$this->redirectBack();
return false;
}
if (!empty($data['EmptyBeforeImport']) && $data['EmptyBeforeImport']) { //clear database before import
$loader->deleteExistingRecords = true;
}
$results = $loader->load($_FILES['_CsvFile']['tmp_name']);
$message = '';
if($results->CreatedCount()) $message .= sprintf(
_t('ModelAdmin.IMPORTEDRECORDS', "Imported %s records."),
$results->CreatedCount()
);
if($results->UpdatedCount()) $message .= sprintf(
_t('ModelAdmin.UPDATEDRECORDS', "Updated %s records."),
$results->UpdatedCount()
);
if($results->DeletedCount()) $message .= sprintf(
_t('ModelAdmin.DELETEDRECORDS', "Deleted %s records."),
$results->DeletedCount()
);
if(!$results->CreatedCount() && !$results->UpdatedCount()) $message .= _t('ModelAdmin.NOIMPORT', "Nothing to import");
$form->sessionMessage($message, 'good');
$this->redirectBack();
}
/**
* Return the columns available in the column selection field.
* Overload this to make other columns available
*/
public function columnsAvailable() {
return singleton($this->modelClass)->summaryFields();
}
/**
* Return the columns selected by default in the column selection field.
* Overload this to make other columns selected by default
*/
public function columnsSelectedByDefault() {
return array_keys(singleton($this->modelClass)->summaryFields());
}
/**
* Give the flexibilility to show variouse combination of columns in the search result table
*/
public function ColumnSelectionField() {
$model = singleton($this->modelClass);
$source = $this->columnsAvailable();
// select all fields by default
$value = $this->columnsSelectedByDefault();
// Reorder the source so that you read items down the column and then across
$columnisedSource = array();
$keys = array_keys($source);
$midPoint = ceil(sizeof($source)/2);
for($i=0;$i<$midPoint;$i++) {
$key1 = $keys[$i];
$columnisedSource[$key1] = $model->fieldLabel($source[$key1]);
// If there are an odd number of items, the last item will be unset
if(isset($keys[$i+$midPoint])) {
$key2 = $keys[$i+$midPoint];
$columnisedSource[$key2] = $model->fieldLabel($source[$key2]);
}
}
$checkboxes = new CheckboxSetField("ResultAssembly", false, $columnisedSource, $value);
$field = new CompositeField(
new LiteralField(
"ToggleResultAssemblyLink",
sprintf("<a class=\"form_frontend_function toggle_result_assembly\" href=\"#\">%s</a>",
_t('ModelAdmin.CHOOSE_COLUMNS', 'Select result columns...')
)
),
$checkboxesBlock = new CompositeField(
$checkboxes,
new LiteralField("ClearDiv", "<div class=\"clear\"></div>"),
new LiteralField(
"TickAllAssemblyLink",
sprintf(
"<a class=\"form_frontend_function tick_all_result_assembly\" href=\"#\">%s</a>",
_t('ModelAdmin.SELECTALL', 'select all')
)
),
new LiteralField(
"UntickAllAssemblyLink",
sprintf(
"<a class=\"form_frontend_function untick_all_result_assembly\" href=\"#\">%s</a>",
_t('ModelAdmin.SELECTNONE', 'select none')
)
)
)
);
$field->addExtraClass("ResultAssemblyBlock");
$checkboxesBlock->addExtraClass("hidden");
return $field;
}
/**
* Action to render a data object collection, using the model context to provide filters
* and paging.
*
* @return string
*/
function search($request, $form) {
// Get the results form to be rendered
$resultsForm = $this->ResultsForm(array_merge($form->getData(), $request));
// Before rendering, let's get the total number of results returned
$tableField = $resultsForm->Fields()->dataFieldByName($this->modelClass);
$tableField->addExtraClass('resultsTable');
$numResults = $tableField->TotalCount();
if($numResults) {
$msg = sprintf(
_t('ModelAdmin.FOUNDRESULTS',"Your search found %s matching items"),
$numResults
);
} else {
$msg = _t('ModelAdmin.NORESULTS',"Your search didn't return any matching items");
}
return new SS_HTTPResponse(
$resultsForm->forTemplate(),
200,
$msg
);
}
/**
* Gets the search query generated on the SearchContext from
* {@link DataObject::getDefaultSearchContext()},
* and the current GET parameters on the request.
*
* @return SQLQuery
*/
function getSearchQuery($searchCriteria) {
$context = singleton($this->modelClass)->getDefaultSearchContext();
return $context->getQuery($searchCriteria);
}
/**
* Returns all columns used for tabular search results display.
* Defaults to all fields specified in {@link DataObject->summaryFields()}.
