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<?php
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/**
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* @file
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* Definition of views_handler_sort_date.
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*/
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/**
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* Basic sort handler for dates.
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*
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* This handler enables granularity, which is the ability to make dates
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* equivalent based upon nearness.
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*
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* @ingroup views_sort_handlers
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*/
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class views_handler_sort_date extends views_handler_sort {
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function option_definition() {
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$options = parent::option_definition();
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$options['granularity'] = array('default' => 'second');
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return $options;
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}
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function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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$form['granularity'] = array(
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'#type' => 'radios',
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'#title' => t('Granularity'),
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'#options' => array(
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'second' => t('Second'),
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'minute' => t('Minute'),
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'hour' => t('Hour'),
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'day' => t('Day'),
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'month' => t('Month'),
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'year' => t('Year'),
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),
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'#description' => t('The granularity is the smallest unit to use when determining whether two dates are the same; for example, if the granularity is "Year" then all dates in 1999, regardless of when they fall in 1999, will be considered the same date.'),
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'#default_value' => $this->options['granularity'],
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);
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}
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/**
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* Called to add the sort to a query.
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*/
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function query() {
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$this->ensure_my_table();
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switch ($this->options['granularity']) {
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case 'second':
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default:
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$this->query->add_orderby($this->table_alias, $this->real_field, $this->options['order']);
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return;
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case 'minute':
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$formula = views_date_sql_format('YmdHi', "$this->table_alias.$this->real_field");
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break;
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case 'hour':
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$formula = views_date_sql_format('YmdH', "$this->table_alias.$this->real_field");
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break;
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case 'day':
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$formula = views_date_sql_format('Ymd', "$this->table_alias.$this->real_field");
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break;
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case 'month':
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$formula = views_date_sql_format('Ym', "$this->table_alias.$this->real_field");
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break;
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case 'year':
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$formula = views_date_sql_format('Y', "$this->table_alias.$this->real_field");
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break;
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}
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// Add the field.
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$this->query->add_orderby(NULL, $formula, $this->options['order'], $this->table_alias . '_' . $this->field . '_' . $this->options['granularity']);
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}
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}
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