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<?php
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/**
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* @file
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* Definition of views_handler_filter_combine.
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*/
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/**
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* Filter handler which allows to search on multiple fields.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_filter_combine extends views_handler_filter_string {
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/**
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* @var views_plugin_query_default
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*/
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public $query;
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function option_definition() {
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$options = parent::option_definition();
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$options['fields'] = array('default' => array());
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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, $form_state);
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$this->view->init_style();
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// Allow to choose all fields as possible.
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if ($this->view->style_plugin->uses_fields()) {
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$options = array();
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foreach ($this->view->display_handler->get_handlers('field') as $name => $field) {
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$options[$name] = $field->ui_name(TRUE);
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}
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if ($options) {
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$form['fields'] = array(
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'#type' => 'select',
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'#title' => t('Choose fields to combine for filtering'),
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'#description' => t("This filter doesn't work for very special field handlers."),
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'#multiple' => TRUE,
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'#options' => $options,
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'#default_value' => $this->options['fields'],
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);
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}
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else {
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form_set_error('', t('You have to add some fields to be able to use this filter.'));
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}
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}
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}
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function query() {
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$this->view->_build('field');
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$fields = array();
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// Only add the fields if they have a proper field and table alias.
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foreach ($this->options['fields'] as $id) {
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// Field access checks may have removed this handler.
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if (!isset($this->view->field[$id])) {
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continue;
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}
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$field = $this->view->field[$id];
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// Always add the table of the selected fields to be sure a table alias
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// exists.
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$field->ensure_my_table();
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if (!empty($field->field_alias) && !empty($field->field_alias)) {
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$fields[] = "$field->table_alias.$field->real_field";
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}
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}
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if ($fields) {
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$count = count($fields);
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$separated_fields = array();
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foreach ($fields as $key => $field) {
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$separated_fields[] = $field;
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if ($key < $count - 1) {
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$separated_fields[] = "' '";
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}
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}
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$expression = implode(', ', $separated_fields);
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$expression = "CONCAT_WS(' ', $expression)";
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$info = $this->operators();
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if (!empty($info[$this->operator]['method'])) {
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$this->{$info[$this->operator]['method']}($expression);
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}
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}
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}
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// By default things like op_equal uses add_where, that doesn't support
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// complex expressions, so override all operators.
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function op_equal($field) {
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$placeholder = $this->placeholder();
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$operator = $this->operator();
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$this->query->add_where_expression($this->options['group'], "$field $operator $placeholder", array($placeholder => $this->value));
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}
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function op_contains($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field LIKE $placeholder", array($placeholder => '%' . db_like($this->value) . '%'));
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}
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function op_word($field) {
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$where = $this->operator == 'word' ? db_or() : db_and();
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// Don't filter on empty strings.
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if (empty($this->value)) {
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return;
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}
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preg_match_all('/ (-?)("[^"]+"|[^" ]+)/i', ' ' . $this->value, $matches, PREG_SET_ORDER);
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foreach ($matches as $match) {
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$phrase = FALSE;
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// Strip off phrase quotes.
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if ($match[2]{0} == '"') {
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$match[2] = substr($match[2], 1, -1);
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$phrase = TRUE;
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}
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$words = trim($match[2], ',?!();:-');
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$words = $phrase ? array($words) : preg_split('/ /', $words, -1, PREG_SPLIT_NO_EMPTY);
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$placeholder = $this->placeholder();
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foreach ($words as $word) {
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$where->where($field . " LIKE $placeholder", array($placeholder => '%' . db_like(trim($word, " ,!?")) . '%'));
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}
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}
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if (!$where) {
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return;
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}
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// Previously this was a call_user_func_array() but that's unnecessary
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// as views will unpack an array that is a single arg.
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$this->query->add_where($this->options['group'], $where);
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}
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function op_starts($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field LIKE $placeholder", array($placeholder => db_like($this->value) . '%'));
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}
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function op_not_starts($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field NOT LIKE $placeholder", array($placeholder => db_like($this->value) . '%'));
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}
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function op_ends($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field LIKE $placeholder", array($placeholder => '%' . db_like($this->value)));
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}
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function op_not_ends($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field NOT LIKE $placeholder", array($placeholder => '%' . db_like($this->value)));
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}
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function op_not($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field NOT LIKE $placeholder", array($placeholder => '%' . db_like($this->value) . '%'));
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}
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function op_regex($field) {
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$placeholder = $this->placeholder();
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$this->query->add_where_expression($this->options['group'], "$field RLIKE $placeholder", array($placeholder => $this->value));
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}
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function op_empty($field) {
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if ($this->operator == 'empty') {
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$operator = "IS NULL";
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}
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else {
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$operator = "IS NOT NULL";
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}
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$this->query->add_where_expression($this->options['group'], "$field $operator");
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}
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}
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