neo4jrb/neo4j

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lib/active_graph/core/query.rb

Summary

Maintainability
C
1 day
Test Coverage

Class Query has 32 methods (exceeds 20 allowed). Consider refactoring.
Open

    class Query
      include ActiveGraph::Core::QueryClauses
      include ActiveGraph::Core::QueryFindInBatches
      DEFINED_CLAUSES = {}

Severity: Minor
Found in lib/active_graph/core/query.rb - About 4 hrs to fix

File query.rb has 261 lines of code (exceeds 250 allowed). Consider refactoring.
Open

require 'active_graph/core/query_clauses'
require 'active_graph/core/query_find_in_batches'
require 'active_support/notifications'

module ActiveGraph
Severity: Minor
Found in lib/active_graph/core/query.rb - About 2 hrs to fix

Method generate_partitioning! has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

        def generate_partitioning!
          @partitioning = [[]]

          @clauses.each do |clause|
            if clause.nil? && !fresh_partition?
Severity: Minor
Found in lib/active_graph/core/query.rb - 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

Method match_nodes has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

      def match_nodes(hash, optional_match = false)
        hash.inject(self) do |query, (variable, node_object)|
          neo_id = (node_object.respond_to?(:neo_id) ? node_object.neo_id : node_object)

          match_method = optional_match ? :optional_match : :match
Severity: Minor
Found in lib/active_graph/core/query.rb - 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

Method to_cypher has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

      def to_cypher(options = {})
        join_string = options[:pretty] ? NEWLINE : EMPTY

        cypher_string = partitioned_clauses.map do |clauses|
          clauses_by_class = clauses.group_by(&:class)
Severity: Minor
Found in lib/active_graph/core/query.rb - 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

Shadowing outer local variable - column.
Open

          query.map { |row| columns.map { |column| row[column] } }
Severity: Minor
Found in lib/active_graph/core/query.rb by rubocop

This cop looks for use of the same name as outer local variables for block arguments or block local variables. This is a mimic of the warning "shadowing outer local variable - foo" from ruby -cw.

Example:

# bad

def some_method
  foo = 1

  2.times do |foo| # shadowing outer `foo`
    do_something(foo)
  end
end

Example:

# good

def some_method
  foo = 1

  2.times do |bar|
    do_something(bar)
  end
end

Missing magic comment # frozen_string_literal: true.
Open

require 'active_graph/core/query_clauses'
Severity: Minor
Found in lib/active_graph/core/query.rb by rubocop

This cop is designed to help upgrade to Ruby 3.0. It will add the comment # frozen_string_literal: true to the top of files to enable frozen string literals. Frozen string literals may be default in Ruby 3.0. The comment will be added below a shebang and encoding comment. The frozen string literal comment is only valid in Ruby 2.3+.

Example: EnforcedStyle: when_needed (default)

# The `when_needed` style will add the frozen string literal comment
# to files only when the `TargetRubyVersion` is set to 2.3+.
# bad
module Foo
  # ...
end

# good
# frozen_string_literal: true

module Foo
  # ...
end

Example: EnforcedStyle: always

# The `always` style will always add the frozen string literal comment
# to a file, regardless of the Ruby version or if `freeze` or `<<` are
# called on a string literal.
# bad
module Bar
  # ...
end

# good
# frozen_string_literal: true

module Bar
  # ...
end

Example: EnforcedStyle: never

# The `never` will enforce that the frozen string literal comment does
# not exist in a file.
# bad
# frozen_string_literal: true

module Baz
  # ...
end

# good
module Baz
  # ...
end

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