Save a change right after it gets applied rather than when it gets created. This is because when a change gets applied, it might grab onto the old data in order to able to revert later, and we need to save that old data together with the change.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@74 7d457c2a-affb-35e4-300a-418c747d4874

src/main/java/com/metaweb/gridworks/history/HistoryEntry.java

@@ -38,8 +38,6 @@ public class HistoryEntry implements Serializable, Jsonizable {
 		this.time = new Date();
 		
 		_change = change;
-		
-		saveChange();
 	}
 	
 	public void write(JSONWriter writer, Properties options)
@@ -59,6 +57,11 @@ public class HistoryEntry implements Serializable, Jsonizable {
 			loadChange();
 		}
 		_change.apply(project);
+        
+		// When a change is applied, it can hang on to old data (in order to be able
+		// to revert later). Hence, we need to save the change out.
+		
+        saveChange();
 	}
 	
 	public void revert(Project project) {

src/main/webapp/scripts/project/schema-alignment.js

@@ -5,20 +5,87 @@ SchemaAlignment.autoAlign = function() {
     
     var columns = theProject.columnModel.columns;
     
-    var typedColumns = [];
+    var typedCandidates = [];
     var candidates = [];
     
     for (var c = 0; c < columns.length; c++) {
         var column = columns[c];
-        if ("reconConfig" in column && column.reconConfig != null) {
-            typedColumns.push(column);
-        }
-        candidates.push({
+        var typed = "reconConfig" in column && column.reconConfig != null;
+        var candidate = {
             status: "unbound",
+            typed: typed,
             index: c,
             column: column
-        })
+        };
+        
+        candidates.push(candidate);
+        if (typed) {
+            typedCandidates.push(candidate);
+        }
     }
     
+    if (typedCandidates.length > 0) {
         
+    } else {
+        var queries = {};
+        for (var i = 0; i < candidates.length; i++) {
+            var candidate = candidates[i];
+            var name = SchemaAlignment._cleanName(candidate.column.headerLabel);
+            var key = "t" + i + ":search";
+            queries[key] = {
+                "query" : name,
+                "limit" : 10,
+                "type" : "/type/type,/type/property",
+                "type_strict" : "any"
+            };
+        }
+        
+        SchemaAlignment._batchSearch(queries, function(result) {
+            console.log(result);
+        });
+    }
 };
+
+SchemaAlignment._batchSearch = function(queries, onDone) {
+    var keys = [];
+    for (var n in queries) {
+        if (queries.hasOwnProperty(n)) {
+            keys.push(n);
+        }
+    }
+    
+    var result = {};
+    var args = [];
+    var makeBatch = function(keyBatch) {
+        var batch = {};
+        for (var k = 0; k < keyBatch.length; k++) {
+            var key = keyBatch[k];
+            batch[key] = queries[key];
+        }
+        
+        args.push("http://api.freebase.com/api/service/search?" + 
+            $.param({ "queries" : JSON.stringify(batch) }) + "&callback=?");
+            
+        args.push(null); // no data
+        args.push(function(data) {
+            for (var k = 0; k < keyBatch.length; k++) {
+                var key = keyBatch[k];
+                result[key] = data[key];
+            }
+        });
+    };
+    
+    for (var i = 0; i < keys.length; i += 10) {
+        makeBatch(keys.slice(i, i + 10));
+    }
+    
+    args.push(function() {
+        onDone(result);
+    })
+    
+    Ajax.chainGetJSON.apply(null, args);
+};
+
+SchemaAlignment._cleanName = function(s) {
+    return s.replace(/\W/g, " ").replace(/\s+/g, " ").toLowerCase();
+}