More generic "extra search services" implementation: supports multiple services

git-svn-id: svn://svn.open-ils.org/ILS-Contrib/conifer/branches/rel_1_6_0@838 6d9bc8c9-1ec2-4278-b937-99fde70a366f

diff --git a/web/opac/skin/default/js/result_common.js b/web/opac/skin/default/js/result_common.js
index 2181cc0..4edf388 100644 (file)
--- a/web/opac/skin/default/js/result_common.js
+++ b/web/opac/skin/default/js/result_common.js
@@ -5,9 +5,28 @@ var lowHitCount = 4;
 var isbnList = '';
 var googleBooksLink = true;
 var enableHoldsOnAvailable = false;
-var enableEbooksLowHits = false;
+var enableExtraSearchesLowHits = false;
 var localProxyPrefix = '';
 
+/* an array of the extra services to which we want to direct people, in order of priority:
+Properties:
+  url: will be proxied via localProxyPrefix
+  description: will be used in the OPAC display
+  termTransform: a function name that transforms Evergreen compiled searches to the target search format
+*/
+var externalSearchServices = [
+    {   
+        "url": "http://books.scholarsportal.info/search.html?searchField=All+Fields&limit=full_text&sortBy=relevance&collection=all&searchTerm=",
+        "description": "Search ScholarsPortal ebooks",
+        "termTransform": "allKeywords"
+    },
+    {   
+        "url": "http://scholar.google.com/scholar?q=",
+        "description": "Search Google Scholar",
+        "termTransform": "allKeywords"
+    }
+];
+
 var resultFetchAllRecords = false;
 var resultCompiledSearch = null;
 
@@ -213,8 +232,8 @@ function resultLowHits() {
 
        resultSuggestSearchClass();
 
-    if (enableEbooksLowHits) {
-        resultSuggestEbooks();
+    if (enableExtraSearchesLowHits) {
+        resultSuggestExtraSearches();
     }
 
        if(getTerm()) resultExpandSearch(); /* advanced search */
@@ -257,8 +276,8 @@ function resultZeroHits() {
        unHideMe($('result_low_hits'));
        unHideMe($('result_zero_hits_msg'));
 
-    if (enableEbooksLowHits) {
-        resultSuggestEbooks();
+    if (enableExtraSearchesLowHits) {
+        resultSuggestExtraSearches();
     }
        //if(getTerm()) resultExpandSearch(); /* advanced search */
 }
@@ -282,17 +301,31 @@ function resultExpandSearch() {
        }
 }
 
-/* For now we only generate a link to ScholarsPortal ebook platform */
-function resultSuggestEbooks() {
-        var ebook_search = localProxyPrefix + 'http://books.scholarsportal.info/search.html?searchField=All+Fields&limit=full_text&sortBy=relevance&collection=all&searchTerm=';
-        var ebook_terms = '';
-        for (var key in resultCompiledSearch.searches) {
-                ebook_search += resultCompiledSearch.searches[key].term.replace(/ /g, '+') + '+';
-                ebook_terms += resultCompiledSearch.searches[key].term + ' ';
-        }
-        ebook_search.replace('+$', '');
-        ebook_terms.replace(' $', '');
-        dojo.place("<div style='text-align: center; width: 100%; margin-left: auto; margin-right: auto;'><strong>Search ScholarsPortal ebooks</strong>: <a class='classic_link' href='" + ebook_search + "'>" + ebook_terms + "</a><div>", "result_low_hits", "child");
+/* Generate links to our extra search services */
+function resultSuggestExtraSearches() {
+    dojo.forEach(externalSearchServices, function(esItem) {
+        var extraSearchStuff = this[esItem.termTransform].apply(this, [esItem.url]);
+        dojo.place("<div style='text-align: center; width: 100%; margin-left: auto; margin-right: auto;'><strong>" +
+            esItem.description + "</strong>: <a class='classic_link' href='" +
+            extraSearchStuff.searchTerms + "'>" + extraSearchStuff.displayTerms + "</a><div>", "result_low_hits", "child"
+        );
+    });
+}
+
+/* Transform everything in the Evergreen search to plain old keywords */
+function allKeywords(esUrl) {
+    var ebook_search = localProxyPrefix + esUrl;
+    var ebook_terms = '';
+    for (var key in resultCompiledSearch.searches) {
+        ebook_search += resultCompiledSearch.searches[key].term + '+';
+        ebook_terms += resultCompiledSearch.searches[key].term + ' ';
+    }
+    ebook_search = ebook_search.replace(/ /g, '+');
+    ebook_search = ebook_search.replace(/\%20/g, '+');
+    ebook_search = ebook_search.replace(/\+$/g, '');
+    ebook_terms = ebook_terms.replace(/ $/g, '');
+    var extraSuggestion = {"displayTerms": ebook_terms, "searchTerms": ebook_search};
+    return extraSuggestion;
 }
 
 function resultSuggestSearchClass() {