Godley/Music-Library

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implementation/primaries/ExtractMetadata/classes/DataLayer/querylayer.py

Summary

Maintainability
C
1 day
Test Coverage

File querylayer.py has 348 lines of code (exceeds 250 allowed). Consider refactoring.
Open

from sqlalchemy import create_engine, update
from sqlalchemy.orm import sessionmaker
from sqlalchemy.sql.expression import exists, alias, select, or_

from sqlalchemy import Table, Column, Integer, String, MetaData, \

    QueryLayer has 26 functions (exceeds 20 allowed). Consider refactoring.
    Open

    class QueryLayer(object):
        tables = {}
        join_tables = {"keys": "keys_ins_piece",
                       "clefs": "clefs_ins_piece",
                       "instruments": "clefs_ins_piece",

      Function query_similar_rows has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
      Open

          def query_similar_rows(
                  self,
                  data,
                  match_cols=[],
                  excl_cols=[],
      Severity: Minor
      Found in implementation/primaries/ExtractMetadata/classes/DataLayer/querylayer.py - About 45 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 query_multiple has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
      Open

          def query_multiple(
                  self,
                  data,
                  filter_col="piece.id",
                  table="clefs_ins_piece"):
      Severity: Minor
      Found in implementation/primaries/ExtractMetadata/classes/DataLayer/querylayer.py - About 35 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 order_by has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
      Open

          def order_by(self, data, store_val=None, column="piece.id"):
              result = {}
              for elem in data:
                  if elem[column] not in result:
                      result[elem[column]] = []
      Severity: Minor
      Found in implementation/primaries/ExtractMetadata/classes/DataLayer/querylayer.py - About 25 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

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

      def col_or_none(data, col):
          if len(data) > 0:
              return data[0][col]
      implementation/primaries/ExtractMetadata/classes/MusicManager.py on lines 23..25

      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 36.

      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

      Line too long (81 > 79 characters)
      Open

              "keys": [{"name": "E double flat major", "fifths": -10, "mode": "major"},

      Limit all lines to a maximum of 79 characters.

      There are still many devices around that are limited to 80 character
      lines; plus, limiting windows to 80 characters makes it possible to
      have several windows side-by-side.  The default wrapping on such
      devices looks ugly.  Therefore, please limit all lines to a maximum
      of 79 characters. For flowing long blocks of text (docstrings or
      comments), limiting the length to 72 characters is recommended.
      
      Reports error E501.

      Line too long (80 > 79 characters)
      Open

                       {"name": "B double flat major", "fifths": -9, "mode": "major"},

      Limit all lines to a maximum of 79 characters.

      There are still many devices around that are limited to 80 character
      lines; plus, limiting windows to 80 characters makes it possible to
      have several windows side-by-side.  The default wrapping on such
      devices looks ugly.  Therefore, please limit all lines to a maximum
      of 79 characters. For flowing long blocks of text (docstrings or
      comments), limiting the length to 72 characters is recommended.
      
      Reports error E501.

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