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1 <?php
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2
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3 /**
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4 * Plugin for "apachesolr_geo" query types.
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5 */
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6 class solrsearchFacetapiGeo extends FacetapiQueryType implements FacetapiQueryTypeInterface {
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7 // Center point is Denver.
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8 public $center_point = '39.7391667,-104.9841667';
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9 public $facet_options = '0.5,0.1,0.01';
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10 public $default_radius = 100;
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11
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12 /**
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13 * Returns the query type associated with the plugin.
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14 *
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15 * @return string
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16 * The query type.
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17 */
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18 static public function getType() {
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19 return 'geo';
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20 }
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21
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22 /**
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23 * Adds the filter to the query object.
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24 *
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25 * @param DrupalSolrQueryInterface $query
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26 * An object containing the query in the backend's native API.
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27 */
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28 public function execute($query) {
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29 // Retrieve settings of the facet.
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30 // We should be able to get all constants as facet options.
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31 $settings = $this->adapter->getFacet($this->facet)->getSettings();
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32
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33 $facet_distances = explode(',', $this->facet_options);
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34
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35 $active_items = $this->adapter->getActiveItems($this->facet);
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36
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37 if (empty($active_items)) {
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38 $distance = $this->default_radius;
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39 }
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40 else {
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41 $active_item = array_pop($active_items);
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42 $distance = substr($active_item['value'], 1);
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43 // Add current selected distance to have possibility to unselect it.
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44 $facet_distances[] = 1;
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45 }
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46
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47 // Search center point.
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48 $query->addParam('pt', $this->center_point);
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49
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50 // Set location field name.
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51 $query->addParam('sfield', $this->facet['field']);
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52 $query->addParam('fq', '{!geofilt sfield=' . $this->facet['field'] . '}');
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53
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54 // Set search radius.
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55 $query->addParam('d', $distance);
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56
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57 // Set facets.
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58 foreach ($facet_distances as $facet_option) {
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59 $facet_distance = $distance * $facet_option;
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60 $query->addParam('facet.query', '{!geofilt d=' . $facet_distance . ' key=d' . $facet_distance . '}');
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61 }
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62 }
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63
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64 /**
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65 * Initializes the facet's build array.
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66 *
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67 * @return array
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68 * The initialized render array.
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69 */
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70 public function build() {
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71 $build = array();
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72 if ($response = apachesolr_static_response_cache($this->adapter->getSearcher())) {
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73 if (isset($response->facet_counts->facet_queries)) {
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74 foreach ($response->facet_counts->facet_queries as $value => $count) {
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75 // Skip zero results values.
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76 if ($count > 0) {
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77 $build[$value] = array('#count' => $count);
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78 }
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79 }
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80 }
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81 }
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82 return $build;
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83 }
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84 }
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