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<?php
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/**
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* @file
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* Definition of views_plugin_style.
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*/
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/**
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* @defgroup views_style_plugins Views style plugins
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* @{
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* Style plugins control how a view is rendered. For example, they
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* can choose to display a collection of fields, node_view() output,
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* table output, or any kind of crazy output they want.
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*
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* Many style plugins can have an optional 'row' plugin, that displays
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* a single record. Not all style plugins can utilize this, so it is
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* up to the plugin to set this up and call through to the row plugin.
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*
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* @see hook_views_plugins()
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*/
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/**
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* Base class to define a style plugin handler.
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*/
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class views_plugin_style extends views_plugin {
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/**
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* Store all available tokens row rows.
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*/
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var $row_tokens = array();
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/**
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* Contains the row plugin, if it's initialized
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* and the style itself supports it.
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*
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* @var views_plugin_row
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*/
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var $row_plugin;
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/**
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* Initialize a style plugin.
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*
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* @param $view
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* @param $display
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* @param $options
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* The style options might come externally as the style can be sourced
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* from at least two locations. If it's not included, look on the display.
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*/
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function init(&$view, &$display, $options = NULL) {
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$this->view = &$view;
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$this->display = &$display;
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// Overlay incoming options on top of defaults
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$this->unpack_options($this->options, isset($options) ? $options : $display->handler->get_option('style_options'));
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if ($this->uses_row_plugin() && $display->handler->get_option('row_plugin')) {
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$this->row_plugin = $display->handler->get_plugin('row');
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}
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$this->options += array(
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'grouping' => array(),
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);
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$this->definition += array(
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'uses grouping' => TRUE,
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);
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}
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function destroy() {
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parent::destroy();
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if (isset($this->row_plugin)) {
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$this->row_plugin->destroy();
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}
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}
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/**
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* Return TRUE if this style also uses a row plugin.
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*/
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function uses_row_plugin() {
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return !empty($this->definition['uses row plugin']);
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}
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/**
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* Return TRUE if this style also uses a row plugin.
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*/
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function uses_row_class() {
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return !empty($this->definition['uses row class']);
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}
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/**
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* Return TRUE if this style also uses fields.
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*
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* @return bool
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*/
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function uses_fields() {
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// If we use a row plugin, ask the row plugin. Chances are, we don't
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// care, it does.
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$row_uses_fields = FALSE;
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if ($this->uses_row_plugin() && !empty($this->row_plugin)) {
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$row_uses_fields = $this->row_plugin->uses_fields();
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}
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// Otherwise, check the definition or the option.
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return $row_uses_fields || !empty($this->definition['uses fields']) || !empty($this->options['uses_fields']);
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}
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/**
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* Return TRUE if this style uses tokens.
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*
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* Used to ensure we don't fetch tokens when not needed for performance.
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*/
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function uses_tokens() {
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if ($this->uses_row_class()) {
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$class = $this->options['row_class'];
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if (strpos($class, '[') !== FALSE || strpos($class, '!') !== FALSE || strpos($class, '%') !== FALSE) {
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return TRUE;
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}
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}
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}
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/**
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* Return the token replaced row class for the specified row.
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*/
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function get_row_class($row_index) {
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if ($this->uses_row_class()) {
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$class = $this->options['row_class'];
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if ($this->uses_fields() && $this->view->field) {
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$class = strip_tags($this->tokenize_value($class, $row_index));
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}
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$classes = explode(' ', $class);
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foreach ($classes as &$class) {
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$class = drupal_clean_css_identifier($class);
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}
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return implode(' ', $classes);
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}
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}
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/**
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* Take a value and apply token replacement logic to it.
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*/
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function tokenize_value($value, $row_index) {
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if (strpos($value, '[') !== FALSE || strpos($value, '!') !== FALSE || strpos($value, '%') !== FALSE) {
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$fake_item = array(
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'alter_text' => TRUE,
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'text' => $value,
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);
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// Row tokens might be empty, for example for node row style.
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$tokens = isset($this->row_tokens[$row_index]) ? $this->row_tokens[$row_index] : array();
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if (!empty($this->view->build_info['substitutions'])) {
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$tokens += $this->view->build_info['substitutions'];
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}
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if ($tokens) {
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$value = strtr($value, $tokens);
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}
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}
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return $value;
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}
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/**
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* Should the output of the style plugin be rendered even if it's a empty view.
