632 lines
24 KiB
PHP
632 lines
24 KiB
PHP
<?php
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/**
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* @file
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* Contains the Calendar row style plugin.
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*
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* This plugin takes the view results, finds the date value for each,
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* then compares that date to the date range for the current view.
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* Items that started before or ended after the current date range
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* are shortened to the current range. Items that extend over more
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* than one day are cloned to create a calendar item for each day.
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* The resulting array of results (which may have a different number
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* of items than the original view result) are then passed back
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* to the style plugin so they can be displayed in a calendar.
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*
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*/
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/**
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* Plugin which creates a view on the resulting object
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* and formats it as a Calendar node.
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*/
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class calendar_plugin_row extends views_plugin_row {
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// Stores the entities loaded with pre_render.
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var $entities = array();
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function init(&$view, &$display, $options = NULL) {
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parent::init($view, $display, $options);
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$this->base_table = $view->base_table;
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$this->base_field = $view->base_field;
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}
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/**
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* Helper function to find the date argument handler for this view.
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*/
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function date_argument_handler() {
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foreach ($this->view->argument as $name => $handler) {
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if (date_views_handler_is_date($handler, 'argument')) {
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return $handler;
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}
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}
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}
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function option_definition() {
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$options = parent::option_definition();
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$options['date_fields'] = array('default' => array());
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$options['calendar_date_link'] = array('default' => '');
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$options['colors'] = array(
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'contains' => array(
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'legend' => array('default' => ''),
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'calendar_colors_type' => array('default' => array()),
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'taxonomy_field' => array('default' => ''),
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'calendar_colors_vocabulary' => array('default' => array()),
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'calendar_colors_taxonomy' => array('default' => array()),
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'calendar_colors_group' => array('default' => array()),
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));
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return $options;
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}
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/**
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* Provide a form for setting options.
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*/
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function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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$form['markup']['#markup'] = t("The calendar row plugin will format view results as calendar items. Make sure this display has a 'Calendar' format and uses a 'Date' contextual filter, or this plugin will not work correctly.");
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$form['calendar_date_link'] = array(
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'#title' => t('Add new date link'),
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'#type' => 'select',
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'#default_value' => $this->options['calendar_date_link'],
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'#options' => array('' => t('No link')) + node_type_get_names(),
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'#description' => t('Display a link to add a new date of the specified content type. Displayed only to users with appropriate permissions.'),
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);
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$form['colors'] = array(
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'#type' => 'fieldset',
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'#title' => t('Legend Colors'),
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'#description' => t('Set a hex color value (like #ffffff) to use in the calendar legend for each content type. Items with empty values will have no stripe in the calendar and will not be added to the legend.'),
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);
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$options = array(
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'' => t('None')
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);
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if ($this->view->base_table == 'node') {
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$options['type'] = t('Based on Content Type');
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}
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if (module_exists('taxonomy')) {
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$options['taxonomy'] = t('Based on Taxonomy');
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}
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if (module_exists('og')) {
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$options['group'] = t('Based on Organic Group');
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}
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// If none of the options but the None option is available, stop here.
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if (count($options) == 1) {
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return;
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}
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$form['colors']['legend'] = array(
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'#title' => t('Stripes'),
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'#description' => t('Add stripes to calendar items.'),
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'#type' => 'select',
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'#options' => $options,
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'#default_value' => $this->options['colors']['legend'],
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);
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if ($this->view->base_table == 'node') {
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$colors = $this->options['colors']['calendar_colors_type'];
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$type_names = node_type_get_names();
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foreach ($type_names as $key => $name) {
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$form['colors']['calendar_colors_type'][$key] = array(
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'#title' => check_plain($name),
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'#type' => 'textfield',
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'#default_value' => isset($colors[$key]) ? $colors[$key] : '#ffffff',
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'#size' => 7,
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'#maxlength' => 7,
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'#element_validate' => array('calendar_validate_hex_color'),
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'#dependency' => array('edit-row-options-colors-legend' => array('type')),
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'#prefix' => '<div class="calendar-colorpicker-wrapper">',
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'#suffix' => '<div class="calendar-colorpicker"></div></div>',
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'#attributes' => array('class' => array('edit-calendar-colorpicker')),
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'#attached' => array(
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// Add Farbtastic color picker.