*
* @param array $searchCriteria Limit fields by populating the 'ResultsAssembly' key
* @param boolean $selectedOnly Limit by 'ResultsAssempty
*/
function getResultColumns($searchCriteria, $selectedOnly = true) {
$model = singleton($this->modelClass);
$summaryFields = $this->columnsAvailable();
if($selectedOnly && isset($searchCriteria['ResultAssembly'])) {
$resultAssembly = $searchCriteria['ResultAssembly'];
if(!is_array($resultAssembly)) {
$explodedAssembly = split(' *, *', $resultAssembly);
$resultAssembly = array();
foreach($explodedAssembly as $item) $resultAssembly[$item] = true;
}
return array_intersect_key($summaryFields, $resultAssembly);
} else {
return $summaryFields;
}
}
/**
* Creates and returns the result table field for resultsForm.
* Uses {@link resultsTableClassName()} to initialise the formfield.
* Method is called from {@link ResultsForm}.
*
* @param array $searchCriteria passed through from ResultsForm
*
* @return TableListField
*/
function getResultsTable($searchCriteria) {
$summaryFields = $this->getResultColumns($searchCriteria);
$className = $this->parentController->resultsTableClassName();
$tf = new $className(
$this->modelClass,
$this->modelClass,
$summaryFields
);
$tf->setCustomQuery($this->getSearchQuery($searchCriteria));
$tf->setPageSize($this->parentController->stat('page_length'));
$tf->setShowPagination(true);
// @todo Remove records that can't be viewed by the current user
$tf->setPermissions(array_merge(array('view','export'), TableListField::permissions_for_object($this->modelClass)));
// csv export settings (select all columns regardless of user checkbox settings in 'ResultsAssembly')
$exportFields = $this->getResultColumns($searchCriteria, false);
$tf->setFieldListCsv($exportFields);
$url = '<a href=\"' . $this->Link() . '/$ID/edit\">$value</a>';
if(count($summaryFields)) {
$tf->setFieldFormatting(array_combine(
array_keys($summaryFields),
array_fill(0,count($summaryFields), $url)
));
}
return $tf;
}
/**
* Shows results from the "search" action in a TableListField.
*
* @uses getResultsTable()
*
* @return Form
*/
function ResultsForm($searchCriteria) {
if($searchCriteria instanceof SS_HTTPRequest) $searchCriteria = $searchCriteria->getVars();
$tf = $this->getResultsTable($searchCriteria);
// implemented as a form to enable further actions on the resultset
// (serverside sorting, export as CSV, etc)
$form = new Form(
$this,
'ResultsForm',
new FieldList(
new HeaderField('SearchResults', _t('ModelAdmin.SEARCHRESULTS','Search Results'), 2),
$tf
),
new FieldList()
);
// Include the search criteria on the results form URL, but not dodgy variables like those below
$filteredCriteria = $searchCriteria;
unset($filteredCriteria['ctf']);
unset($filteredCriteria['url']);
unset($filteredCriteria['action_search']);
$form->setFormAction($this->Link() . '/ResultsForm?' . http_build_query($filteredCriteria));
return $form;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Create a new model record.
*
* @param unknown_type $request
* @return unknown
*/
function add($request) {
return new SS_HTTPResponse(
$this->AddForm()->forTemplate(),
200,
sprintf(
_t('ModelAdmin.ADDFORM', "Fill out this form to add a %s to the database."),
$this->modelClass
)
);
}
/**
* Returns a form suitable for adding a new model, falling back on the default edit form.
*
* Caution: The add-form shows a DataObject's {@link DataObject->getCMSFields()} method on a record
* that doesn't exist in the database yet, hence has no ID. This means the {@link DataObject->getCMSFields()}
* implementation has to ensure that no fields are added which would rely on a
* record ID being present, e.g. {@link HasManyComplexTableField}.
*
* Example:
* <code>
* function getCMSFields() {
* $fields = parent::getCMSFields();
* if($this->exists()) {
* $ctf = new HasManyComplexTableField($this, 'MyRelations', 'MyRelation');
* $fields->addFieldToTab('Root.Main', $ctf);
* }
* return $fields;
* }
* </code>
*
* @return Form
*/
public function AddForm() {
$newRecord = new $this->modelClass();
if($newRecord->canCreate()){
if($newRecord->hasMethod('getCMSAddFormFields')) {
$fields = $newRecord->getCMSAddFormFields();
} else {
$fields = $newRecord->getCMSFields();
}
$validator = ($newRecord->hasMethod('getCMSValidator')) ? $newRecord->getCMSValidator() : null;
if(!$validator) $validator = new RequiredFields();
$validator->setJavascriptValidationHandler('none');
$actions = new FieldList (
new FormAction("doCreate", _t('ModelAdmin.ADDBUTTON', "Add"))
);
$form = new Form($this, "AddForm", $fields, $actions, $validator);
$form->loadDataFrom($newRecord);
$form->addExtraClass('cms-edit-form');
return $form;
}
}
function doCreate($data, $form, $request) {
$className = $this->getModelClass();
$model = new $className();
// We write before saveInto, since this will let us save has-many and many-many relationships :-)
$model->write();
$form->saveInto($model);
$model->write();
if($this->isAjax()) {
$class = $this->parentController->getRecordControllerClass($this->getModelClass());
$recordController = new $class($this, $request, $model->ID);
return new SS_HTTPResponse(
$recordController->EditForm()->forTemplate(),
200,
sprintf(
_t('ModelAdmin.LOADEDFOREDITING', "Loaded '%s' for editing."),
$model->Title
)
);
} else {
Director::redirect(Controller::join_links($this->Link(), $model->ID , 'edit'));
}
}
}
/**
* Handles operations on a single record from a managed model.
