Given a raw value (value as stored in DB), return the value as it would appear in a Page object
In many cases, no change to the value may be necessary, but if a Page expects this value as an object (for instance) then this would be the method that converts that value to an object and returns it.
This method is called by the Page class, which takes the value provided by Fieldtype::loadPageField()
and sends it to this method before making it a part of the Page.
Usage
$items = $fieldtypePage->wakeupValue(Page $page, Field $field, $value);
Arguments
Hooking FieldtypePage::wakeupValue(…)
You can add your own hook events that are executed either before or after the Fieldtype
method is executed. Examples of both are included below. A good place for hook code such as this is in your /site/ready.php file.
Hooking before
The 'before' hooks are called immediately before each Fieldtype
method call is executed. This type of hook is especially useful for modifying arguments before they are sent to the method.
$this->addHookBefore('FieldtypePage::wakeupValue', function(HookEvent $event) {
// Get the object the event occurred on, if needed
$FieldtypePage = $event->object;
// Get values of arguments sent to hook (and optionally modify them)
$page = $event->arguments(0);
$field = $event->arguments(1);
$value = $event->arguments(2);
/* Your code here, perhaps modifying arguments */
// Populate back arguments (if you have modified them)
$event->arguments(0, $page);
$event->arguments(1, $field);
$event->arguments(2, $value);
});
Hooking after
The 'after' hooks are called immediately after each Fieldtype
method call is executed. This type of hook is especially useful for modifying the value that was returned by the method call.
$this->addHookAfter('FieldtypePage::wakeupValue', function(HookEvent $event) {
// Get the object the event occurred on, if needed
$FieldtypePage = $event->object;
// An 'after' hook can retrieve and/or modify the return value
$return = $event->return;
// Get values of arguments sent to hook (if needed)
$page = $event->arguments(0);
$field = $event->arguments(1);
$value = $event->arguments(2);
/* Your code here, perhaps modifying the return value */
// Populate back return value, if you have modified it
$event->return = $return;
});
See Also
FieldtypePage methods and properties
API reference based on ProcessWire core version 3.0.236