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'library' => array(
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array('system', 'farbtastic'),
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),
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// Add javascript to trigger the colorpicker.
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'js' => array(drupal_get_path('module', 'calendar') . '/js/calendar_colorpicker.js'),
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),
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);
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}
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}
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if (module_exists('taxonomy')) {
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$vocab_field_options = array();
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$fields = $this->display->handler->get_option('fields');
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foreach ($fields as $name => $field) {
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if (!empty($field['type']) && $field['type'] == 'taxonomy_term_reference_link') {
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$vocab_field_options[$field['field']] = $field['field'];
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}
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}
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$form['colors']['taxonomy_field'] = array(
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'#title' => t('Term field'),
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'#type' => !empty($vocab_field_options) ? 'select' : 'hidden',
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'#default_value' => $this->options['colors']['taxonomy_field'],
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'#description' => t("Select the taxonomy term field to use when setting stripe colors. This works best for vocabularies with only a limited number of possible terms."),
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'#options' => $vocab_field_options,
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'#dependency' => array('edit-row-options-colors-legend' => array('taxonomy')),
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);
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if (empty($vocab_field_options)) {
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$form['colors']['taxonomy_field']['#options'] = array('' => '');
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$form['colors']['taxonomy_field']['#suffix'] = t('You must add a term field to this view to use taxonomy stripe values. This works best for vocabularies with only a limited number of possible terms.');
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}
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$taxonomy_field = field_info_field($this->options['colors']['taxonomy_field']);
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$vocab_names[] = array();
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foreach ((array) $taxonomy_field['settings']['allowed_values'] as $delta => $options) {
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$vocab_names[] = $options['vocabulary'];
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}
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$taxonomies = taxonomy_get_vocabularies();
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foreach ($taxonomies as $vid => $vocab) {
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if (in_array($vocab->machine_name, $vocab_names)) {
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$this->options['colors']['calendar_colors_vocabulary'][] = $vid;
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}
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}
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$form['colors']['calendar_colors_vocabulary'] = array(
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'#title' => t('Vocabulary Legend Types'),
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'#type' => 'value',
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'#value' => $this->options['colors']['calendar_colors_vocabulary'],
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);
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$vocabularies = (array) $this->options['colors']['calendar_colors_vocabulary'];
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$term_colors = $this->options['colors']['calendar_colors_taxonomy'];
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foreach ($vocabularies as $vid) {
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$vocab = taxonomy_get_tree($vid);
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foreach ($vocab as $tid => $term) {
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$form['colors']['calendar_colors_taxonomy'][$term->tid] = array(
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'#title' => check_plain(t($term->name)),
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'#type' => 'textfield',
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'#default_value' => isset($term_colors[$term->tid]) ? $term_colors[$term->tid] : '#ffffff',
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'#size' => 7,
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'#maxlength' => 7,
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'#access' => !empty($vocab_field_options),
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'#dependency' => array('edit-row-options-colors-legend' => array('taxonomy')),
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'#element_validate' => array('calendar_validate_hex_color'),
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'#prefix' => '<div class="calendar-colorpicker-wrapper">',
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'#suffix' => '<div class="calendar-colorpicker"></div></div>',
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'#attributes' => array('class' => array('edit-calendar-colorpicker')),
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'#attached' => array(
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// Add Farbtastic color picker.
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'library' => array(
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array('system', 'farbtastic'),
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),
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// Add javascript to trigger the colorpicker.
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'js' => array(drupal_get_path('module', 'calendar') . '/js/calendar_colorpicker.js'),
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),
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);
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}
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}
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}
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if (module_exists('og')) {
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$colors_group = $this->options['colors']['calendar_colors_group'];
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$groups = og_get_all_group();
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foreach ($groups as $gid) {
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$form['colors']['calendar_colors_group'][$gid] = array(
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'#title' => check_plain(t(og_label($gid))),
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'#type' => 'textfield',
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'#default_value' => isset($colors_group[$gid]) ? $colors_group[$gid] : '#ffffff',
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'#dependency' => array('edit-row-options-colors-legend' => array('group')),
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'#element_validate' => array('calendar_validate_hex_color'),
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'#prefix' => '<div class="calendar-colorpicker-wrapper">',
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'#suffix' => '<div class="calendar-colorpicker"></div></div>',
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'#attributes' => array('class' => array('edit-calendar-colorpicker')),
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'#attached' => array(
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// Add Farbtastic color picker.
