NIHVIVO-646 Use autocomplete cache

productMods/edit/forms/js/addAuthorsToInformationResource.js

@@ -51,7 +51,7 @@ var addAuthorForm = {
     	
     	this.initAutocomplete();
     	
-    	this.initAuthorReordering();
+    	this.initAuthorDD();
     	
     	if (this.findValidationErrors()) {
     		this.initFormAfterInvalidSubmission();
@@ -133,15 +133,20 @@ var addAuthorForm = {
                         $('input#rank').val(rank);                          
                     }
                     
+                    // In future, do this selectively by only clearing terms that match the
+                    // deleted author's name
+                    addAuthorForm.acCache = {};
+
                     authorship.fadeOut(400, function() {
                         $(this).remove();
+                        // Actions that depend on the author having been removed from the DOM:
                         // If there's just one author remaining, disable drag-drop
                         if ($('.authorship').length == 1) {
                             addAuthorForm.disableAuthorDD();
                         }
                         // Reset the excluded uris in the autocomplete url so that the
                         //author just removed is no longer excluded.
-        					$('#lastName').autocomplete('option', 'source', addAuthorForm.getAcUrl());
+                        addAuthorForm.setAcUrl();
                     });
 
 //                      $(this).hide();
@@ -305,7 +310,7 @@ var addAuthorForm = {
     	this.personUriField.val('');
     },
     
-    initAuthorReordering: function() {
+    initAuthorDD: function() {
     	
     	var authorshipList = $('#authorships'),
     		authorships = authorshipList.children();
@@ -437,37 +442,39 @@ var addAuthorForm = {
     
     initAutocomplete: function() {
 
-    	//var cache = {};
+    	// Make cache a property of this so we can access it after removing 
-    	// RY change to this.cache = {}
+    	// an author.
-    	// then we'll have access to it when removing an author
+    	this.acCache = {};
+    	this.baseAcUrl = $('.acUrl').attr('id');    	
+    	this.setAcUrl();
     	
     	$('#lastName').autocomplete({
     		minLength: 2,
-    		source: addAuthorForm.getAcUrl(),
+    		source: function(request, response) {
-// RY For now, not using cache because there are complex interactions between filtering and caching.
+    			if (request.term in addAuthorForm.acCache) {
-// We want to filter out existingAuthors from autocomplete results, and this seems easiest to do
+    				console.log("found term in cache");
-// server-side. But if an author gets removed, we need to put them back in the results. If results
+    				response(addAuthorForm.acCache[request.term]);
-// are cached, the cache needs to be cleared on a remove. 
+    				return;
-//    		source: function(request, response) {
+    			}
-//    			if (request.term in cache) {
+    			console.log("not getting term from cache");
-//    				//console.log("found term in cache");
+    			
-//    				response(cache[request.term]);
+                // If the url query params are too long, we could do a post
-//    				return;
+                // here instead of a get. Add the exclude uris to the data
-//    			}
+                // rather than to the url.
-//    			
+    			$.ajax({
-//    			$.ajax({
+    				url: addAuthorForm.acUrl,
-//    				url: url,
+    				dataType: 'json',
-//    				dataType: 'json',
+    				data: request,
-//    				data: request,
+    				complete: function(xhr) {
-//    				complete: function(data) {
+                        // Not sure why, but we need an explicit json parse here. jQuery
-//    					cache[request.term] = data;
+                        // should parse the response text and return an json object.
-//    					console.log(data);
+                        var results = jQuery.parseJSON(xhr.responseText);
-//    					//console.log("not getting term from cache");
+    					addAuthorForm.acCache[request.term] = results;  
-//    					response(data);
+    					response(results);
-//    				}
+    				}
-//
+
-//    			});
+    			});
-//    		},
+    		},
 		    select: function(event, ui) {
     			addAuthorForm.showSelectedAuthor(ui);		
 			}
@@ -475,15 +482,18 @@ var addAuthorForm = {
 
     },
     
-    getAcUrl: function() {
+    setAcUrl: function() {
-    	var url = $('.acUrl').attr('id'),
+    	var url = this.baseAcUrl, 
     		existingAuthors = $('#authorships .authorLink'); 
     	
+    	//console.log("in setAcUrl()");
+    	//console.log("number of existing authors: " + existingAuthors.length);
+    	
     	existingAuthors.each(function() {
     		url += '&excludeUri=' + $(this).attr('id');
     	});
 
-    	return url;
+    	this.acUrl = url;
     },
     
     prepareSubmit: function() {