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<?php
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/**
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* @file
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* Definition of views_handler_argument_search.
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*/
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/**
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* Argument that accepts query keys for search.
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*
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* @ingroup views_argument_handlers
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*/
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class views_handler_argument_search extends views_handler_argument {
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/**
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* Take sure that parseSearchExpression is runned and everything is set up for it.
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*
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* @param $input
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* The search phrase which was input by the user.
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*/
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function query_parse_search_expression($input) {
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if (!isset($this->search_query)) {
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$this->search_query = db_select('search_index', 'i', array('target' => 'slave'))->extend('viewsSearchQuery');
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$this->search_query->searchExpression($input, $this->view->base_table);
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$this->search_query->publicParseSearchExpression();
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}
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}
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/**
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* Add this argument to the query.
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*/
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function query($group_by = FALSE) {
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$required = FALSE;
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$this->query_parse_search_expression($this->argument);
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if (!isset($this->search_query)) {
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$required = TRUE;
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}
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else {
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$words = $this->search_query->words();
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if (empty($words)) {
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$required = TRUE;
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}
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}
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if ($required) {
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if ($this->operator == 'required') {
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$this->query->add_where(0, 'FALSE');
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}
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}
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else {
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$search_index = $this->ensure_my_table();
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$search_condition = db_and();
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// Create a new join to relate the 'search_total' table to our current 'search_index' table.
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$join = new views_join;
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$join->construct('search_total', $search_index, 'word', 'word');
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$search_total = $this->query->add_relationship('search_total', $join, $search_index);
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$this->search_score = $this->query->add_field('', "SUM($search_index.score * $search_total.count)", 'score', array('aggregate' => TRUE));
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if (empty($this->query->relationships[$this->relationship])) {
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$base_table = $this->query->base_table;
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}
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else {
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$base_table = $this->query->relationships[$this->relationship]['base'];
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}
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$search_condition->condition("$search_index.type", $base_table);
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if (!$this->search_query->simple()) {
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$search_dataset = $this->query->add_table('search_dataset');
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$conditions = $this->search_query->conditions();
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$condition_conditions =& $conditions->conditions();
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foreach ($condition_conditions as $key => &$condition) {
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// Take sure we just look at real conditions.
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if (is_numeric($key)) {
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// Replace the conditions with the table alias of views.
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$this->search_query->condition_replace_string('d.', "$search_dataset.", $condition);
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}
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}
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$search_conditions =& $search_condition->conditions();
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$search_conditions = array_merge($search_conditions, $condition_conditions);
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}
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else {
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// Stores each condition, so and/or on the filter level will still work.
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$or = db_or();
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foreach ($words as $word) {
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$or->condition("$search_index.word", $word);
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}
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$search_condition->condition($or);
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}
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$this->query->add_where(0, $search_condition);
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$this->query->add_groupby("$search_index.sid");
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$matches = $this->search_query->matches();
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$placeholder = $this->placeholder();
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$this->query->add_having_expression(0, "COUNT(*) >= $placeholder", array($placeholder => $matches));
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}
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}
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}
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