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'library' => array(
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array('system', 'farbtastic'),
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),
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// Add javascript to trigger the colorpicker.
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'js' => array(drupal_get_path('module', 'calendar') . '/js/calendar_colorpicker.js'),
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),
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);
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}
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}
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}
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function options_submit(&$form, &$form_state) {
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parent::options_submit($form, $form_state);
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if ($this->view->base_table == 'node') {
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$path = $this->view->display_handler->get_option('path');
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calendar_clear_link_path($path);
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if (!empty($form_state['values']['row_options']['calendar_date_link'])) {
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$node_type = $form_state['values']['row_options']['calendar_date_link'];
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calendar_set_link('node', $node_type, $path);
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}
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}
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}
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function pre_render($values) {
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// @TODO When the date is coming in through a relationship, the nid
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// of the view is not the right node to use, then we need the related node.
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// Need to sort out how that should be handled.
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// Preload each entity used in this view from the cache.
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// Provides all the entity values relatively cheaply, and we don't
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// need to do it repeatedly for the same entity if there are
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// multiple results for one entity.
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$ids = array();
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foreach ($values as $row) {
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// Use the $id as the key so we don't create more than one value per entity.
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$id = $row->{$this->field_alias};
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// Node revisions need special loading.
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if ($this->view->base_table == 'node_revision') {
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$this->entities[$id] = node_load(NULL, $id);
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}
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// For other entities we just create an array of ids to pass
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// to entity_load().
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else {
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$ids[$id] = $id;
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}
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}
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$base_tables = date_views_base_tables();
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$this->entity_type = $base_tables[$this->view->base_table];
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if (!empty($ids)) {
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$this->entities = entity_load($this->entity_type, $ids);
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}
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// Let the style know if a link to create a new date is required.
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$this->view->date_info->calendar_date_link = $this->options['calendar_date_link'];
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// Identify the date argument and fields that apply to this view.
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// Preload the Date Views field info for each field, keyed by the
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// field name, so we know how to retrieve field values from the cached node.
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$data = date_views_fields($this->view->base_table);
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$data = $data['name'];
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$date_fields = array();
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foreach ($this->view->argument as $handler) {
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if (date_views_handler_is_date($handler, 'argument')) {
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// If this is the complex Date argument, the date fields are stored in the handler options,
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// otherwise we are using the simple date field argument handler.
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if ($handler->definition['handler'] != 'date_views_argument_handler') {
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$alias = $handler->table_alias . '.' . $handler->field;
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$info = $data[$alias];
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$field_name = str_replace(array('_value2', '_value'), '', $info['real_field_name']);
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$date_fields[$field_name] = $info;
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}
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else {
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foreach ($handler->options['date_fields'] as $alias) {
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$info = $data[$alias];
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$field_name = str_replace(array('_value2', '_value'), '', $info['real_field_name']);
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// This is ugly and hacky but I can't figure out any generic way to
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// recognize that the node module is going to give some the revision timestamp
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// a different field name on the entity than the actual column name in the database.
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if ($this->view->base_table == 'node_revision' && $field_name == 'timestamp') {
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$field_name = 'revision_timestamp';
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}
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$date_fields[$field_name] = $info;
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}
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}
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$this->date_argument = $handler;
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$this->date_fields = $date_fields;
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}
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}
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// Get the language for this view.
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$this->language = $this->display->handler->get_option('field_language');
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$substitutions = views_views_query_substitutions($this->view);
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if (array_key_exists($this->language, $substitutions)) {
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$this->language = $substitutions[$this->language];
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}
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}
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function render($row) {
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global $base_url;
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$rows = array();
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$date_info = $this->date_argument->view->date_info;
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$id = $row->{$this->field_alias};
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if (!is_numeric($id)) {
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return $rows;
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}
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// There could be more than one date field in a view
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// so iterate through all of them to find the right values
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// for this view result.
