Changeset 31543 for main/trunk/greenstone3/web/interfaces/default/js/javascript-global-functions.js

Timestamp:

2017-03-28T17:04:10+13:00 (7 years ago)

Author:

ak19

Message:

Next incremental change to adding user comments in GS3. This time to make the get-meta-array and set-meta-array functions be called asynchronously from user_comments.js (these operations can be called synchronously by any others wishing to tuse them, and do so by default). user_comments.js chooses to call get-meta-array and even set-meta-array asynchronously by passing in the appropriate flag to make the ajax calls asynchronous. To protect against any overlapping read/write issues and mutliple submit comments (set-meta-array calls) from being fired off with overlap, the submit button gets disabled until the set-meta-array call has returned and its callback is called. Similarly, the submit button is disabled until the page has finished loading existing user comments (get-meta-array call).

File:

• main/trunk/greenstone3/web/interfaces/default/js/javascript-global-functions.js (modified) (3 diffs)

main/trunk/greenstone3/web/interfaces/default/js/javascript-global-functions.js

@@ -592 +592 @@
 // behaviour of calling set-metadata-array. E.g. where=import|archives|index
 // THIS METHOD IS SYNCHRONOUS
-gs.functions.setMetadataArray = function(collection, site, docArray, metamode, where, responseFunction) 
+gs.functions.setMetadataArray = function(collection, site, docArray, metamode, where, responseFunction, forceSync) 
 {
     docArrayJSON = JSON.stringify(docArray);
@@ -610 +610 @@
     }
     
-
-    var response = callMetadataServer("Setting metadata in "+where, "cgi-bin/metadata-server.pl?"+params, responseFunction);
+    // set operations are generally synchronous, but allow calling function to force ajax call 
+    // to be synchronous or not. Default is synchronous, as it was for GS2
+    if(forceSync == null) {
+    forceSync = true;
+    }
+
+    var response = callMetadataServer("Setting metadata in "+where, "cgi-bin/metadata-server.pl?"+params, responseFunction, {"forceSync": forceSync});
 
     return response;
@@ -625 +630 @@
 // See description for setMetadataArray above for information about the 'where' parameter.
 // THIS METHOD IS SYNCHRONOUS BY DEFAULT. Set forceSync to false to override this default behaviour
-gs.functions.getMetadataArray = function(collection, site, docArray, where, forceSync, responseFunction)
+gs.functions.getMetadataArray = function(collection, site, docArray, where, responseFunction, forceSync)
 {
     docArrayJSON = JSON.stringify(docArray);