Make query value to be set by the plugin. Fixes devbridge#48

Author: Tomas Kirda

spec/autocompleteBehavior.js

@@ -210,6 +210,41 @@ describe('Autocomplete', function () {
         });
     });
 
+    it('Should not require orginal query value from the server', function () {
+        var input = document.createElement('input'),
+            ajaxExecuted = false,
+            url = '/test-original-query',
+            autocomplete = new $.Autocomplete(input, {
+                serviceUrl: url
+            });
+
+        $.mockjax({
+            url: url,
+            responseTime: 50,
+            response: function () {
+                ajaxExecuted = true;
+                var response = {
+                    query: null,
+                    suggestions: ['A', 'B', 'C']
+                };
+                this.responseText = JSON.stringify(response);
+            }
+        });
+
+        input.value = 'A';
+        autocomplete.onValueChange();
+
+        waitsFor(function () {
+            return ajaxExecuted;
+        }, 'Ajax call never completed.', 100);
+
+        runs(function () {
+            expect(ajaxExecuted).toBe(true);
+            expect(autocomplete.suggestions.length).toBe(3);
+            expect(autocomplete.suggestions[0].value).toBe('A');
+        });
+    });
+
     it('Should should not preventDefault when tabDisabled is set to false', function () {
         var input = document.createElement('input'),
             autocomplete = new $.Autocomplete(input, {

src/jquery.autocomplete.js

@@ -95,7 +95,9 @@
                 },
                 paramName: 'query',
                 transformResult: function (response, originalQuery) {
-                    return typeof response === 'string' ? $.parseJSON(response) : response;
+                    var result = typeof response === 'string' ? $.parseJSON(response) : response;
+                    result.query = originalQuery;
+                    return result;
                 }
             };
 
@@ -491,7 +493,7 @@
             }
 
             // Display suggestions only if returned query matches current value:
-            if (result[options.paramName] === that.getQuery(that.currentValue)) {
+            if (result.query === that.getQuery(that.currentValue)) {
                 that.suggestions = result.suggestions;
                 that.suggest();
             }