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foreach ($this->date_fields as $field_name => $info) {
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// Load the specified node:
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// We have to clone this or nodes on other views on this page,
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// like an Upcoming block on the same page as a calendar view,
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// will end up acquiring the values we set here.
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$entity = clone($this->entities[$id]);
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if (empty($entity)) {
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return $rows;
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}
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$table_name = $info['table_name'];
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$delta_field = $info['delta_field'];
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$tz_handling = $info['tz_handling'];
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$tz_field = $info['timezone_field'];
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$rrule_field = $info['rrule_field'];
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$is_field = $info['is_field'];
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$info = entity_get_info($this->entity_type);
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$this->id_field = $info['entity keys']['id'];
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$this->id = $entity->{$this->id_field};
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$this->type = !empty($info['entity keys']['bundle']) ? $info['entity keys']['bundle'] : $this->entity_type;
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$this->title = entity_label($this->entity_type, $entity);
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$uri = entity_uri($this->entity_type, $entity);
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$uri['options']['absolute'] = TRUE;
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$this->url = url($uri['path'], $uri['options']);
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// Retrieve the field value(s) that matched our query from the cached node.
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// Find the date and set it to the right timezone.
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$entity->date_id = array();
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$item_start_date = NULL;
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$item_end_date = NULL;
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$granularity = 'second';
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$increment = 1;
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if ($is_field) {
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$delta = isset($row->$delta_field) ? $row->$delta_field : 0;
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$items = field_get_items($this->view->base_table, $entity, $field_name, $this->language);
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$item = $items[$delta];
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$db_tz = date_get_timezone_db($tz_handling, isset($item->$tz_field) ? $item->$tz_field : $date_info->display_timezone_name);
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$to_zone = date_get_timezone($tz_handling, isset($item->$tz_field) ? $item->$tz_field : $date_info->display_timezone_name);
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// Set the date_id for the node, used to identify which field value to display for
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// fields that have multiple values. The theme expects it to be an array.
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$entity->date_id = array('calendar.' . $id . '.' . $field_name . '.' . $delta);
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if (!empty($item['value'])) {
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$item_start_date = new dateObject($item['value'], $db_tz);
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$item_end_date = array_key_exists('value2', $item) ? new dateObject($item['value2'], $db_tz) : $item_start_date;
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}
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$cck_field = field_info_field($field_name);
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$instance = field_info_instance($this->view->base_table, $field_name, $entity->type);
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$granularity = date_granularity_precision($cck_field['settings']['granularity']);
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$increment = $instance['widget']['settings']['increment'];
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}
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elseif (!empty($entity->$field_name)) {
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$item = $entity->$field_name;
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$db_tz = date_get_timezone_db($tz_handling, isset($item->$tz_field) ? $item->$tz_field : $date_info->display_timezone_name);
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$to_zone = date_get_timezone($tz_handling, isset($item->$tz_field) ? $item->$tz_field : $date_info->display_timezone_name);
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$item_start_date = new dateObject($item, $db_tz);
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$item_end_date = $item_start_date;
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$entity->date_id = array('calendar.' . $id . '.' . $field_name . '.0');
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}
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// If we don't have a date value, go no further.
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if (empty($item_start_date)) {
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continue;
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}
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// Set the item date to the proper display timezone;
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$item_start_date->setTimezone(new dateTimezone($to_zone));
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$item_end_date->setTimezone(new dateTimezone($to_zone));
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$event = new stdClass();
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$event->id = $this->id;
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$event->title = $this->title;
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$event->type = $this->type;
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$event->date_start = $item_start_date;
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$event->date_end = $item_end_date;
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$event->db_tz = $db_tz;
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$event->to_zone = $to_zone;
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$event->granularity = $granularity;
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$event->increment = $increment;
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$event->field = $is_field ? $item : NULL;
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$event->url = $this->url;
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$event->row = $row;
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$event->entity = $entity;
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// All calendar row plugins should provide a date_id that the theme can use.
