Data Array View: allow strucutred view of plain array

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

@@ -69,9 +69,9 @@ class DataArrayLine(DataArray):
       if dtype_expression is None:
         dtype = np.dtype(array_view.dtype)
       else:
-        dtype = evaluateExpressionFromString(
+        dtype = np.dtype(evaluateExpressionFromString(
         createExpressionContext(None, portal=getindex),
-        dtype_expression)
+        dtype_expression))
       dtype.names = name_list
       return array_view.view(dtype=dtype)
     return array_view

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

@@ -51,27 +51,28 @@ class DataArrayViewLine(DataArray):
     """
     Get numpy view of Parent Data Array according to index.
     """
+    zbigarray = self.getPredecessorValue().getArray()
     getindex = GetIndex("getindex")
+    index_expression = self.getIndexExpression()
+    dtype_expression = self.getDtypeExpression()
+    name_list = self.getNameList()
     index = evaluateExpressionFromString(
       createExpressionContext(None, portal=getindex),
-      "python: portal[%s]" %self.getIndexExpression()
+      "python: portal[%s]" %index_expression
     )
-    zbigarray = self.getPredecessorValue().getArray()
     try:
       array_view = zbigarray[index]
     except TypeError:
       array = zbigarray[:]
       new_dtype = np.dtype({name:array.dtype.fields[name] for name in index})
       array_view = np.ndarray(array.shape, new_dtype, array, 0, array.strides)
-    name_list = self.getNameList()
-    dtype_expression = self.getDtypeExpression()
-    if dtype_expression is not None or name_list:
-      if dtype_expression is None:
-        dtype = np.dtype(array_view.dtype)
-      else:
-        dtype = evaluateExpressionFromString(
-        createExpressionContext(None, portal=getindex),
-        dtype_expression)
+
+    if dtype_expression is not None:
+      dtype = np.dtype(evaluateExpressionFromString(
+        createExpressionContext(None, portal=getindex), dtype_expression))
+      if name_list:
         dtype.names = name_list
-      return array_view.view(dtype=dtype)
+      array_view = array_view.reshape(array_view.size,).view(dtype)
+    else:
+      array_view = array_view
     return array_view