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<?php
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// $Id: date_facets.module,v 1.9 2009/05/01 21:21:53 davidlesieur Exp $
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/**
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* @file
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* Exposes CCK Date fields as facets.
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*/
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module_load_include('inc', 'cck_facets');
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// TODO: Support 'todate' column.
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// TODO: Timezone handling.
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// TODO: Support for CCK Date granularity.
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/**
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* Implementation of hook_cck_facets_collect().
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*/
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function date_facets_cck_facets_collect(&$facets, $field, $domain, $env, $arg = NULL) {
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if ($field['type'] == 'date' || $field['type'] == 'datestamp') {
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$facet_class = $field['type'] .'_facet';
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$category_class = $field['type'] .'_facet_category';
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switch ($domain) {
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case 'facets':
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$facets[] = new $facet_class($field);
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break;
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case 'text':
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// Scan the given search text for a '{field_name}:{value}'
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// token, and create facets from it.
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if ($date = search_query_extract($arg, $field['field_name'])) {
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if (preg_match('/^([12][0-9][0-9][0-9])(-([01][0-9])(-([0-3][0-9]))?)?$/', $date, $matches)) {
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if (_date_facets_check_date($matches[1], $matches[3], $matches[5])) {
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// Create an active facet with the value found in the search text.
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$active_path = array();
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if (isset($matches[1])) {
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// Found year.
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$active_path[] = new $category_class($field, $matches[1], NULL, NULL);
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}
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if (isset($matches[3])) {
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// Found month.
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$active_path[] = new $category_class($field, $matches[1], $matches[3], NULL);
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}
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if (isset($matches[5])) {
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// Found day.
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$active_path[] = new $category_class($field, $matches[1], $matches[3], $matches[5]);
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}
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$facets[] = new $facet_class($field, $active_path);
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}
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}
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// Remove the parsed text
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$arg = search_query_insert($arg, $field['field_name']);
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}
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break;
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case 'node':
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if (isset($arg->{$field['field_name']}) && is_array($arg->{$field['field_name']})) {
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if ($field['type'] == 'date') {
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// Iterate through the field's multiple values.
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foreach ($arg->{$field['field_name']} as $item) {
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$date = array_shift($item); // Take the item's main column.
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if (preg_match('/^([12][0-9][0-9][0-9])(-([01][0-9])(-([0-3][0-9]))?)?/', $date, $matches)) {
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$active_path = array(
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new date_facet_category($field, $matches[1], NULL, NULL),
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new date_facet_category($field, $matches[1], $matches[3], NULL),
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new date_facet_category($field, $matches[1], $matches[3], $matches[5]),
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);
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// Create an active facet.
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$facets[] = new date_facet($field, $active_path);
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}
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}
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}
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elseif ($field['type'] == 'datestamp') {
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// Iterate through the field's multiple values.
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foreach ($arg->{$field['field_name']} as $item) {
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$timestamp = array_shift($item); // Take the item's main column.
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$date = date_make_date($timestamp, $field['timezone_db'], $field['type'], $field['granularity']);
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$year = date_format_date($date, 'custom', 'Y');
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$month = date_format_date($date, 'custom', 'n');
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$day = date_format_date($date, 'custom', 'j');
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$active_path = array(
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new datestamp_facet_category($field, $year, NULL, NULL),
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new datestamp_facet_category($field, $year, $month, NULL),
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new datestamp_facet_category($field, $year, $month, $day),
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);
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$facets[] = new datestamp_facet($field, $active_path);
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}
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}
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}
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break;
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}
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}
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return $arg;
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}
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/**
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* A facet for Date fields.
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*
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* @see date_facet_category
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*/
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class date_facet extends cck_facet {
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/**
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* Constructor.
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*
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* @param $field
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* The field corresponding to this facet.
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* @param $active_path
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* Array representing the path leading to the active category, including the
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* active category itself. Defaults to an empty array, meaning no active
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* category.
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*/
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function date_facet($field, $active_path = array()) {
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parent::cck_facet($field, $active_path);
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}
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/**
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* Returns the search text for this facet, taking into account this facet's
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* active path.
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*/
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function get_text() {
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if ($category = $this->get_active_category()) {
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return $category->get_text();
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}
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return '';
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}
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/**
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* Handler for the 'count' sort criteria.
