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<?php
/**
* @file
* Definition of views_handler_argument_date.
*/
/**
* Abstract argument handler for dates.
*
* Adds an option to set a default argument based on the current date.
*
* @param $arg_format
* The format string to use on the current time when
* creating a default date argument.
*
* Definitions terms:
* - many to one: If true, the "many to one" helper will be used.
* - invalid input: A string to give to the user for obviously invalid input.
* This is deprecated in favor of argument validators.
*
* @see views_many_to_one_helper()
*
* @ingroup views_argument_handlers
*/
class views_handler_argument_date extends views_handler_argument_formula {
var $option_name = 'default_argument_date';
var $arg_format = 'Y-m-d';
/**
* Add an option to set the default value to the current date.
*/
function default_argument_form(&$form, &$form_state) {
parent::default_argument_form($form, $form_state);
$form['default_argument_type']['#options'] += array('date' => t('Current date'));
$form['default_argument_type']['#options'] += array('node_created' => t("Current node's creation time"));
$form['default_argument_type']['#options'] += array('node_changed' => t("Current node's update time")); }
/**
* Set the empty argument value to the current date,
* formatted appropriately for this argument.
*/
function get_default_argument($raw = FALSE) {
if (!$raw && $this->options['default_argument_type'] == 'date') {
return date($this->arg_format, REQUEST_TIME);
}
else if (!$raw && in_array($this->options['default_argument_type'], array('node_created', 'node_changed'))) {
foreach (range(1, 3) as $i) {
$node = menu_get_object('node', $i);
if (!empty($node)) {
continue;
}
}
if (arg(0) == 'node' && is_numeric(arg(1))) {
$node = node_load(arg(1));
}
if (empty($node)) {
return parent::get_default_argument();
}
elseif ($this->options['default_argument_type'] == 'node_created') {
return date($this->arg_format, $node->created);
}
elseif ($this->options['default_argument_type'] == 'node_changed') {
return date($this->arg_format, $node->changed);
}
}
return parent::get_default_argument($raw);
}
/**
* The date handler provides some default argument types, which aren't argument default plugins,
* so addapt the export mechanism.
*/
function export_plugin($indent, $prefix, $storage, $option, $definition, $parents) {
// Only use a special behaviour for the special argument types, else just
// use the default behaviour.
if ($option == 'default_argument_type') {
$type = 'argument default';
$option_name = 'default_argument_options';
$plugin = $this->get_plugin($type);
$name = $this->options[$option];
if (in_array($name, array('date', 'node_created', 'node_changed'))) {
// Write which plugin to use.
$output = $indent . $prefix . "['$option'] = '$name';\n";
return $output;
}
}
return parent::export_plugin($indent, $prefix, $storage, $option, $definition, $parents);
}
function get_sort_name() {
return t('Date', array(), array('context' => 'Sort order'));
}
}
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