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$event->date_id = $entity->date_id[0];
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$entities = $this->explode_values($event);
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foreach ($entities as $entity) {
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switch ($this->options['colors']['legend']) {
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case 'type':
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$this->calendar_node_type_stripe($entity);
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break;
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case 'taxonomy':
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$this->calendar_taxonomy_stripe($entity);
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break;
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case 'group':
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$this->calendar_group_stripe($entity);
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break;
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}
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$rows[] = $entity;
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}
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}
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return $rows;
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}
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function explode_values($event) {
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$rows = array();
|
|
|
|
$date_info = $this->date_argument->view->date_info;
|
|
$item_start_date = $event->date_start;
|
|
$item_end_date = $event->date_end;
|
|
$to_zone = $event->to_zone;
|
|
$db_tz = $event->db_tz;
|
|
$granularity = $event->granularity;
|
|
$increment = $event->increment;
|
|
|
|
// Now that we have an 'entity' for each view result, we need
|
|
// to remove anything outside the view date range,
|
|
// and possibly create additional nodes so that we have a 'node'
|
|
// for each day that this item occupies in this view.
|
|
$now = max($date_info->min_zone_string, $item_start_date->format(DATE_FORMAT_DATE));
|
|
$to = min($date_info->max_zone_string, $item_end_date->format(DATE_FORMAT_DATE));
|
|
$next = new DateObject($now . ' 00:00:00', $date_info->display_timezone);
|
|
if ($date_info->display_timezone_name != $to_zone) {
|
|
// Make $start and $end (derived from $node) use the timezone $to_zone, just as the original dates do.
|
|
date_timezone_set($next, timezone_open($to_zone));
|
|
}
|
|
if (empty($to) || $now > $to) {
|
|
$to = $now;
|
|
}
|
|
// $now and $next are midnight (in display timezone) on the first day where node will occur.
|
|
// $to is midnight on the last day where node will occur.
|
|
// All three were limited by the min-max date range of the view.
|
|
$pos = 0;
|
|
while (!empty($now) && $now <= $to) {
|
|
$entity = clone($event);
|
|
|
|
// Get start and end of current day.
|
|
$start = $next->format(DATE_FORMAT_DATETIME);
|
|
date_modify($next, '+1 day');
|
|
date_modify($next, '-1 second');
|
|
$end = $next->format(DATE_FORMAT_DATETIME);
|
|
|
|
// Get start and end of item, formatted the same way.
|
|
$item_start = $item_start_date->format(DATE_FORMAT_DATETIME);
|
|
$item_end = $item_end_date->format(DATE_FORMAT_DATETIME);
|
|
|
|
// Get intersection of current day and the node value's duration (as strings in $to_zone timezone).
|
|
$entity->calendar_start = $item_start < $start ? $start : $item_start;
|
|
$entity->calendar_end = !empty($item_end) ? ($item_end > $end ? $end : $item_end) : $node->calendar_start;
|
|
|
|
// Make date objects
|
|
$entity->calendar_start_date = date_create($entity->calendar_start, timezone_open($to_zone));
|
|
$entity->calendar_end_date = date_create($entity->calendar_end, timezone_open($to_zone));
|
|
|
|
// Change string timezones into
|
|
// calendar_start and calendar_end are UTC dates as formatted strings
|
|
$entity->calendar_start = date_format($entity->calendar_start_date, DATE_FORMAT_DATETIME);
|
|
$entity->calendar_end = date_format($entity->calendar_end_date, DATE_FORMAT_DATETIME);
|
|
$entity->calendar_all_day = date_is_all_day($entity->calendar_start, $entity->calendar_end, $granularity, $increment);
|
|
|
|
unset($entity->calendar_fields);
|
|
if (isset($entity) && (empty($entity->calendar_start))) {
|
|
// if no date for the node and no date in the item
|
|
// there is no way to display it on the calendar
|
|
unset($entity);
|
|
}
|
|
else {
|
|
$entity->date_id .= '.' . $pos;
|
|
|
|
$rows[] = $entity;
|
|
unset($entity);
|
|
}
|
|
date_modify($next, '+1 second');
|
|
$now = date_format($next, DATE_FORMAT_DATE);
|
|
$pos++;
|
|
|
|
}
|
|
return $rows;
|
|
}
|
|
|
|
/**
|
|
* Create a stripe base on node type.