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*/
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function build_sort_query_count(&$query) {
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$query->add_orderby('count', 'DESC');
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$this->build_sort_query_field($query);
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}
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/**
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* Handler for the 'field' sort criteria.
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*/
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function build_sort_query_field(&$query) {
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$query->add_orderby($this->_field['field_name'] .'_year', 'ASC');
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if ($query->has_field($this->_field['field_name'] .'_month')) {
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$query->add_orderby($this->_field['field_name'] .'_month', 'ASC');
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if ($query->has_field($this->_field['field_name'] .'_day')) {
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$query->add_orderby($this->_field['field_name'] .'_day', 'ASC');
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}
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}
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}
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/**
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* Updates a query for retrieving the root categories of this facet and their
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* associated nodes within the current search results.
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*
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* @param $query
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* The query object to update.
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* @return
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* FALSE if this facet can't have root categories.
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*/
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function build_root_categories_query(&$query) {
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$db_info = _cck_facets_db_info($this->_field);
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$main_column = array_shift($db_info['columns']);
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$query->add_table($db_info['table'], 'vid', 'n', 'vid');
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$query->add_field(NULL, "YEAR(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_year');
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$query->add_where($db_info['table'] .'.'. $main_column['column'] .' IS NOT NULL');
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$query->add_groupby($this->_field['field_name'] .'_year');
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return TRUE;
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}
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/**
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* This factory method creates categories given query results that include the
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* fields selected in get_root_categories_query() or get_subcategories_query().
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*
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* @param $results
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* $results A database query result resource.
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*
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* @return
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* Array of categories.
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*/
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function build_categories($results) {
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$categories = array();
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while ($result = db_fetch_object($results)) {
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$categories[] = new date_facet_category($this->_field, $result->{$this->_field['field_name'] .'_year'}, $result->{$this->_field['field_name'] .'_month'}, $result->{$this->_field['field_name'] .'_day'}, $result->count);
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}
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return $categories;
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}
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}
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/**
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* A facet category for Date fields.
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*/
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class date_facet_category extends cck_facet_category {
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/**
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* Constructs a category for the specified date.
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*
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* @param $year
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* Year corresponding to this category.
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* @param $month
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* Month corresponding to this category. Optional, but must be specified if
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* $day is specified.
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* @param $day
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* Day corresponding to this category. Optional.
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* @param $count
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* The number of nodes associated to this category within the current
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* search. Optional.
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*/
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function date_facet_category($field, $year, $month = NULL, $day = NULL, $count = NULL) {
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parent::cck_facet_category($field, array('year' => $year, 'month' => $month, 'day' => $day), $count);
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}
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/**
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* Return the label of this category.
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*
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* @param $html
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* TRUE when HTML is allowed in the label, FALSE otherwise. Checking this
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* flag allows implementors to provide a rich-text label if desired, and an
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* alternate plain text version for cases where HTML cannot be used. The
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* implementor is responsible to ensure adequate security filtering.
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*/
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function get_label($html = FALSE) {
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if (isset($this->_value['day'])) {
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// Format date with YYYY-MM-DD.
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$timestamp = gmmktime(0, 0, 0, (int)$this->_value['month'], (int)$this->_value['day'], (int)$this->_value['year']);
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$format = variable_get('date_facets_format_ymd', 'm/d/Y');
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}
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elseif (isset($this->_value['month'])) {
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// Format date with YYYY-MM.
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$timestamp = gmmktime(0, 0, 0, (int)$this->_value['month'], 1, (int)$this->_value['year']);
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$format = variable_get('date_facets_format_ym', 'm/Y');
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}
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elseif (isset($this->_value['year'])) {
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// Format date with YYYY.
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$timestamp = gmmktime(0, 0, 0, 1, 1, (int)$this->_value['year']);
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$format = variable_get('date_facets_format_y', 'Y');
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}
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if ($timestamp) {
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return format_date($timestamp, 'custom', $format, 0);
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}
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}
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/**
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* Return the search text for this category.
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*/
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function get_text() {
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$text = sprintf('%04d', $this->_value['year']);
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if (isset($this->_value['month'])) {
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$text .= sprintf('-%02d', $this->_value['month']);
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if (isset($this->_value['day'])) {
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$text .= sprintf('-%02d', $this->_value['day']);
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}
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}
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return $text;
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}
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/**
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* Updates a query for retrieving the subcategories of this category and their
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* associated nodes within the current search results.
