Modify dfs2 items not working

[daniel-caichac-DHI]

Hi.

I have a bunch of files with wrong item type (I did not make them). I need to re-write the eumUnit and eumItem but re-writing the files is not an option since each file is +100GB.

I am currently using DataUtility which takes like a second but I need to click in each item of each file (it is 4 items and 50 files, so lots of clicks).

I tried this, but does not work. File date is updated, but the items remain unchanged.

mikecore-python/tests/examples_dfs2.py

Lines 47 to 58 in bdccb53

	def ModifyDfs2ItemInfo(filename):
	# Open the file for editing
	file = DfsFileFactory.Dfs2FileOpenEdit(filename);
	# Original name is "Landuse" (7 characters), "GroundUse" is truncated to "GroundU"
	file.ItemInfo[0].Name = "GroundUse";
	# Provide a new quantity (updating the item and unit of the quantity directly does not work!)
	file.ItemInfo[0].Quantity = eumQuantity(eumItem.eumIAreaFraction, eumUnit.eumUPerCent);
	# done
	file.Close();

is there any suggestion?

[ecomodeller]

@JesperGr The test related to this is commented out, why is that?

mikecore-python/tests/test_dfs2.py

Lines 240 to 272 in bdccb53

	# def ModifyLanduseItemInfoTest():
	#
	# originalFilename = "testdata/Landuse.dfs2";
	# filename = "testdata/testtmp/test_create_Landuse.dfs2";
	#
	# File.Copy(originalFilename, filename, true);
	# File.SetAttributes(filename, FileAttributes.Normal); # remove read-only flag
	#
	# # Check the new file
	#
	# file = DfsFileFactory.Dfs2FileOpen(filename);
	#
	# # Check existing data
	# itemInfo = file.ItemInfo[0];
	# assert_equal("Landuse", itemInfo.Name);
	# assert_equal(eumItem.eumIIntegerCode, itemInfo.Quantity.Item);
	# assert_equal(eumUnit.eumUintCode, itemInfo.Quantity.Unit);
	#
	# file.Close();
	#
	# # Method that modifies the Landuse.dfs2 file
	# ExamplesDfs2.ModifyDfs2ItemInfo(filename);
	#
	# # Check the new file
	# file = DfsFileFactory.Dfs2FileOpen(filename);
	#
	# # Check existing data
	# itemInfo = file.ItemInfo[0];
	# assert_equal("GroundU", itemInfo.Name);
	# assert_equal(eumItem.eumIAreaFraction, itemInfo.Quantity.Item);
	# assert_equal(eumUnit.eumUPerCent, itemInfo.Quantity.Unit);
	#
	# file.Close();

[JesperGr]

I believe this implementation was never transferred to MIKE Core Python, and hence it is not working from Python. It was not required by MIKE IO when MIKE Core Python was implemented.

It works in the C# version. One option would be to use PythonNet, and then call the C# API instead of the Python API.