|
|
*/
|
|
function calendar_node_type_stripe(&$entity) {
|
|
$colors = isset($this->options['colors']['calendar_colors_type']) ? $this->options['colors']['calendar_colors_type'] : array();
|
|
if (empty($colors)) {
|
|
return;
|
|
}
|
|
if (empty($entity->type)) {
|
|
return;
|
|
}
|
|
|
|
$type_names = node_type_get_names();
|
|
$type = $entity->type;
|
|
$label = '';
|
|
$stripe = '';
|
|
if (!(isset($entity->stripe))) {
|
|
$entity->stripe = array();
|
|
$entity->stripe_label = array();
|
|
}
|
|
if (array_key_exists($type, $type_names)) {
|
|
$label = $type_names[$type];
|
|
}
|
|
if (array_key_exists($type, $colors)) {
|
|
$stripe = $colors[$type];
|
|
}
|
|
|
|
$entity->stripe[] = $stripe;
|
|
$entity->stripe_label[] = $label;
|
|
return $stripe;
|
|
}
|
|
|
|
/**
|
|
* Create a stripe based on a taxonomy term.
|
|
*/
|
|
|
|
function calendar_taxonomy_stripe(&$entity) {
|
|
$term_colors = isset($this->options['colors']['calendar_colors_taxonomy']) ? $this->options['colors']['calendar_colors_taxonomy'] : array();
|
|
if (empty($term_colors)) {
|
|
return;
|
|
}
|
|
|
|
$terms = array();
|
|
if ($this->options['colors']['legend'] == 'taxonomy') {
|
|
$term_field_name = $this->options['colors']['taxonomy_field'];
|
|
|
|
if ($term_field = field_get_items($this->view->base_table, $entity->entity, $term_field_name)) {
|
|
foreach ($term_field as $delta => $items) {
|
|
foreach ($items as $item) {
|
|
$terms[] = $item['tid'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (empty($terms)) {
|
|
return;
|
|
}
|
|
|
|
if (!(isset($entity->stripe))) {
|
|
$entity->stripe = array();
|
|
$entity->stripe_label = array();
|
|
}
|
|
if (count($terms)) {
|
|
foreach ($terms as $tid) {
|
|
$term_for_entity = taxonomy_term_load($tid);
|
|
if (!array_key_exists($term_for_entity->tid, $term_colors)) {
|
|
continue;
|
|
}
|
|
$stripe = $term_colors[$term_for_entity->tid];
|
|
$stripe_label = $term_for_entity->name;
|
|
$entity->stripe[] = $stripe;
|
|
$entity->stripe_label[] = $stripe_label;
|
|
}
|
|
}
|
|
else {
|
|
$entity->stripe[] = '';
|
|
$entity->stripe_label[] = '';
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Create a stripe based on group.
|
|
*/
|
|
function calendar_group_stripe(&$entity) {
|
|
$colors_group = isset($this->options['colors']['calendar_colors_group']) ? $this->options['colors']['calendar_colors_group'] : array();
|
|
|
|
if (empty($colors_group)) {
|
|
return;
|
|
}
|
|
if (!function_exists('og_get_entity_groups')) {
|
|
return;
|
|
}
|
|
$groups_for_entity = og_get_entity_groups($this->view->base_table, $entity);
|
|
if (!(isset($entity->stripe))) {
|
|
$entity->stripe = array();
|
|
$entity->stripe_label = array();
|
|
}
|
|
if (count($groups_for_entity)) {
|
|
foreach ($groups_for_entity as $gid => $group_name) {
|
|
if (!array_key_exists($gid, $colors_group)) {
|
|
continue;
|
|
}
|
|
$stripe = $colors_group[$gid];
|
|
$stripe_label = $group_name;
|
|
$entity->stripe[] = $stripe;
|
|
$entity->stripe_label[] = $stripe_label;
|
|
}
|
|
}
|
|
else {
|
|
$entity->stripe[] = '';
|
|
$entity->stripe_label[] = '';
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|