Multiple word search

        // The breadcrumb should go in the display class
        $queryurl = "islandora/solr/search/" . replaceSlashes($this->solrQuery);
        $breadcrumb_fq = $islandora_fq;
        if (strcmp($islandora_fq, "-")) {
            foreach(csv_explode(IslandoraSolrQueryProcessor::$facetSeparator, $islandora_fq, '"', true) as $facet) {
                $field = substr($facet, 0, strpos($facet, ":"));
                if ($field !== "rels.hasModel") {
                    $value = restoreSlashes(trim(substr($facet, strpos($facet, ":") + 1), '"'));
                    $options = array('html' => true);
                    $options['attributes']['title'] = $facet;
                    $crumblink = $queryurl . "/" . $breadcrumb_fq . (empty($this->solrDefType) ? '' : '/' . $this->solrDefType);
                    $cut_fq = $this->delete_filter($islandora_fq, $facet);
                    $cutlink = $queryurl . "/" . $cut_fq . (empty($this->solrDefType) ? '' : '/' . $this->solrDefType);
                    if (!strncmp("-", $facet, 1)) {
                        $options['attributes']['class'] = "strikethrough";
                    }
                    $breadcrumb[] = l($value, $crumblink, $options) . " <span class='islandora_solr_search_breadcrumb_super'>(" . l("x", $cutlink, array('attributes' => array('title' => "Remove " . $facet))) . ")</span>";
                    $breadcrumb_fq = $this->delete_filter($breadcrumb_fq, $facet);
                }
            }
        }
        if (!empty($this->solrQuery) && strcmp($this->solrQuery, ' ')) {
            $cutlink = "islandora/solr/search/ /" . $islandora_fq . "/dismax";
            $queryval = $this->solrQuery;
            $tokens = explode(" ", $queryval);
            foreach($tokens as $token) {
                preg_match("/^.*:/", $token, $matches);
                $queryval = str_replace($matches[0], "", $queryval);
            }
            if ($queryval != '%252F') {
                $elencoparole = preg_replace('~\s+~', ' ', trim($queryval));
                $searchwords = explode(" ", $elencoparole);
                $elencoparole = "<strong>" . $searchwords[0] . "</strong>";
                $nparole = count($searchwords);
                if ($nparole > 2) {
                    for ($i = 1; $i < ($nparole - 1); $i++) {
                        $elencoparole.= " " . $searchwords[$nparole - 1] . " " . "<strong>" . $searchwords[$i] . "</strong>";
                    }
                }
                $elencoparole.= " <span class='islandora_solr_search_breadcrumb_super'>°</span>";
                $breadcrumb[] = $elencoparole;
                //        $breadcrumb[] = l($queryval, $queryurl . "/-", array('attributes' => array('title' => $this->solrQuery))) .
                //            " <span class='islandora_solr_search_breadcrumb_super'>(" . l("x", $cutlink, array('attributes' => array('title' => "Remove " . $facet))) . ")</span>";
 
            }
        }
        //    $breadcrumb[] = l(t('Home'), NULL);
        $breadcrumb[] = "Search";
        if (!empty($breadcrumb)) $breadcrumb = array_reverse($breadcrumb);
        drupal_set_breadcrumb($breadcrumb);
        $this->solrFilters = $islandora_fq;
        //        if (strpos($fq, "rels.hasModel%253AbookCModel") === FALSE) {
        //          if ($fq) {
        //            $fq .= $this->facetSeparator;
        //          }
        //          $fq = "rels.hasModel%253AbookCModel";
        //        }
        // At this point let's invoke a hook for third-party modules to mess about
        // with the query parameters if they need to.  Third party modules may alter
        // this object's query parameters if they wish.
        // module_invoke_all("islandora_solr_search_query_processor", &$this);
        return;
    }

        $bcksolrQuery = $this->solrQuery;
        $bcksolrQuery = preg_replace('~\s+~', ' ', trim($bcksolrQuery));
        $termini = explode(":", $bcksolrQuery);
        $parole = explode(" ", trim($termini[1]));
        $numeroparole = count($parole);
        $bcksolrQuery = "";
        $bcksolrQuery = "(" . $termini[0] . ":" . $parole[0] . ")";
        if ($numeroparole > 1) {
            for ($i = 1; $i < $numeroparole; $i++) {
                $bcksolrQuery = $bcksolrQuery . $termini[2] . "(" . $termini[0] . ":" . $parole[$i] . ")";
            }
        }