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*
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* This only needs to be overridden for hierarchical facets.
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*
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* @param $query
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* The query object to update.
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* @return
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* FALSE if this facet can't have subcategories.
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*/
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function build_subcategories_query(&$query) {
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if (isset($this->_value['day'])) {
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return FALSE; // No subcategories.
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}
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$db_info = _cck_facets_db_info($this->_field);
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$main_column = array_shift($db_info['columns']);
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$query->add_table($db_info['table'], 'vid', 'n', 'vid');
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if (isset($this->_value['month'])) {
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$from = sprintf("'%04d-%02d-01 00:00:00'", $this->_value['year'], $this->_value['month']);
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$query->add_field(NULL, "YEAR(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_year');
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$query->add_field(NULL, "MONTH(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_month');
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$query->add_field(NULL, "DAY(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_day');
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$query->add_where("(${db_info['table']}.${main_column['column']} >= $from)");
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$query->add_where("(${db_info['table']}.${main_column['column']} < $from + INTERVAL 1 MONTH)");
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$query->add_groupby($this->_field['field_name'] .'_day');
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return TRUE;
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}
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elseif (isset($this->_value['year'])) {
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$from = sprintf("'%04d-01-01 00:00:00'", $this->_value['year']);
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$query->add_field(NULL, "YEAR(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_year');
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$query->add_field(NULL, "MONTH(${db_info['table']}.${main_column['column']})", $this->_field['field_name'] .'_month');
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$query->add_where("(${db_info['table']}.${main_column['column']} >= $from)");
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$query->add_where("(${db_info['table']}.${main_column['column']} < $from + INTERVAL 1 YEAR)");
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$query->add_groupby($this->_field['field_name'] .'_month');
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return TRUE;
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}
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return FALSE; // Unreachable, unless something is wrong...
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}
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/**
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* Updates a query for selecting nodes matching this category.
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*
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* @param $query
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* The query object to update.
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*/
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function build_results_query(&$query) {
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$db_info = _cck_facets_db_info($this->_field);
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$main_column = array_shift($db_info['columns']);
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// Since the same table might be joined multiple times in the query, we use
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// the field's name as the table alias to create a unique table reference.
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$table = $query->add_table($db_info['table'], 'vid', 'n', 'vid', $this->_field['field_name']);
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if (isset($this->_value['day'])) {
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$from = sprintf("'%04d-%02d-%02d 00:00:00'", $this->_value['year'], $this->_value['month'], $this->_value['day']);
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$query->add_where("($table.${main_column['column']} >= $from)");
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$query->add_where("($table.${main_column['column']} < $from + INTERVAL 1 DAY)");
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}
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elseif (isset($this->_value['month'])) {
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$from = sprintf("'%04d-%02d-01 00:00:00'", $this->_value['year'], $this->_value['month']);
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$query->add_where("($table.${main_column['column']} >= $from)");
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$query->add_where("($table.${main_column['column']} < $from + INTERVAL 1 MONTH)");
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}
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elseif (isset($this->_value['year'])) {
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$from = sprintf("'%04d-01-01 00:00:00'", $this->_value['year']);
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$query->add_where("($table.${main_column['column']} >= $from)");
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$query->add_where("($table.${main_column['column']} < $from + INTERVAL 1 YEAR)");
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}
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}
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}
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/**
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| 326 |
* A facet for Datestamp fields.
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| 327 |
*
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| 328 |
* @see datestamp_facet_category
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*/
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| 330 |
class datestamp_facet extends date_facet {
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| 331 |
/**
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| 332 |
* Constructor.
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| 333 |
*
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| 334 |
* @param $field
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| 335 |
* The field corresponding to this facet.
|
| 336 |
* @param $active_path
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| 337 |
* Array representing the path leading to the active category, including the
|
| 338 |
* active category itself. Defaults to an empty array, meaning no active
|
| 339 |
* category.
