[177a560] | 1 | <?php |
---|
| 2 | /** |
---|
| 3 | * @file |
---|
| 4 | * Identification for fields the Date handlers can use. |
---|
| 5 | */ |
---|
| 6 | |
---|
| 7 | /** |
---|
| 8 | * Identify all potential date/timestamp fields. |
---|
| 9 | * |
---|
| 10 | * @return |
---|
| 11 | * array with fieldname, type, and table. |
---|
| 12 | * @see date_api_date_api_fields() which implements |
---|
| 13 | * the hook_date_api_fields() for the core date fields. |
---|
| 14 | */ |
---|
| 15 | function _date_api_fields($base = 'node') { |
---|
| 16 | // Make sure $base is never empty. |
---|
| 17 | if (empty($base)) { |
---|
| 18 | $base = 'node'; |
---|
| 19 | } |
---|
| 20 | $cid = 'date_api_fields_'. $base; |
---|
| 21 | cache_clear_all($cid, 'cache_views'); |
---|
| 22 | |
---|
| 23 | $all_fields = date_api_views_fetch_fields($base, 'field'); |
---|
| 24 | $fields = array(); |
---|
| 25 | foreach ((array) $all_fields as $name => $val) { |
---|
| 26 | $fromto = array(); |
---|
| 27 | $tmp = explode('.', $name); |
---|
| 28 | $field_name = $tmp[1]; |
---|
| 29 | $table_name = $tmp[0]; |
---|
| 30 | $alias = str_replace('.', '_', $name); |
---|
| 31 | |
---|
| 32 | if (!$handler = views_get_handler($table_name, $field_name, 'field')) { |
---|
| 33 | continue; |
---|
| 34 | } |
---|
| 35 | |
---|
| 36 | $handler_name = $handler->definition['handler']; |
---|
| 37 | $type = ''; |
---|
| 38 | |
---|
| 39 | // For cck fields, get the date type. |
---|
| 40 | $custom = array(); |
---|
| 41 | if (isset($handler->content_field)) { |
---|
| 42 | if ($handler->content_field['type'] == 'date') { |
---|
| 43 | $type = 'cck_string'; |
---|
| 44 | } |
---|
| 45 | elseif ($handler->content_field['type'] == 'datestamp') { |
---|
| 46 | $type = 'cck_timestamp'; |
---|
| 47 | } |
---|
| 48 | elseif ($handler->content_field['type'] == 'datetime') { |
---|
| 49 | $type = 'cck_datetime'; |
---|
| 50 | } |
---|
| 51 | } |
---|
| 52 | |
---|
| 53 | // Allow custom modules to provide date fields. |
---|
| 54 | // The is_a() function makes this work for any handler |
---|
| 55 | // that was derived from 'views_handler_field_date'. |
---|
| 56 | // Unfortunately is_a() is deprecated in PHP 5.2, so we need |
---|
| 57 | // a more convoluted test. |
---|
| 58 | elseif ((version_compare(PHP_VERSION, '5.2', '<') && is_a($handler, 'views_handler_field_date')) || ($handler instanceof views_handler_field_date)) { |
---|
| 59 | foreach (module_implements('date_api_fields') as $module) { |
---|
| 60 | $function = $module .'_date_api_fields'; |
---|
| 61 | if ($custom = $function("$table_name.$field_name")) { |
---|
| 62 | $type = 'custom'; |
---|
| 63 | break; |
---|
| 64 | } |
---|
| 65 | } |
---|
| 66 | } |
---|
| 67 | |
---|
| 68 | // Don't do anything if this is not a date field we can handle. |
---|
| 69 | if (!empty($type)) { |
---|
| 70 | |
---|
| 71 | // Handling for simple timestamp fields |
---|
| 72 | $fromto = array($alias, $alias); |
---|
| 73 | $tz_handling = 'site'; |
---|
| 74 | $related_fields = array(); |
---|
| 75 | $timezone_field = ''; |
---|
| 76 | $offset_field = ''; |
---|
| 77 | $rrule_field = ''; |
---|
| 78 | $delta_field = ''; |
---|
| 79 | $granularity = array('year', 'month', 'day', 'hour', 'minute'); |
---|
| 80 | |
---|
| 81 | // Handling for content field dates |
---|
| 82 | if (isset($handler->content_field['tz_handling'])) { |
---|
| 83 | $tz_handling = $handler->content_field['tz_handling']; |
---|
| 84 | $db_info = content_database_info($handler->content_field); |
---|
| 85 | if ($tz_handling == 'date') { |
---|
| 86 | $offset_field = $table_name .'.'. $db_info['columns']['offset']['column']; |
---|
| 87 | } |
---|
| 88 | $related_fields = array( |
---|
| 89 | $table_name .'.'. $field_name |
---|
| 90 | ); |
---|
| 91 | if (isset($db_info['columns']['value2']['column'])) { |
---|
| 92 | $related_fields = array_merge($related_fields, array($table_name .'.'. $db_info['columns']['value2']['column'])); |
