diff --git a/src/python/dm/common/mongodb/api/datasetMongoDbApi.py b/src/python/dm/common/mongodb/api/datasetMongoDbApi.py
index f89413746b2130231fc9b0150baa221aa4b73348..5aef5f6e9564a665e1bbb34afb8ad4b922d4835a 100755
--- a/src/python/dm/common/mongodb/api/datasetMongoDbApi.py
+++ b/src/python/dm/common/mongodb/api/datasetMongoDbApi.py
@@ -15,7 +15,6 @@ from dm.common.objects.datasetMetadata import DatasetMetadata
 class DatasetMongoDbApi(DmMongoDbApi):
 
     SYSTEM_KEY_LIST = ['_id', '_datasetName', '_experimentName']
-    IGNORE_CASE_KEY = '_ignoreCase' 
     USE_DATASET_NAME_KEY = '_useDatasetName' 
     USE_EXPERIMENT_NAME_KEY = '_useDatasetName' 
 
@@ -24,21 +23,6 @@ class DatasetMongoDbApi(DmMongoDbApi):
         self.datasetCollection = DatasetCollection(self.dbClient)
         self.fileMongoDbApi = FileMongoDbApi()
 
-    @classmethod
-    def convertStringsToRegex(cls, dict, ignoreCase=True):
-        dict2 = copy.copy(dict)
-        for (key,value) in dict2.items():
-            if key in cls.SYSTEM_KEY_LIST:
-                continue
-            elif type(value) == types.StringType or type(value) == types.UnicodeType:
-                cls.getLogger().debug('Converting to regex: %s for key %s' % (value,key))
-                if ignoreCase:
-                    regex = re.compile(value, re.IGNORECASE)
-                else:
-                    regex = re.compile(value)
-                dict2[key] = regex
-        return dict2
-
     @DmMongoDbApi.executeDbCall
     def addExperimentDataset(self, datasetInfo, **kwargs):
         datasetInfo2 = self.getMongoDict(datasetInfo)
diff --git a/src/python/dm/common/mongodb/api/dmMongoDbApi.py b/src/python/dm/common/mongodb/api/dmMongoDbApi.py
index b58d23deffb212ddde2cdade8c90c27efa5e0e2f..338ae1aa1a2a37935b94141a9899e6b173871b21 100755
--- a/src/python/dm/common/mongodb/api/dmMongoDbApi.py
+++ b/src/python/dm/common/mongodb/api/dmMongoDbApi.py
@@ -1,6 +1,9 @@
 #!/usr/bin/env python
 
 import copy
+import types
+import re
+
 from dm.common.exceptions.dmException import DmException
 from dm.common.utility.loggingManager import LoggingManager
 from dm.common.mongodb.impl.mongoDbManager import MongoDbManager
@@ -9,6 +12,7 @@ class DmMongoDbApi:
     """ Base Mongo DB API class. """
 
     SYSTEM_KEY_LIST = ['_id']
+    IGNORE_CASE_KEY = '_ignoreCase'
 
     def __init__(self):
         self.logger = LoggingManager.getInstance().getLogger(self.__class__.__name__)
@@ -72,6 +76,21 @@ class DmMongoDbApi:
                 del mongoDict[key2]
         return mongoDict
 
+    @classmethod
+    def convertStringsToRegex(cls, dict, ignoreCase=True):
+        dict2 = copy.copy(dict)
+        for (key,value) in dict2.items():
+            if key in cls.SYSTEM_KEY_LIST:
+                continue
+            elif type(value) == types.StringType or type(value) == types.UnicodeType:
+                cls.getLogger().debug('Converting to regex: %s for key %s' % (value,key))
+                if ignoreCase:
+                    regex = re.compile(value, re.IGNORECASE)
+                else:
+                    regex = re.compile(value)
+                dict2[key] = regex
+        return dict2
+
 #######################################################################
 # Testing.
 if __name__ == '__main__':
diff --git a/src/python/dm/common/mongodb/api/fileMongoDbApi.py b/src/python/dm/common/mongodb/api/fileMongoDbApi.py
index f022c93bf5f596b018e7718ecd9ae92fc155c129..6254b4e27fea8f6afa86082d05bfa8cac5d2b369 100755
--- a/src/python/dm/common/mongodb/api/fileMongoDbApi.py
+++ b/src/python/dm/common/mongodb/api/fileMongoDbApi.py
@@ -1,6 +1,9 @@
 #!/usr/bin/env python
 
 import copy
+import types
+import re
+
 from dm.common.exceptions.dmException import DmException
 from dm.common.mongodb.api.dmMongoDbApi import DmMongoDbApi
 from dm.common.mongodb.impl.fileCollection import FileCollection
@@ -24,6 +27,9 @@ class FileMongoDbApi(DmMongoDbApi):
     @DmMongoDbApi.executeDbCall
     def getFiles(self, queryDict={}, returnFieldDict=FileCollection.ALL_FIELDS_DICT, **kwargs):
         queryDict2 = self.getMongoDict(queryDict)
+        self.getLogger().debug('Converting query dict to regex patterns')
+        ignoreCase = kwargs.get(self.IGNORE_CASE_KEY, True)
+        queryDict2 = self.convertStringsToRegex(queryDict2, ignoreCase)
         return self.listToDmObjects(self.fileCollection.findByQueryDict(queryDict2, returnFieldDict), FileMetadata)
 
     @DmMongoDbApi.executeDbCall