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| 340 |
*/
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| 341 |
function datestamp_facet($field, $active_path = array()) {
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| 342 |
parent::date_facet($field, $active_path);
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| 343 |
}
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| 344 |
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| 345 |
/**
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| 346 |
* Updates a query for retrieving the root categories of this facet and their
|
| 347 |
* associated nodes within the current search results.
|
| 348 |
*
|
| 349 |
* @param $query
|
| 350 |
* The query object to update.
|
| 351 |
* @return
|
| 352 |
* FALSE if this facet can't have root categories.
|
| 353 |
*/
|
| 354 |
function build_root_categories_query(&$query) {
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| 355 |
$db_info = _cck_facets_db_info($this->_field);
|
| 356 |
$main_column = array_shift($db_info['columns']);
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| 357 |
$query->add_table($db_info['table'], 'vid', 'n', 'vid');
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| 358 |
$query->add_field(NULL, "YEAR(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_year');
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| 359 |
$query->add_where($db_info['table'] .'.'. $main_column['column'] .' > 0');
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| 360 |
$query->add_groupby($this->_field['field_name'] .'_year');
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| 361 |
return TRUE;
|
| 362 |
}
|
| 363 |
|
| 364 |
/**
|
| 365 |
* This factory method creates categories given query results that include the
|
| 366 |
* fields selected in get_root_categories_query() or get_subcategories_query().
|
| 367 |
*
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| 368 |
* @param $results
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| 369 |
* $results A database query result resource.
|
| 370 |
*
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| 371 |
* @return
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| 372 |
* Array of categories.
|
| 373 |
*/
|
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function build_categories($results) {
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$categories = array();
|
| 376 |
while ($result = db_fetch_object($results)) {
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$categories[] = new datestamp_facet_category($this->_field, $result->{$this->_field['field_name'] .'_year'}, $result->{$this->_field['field_name'] .'_month'}, $result->{$this->_field['field_name'] .'_day'}, $result->count);
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}
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| 379 |
return $categories;
|
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}
|
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}
|
| 382 |
|
| 383 |
/**
|
| 384 |
* A facet category for Date fields.
|
| 385 |
*/
|
| 386 |
class datestamp_facet_category extends date_facet_category {
|
| 387 |
|
| 388 |
/**
|
| 389 |
* Constructs a category for the specified date.
|
| 390 |
*
|
| 391 |
* @param $year
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| 392 |
* Year corresponding to this category.
|
| 393 |
* @param $month
|
| 394 |
* Month corresponding to this category. Optional, but must be specified if
|
| 395 |
* $day is specified.
|
| 396 |
* @param $day
|
| 397 |
* Day corresponding to this category. Optional.
|
| 398 |
* @param $count
|
| 399 |
* The number of nodes associated to this category within the current
|
| 400 |
* search. Optional.
|
| 401 |
*/
|
| 402 |
function datestamp_facet_category($field, $year, $month = NULL, $day = NULL, $count = NULL) {
|
| 403 |
parent::date_facet_category($field, $year, $month, $day, $count);
|
| 404 |
}
|
| 405 |
|
| 406 |
/**
|
| 407 |
* Updates a query for retrieving the subcategories of this category and their
|
| 408 |
* associated nodes within the current search results.
|
| 409 |
*
|
| 410 |
* This only needs to be overridden for hierarchical facets.
|
| 411 |
*
|
| 412 |
* @param $query
|
| 413 |
* The query object to update.
|
| 414 |
* @return
|
| 415 |
* FALSE if this facet can't have subcategories.
|
| 416 |
*/
|
| 417 |
function build_subcategories_query(&$query) {
|
| 418 |
if (isset($this->_value['day'])) {
|
| 419 |
return FALSE; // No subcategories.