    /**
     * Build solr search form
     * @param type $repeat
     * @param type $pathToSearchTerms
     * @param type $query
     * @return string
     */
    function build_solr_search_form($repeat = NULL, $pathToSearchTerms = NULL, $query = NULL)
    {
        $types = array();
        $terms = trim(variable_get('islandora_solr_searchterms', 'dc.title ~ Title,dc.subject ~ Subject'));
        $termsArray = preg_split('/[\n]/', $terms);
        foreach($termsArray as $term) {
            $vals = split('~', $term);
            if (!$vals[1]) {
                $vals[1] = $vals[0];
            }
            $types[trim($vals[0]) ] = trim($vals[1]);
        }
        $queryArray = NULL;
        if (isset($query)) {
            $termini = explode(":", $query);
            $andOrs[] = trim($termini[2]);
            $queryArray = preg_split('/( OR | AND )/', $query, 0, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
            //      foreach ($queryArray as $key => $val) {
            //        if ($val === ' OR ' || $val === ' AND ') {
            //          $andOrs[] = trim($val); // that is, just 'OR' or 'AND'
            //          unset($queryArray[$key]); //remove that from the array
            //        }
            //      }
            $queryArray = array_values($queryArray);
        }
        $andOrArray = array('AND' => 'and', 'OR' => 'or',);
        $form = array();
        if (!isset($repeat)) {
            $repeat = variable_get('islandora_solr_search_block_repeat', '3');
        }
        $var0 = explode(':', $queryArray[0]);
        $form['search_type']['type1'] = array('#title' => 'Field', '#type' => 'select', '#options' => $types, '#default_value' => trim($var0[0]));
        $form['fedora_terms1'] = array('#size' => '24', '#type' => 'textfield', '#title' => 'One or more words', '#default_value' => (count($var0) >= 2 ? restoreSlashes(trim($var0[1], '()')) : ''),);
        //    if ($repeat > 1 && $repeat < 9) { //don't want less then 2 or more then 9
        if ($repeat > 0 && $repeat < 9) { //don't want less then 2 or more then 9
            //      for ($i = 2; $i < $repeat + 1; $i++) {
            for ($i = 1; $i < $repeat + 1; $i++) {
                $t = $i - 1;
                //        $j = $i - 2;
                $j = $i - 1;
                $andorj = (isset($andOrs[$j]) ? $andOrs[$j] : 'AND');
                $field_and_term = explode(':', $queryArray[$t]);
                $form["andor$t"] = array('#title' => 'Words boolean', '#type' => 'select', '#default_value' => $andorj, '#options' => $andOrArray);
                /*
                $form['search_type']["type$i"] = array(
                '#title' => '',
                '#type' => 'select',
                '#options' => $types,
                '#default_value' => trim($field_and_term[0])
                );
                $form["fedora_terms$i"] = array(
                '#size' => '24',
                '#type' => 'textfield',
                '#title' => '',
                '#default_value' => (count($field_and_term) >= 2 ? trim($field_and_term[1], '()') : ''),
                );
                */
            }
        }
        $form['submit'] = array('#type' => 'submit', '#value' => t('Search'));
        return $form;
    }
 
    ...
 
    /**
     * Theme solr search form
     * @param type $form
     * @return type
     */
    function theme_solr_search_form($form)
    {
        if (!isset($repeat)) {
            $repeat = variable_get('islandora_solr_search_block_repeat', '3');
        }
        $output = drupal_render($form['search_type']['type1']);
        $output.= drupal_render($form['fedora_terms1']);
        // $output.= drupal_render($form['andor1']) . drupal_render($form['search_type']['type2']);
        $output.= drupal_render($form['andor1']);
        /*
        $output .= drupal_render($form['fedora_terms2']);
        if ($repeat > 2 && $repeat < 9) {
        for ($i = 3; $i < $repeat + 1; $i++) {
        $t = $i - 1;
        $output .= drupal_render($form["andor$t"]) . drupal_render($form['search_type']["type$i"]);
        $output .= drupal_render($form["fedora_terms$i"]);
        }
        }
 
        $output .= drupal_render($form['submit']);
        */
        $output.= drupal_render($form);
        return $output;
    }
}

    // append AND or OR at the end of string
    $searchString.= ":" . trim($form_state['values']["andor0"]);
    //