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activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb

Summary

Maintainability
D
1 day
Test Coverage

Method indexes has a Cognitive Complexity of 50 (exceeds 5 allowed). Consider refactoring.
Open

        def indexes(table_name)
          indexes = []
          current_index = nil
          execute_and_free("SHOW KEYS FROM #{quote_table_name(table_name)}", "SCHEMA") do |result|
            each_hash(result) do |row|
Severity: Minor
Found in activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb - About 7 hrs 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 indexes has 60 lines of code (exceeds 25 allowed). Consider refactoring.
Open

        def indexes(table_name)
          indexes = []
          current_index = nil
          execute_and_free("SHOW KEYS FROM #{quote_table_name(table_name)}", "SCHEMA") do |result|
            each_hash(result) do |row|
Severity: Major
Found in activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb - About 2 hrs to fix

    File schema_statements.rb has 254 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    module ActiveRecord
  module ConnectionAdapters
    module MySQL
      module SchemaStatements # :nodoc:
        # Returns an array of indexes for the given table.
    Severity: Minor
    Found in activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb - About 2 hrs to fix

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

                def new_column_from_field(table_name, field, _definitions)
            field_name = field.fetch(:Field)
            type_metadata = fetch_type_metadata(field[:Type], field[:Extra])
            default, default_function = field[:Default], nil
      Severity: Minor
      Found in activerecord/lib/active_record/connection_adapters/mysql/schema_statements.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 type_to_sql has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
      Open

              def type_to_sql(type, limit: nil, precision: nil, scale: nil, size: limit_to_size(limit, type), unsigned: nil, **)
          sql =
            case type.to_s
            when "integer"
              integer_to_sql(limit)
      Severity: Minor
      Found in activerecord/lib/active_record/connection_adapters/mysql/schema_statements.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

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