Created
January 10, 2023 15:44
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python code for people that hates to do huge SQL queries
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## | |
##Coming from your friendly neighborhood Spider-Man! | |
## | |
def chunkArray(ArrObj, length): | |
'''Splits a list on a list of lists given a lenght''' | |
return list(ArrObj[0+i:length+i] for i in range(0, len(ArrObj), length)) | |
def where_in_builder(list_of_elements, var_to_filter,split_by=1_000,is_str=True,return_as_str=True): | |
'''Builds a IN(...) clause from a list, user can select either a single string or a list of IN(...) for each chunk''' | |
quotation = "'" if is_str else "" | |
in_list = [ '{0} in({1})'.format( var_to_filter , ' ,'.join( [f"{quotation}{x}{quotation}" for x in chunk_list ] ) ) for chunk_list in chunkArray(list_of_elements, split_by ) ] | |
return '\n OR '.join( in_list ) if return_as_str else in_list | |
def where_or_builder(list_of_elements, var_to_filter,split_by=1_000,is_str=True,return_as_str=True): | |
'''Builds a OR varname clause from a list, user can select either a single string or a list of OR varname for each chunk''' | |
quotation = "'" if is_str else "" | |
or_list = [ '\n OR '.join( [f"{var_to_filter} = {quotation}{x}{quotation}" for x in chunk_list ] ) for chunk_list in chunkArray(list_of_elements, split_by ) ] | |
return ' OR '.join( or_list ) if return_as_str else in_list | |
def where_in_builder_split(list_of_elements, var_to_filter,split_by=1_000,is_str=True,return_as_str=True): | |
where_in = where_in_builder(list_of_elements, var_to_filter,split_by,is_str,return_as_str) | |
return where_in.split("OR") |
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