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