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*/
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function even_empty() {
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return !empty($this->definition['even empty']);
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}
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function option_definition() {
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$options = parent::option_definition();
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$options['grouping'] = array('default' => array());
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if ($this->uses_row_class()) {
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$options['row_class'] = array('default' => '');
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$options['default_row_class'] = array('default' => TRUE, 'bool' => TRUE);
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$options['row_class_special'] = array('default' => TRUE, 'bool' => TRUE);
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}
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$options['uses_fields'] = array('default' => FALSE, 'bool' => TRUE);
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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, $form_state);
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// Only fields-based views can handle grouping. Style plugins can also exclude
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// themselves from being groupable by setting their "use grouping" definiton
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// key to FALSE.
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// @TODO: Document "uses grouping" in docs.php when docs.php is written.
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if ($this->uses_fields() && $this->definition['uses grouping']) {
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$options = array('' => t('- None -'));
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$field_labels = $this->display->handler->get_field_labels(TRUE);
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$options += $field_labels;
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// If there are no fields, we can't group on them.
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if (count($options) > 1) {
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// This is for backward compability, when there was just a single select form.
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if (is_string($this->options['grouping'])) {
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$grouping = $this->options['grouping'];
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$this->options['grouping'] = array();
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$this->options['grouping'][0]['field'] = $grouping;
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}
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if (isset($this->options['group_rendered']) && is_string($this->options['group_rendered'])) {
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$this->options['grouping'][0]['rendered'] = $this->options['group_rendered'];
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unset($this->options['group_rendered']);
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}
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$c = count($this->options['grouping']);
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// Add a form for every grouping, plus one.
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for ($i = 0; $i <= $c; $i++) {
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$grouping = !empty($this->options['grouping'][$i]) ? $this->options['grouping'][$i] : array();
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$grouping += array('field' => '', 'rendered' => TRUE, 'rendered_strip' => FALSE);
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$form['grouping'][$i]['field'] = array(
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'#type' => 'select',
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'#title' => t('Grouping field Nr.@number', array('@number' => $i + 1)),
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'#options' => $options,
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'#default_value' => $grouping['field'],
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'#description' => t('You may optionally specify a field by which to group the records. Leave blank to not group.'),
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);
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$form['grouping'][$i]['rendered'] = array(
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'#type' => 'checkbox',
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'#title' => t('Use rendered output to group rows'),
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'#default_value' => $grouping['rendered'],
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'#description' => t('If enabled the rendered output of the grouping field is used to group the rows.'),
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'#dependency' => array(
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'edit-style-options-grouping-' . $i . '-field' => array_keys($field_labels),
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)
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);
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$form['grouping'][$i]['rendered_strip'] = array(
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'#type' => 'checkbox',
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'#title' => t('Remove tags from rendered output'),
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'#default_value' => $grouping['rendered_strip'],
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'#dependency' => array(
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'edit-style-options-grouping-' . $i . '-field' => array_keys($field_labels),
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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 ($this->uses_row_class()) {
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$form['row_class'] = array(
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'#title' => t('Row class'),
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'#description' => t('The class to provide on each row.'),
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'#type' => 'textfield',
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'#default_value' => $this->options['row_class'],
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);
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if ($this->uses_fields()) {
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$form['row_class']['#description'] .= ' ' . t('You may use field tokens from as per the "Replacement patterns" used in "Rewrite the output of this field" for all fields.');
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}
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$form['default_row_class'] = array(
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'#title' => t('Add views row classes'),
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'#description' => t('Add the default row classes like views-row-1 to the output. You can use this to quickly reduce the amount of markup the view provides by default, at the cost of making it more difficult to apply CSS.'),
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'#type' => 'checkbox',
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'#default_value' => $this->options['default_row_class'],
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);
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$form['row_class_special'] = array(
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'#title' => t('Add striping (odd/even), first/last row classes'),
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'#description' => t('Add css classes to the first and last line, as well as odd/even classes for striping.'),
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'#type' => 'checkbox',
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'#default_value' => $this->options['row_class_special'],
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);
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}
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if (!$this->uses_fields() || !empty($this->options['uses_fields'])) {
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$form['uses_fields'] = array(
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'#type' => 'checkbox',
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'#title' => t('Force using fields'),
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'#description' => t('If neither the row nor the style plugin supports fields, this field allows to enable them, so you can for example use groupby.'),
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'#default_value' => $this->options['uses_fields'],
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);
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}
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}
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function options_validate(&$form, &$form_state) {
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// Don't run validation on style plugins without the grouping setting.
