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r4fek/django-cassandra-engine

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django_cassandra_engine/utils.py

Summary

Maintainability
C
7 hrs
Test Coverage

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

def get_cql_models(app, connection=None, keyspace=None):
    """
    :param app: django models module
    :param connection: connection name
    :param keyspace: keyspace
Severity: Minor
Found in django_cassandra_engine/utils.py - About 1 hr to fix

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

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:
Severity: Minor
Found in django_cassandra_engine/utils.py - About 1 hr to fix

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

Consider simplifying this complex logical expression.
Open

            if (
                obj.__connection__ == connection
                or (obj.__connection__ is None and is_default_connection)
                or obj.__connection__ is None
                and obj.__keyspace__ is not None
Severity: Major
Found in django_cassandra_engine/utils.py - About 40 mins to fix

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

        def callproc(self, procname, params=None):
        with self.db.wrap_database_errors:
            if params is None:
                return self.cursor.callproc(procname)
            else:
    Severity: Major
    Found in django_cassandra_engine/utils.py and 1 other location - About 2 hrs to fix
    django_cassandra_engine/utils.py on lines 41..46

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 52.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

        def execute(self, sql, params=None):
        with self.db.wrap_database_errors:
            if params is None:
                return self.cursor.execute(sql)
            else:
    Severity: Major
    Found in django_cassandra_engine/utils.py and 1 other location - About 2 hrs to fix
    django_cassandra_engine/utils.py on lines 34..39

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 52.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

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