Hi, I wanted to create numberfield dynamically based on the number of files uploaded/to be analysed to cusomise a parameter for each file.
But I ended up with following error:
2024-08-22 16:07:43.505 ERROR : ‘function’ object has no attribute ‘_generate_entity_type’
2024-08-22 16:07:43.505 ERROR : Error in app definition, app not reloaded
I can also confirm that " num_files, epa_ranges = analyze_files()" works pretty well in the controller.
Can someone enlight me what happend? Thank you.
def create_EPA_sliders():
num_files, epa_ranges = analyze_files()
for i in range(1, num_files):
slider_name = f'slider_{i}'
setattr(
Section1,
slider_name,
NumberField(
f'Adjust axial strain % for test {i}',
min=0,
max=30,
variant='slider',
flex=100,
default=10.5,
name=f"epa_{i}",
num_decimals=1,
suffix="%",
description=f'Specify axial strain at critical state for test {i}'
)
)
My recommendation would be to have a parametrization set up with a field to upload your files, and then a dynamic array that can be used to have these number fields dynamically set. The setting of the fields can be done through a SetParamsButton. E.g.:
class Parametrization(ViktorParametrization):
file_upload = MultiFileField("Upload files")
set_fields_btn = SetParamsButton("Set my fields", method="set_fields")
dynamic_array = DynamicArray("Dynamic numbers based on files")
dynamic_array.my_number = NumberField("My number", variant="slider", min=0, max=30, flex=100)
class Controller(ViktorController):
label = "My Entity Type"
parametrization = Parametrization
def set_fields(self, params, **kwargs):
number_list = []
for _file in params.file_upload:
number_list.append({"my_number": 10.5})
params.dynamic_array = number_list
return SetParamsResult(params)
Many thanks, it worked! But when I want to pass a two column list to Table, it only allowed one.
In the case below, only Axial strain (%) was passed to the Table from number_list, while the number_list contains both Test ID and Axial strain (%), which is printed as Number List: [{‘Test ID’: ‘Test 10’, ‘Axial strain (%)’: 8.3}…
def set_fields(self, params, **kwargs):
number_list = []
# Get the list of files in the order they are retrieved
file_dict = self._get_sample_file_dict()
files = list(file_dict.glob("*.csv"))
sample_file_count = len(files) # Use the length of files for sample CSV toggle
for file in files:
file_stem = Path(file).stem
print(f"Processing file: {file}, Test ID: {file_stem}") # Debugging: Check file and Test ID
number_list.append({"Test ID": file_stem, "Axial strain (%)": 8.3})
print("Number List:", number_list) # Debugging: Check the final number_list
# Set the eap_tabe with the ordered number_list
params.Section1.eap_tabe = number_list
return SetParamsResult(params)
I suspect that it has to do with the keys that you are using for your number_list. Fields are defined as names without spacings, and from your example it looks like you might be using the labels. Your snippet does not include your parametrization, but I suspect that it should be changed to something like:
