File __init__.py has 690 lines of code (exceeds 250 allowed). Consider refactoring.

Open

from functools import partial
from itertools import chain
from operator import attrgetter
import collections.abc
import copy

Function __new__ has a Cognitive Complexity of 69 (exceeds 5 allowed). Consider refactoring.

Open

    def __new__(cls, name, bases, attrs):
        parents = [b for b in bases if isinstance(b, DjangoCassandraModelMetaClass)]

        if not parents:
            return super(ModelBase, cls).__new__(cls, name, bases, attrs)

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Function get_field_kwargs has a Cognitive Complexity of 37 (exceeds 5 allowed). Consider refactoring.

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    def get_field_kwargs(self, field_name, model_field):
        """Creates a default instance of a basic non-relational field."""
        kwargs = {}
        validator_kwarg = list(model_field.validators)

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Function _get_unique_checks has a Cognitive Complexity of 34 (exceeds 5 allowed). Consider refactoring.

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def _get_unique_checks(self, exclude=None):
    # Taken from django.db.models.base
    if exclude is None:
        exclude = []
    unique_checks = []

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Function python_order_by has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.

Open

    def python_order_by(self, qset, colnames):
        if not isinstance(qset, list):
            raise TypeError("qset must be a list")
        colnames = convert_pk_field_names_to_real(
            model=self.model, field_names=colnames

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Function _perform_unique_checks has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

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def _perform_unique_checks(self, unique_checks):
    # Taken from django.db.models.base
    errors = {}

    for model_class, unique_check in unique_checks:

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Function __new__ has 63 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    def __new__(cls, name, bases, attrs):
        parents = [b for b in bases if isinstance(b, DjangoCassandraModelMetaClass)]

        if not parents:
            return super(ModelBase, cls).__new__(cls, name, bases, attrs)

Function formfield has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

Open

def formfield(self, form_class=None, choices_form_class=None, **kwargs):
    # Taken from django.db.models.fields.__init__
    defaults = {
        "required": not self.blank,
        "label": capfirst(self.verbose_name),

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Function order_by has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

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    def order_by(self, *colnames):
        if len(colnames) == 0:
            clone = copy.deepcopy(self)
            clone._order = []
            return clone

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Function full_clean has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

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def full_clean(self, exclude=None, validate_unique=True):
    # Taken from django.db.models.base
    errors = {}
    if exclude is None:
        exclude = []

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Function convert_pk_field_names_to_real has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

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def convert_pk_field_names_to_real(model, field_names):
    """
    Convert field names including 'pk' to the real field names:
    >>> convert_pk_field_names_to_real(['pk', 'another_field'])
    ['real_pk_field', 'another_field']

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Function get_cql_models has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

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def get_cql_models(app, connection=None, keyspace=None):
    """
    :param app: django models module
    :param connection: connection name
    :param keyspace: keyspace

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Function _add_django_meta_and_register_model has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

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    def _add_django_meta_and_register_model(cls, klass, attrs, name):
        # Create the class.
        module = attrs.get("__module__")
        if not module:
            return klass

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Function _set_column_django_attributes has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    def _set_column_django_attributes(self, cql_column, name):
        allow_null = (
            (
                not cql_column.required
                and not cql_column.is_primary_key

Function get_cassandra_connection has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

def get_cassandra_connection(alias=None, name=None):
    """:return: cassandra connection matching alias or name or just first found."""
    for _alias, connection in get_cassandra_connections():
        if alias is not None:
            if alias == _alias:

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Function _perform_date_checks has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

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def _perform_date_checks(self, date_checks):
    # Taken from django.db.models.base
    errors = {}
    for model_class, lookup_type, field, unique_for in date_checks:
        lookup_kwargs = {}

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Function _import_management has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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    def _import_management():
        """
        Import the 'management' module within each installed app, to register
        dispatcher events.
        """

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Function run_validators has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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def run_validators(self, value):
    # Taken from django.db.models.fields.__init__
    if value in self.empty_values:
        return

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Function clean_fields has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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def clean_fields(self, exclude=None):
    # Taken from django.db.models.base
    if exclude is None:
        exclude = []

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Function build_standard_field has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    def build_standard_field(self, field_name, model_field):
        """Create regular model fields."""
        field_mapping = ClassLookupDict(self.serializer_field_mapping)

        field_class = field_mapping[model_field]

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