silverstripe-reports/code/ModelAdmin.php

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<?php
/**
* Generates a three-pane UI for editing one or many model classes,
* with an automatically generated search panel, tabular results
* and edit forms.
* Relies on data such as {@link DataObject::$db} and {@DataObject::getCMSFields()}
* to scaffold interfaces "out of the box", while at the same time providing
* flexibility to customize the default output.
*
* Add a route:
* <code>
* Director::addRules(50, array('admin/mymodel/$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 {@link SearchContext}
*
* @package cms
*/
abstract class ModelAdmin extends LeftAndMain {
/**
* List of all managed {@link DataObject}s in this interface.
*
* @var array
*/
protected static $managed_models = null;
public static $allowed_actions = array(
'add',
'edit',
'delete'
);
public function init() {
parent::init();
// security check for valid models
if(isset($this->urlParams['Model']) && !in_array($this->urlParams['Model'], $this->getManagedModels())) {
user_error('ModelAdmin::init(): Invalid Model class', E_USER_ERROR);
}
Requirements::css('cms/css/ModelAdmin.css');
}
/**
* Return default link to this controller
*
* @todo We've specified this in Director::addRules(), why repeat?
*
* @return string
*/
public function Link() {
return 'admin/crm/' . implode('/', array_values(array_unique($this->urlParams)));
}
/**
* Create empty edit form (scaffolded from DataObject->getCMSFields() by default).
* Can be called either through {@link AddForm()} or directly through URL:
* "/myadminroute/MyModelClass/add"
*
* @param array $data
* @param Form $form
*/
public function add($data, $form) {
$className = (isset($data['ClassName'])) ? $data['ClassName'] : $this->urlParams['ClassName'];
if(!isset($className) || !in_array($data['ClassName'], $this->getManagedModels())) return false;
return $this->customise(array(
'EditForm' => $this->getEditForm($data['ClassName'])
))->renderWith('LeftAndMain');
}
/**
* Edit forms (scaffolded from DataObject->getCMSFields() by default).
*
* @param array $data
* @param Form $form
*/
public function edit($data, $form) {
if(!isset($data['ClassName']) || !in_array($data['ClassName'], $this->getManagedModels())) return false;
// @todo generate editform
}
/**
* @todo documentation
*
* @param array $data
* @param Form $form
*/
public function save($data, $form) {
// @todo implementation
}
/**
* Allows to choose which record needs to be created.
*
* @return Form
*/
protected function AddForm() {
$models = $this->getManagedModels();
$modelMap = array();
foreach($models as $modelName) $modelMap[$modelName] = singleton($modelName)->singular_name();
$form = new Form(
$this,
'AddForm',
new FieldSet(
new DropdownField(
'ClassName',
'Type',
$modelMap
)
),
new FieldSet(
new FormAction('add', _t('GenericDataAdmin.CREATE'))
)
);
return $form;
}
/**
*
* @uses {@link SearchContext}
* @uses {@link SearchFilter}
* @return Form
*/
protected function getSearchForms() {
$modelClasses = $this->getManagedModels();
$forms = new DataObjectSet();
foreach($modelClasses as $modelClass) {
$modelObj = singleton($modelClass);
$form = $this->getSearchFormForModel($modelClass);
$forms->push(new ArrayData(array(
'Form' => $form,
'Title' => $modelObj->singular_name()
)));
}
return $forms;
}
/**
* Enter description here...
*
* @todo Add customizeable validator
*
* @param string $modelClass
*/
protected function getEditForm($modelClass) {
$modelObj = singleton($modelClass);
$fields = $this->getFieldsForModel($modelObj);
$actions = $this->getActionsForModel($modelObj);
$validator = $this->getValidatorForModel($modelObj);
$form = new Form(
$this,
'ModelEditForm',
$fields,
$actions,
$validator
);
return $form;
}
// ############# Utility Methods ##############
/**
* @return array
*/
protected function getManagedModels() {
$models = $this->stat('managed_models');
if(!count($models)) user_error('ModelAdmin::getManagedModels():
You need to specify at least one DataObject subclass in $managed_models', E_USER_ERROR);
return $models;
}
/**
* Get all cms fields for the model
* (defaults to {@link DataObject->getCMSFields()}).
*
* @todo Make method hook customizeable
*
* @param DataObject $modelObj
* @return FieldSet
*/
protected function getFieldsForModel($modelObj) {
return $modelObj->getCMSFields();
}
/**
* Get all actions which are possible in this controller,
* and allowed by the model security.
*
* @todo Hook into model security once its is implemented
*
* @param DataObject $modelObj
* @return FieldSet
*/
protected function getActionsForModel($modelObj) {
$actions = new FieldSet(
new FormAction('save', _t('GenericDataAdmin.SAVE')),
new FormAction('delete', _t('GenericDataAdmin.DELETE'))
);
return $actions;
}
/**
* NOT IMPLEMENTED
* Get a valdidator for the model.
*
* @todo Hook into model security once its is implemented
*
* @param DataObject $modelObj
* @return FieldSet
*/
protected function getValidatorForModel($modelObj) {
return false;
}
/**
* Get a search form for a single {@link DataObject} subclass.
*
* @param string $modelClass
* @return FieldSet
*/
protected function getSearchFormForModel($modelClass) {
$context = singleton($modelClass)->getDefaultSearchContext();
$form = new Form(
$this,
"SearchForm_{$modelClass}",
$context->getSearchFields(),
new FieldSet(
new FormAction('search', _t('MemberTableField.SEARCH'))
)
);
//$form->setFormMethod('get');
return $form;
}
/**
* Another counter intuitive hoop to jump through, as the Form constructor
* is still thoroughly confusing the hell out of me.
*/
function FormObjectLink($value) {
$value = str_replace('SearchForm_', '', $value);
return "admin/crm/$value/search";
}
/**
* Action to execute a search using the model context
*/
function search() {
$className = $this->urlParams['ClassName'];
if (in_array($className, $this->getManagedModels())) {
$model = singleton($className);
// @todo need to filter post vars
$searchKeys = array_intersect_key($_POST, $model->searchableFields());
$context = $model->getDefaultSearchContext();
$results = $context->getResultSet($searchKeys);
if ($results) {
echo "<table>";
foreach($results as $row) {
$uri = Director::absoluteBaseUrl();
echo "<tr id=\"{$uri}admin/crm/$className/view/$row->ID\">";
foreach($model->searchableFields() as $key=>$val) {
echo "<td>";
echo $row->getField($key);
echo "</td>";
}
echo "</tr>";
}
echo "</table>";
} else {
echo "<p>No results found</p>";
}
}
}
function view() {
$className = $this->urlParams['ClassName'];
$ID = $this->urlParams['ID'];
if (in_array($className, $this->getManagedModels())) {
$model = DataObject::get_by_id($className, $ID);
$fields = $model->getCMSFields();
$form = new Form($this, $className, $fields, new FieldSet());
$form->makeReadonly();
$form->loadNonBlankDataFrom($model);
echo $form->forTemplate();
}
}
}
?>