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if (isset($form_state['values']['style_options']['grouping'])) {
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// Don't save grouping if no field is specified.
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foreach ($form_state['values']['style_options']['grouping'] as $index => $grouping) {
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if (empty($grouping['field'])) {
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unset($form_state['values']['style_options']['grouping'][$index]);
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}
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}
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}
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}
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/**
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* Called by the view builder to see if this style handler wants to
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* interfere with the sorts. If so it should build; if it returns
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* any non-TRUE value, normal sorting will NOT be added to the query.
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*/
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function build_sort() { return TRUE; }
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293
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/**
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* Called by the view builder to let the style build a second set of
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* sorts that will come after any other sorts in the view.
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*/
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297
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function build_sort_post() { }
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298
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299
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/**
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300
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* Allow the style to do stuff before each row is rendered.
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*
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* @param $result
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* The full array of results from the query.
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*/
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function pre_render($result) {
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if (!empty($this->row_plugin)) {
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$this->row_plugin->pre_render($result);
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}
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}
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310
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311
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/**
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312
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* Render the display in this style.
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*/
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function render() {
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if ($this->uses_row_plugin() && empty($this->row_plugin)) {
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debug('views_plugin_style_default: Missing row plugin');
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return;
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}
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319
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320
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// Group the rows according to the grouping instructions, if specified.
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321
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$sets = $this->render_grouping(
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$this->view->result,
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$this->options['grouping'],
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TRUE
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);
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return $this->render_grouping_sets($sets);
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}
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329
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/**
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* Render the grouping sets.
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332
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*
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* Plugins may override this method if they wish some other way of handling
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* grouping.
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335
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*
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336
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* @param $sets
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337
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* Array containing the grouping sets to render.
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* @param $level
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339
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* Integer indicating the hierarchical level of the grouping.
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340
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*
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341
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* @return string
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342
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* Rendered output of given grouping sets.
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343
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*/
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344
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function render_grouping_sets($sets, $level = 0) {
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$output = '';
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foreach ($sets as $set) {
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347
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$row = reset($set['rows']);
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348
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// Render as a grouping set.
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349
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if (is_array($row) && isset($row['group'])) {
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$output .= theme(views_theme_functions('views_view_grouping', $this->view, $this->display),
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array(
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'view' => $this->view,
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'grouping' => $this->options['grouping'][$level],
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'grouping_level' => $level,
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'rows' => $set['rows'],
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'title' => $set['group'])
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);
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}
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// Render as a record set.
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else {
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if ($this->uses_row_plugin()) {
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362
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foreach ($set['rows'] as $index => $row) {
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$this->view->row_index = $index;
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$set['rows'][$index] = $this->row_plugin->render($row);
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}
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}
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367
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$output .= theme($this->theme_functions(),
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array(
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'view' => $this->view,
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'options' => $this->options,
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|
'grouping_level' => $level,
|
|
373
|
'rows' => $set['rows'],
|
|
374
|
'title' => $set['group'])
|
|
375
|
);
|
|
376
|
}
|
|
377
|
}
|
|
378
|
unset($this->view->row_index);
|
|
379
|
return $output;
|
|
380
|
}
|
|
381
|
|
|
382
|
/**
|
|
383
|
* Group records as needed for rendering.
|
|
384
|
*
|
|
385
|
* @param $records
|
|
386
|
* An array of records from the view to group.
|
|
387
|
* @param $groupings
|
|
388
|
* An array of grouping instructions on which fields to group. If empty, the
|
|
389
|
* result set will be given a single group with an empty string as a label.
|
|
390
|
* @param $group_rendered
|
|
391
|
* Boolean value whether to use the rendered or the raw field value for
|
|
392
|
* grouping. If set to NULL the return is structured as before
|
|
393
|
* Views 7.x-3.0-rc2. After Views 7.x-3.0 this boolean is only used if
|
|
394
|
* $groupings is an old-style string or if the rendered option is missing
|
|
395
|
* for a grouping instruction.
|
|
396
|
* @return
|
|
397
|
* The grouped record set.
|
|
398
|
* A nested set structure is generated if multiple grouping fields are used.
|
|
399
|
*
|
|
400
|
* @code
|
|
401
|
* array(
|
|
402
|
* 'grouping_field_1:grouping_1' => array(
|
|
403
|
* 'group' => 'grouping_field_1:content_1',
|
|
404
|
* 'rows' => array(
|
|
405
|
* 'grouping_field_2:grouping_a' => array(
|
|
406
|
* 'group' => 'grouping_field_2:content_a',
|
|
407
|
* 'rows' => array(
|
|
408
|
* $row_index_1 => $row_1,
|
|
409
|
* $row_index_2 => $row_2,
|
|
410
|
* // ...
