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app/models/miq_bulk_import.rb

Summary

Maintainability
A
3 hrs
Test Coverage
F
54%

Cyclomatic complexity for upload is too high. [16/11]
Open

  def self.upload(fd, tags, keys)
    _log.info("Uploading CSV file")
    data = fd.read
    raise _("File is empty") if data.empty?
Severity: Minor
Found in app/models/miq_bulk_import.rb by rubocop

Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.

An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.

def each_child_node(*types)               # count begins: 1
  unless block_given?                     # unless: +1
    return to_enum(__method__, *types)

  children.each do |child|                # each{}: +1
    next unless child.is_a?(Node)         # unless: +1

    yield child if types.empty? ||        # if: +1, ||: +1
                   types.include?(child.type)
  end

  self
end                                       # total: 6

Method upload has a Cognitive Complexity of 21 (exceeds 11 allowed). Consider refactoring.
Open

  def self.upload(fd, tags, keys)
    _log.info("Uploading CSV file")
    data = fd.read
    raise _("File is empty") if data.empty?
Severity: Minor
Found in app/models/miq_bulk_import.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 get_sub_key_values has a Cognitive Complexity of 15 (exceeds 11 allowed). Consider refactoring.
Open

  def self.get_sub_key_values(rec, sub_key)
    unless sub_key.include?(".")
      return [] unless rec.respond_to?(sub_key)

      return rec.send(sub_key).downcase
Severity: Minor
Found in app/models/miq_bulk_import.rb - 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

Method find_entry_by_keys has a Cognitive Complexity of 12 (exceeds 11 allowed). Consider refactoring.
Open

  def self.find_entry_by_keys(klass, keys)
    keys2array = keys
    primary_key, primary_key_value = keys2array.shift
    result = klass.where(klass.arel_table[primary_key.to_sym].lower.eq(primary_key_value.downcase))
    return result if result.size <= 1
Severity: Minor
Found in app/models/miq_bulk_import.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

Use filter_map instead.
Open

    current.collect do |c|
      return [] unless c.respond_to?(attr)

      c.send(attr)
    end.compact
Severity: Minor
Found in app/models/miq_bulk_import.rb by rubocop

Use filter_map instead.
Open

      filtered_result = result.collect do |rec|
        rec if get_sub_key_values(rec, sub_key).include?(sub_key_value.downcase)
      end.compact
Severity: Minor
Found in app/models/miq_bulk_import.rb by rubocop

Use filter_map instead.
Open

    verified_tags = tags.collect { |t| t if header.include?(t) }.compact
Severity: Minor
Found in app/models/miq_bulk_import.rb by rubocop

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