*
* @package cms
* @subpackage core
* @todo change the parent controller varname to indicate the model scaffolding functionality in ModelAdmin
*/
class ModelAdmin_RecordController extends Controller {
protected $parentController;
protected $currentRecord;
static $allowed_actions = array('edit', 'view', 'EditForm', 'ViewForm');
function __construct($parentController, $request, $recordID = null) {
$this->parentController = $parentController;
$modelName = $parentController->getModelClass();
$recordID = ($recordID) ? $recordID : $request->param('Action');
$this->currentRecord = DataObject::get_by_id($modelName, $recordID);
parent::__construct();
}
/**
* Link fragment - appends the current record ID to the URL.
*/
public function Link($action = null) {
return $this->parentController->Link(Controller::join_links($this->currentRecord->ID, $action));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Edit action - shows a form for editing this record
*/
function edit($request) {
if ($this->currentRecord) {
if($this->isAjax()) {
$this->response->setBody($this->EditForm()->forTemplate());
$this->response->setStatusCode(
200,
sprintf(
_t('ModelAdmin.LOADEDFOREDITING', "Loaded '%s' for editing."),
$this->currentRecord->Title
)
);
return $this->response;
} else {
// This is really quite ugly; to fix will require a change in the way that customise() works. :-(
return $this->parentController->parentController->customise(array(
'Content' => $this->parentController->parentController->customise(array(
'EditForm' => $this->EditForm()
))->renderWith(array("{$this->class}_Content",'ModelAdmin_Content', 'LeftAndMain_Content'))
))->renderWith(array('ModelAdmin', 'LeftAndMain'));
}
} else {
return _t('ModelAdmin.ITEMNOTFOUND', "I can't find that item");
}
}
/**
* Returns a form for editing the attached model
*/
public function EditForm() {
$fields = $this->currentRecord->getCMSFields();
$fields->push(new HiddenField("ID"));
if($this->currentRecord->hasMethod('Link')) {
$fields->push(new LiteralField('SilverStripeNavigator', $this->getSilverStripeNavigator()));
}
$validator = ($this->currentRecord->hasMethod('getCMSValidator')) ? $this->currentRecord->getCMSValidator() : new RequiredFields();
$validator->setJavascriptValidationHandler('none');
$actions = $this->currentRecord->getCMSActions();
if($this->currentRecord->canEdit(Member::currentUser())){
if(!$actions->fieldByName('action_doSave') && !$actions->fieldByName('action_save')) {
$actions->push($saveAction = new FormAction("doSave", _t('ModelAdmin.SAVE', "Save")));
$saveAction->addExtraClass('ss-ui-action-constructive');
}
}else{
$fields = $fields->makeReadonly();
}
if($this->currentRecord->canDelete(Member::currentUser())) {
if(!$actions->fieldByName('action_doDelete')) {
$actions->unshift($deleteAction = new FormAction('doDelete', _t('ModelAdmin.DELETE', 'Delete')));
}
$deleteAction->addExtraClass('delete ss-ui-action-destructive');
}
$form = new Form($this, "EditForm", $fields, $actions, $validator);
$form->loadDataFrom($this->currentRecord);
$form->addExtraClass('cms-edit-form');
return $form;
}
/**
* Postback action to save a record
*
* @param array $data
* @param Form $form
* @param SS_HTTPRequest $request
* @return mixed
*/
function doSave($data, $form, $request) {
$form->saveInto($this->currentRecord);
try {
$this->currentRecord->write();
} catch(ValidationException $e) {
$form->sessionMessage($e->getResult()->message(), 'bad');
}
// Behaviour switched on .
if($this->parentController->isAjax()) {
return $this->edit($request);
} else {
$this->parentController->redirectBack();
}
}
/**
* Delete the current record
*/
public function doDelete($data, $form, $request) {
if($this->currentRecord->canDelete(Member::currentUser())) {
$this->currentRecord->delete();
Director::redirect($this->parentController->Link('SearchForm?action=search'));
} else {
$this->parentController->redirectBack();
}
return;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Renders the record view template.
*
* @param SS_HTTPRequest $request
* @return mixed
*/
function view($request) {
if($this->currentRecord) {
$form = $this->ViewForm();
return $form->forTemplate();
} else {
return _t('ModelAdmin.ITEMNOTFOUND');
}
}
/**
* Returns a form for viewing the attached model
*
* @return Form
*/
public function ViewForm() {
$fields = $this->currentRecord->getCMSFields();
$form = new Form($this, "EditForm", $fields, new FieldList());
$form->loadDataFrom($this->currentRecord);
$form->makeReadonly();
return $form;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
function index() {
Director::redirect(Controller::join_links($this->Link(), 'edit'));
}
function getCurrentRecord(){
return $this->currentRecord;
}
}
?>
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