87 lines
3.2 KiB
Python
87 lines
3.2 KiB
Python
from openpyxl import load_workbook
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from right_tree.api.models import Zone
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def get_pk_mapping(object, mapping_key="name"):
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""" Returns a dictionary mapping a django model primary key to another given field.
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"""
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pk_mapping = {}
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for instance in object.objects.all():
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pk_mapping[getattr(instance, mapping_key)] = instance.pk
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return pk_mapping
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def get_zone_pk_mapping(zone_model):
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""" Maps the string instance (unique) of a zone to its corresponding primary key.
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"""
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zone_pk_mapping = {}
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for instance in zone_model.objects.all():
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zone_pk_mapping[str(instance)] = instance.pk
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return zone_pk_mapping
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def get_col_mappings(sheet, start_col, stop_col, row_index):
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""" Returns a dictionary that maps a spreadsheet cell value to a corresponding column index.
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"""
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col_mappings = {}
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for row in sheet.iter_rows(min_col=start_col, max_col=stop_col, min_row=row_index, max_row=row_index, values_only=True):
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for i, col_name in enumerate(row):
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col_mappings[col_name] = i
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return col_mappings
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def get_zone_col_mappings(sheet, start_col, stop_col, start_row, stop_row):
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""" Returns a dictionary that maps a spreadsheet zone string object to a column index.
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"""
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zone_col_mappings = {}
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current_zone = current_variant = current_refined_variant = None
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for i, col in enumerate(sheet.iter_cols(min_col=start_col, max_col=stop_col, min_row=start_row, max_row=stop_row, values_only=True)):
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zone_name, zone_variant, zone_refined_variant = col
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if zone_name is not None:
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current_zone = zone_name
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current_variant = current_refined_variant = None
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if zone_variant is not None:
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current_variant = zone_variant
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current_refined_variant = None
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current_refined_variant = zone_refined_variant if zone_refined_variant is not None else current_refined_variant
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zone_obj = Zone(name=current_zone, variant=current_variant,
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refined_variant=current_refined_variant)
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zone_col_mappings[str(zone_obj)] = i + start_col
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return zone_col_mappings
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def get_pk_list_from_str(values_str, pk_mapping, fixes={}):
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""" Given a list of comma separated values from the spreadsheet. Returns a list of primary keys that
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correspond to the relevant values with any given mapping fixes applied.
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"""
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pk_list = []
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for value in values_str.split(','):
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processed_value = value.lstrip().rstrip().replace(
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'_', ' ').replace('-', ' ').replace('’', '\'')
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# Applies any mapping adjustments between spreadsheet data and the database values
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if fixes and processed_value in fixes:
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processed_value = fixes[processed_value]
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# Adds the pk value for the value in the databse
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if processed_value in pk_mapping:
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pk_list.append(pk_mapping[processed_value])
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return pk_list
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def get_spreadsheet(data_path, spreadsheet_filename):
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""" Returns a spreadsheet from a resources directory given the data path and
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spreadsheet filename.
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"""
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spreadsheet_path = data_path / 'resources' / spreadsheet_filename
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workbook = load_workbook(filename=spreadsheet_path)
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return workbook.active
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