|
| 420 |
}
|
| 421 |
|
| 422 |
$db_info = _cck_facets_db_info($this->_field);
|
| 423 |
$main_column = array_shift($db_info['columns']);
|
| 424 |
$query->add_table($db_info['table'], 'vid', 'n', 'vid');
|
| 425 |
if (isset($this->_value['month'])) {
|
| 426 |
$from = sprintf("'%04d-%02d-01 00:00:00'", $this->_value['year'], $this->_value['month']);
|
| 427 |
$query->add_field(NULL, "YEAR(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_year');
|
| 428 |
$query->add_field(NULL, "MONTH(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_month');
|
| 429 |
$query->add_field(NULL, "DAY(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_day');
|
| 430 |
$query->add_where("(${db_info['table']}.${main_column['column']} >= $from)");
|
| 431 |
$query->add_where("(${db_info['table']}.${main_column['column']} < $from + INTERVAL 1 MONTH)");
|
| 432 |
$query->add_groupby($this->_field['field_name'] .'_day');
|
| 433 |
return TRUE;
|
| 434 |
}
|
| 435 |
elseif (isset($this->_value['year'])) {
|
| 436 |
$from = sprintf("'%04d-01-01 00:00:00'", $this->_value['year']);
|
| 437 |
$query->add_field(NULL, "YEAR(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_year');
|
| 438 |
$query->add_field(NULL, "MONTH(FROM_UNIXTIME(${db_info['table']}.${main_column['column']}))", $this->_field['field_name'] .'_month');
|
| 439 |
$query->add_where("(${db_info['table']}.${main_column['column']} >= $from)");
|
| 440 |
$query->add_where("(${db_info['table']}.${main_column['column']} < $from + INTERVAL 1 YEAR)");
|
| 441 |
$query->add_groupby($this->_field['field_name'] .'_month');
|
| 442 |
return TRUE;
|
| 443 |
}
|
| 444 |
return FALSE; // Unreachable, unless something is wrong...
|
| 445 |
}
|
| 446 |
|
| 447 |
/**
|
| 448 |
* Updates a query for selecting nodes matching this category.
|
| 449 |
*
|
| 450 |
* @param $query
|
| 451 |
* The query object to update.
|
| 452 |
*/
|
| 453 |
function build_results_query(&$query) {
|
| 454 |
$db_info = _cck_facets_db_info($this->_field);
|
| 455 |
$main_column = array_shift($db_info['columns']);
|
| 456 |
// Since the same table might be joined multiple times in the query, we use
|
| 457 |
// the field's name as the table alias to create a unique table reference.
|
| 458 |
$table = $query->add_table($db_info['table'], 'vid', 'n', 'vid', $this->_field['field_name']);
|
| 459 |
if (isset($this->_value['day'])) {
|
| 460 |
$from = sprintf("'%04d-%02d-%02d 00:00:00'", $this->_value['year'], $this->_value['month'], $this->_value['day']);
|
| 461 |
$query->add_where("($table.${main_column['column']} >= UNIX_TIMESTAMP($from))");
|
| 462 |
$query->add_where("($table.${main_column['column']} < UNIX_TIMESTAMP($from + INTERVAL 1 DAY))");
|
| 463 |
}
|
| 464 |
elseif (isset($this->_value['month'])) {
|
| 465 |
$from = sprintf("'%04d-%02d-01 00:00:00'", $this->_value['year'], $this->_value['month']);
|
| 466 |
$query->add_where("($table.${main_column['column']} >= UNIX_TIMESTAMP($from))");
|
| 467 |
$query->add_where("($table.${main_column['column']} < UNIX_TIMESTAMP($from + INTERVAL 1 MONTH))");
|
| 468 |
}
|
| 469 |
elseif (isset($this->_value['year'])) {
|
| 470 |
$from = sprintf("'%04d-01-01 00:00:00'", $this->_value['year']);
|
| 471 |
$query->add_where("($table.${main_column['column']} >= UNIX_TIMESTAMP($from))");
|
| 472 |
$query->add_where("($table.${main_column['column']} < UNIX_TIMESTAMP($from + INTERVAL 1 YEAR))");
|
| 473 |
}
|
| 474 |
}
|
| 475 |
}
|
| 476 |
|
| 477 |
/**
|
| 478 |
* Checks the validity of a date or partial date.
|
| 479 |
*/
|
| 480 |
// TODO: avoid duplication with _date_authored_facet_check_date
|
| 481 |
function _date_facets_check_date($year = NULL, $month = NULL, $day = NULL) {
|
| 482 |
if (!isset($year) || !is_numeric($year) || $year < 1) {
|
| 483 |
return FALSE;
|
| 484 |
}
|
| 485 |
if (isset($month) && (!is_numeric($month) || $month < 1 || $month > 12)) {
|
| 486 |
return FALSE;
|
| 487 |
}
|
| 488 |
if (isset($day) && (!isset($month) || !is_numeric($month) || !is_numeric($day) || !checkdate($month, $day, $year))) {
|
| 489 |
return FALSE;
|
| 490 |
}
|
| 491 |
|
| 492 |
return TRUE;
|
| 493 |
}
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