DataArray: add api to access array dtype

getArrayDtype can be used for example by html5 app to display graph with correct dtype

bt5/erp5_wendelin/DocumentTemplateItem/portal_components/document.erp5.DataArray.py

@@ -111,9 +111,16 @@ class DataArray(BigFile):
   security.declareProtected(Permissions.AccessContentsInformation, 'getArrayShape')
   def getArrayShape(self):
     """
-    Get numpy array shape-
+    Get numpy array shape
     """
     return self.getArray().shape
+    
+  security.declareProtected(Permissions.AccessContentsInformation, 'getArrayDtype')
+  def getArrayDtype(self):
+    """
+    Get numpy array dtype
+    """
+    return self.getArray().dtype
 
   security.declareProtected(Permissions.View, 'index_html')
   def index_html(self, REQUEST, RESPONSE, format=_MARKER, inline=_MARKER, **kw):

bt5/erp5_wendelin/DocumentTemplateItem/portal_components/document.erp5.DataArray.xml

@@ -46,9 +46,9 @@
             <key> <string>text_content_warning_message</string> </key>
             <value>
               <tuple>
-                <string>W:119, 42: Redefining built-in \'format\' (redefined-builtin)</string>
-                <string>W:136,  4: Redefining built-in \'range\' (redefined-builtin)</string>
-                <string>W:163, 10: No exception type(s) specified (bare-except)</string>
+                <string>W:126, 42: Redefining built-in \'format\' (redefined-builtin)</string>
+                <string>W:143,  4: Redefining built-in \'range\' (redefined-builtin)</string>
+                <string>W:170, 10: No exception type(s) specified (bare-except)</string>
               </tuple>
             </value>
         </item>