|
|
411
|
* )
|
|
412
|
* ),
|
|
413
|
* ),
|
|
414
|
* ),
|
|
415
|
* 'grouping_field_1:grouping_2' => array(
|
|
416
|
* // ...
|
|
417
|
* ),
|
|
418
|
* )
|
|
419
|
* @endcode
|
|
420
|
*/
|
|
421
|
function render_grouping($records, $groupings = array(), $group_rendered = NULL) {
|
|
422
|
// This is for backward compability, when $groupings was a string containing
|
|
423
|
// the ID of a single field.
|
|
424
|
if (is_string($groupings)) {
|
|
425
|
$rendered = $group_rendered === NULL ? TRUE : $group_rendered;
|
|
426
|
$groupings = array(array('field' => $groupings, 'rendered' => $rendered));
|
|
427
|
}
|
|
428
|
|
|
429
|
// Make sure fields are rendered
|
|
430
|
$this->render_fields($this->view->result);
|
|
431
|
$sets = array();
|
|
432
|
if ($groupings) {
|
|
433
|
foreach ($records as $index => $row) {
|
|
434
|
// Iterate through configured grouping fields to determine the
|
|
435
|
// hierarchically positioned set where the current row belongs to.
|
|
436
|
// While iterating, parent groups, that do not exist yet, are added.
|
|
437
|
$set = &$sets;
|
|
438
|
foreach ($groupings as $info) {
|
|
439
|
$field = $info['field'];
|
|
440
|
$rendered = isset($info['rendered']) ? $info['rendered'] : $group_rendered;
|
|
441
|
$rendered_strip = isset($info['rendered_strip']) ? $info['rendered_strip'] : FALSE;
|
|
442
|
$grouping = '';
|
|
443
|
$group_content = '';
|
|
444
|
// Group on the rendered version of the field, not the raw. That way,
|
|
445
|
// we can control any special formatting of the grouping field through
|
|
446
|
// the admin or theme layer or anywhere else we'd like.
|
|
447
|
if (isset($this->view->field[$field])) {
|
|
448
|
$group_content = $this->get_field($index, $field);
|
|
449
|
if ($this->view->field[$field]->options['label']) {
|
|
450
|
$group_content = $this->view->field[$field]->options['label'] . ': ' . $group_content;
|
|
451
|
}
|
|
452
|
if ($rendered) {
|
|
453
|
$grouping = $group_content;
|
|
454
|
if ($rendered_strip) {
|
|
455
|
$group_content = $grouping = strip_tags(htmlspecialchars_decode($group_content));
|
|
456
|
}
|
|
457
|
}
|
|
458
|
else {
|
|
459
|
$grouping = $this->get_field_value($index, $field);
|
|
460
|
// Not all field handlers return a scalar value,
|
|
461
|
// e.g. views_handler_field_field.
|
|
462
|
if (!is_scalar($grouping)) {
|
|
463
|
$grouping = md5(serialize($grouping));
|
|
464
|
}
|
|
465
|
}
|
|
466
|
}
|
|
467
|
|
|
468
|
// Create the group if it does not exist yet.
|
|
469
|
if (empty($set[$grouping])) {
|
|
470
|
$set[$grouping]['group'] = $group_content;
|
|
471
|
$set[$grouping]['rows'] = array();
|
|
472
|
}
|
|
473
|
|
|
474
|
// Move the set reference into the row set of the group we just determined.
|
|
475
|
$set = &$set[$grouping]['rows'];
|
|
476
|
}
|
|
477
|
// Add the row to the hierarchically positioned row set we just determined.
|
|
478
|
$set[$index] = $row;
|
|
479
|
}
|
|
480
|
}
|
|
481
|
else {
|
|
482
|
// Create a single group with an empty grouping field.
|
|
483
|
$sets[''] = array(
|
|
484
|
'group' => '',
|
|
485
|
'rows' => $records,
|
|
486
|
);
|
|
487
|
}
|
|
488
|
|
|
489
|
// If this parameter isn't explicitely set modify the output to be fully
|
|
490
|
// backward compatible to code before Views 7.x-3.0-rc2.
