silverstripe-userforms/code/model/EditableCustomRule.php

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<?php
/**
* A custom rule for showing / hiding an EditableFormField
* based the value of another EditableFormField.
*
* @method EditableFormField Parent()
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* @package userforms
*/
class EditableCustomRule extends DataObject {
private static $condition_options = array(
"IsBlank" => "Is blank",
"IsNotBlank" => "Is not blank",
"HasValue" => "Equals",
"ValueNot" => "Doesn't equal",
"ValueLessThan" => "Less than",
"ValueLessThanEqual" => "Less than or equal",
"ValueGreaterThan" => "Greater than",
"ValueGreaterThanEqual" => "Greater than or equal"
);
private static $db = array(
'Display' => 'Enum("Show,Hide")',
'ConditionOption' => 'Enum("IsBlank,IsNotBlank,HasValue,ValueNot,ValueLessThan,ValueLessThanEqual,ValueGreaterThan,ValueGreaterThanEqual")',
'FieldValue' => 'Varchar(255)'
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);
private static $has_one = array(
'Parent' => 'EditableFormField',
'ConditionField' => 'EditableFormField'
);
/**
* Built in extensions required
*
* @config
* @var array
*/
private static $extensions = array(
"Versioned('Stage', 'Live')"
);
/**
* Publish this custom rule to the live site
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*
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* Wrapper for the {@link Versioned} publish function
*/
public function doPublish($fromStage, $toStage, $createNewVersion = false) {
$this->publish($fromStage, $toStage, $createNewVersion);
}
/**
* Delete this custom rule from a given stage
*
* Wrapper for the {@link Versioned} deleteFromStage function
*/
public function doDeleteFromStage($stage) {
$this->deleteFromStage($stage);
}
/**
* @param Member $member
* @return bool
*/
public function canDelete($member = null) {
return $this->canEdit($member);
}
/**
* @param Member $member
* @return bool
*/
public function canEdit($member = null) {
return $this->Parent()->canEdit($member);
}
/**
* @param Member $member
* @return bool
*/
public function canView($member = null) {
return $this->Parent()->canView($member);
}
/**
* Return whether a user can create an object of this type
*
* @param Member $member
* @param array $context Virtual parameter to allow context to be passed in to check
* @return bool
*/
public function canCreate($member = null) {
// Check parent page
$parent = $this->getCanCreateContext(func_get_args());
if($parent) {
return $parent->canEdit($member);
}
// Fall back to secure admin permissions
return parent::canCreate($member);
}
/**
* Helper method to check the parent for this object
*
* @param array $args List of arguments passed to canCreate
* @return DataObject Some parent dataobject to inherit permissions from
*/
protected function getCanCreateContext($args) {
// Inspect second parameter to canCreate for a 'Parent' context
if(isset($args[1]['Parent'])) {
return $args[1]['Parent'];
}
// Hack in currently edited page if context is missing
if(Controller::has_curr() && Controller::curr() instanceof CMSMain) {
return Controller::curr()->currentPage();
}
// No page being edited
return null;
}
/**
* @param Member $member
* @return bool
*/
public function canPublish($member = null) {
return $this->canEdit($member);
}
/**
* @param Member $member
* @return bool
*/
public function canUnpublish($member = null) {
return $this->canDelete($member);
}
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}