nimeshkverma/mongo_joins

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

    def left_outer(self):
        """
            Performs Left Outer Join
            :return left_outer: dict
        """
Severity: Major
Found in mongojoin/mongojoin.py and 1 other location - About 1 hr to fix
mongojoin/mongojoin.py on lines 103..111

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 46.

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 right_outer(self):
        """
            Performs Right Outer Join
            :return right_outer: dict
        """
Severity: Major
Found in mongojoin/mongojoin.py and 1 other location - About 1 hr to fix
mongojoin/mongojoin.py on lines 93..101

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 46.

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

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

    def generate_join_docs_list(self, left_collection_list, right_collection_list):
        """
            Helper function for merge_join_docs
            :param left_collection_list: Left Collection to be joined
            :type  left_collection_list: MongoCollection
Severity: Minor
Found in mongojoin/mongojoin.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_mongo_cursor has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

    def get_mongo_cursor(self, bulk=False):
        """
            Returns Mongo cursor using the class variables

            :param bulk: bulk writer option
Severity: Minor
Found in mongojoin/mongocollection.py - About 55 mins 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 __init__ has 7 arguments (exceeds 4 allowed). Consider refactoring.
Open

    def __init__(self, db_name, collection_name, select_keys=[], where_dict={}, host=None, port=None, mongo_uri=DEFAULT_MONGO_URI):
Severity: Major
Found in mongojoin/mongocollection.py - About 50 mins to fix
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