Introduces showMore parameter

- controls how many facet values should be displayed in list

config/vufind/EDS.ini

@@ -102,6 +102,12 @@ SEARCHMODE = "Search Mode"
 
 ; Facet display settings
 [Results_Settings]
+; By default, the side facets will only show 6 facets and then the "show more"
+; button. This can get configured with the showMore settings.
+; You can use the * to set a new default setting.
+showMore[*] = 6
+; Or you can set a facet specific value by using the facet name as index.
+;showMore['SourceType'] = 10
 ; Rows and columns for table used by top facets
 top_rows = 2
 top_cols = 3

config/vufind/Primo.ini

@@ -96,6 +96,12 @@ domain  = Source
 
 ; Facet display settings
 [Results_Settings]
+; By default, the side facets will only show 6 facets and then the "show more"
+; button. This can get configured with the showMore settings.
+; You can use the * to set a new default setting.
+showMore[*] = 6
+; Or you can set a facet specific value by using the facet name as index.
+;showMore['rtype'] = 10
 ; Rows and columns for table used by top facets
 top_rows = 2
 top_cols = 3

config/vufind/Summon.ini

@@ -143,6 +143,12 @@ SubjectTerms = "Suggested Topics"
 
 ; Facet display settings
 [Results_Settings]
+; By default, the side facets will only show 6 facets and then the "show more"
+; button. This can get configured with the showMore settings.
+; You can use the * to set a new default setting.
+showMore[*] = 6
+; Or you can set a facet specific value by using the facet name as index.
+;showMore['ContentType'] = 10
 ; Rows and columns for table used by top facets
 top_rows = 2
 top_cols = 3

config/vufind/facets.ini

@@ -74,6 +74,12 @@ dateRange[] = publishDate
 facet_limit = 30
 ; Override facet_limit on a per-field basis using this array:
 ;facet_limit_by_field[format] = 50
+; By default, the side facets will only show 6 facets and then the "show more"
+; button. This can get configured with the showMore settings.
+; You can use the * to set a new default setting.
+showMore[*] = 6
+; Or you can set a facet specific value by using the facet name as index.
+;showMore['format'] = 10
 ; Rows and columns for table used by top facets
 top_rows = 2
 top_cols = 3

module/VuFind/src/VuFind/Recommend/SideFacets.php

@@ -84,6 +84,13 @@ class SideFacets extends AbstractFacets
      */
     protected $checkboxFacets = [];
 
+    /**
+     * Settings controlling how many values to display before "show more."
+     *
+     * @var array
+     */
+    protected $showMoreSettings = [];
+
     /**
      * Collapsed facet setting
      *
@@ -181,6 +188,12 @@ class SideFacets extends AbstractFacets
             $this->checkboxFacets = array_flip($this->checkboxFacets);
         }
 
+        // Show more settings:
+        if (isset($config->Results_Settings->showMore)) {
+            $this->showMoreSettings
+                = $config->Results_Settings->showMore->toArray();
+        }
+
         // Collapsed facets:
         if (isset($config->Results_Settings->collapsedFacets)) {
             $this->collapsedFacets = $config->Results_Settings->collapsedFacets;
@@ -333,6 +346,27 @@ class SideFacets extends AbstractFacets
         return array_map('trim', explode(',', $this->collapsedFacets));
     }
 
+    /**
+     * Return the list of facets configured to be collapsed
+     *
+     * @param string $facetName Name of the facet to get
+     *
+     * @return int
+     */
+    public function getShowMoreSetting($facetName = '*')
+    {
+        // Look for either facet-specific configuration or else a configured
+        // default. If neither is found, initialize return value to 0.
+        if (isset($this->showMoreSettings[$facetName])) {
+            $val = intval($this->showMoreSettings[$facetName]);
+        } elseif (isset($this->showMoreSettings['*'])) {
+            $val = intval($this->showMoreSettings['*']);
+        }
+
+        // Validate the return value, defaulting to 6 if missing/invalid
+        return (isset($val) && $val > 0) ? $val : 6;
+    }
+
     /**
      * Get the list of filters to display
      *

themes/bootstrap3/templates/Recommend/SideFacets.phtml

@@ -56,6 +56,7 @@
 <? if (!empty($sideFacetSet) && $results->getResultTotal() > 0): ?>
   <? foreach ($sideFacetSet as $title => $cluster): ?>
     <? $allowExclude = $this->recommend->excludeAllowed($title); ?>
+    <? $facets_before_more = $this->recommend->getShowMoreSetting($title); ?>
     <div class="list-group facet" id="side-panel-<?=$this->escapeHtmlAttr($title) ?>">
       <div class="list-group-item title<? if(in_array($title, $collapsedFacets)): ?> collapsed<? endif ?>" data-toggle="collapse" href="#side-collapse-<?=$this->escapeHtmlAttr($title) ?>" >
         <?=$this->transEsc($cluster['label'])?>
@@ -160,11 +161,11 @@ JS;
                 }
               ?>
               <? $moreClass = 'narrowGroupHidden-'.$this->escapeHtmlAttr($title).' hidden'; ?>
-            <? if ($i == 6): ?>
+            <? if ($i == $facets_before_more): ?>
               <a id="more-narrowGroupHidden-<?=$this->escapeHtmlAttr($title)?>" class="list-group-item narrow-toggle" href="javascript:moreFacets('narrowGroupHidden-<?=$title ?>')"><?=$this->transEsc('more')?> ...</a>
             <? endif; ?>
             <? if ($thisFacet['isApplied']): ?>
-              <a class="list-group-item active<? if ($i>5): ?><?=$moreClass ?><?endif ?><? if ($thisFacet['operator'] == 'OR'): ?> facetOR applied<? endif ?>" href="<?=$this->currentPath().$results->getUrlQuery()->removeFacet($title, $thisFacet['value'], true, $thisFacet['operator']) ?>">
+              <a class="list-group-item active<? if ($i >= $facets_before_more): ?><?=$moreClass ?><?endif ?><? if ($thisFacet['operator'] == 'OR'): ?> facetOR applied<? endif ?>" href="<?=$this->currentPath().$results->getUrlQuery()->removeFacet($title, $thisFacet['value'], true, $thisFacet['operator']) ?>">
                 <? if ($thisFacet['operator'] == 'OR'): ?>
                   <i class="fa fa-check-square-o"></i>
                 <? else: ?>
@@ -175,9 +176,9 @@ JS;
             <? else: ?>
               <? $addURL = $this->currentPath().$results->getUrlQuery()->addFacet($title, $thisFacet['value'], $thisFacet['operator']); ?>
               <? if ($allowExclude): ?>
-                <div class="list-group-item facet<?=$thisFacet['operator'] ?><? if ($i>5): ?> <?=$moreClass ?><?endif ?>">
+                <div class="list-group-item facet<?=$thisFacet['operator'] ?><? if ($i >= $facets_before_more): ?> <?=$moreClass ?><?endif ?>">
               <? else: ?>
-                <a href="<?=$addURL ?>" class="list-group-item facet<?=$thisFacet['operator'] ?><? if ($i>5): ?> <?=$moreClass ?><?endif ?>">
+                <a href="<?=$addURL ?>" class="list-group-item facet<?=$thisFacet['operator'] ?><? if ($i >= $facets_before_more): ?> <?=$moreClass ?><?endif ?>">
               <? endif; ?>
               <span class="badge">
                 <?=$this->localizedNumber($thisFacet['count'])?>