|
|
491
|
// @TODO Remove this as soon as possible e.g. October 2020
|
|
492
|
if ($group_rendered === NULL) {
|
|
493
|
$old_style_sets = array();
|
|
494
|
foreach ($sets as $group) {
|
|
495
|
$old_style_sets[$group['group']] = $group['rows'];
|
|
496
|
}
|
|
497
|
$sets = $old_style_sets;
|
|
498
|
}
|
|
499
|
|
|
500
|
return $sets;
|
|
501
|
}
|
|
502
|
|
|
503
|
/**
|
|
504
|
* Render all of the fields for a given style and store them on the object.
|
|
505
|
*
|
|
506
|
* @param $result
|
|
507
|
* The result array from $view->result
|
|
508
|
*/
|
|
509
|
function render_fields($result) {
|
|
510
|
if (!$this->uses_fields()) {
|
|
511
|
return;
|
|
512
|
}
|
|
513
|
|
|
514
|
if (!isset($this->rendered_fields)) {
|
|
515
|
$this->rendered_fields = array();
|
|
516
|
$this->view->row_index = 0;
|
|
517
|
$keys = array_keys($this->view->field);
|
|
518
|
|
|
519
|
// If all fields have a field::access FALSE there might be no fields, so
|
|
520
|
// there is no reason to execute this code.
|
|
521
|
if (!empty($keys)) {
|
|
522
|
foreach ($result as $count => $row) {
|
|
523
|
$this->view->row_index = $count;
|
|
524
|
foreach ($keys as $id) {
|
|
525
|
$this->rendered_fields[$count][$id] = $this->view->field[$id]->theme($row);
|
|
526
|
}
|
|
527
|
|
|
528
|
$this->row_tokens[$count] = $this->view->field[$id]->get_render_tokens(array());
|
|
529
|
}
|
|
530
|
}
|
|
531
|
unset($this->view->row_index);
|
|
532
|
}
|
|
533
|
|
|
534
|
return $this->rendered_fields;
|
|
535
|
}
|
|
536
|
|
|
537
|
/**
|
|
538
|
* Get a rendered field.
|
|
539
|
*
|
|
540
|
* @param $index
|
|
541
|
* The index count of the row.
|
|
542
|
* @param $field
|
|
543
|
* The id of the field.
|
|
544
|
*/
|
|
545
|
function get_field($index, $field) {
|
|
546
|
if (!isset($this->rendered_fields)) {
|
|
547
|
$this->render_fields($this->view->result);
|
|
548
|
}
|
|
549
|
|
|
550
|
if (isset($this->rendered_fields[$index][$field])) {
|
|
551
|
return $this->rendered_fields[$index][$field];
|
|
552
|
}
|
|
553
|
}
|
|
554
|
|
|
555
|
/**
|
|
556
|
* Get the raw field value.
|
|
557
|
*
|
|
558
|
* @param $index
|
|
559
|
* The index count of the row.
|
|
560
|
* @param $field
|
|
561
|
* The id of the field.
|
|
562
|
*/
|
|
563
|
function get_field_value($index, $field) {
|
|
564
|
$this->view->row_index = $index;
|
|
565
|
$value = $this->view->field[$field]->get_value($this->view->result[$index]);
|
|
566
|
unset($this->view->row_index);
|
|
567
|
return $value;
|
|
568
|
}
|
|
569
|
|
|
570
|
function validate() {
|
|
571
|
$errors = parent::validate();
|
|
572
|
|
|
573
|
if ($this->uses_row_plugin()) {
|
|
574
|
$plugin = $this->display->handler->get_plugin('row');
|
|
575
|
if (empty($plugin)) {
|
|
576
|
$errors[] = t('Style @style requires a row style but the row plugin is invalid.', array('@style' => $this->definition['title']));
|
|
577
|
}
|
|
578
|
else {
|
|
579
|
$result = $plugin->validate();
|
|
580
|
if (!empty($result) && is_array($result)) {
|
|
581
|
$errors = array_merge($errors, $result);
|
|
582
|
}
|
|
583
|
}
|
|
584
|
}
|
|
585
|
return $errors;
|
|
586
|
}
|
|
587
|
|
|
588
|
function query() {
|
|
589
|
parent::query();
|
|
590
|
if (isset($this->row_plugin)) {
|
|
591
|
$this->row_plugin->query();
|
|
592
|
}
|
|
593
|
}
|
|
594
|
}
|
|
595
|
|
|
596
|
/**
|
|
597
|
* @}
|
|
598
|
*/
|