---|
| 93 | } |
---|
| 94 | if (isset($db_info['columns']['timezone']['column'])) { |
---|
| 95 | $related_fields = array_merge($related_fields, array($table_name .'.'. $db_info['columns']['timezone']['column'])); |
---|
| 96 | $timezone_field = $table_name .'.'. $db_info['columns']['timezone']['column']; |
---|
| 97 | } |
---|
| 98 | if (isset($db_info['columns']['rrule']['column'])) { |
---|
| 99 | $related_fields = array_merge($related_fields, array($table_name .'.'. $db_info['columns']['rrule']['column'])); |
---|
| 100 | $rrule_field = $table_name .'.'. $db_info['columns']['rrule']['column']; |
---|
| 101 | } |
---|
| 102 | } |
---|
| 103 | // Get the delta value into the query. |
---|
| 104 | if (!empty($handler->content_field['multiple'])) { |
---|
| 105 | array_push($related_fields, "$table_name.delta"); |
---|
| 106 | $delta_field = $table_name .'_delta'; |
---|
| 107 | } |
---|
| 108 | |
---|
| 109 | // Handling for cck fromto dates |
---|
| 110 | if (isset($handler->content_field)) { |
---|
| 111 | switch ($handler->content_field['type']) { |
---|
| 112 | case 'date': |
---|
| 113 | case 'datetime': |
---|
| 114 | case 'datestamp': |
---|
| 115 | $db_info = content_database_info($handler->content_field); |
---|
| 116 | $fromto = array( |
---|
| 117 | $table_name .'_'. $db_info['columns']['value']['column'], |
---|
| 118 | $table_name .'_'. (!empty($handler->content_field['todate']) ? $db_info['columns']['value2']['column'] : $db_info['columns']['value']['column']), |
---|
| 119 | ); |
---|
| 120 | break; |
---|
| 121 | } |
---|
| 122 | $granularity = !empty($handler->content_field['granularity']) ? $handler->content_field['granularity'] : array('year', 'month', 'day', 'hour', 'minute'); |
---|
| 123 | } |
---|
| 124 | |
---|
| 125 | // CCK fields append a column name to the field, others do not |
---|
| 126 | // need a real field_name with no column name appended for cck date formatters |
---|
| 127 | switch ($type) { |
---|
| 128 | case 'cck_string': |
---|
| 129 | $sql_type = DATE_ISO; |
---|
| 130 | break; |
---|
| 131 | case 'cck_datetime': |
---|
| 132 | $sql_type = DATE_DATETIME; |
---|
| 133 | break; |
---|
| 134 | default: |
---|
| 135 | $sql_type = DATE_UNIX; |
---|
| 136 | break; |
---|
| 137 | } |
---|
| 138 | $fields['name'][$name] = array( |
---|
| 139 | 'type' => $type, |
---|
| 140 | 'sql_type' => $sql_type, |
---|
| 141 | 'label' => $val['group'] .': '. $val['title'], |
---|
| 142 | 'granularity' => $granularity, |
---|
| 143 | 'fullname' => $name, |
---|
| 144 | 'table_name' => $table_name, |
---|
| 145 | 'field_name' => $field_name, |
---|
| 146 | 'query_name' => $alias, |
---|
| 147 | 'fromto' => $fromto, |
---|
| 148 | 'tz_handling' => $tz_handling, |
---|
| 149 | 'offset_field' => $offset_field, |
---|
| 150 | 'timezone_field' => $timezone_field, |
---|
| 151 | 'rrule_field' => $rrule_field, |
---|
| 152 | 'related_fields' => $related_fields, |
---|
| 153 | 'delta_field' => $delta_field, |
---|
| 154 | ); |
---|
| 155 | |
---|
| 156 | // Allow the custom fields to over-write values. |
---|
| 157 | if (!empty($custom)) { |
---|
| 158 | foreach ($custom as $key => $val) { |
---|
| 159 | $fields['name'][$name][$key] = $val; |
---|
| 160 | } |
---|
| 161 | } |
---|
| 162 | if (isset($handler->content_field)) { |
---|
| 163 | if (drupal_substr($field_name, -1) == '2') { |
---|
| 164 | $len = (drupal_strlen($field_name) - 7); |
---|
| 165 | } |
---|
| 166 | else { |
---|
| 167 | $len = (drupal_strlen($field_name) - 6); |
---|
| 168 | } |
---|
| 169 | $fields['name'][$name]['real_field_name'] = drupal_substr($field_name, 0, $len); |
---|
| 170 | } |
---|
| 171 | else { |
---|
| 172 | $fields['name'][$name]['real_field_name'] = $field_name; |
---|
| 173 | } |
---|
| 174 | $fields['alias'][$alias] = $fields['name'][$name]; |
---|
| 175 | } |
---|
| 176 | } |
---|
| 177 | cache_set($cid, $fields, 'cache_views'); |
---|
| 178 | return $fields; |
---|
| 179 | } |
---|