django/db/backends/mysql/operations.py
File operations.py
has 370 lines of code (exceeds 250 allowed). Consider refactoring. Open
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import uuid
from django.conf import settings
from django.db.backends.base.operations import BaseDatabaseOperations
from django.db.backends.utils import split_tzname_delta
Function sql_flush
has 6 arguments (exceeds 4 allowed). Consider refactoring. Open
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def sql_flush(self, style, tables, *, reset_sequences=False, allow_cascade=False):
Function datetime_extract_sql
has 5 arguments (exceeds 4 allowed). Consider refactoring. Open
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def datetime_extract_sql(self, lookup_type, sql, params, tzname):
Function datetime_trunc_sql
has 5 arguments (exceeds 4 allowed). Consider refactoring. Open
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def datetime_trunc_sql(self, lookup_type, sql, params, tzname):
Function time_trunc_sql
has 5 arguments (exceeds 4 allowed). Consider refactoring. Open
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def time_trunc_sql(self, lookup_type, sql, params, tzname=None):
Function on_conflict_suffix_sql
has 5 arguments (exceeds 4 allowed). Consider refactoring. Open
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def on_conflict_suffix_sql(self, fields, on_conflict, update_fields, unique_fields):
Function date_extract_sql
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
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def date_extract_sql(self, lookup_type, sql, params):
# https://dev.mysql.com/doc/mysql/en/date-and-time-functions.html
if lookup_type == "week_day":
# DAYOFWEEK() returns an integer, 1-7, Sunday=1.
return f"DAYOFWEEK({sql})", params
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Avoid too many return
statements within this function. Open
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return f"EXTRACT({lookup_type} FROM {sql})", params