ManageIQ/manageiq-ui-classic

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app/controllers/configuration_controller.rb

Summary

Maintainability
D
2 days
Test Coverage
F
21%

Method timeprofile_set_days_hours has a Cognitive Complexity of 25 (exceeds 5 allowed). Consider refactoring.
Open

  def timeprofile_set_days_hours(_timeprofile = @timeprofile)
    @timeprofile_details = {}
    @timeprofiles.each do |timeprofile|
      @timeprofile_details[timeprofile.description] = {}
      profile_key = timeprofile.profile[:days].nil? ? "days" : :days
Severity: Minor
Found in app/controllers/configuration_controller.rb - About 3 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

Class ConfigurationController has 28 methods (exceeds 20 allowed). Consider refactoring.
Open

class ConfigurationController < ApplicationController
  include Mixins::StartUrl
  include Mixins::GenericSessionMixin
  include Mixins::BreadcrumbsMixin

Severity: Minor
Found in app/controllers/configuration_controller.rb - About 3 hrs to fix

Cyclomatic complexity for timeprofile_set_days_hours is too high. [14/11]
Open

  def timeprofile_set_days_hours(_timeprofile = @timeprofile)
    @timeprofile_details = {}
    @timeprofiles.each do |timeprofile|
      @timeprofile_details[timeprofile.description] = {}
      profile_key = timeprofile.profile[:days].nil? ? "days" : :days

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 timeprofile_delete has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
Open

  def timeprofile_delete
    assert_privileges("my_settings_time_profiles")
    timeprofiles = []
    unless params[:id] # showing a list, scan all selected timeprofiles
      timeprofiles = find_checked_items
Severity: Minor
Found in app/controllers/configuration_controller.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 timeprofile_set_days_hours has 33 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def timeprofile_set_days_hours(_timeprofile = @timeprofile)
    @timeprofile_details = {}
    @timeprofiles.each do |timeprofile|
      @timeprofile_details[timeprofile.description] = {}
      profile_key = timeprofile.profile[:days].nil? ? "days" : :days
Severity: Minor
Found in app/controllers/configuration_controller.rb - About 1 hr to fix

Method set_form_vars has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def set_form_vars
    case @tabform
    when 'ui_1'
      @edit = {
        :current => {},
Severity: Minor
Found in app/controllers/configuration_controller.rb - About 1 hr to fix

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

  def index
    assert_privileges('my_settings_view')
    @breadcrumbs = []
    active_tab = nil
    if role_allows?(:feature => "my_settings_visuals")
Severity: Minor
Found in app/controllers/configuration_controller.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 button has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

  def button
    @refresh_div = "main_div" # Default div for button.rjs to refresh
    timeprofile_delete if params[:pressed] == "tp_delete"
    copy_record if params[:pressed] == "tp_copy"
    edit_record if params[:pressed] == "tp_edit"
Severity: Minor
Found in app/controllers/configuration_controller.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 timeprofile_delete has 26 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def timeprofile_delete
    assert_privileges("my_settings_time_profiles")
    timeprofiles = []
    unless params[:id] # showing a list, scan all selected timeprofiles
      timeprofiles = find_checked_items
Severity: Minor
Found in app/controllers/configuration_controller.rb - About 1 hr to fix

Method filters_field_changed has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  def filters_field_changed
    assert_privileges('my_settings_default_filters')
    return unless load_edit("config_edit__ui3", "configuration")

    id = params[:id].split('-').last.to_i
Severity: Minor
Found in app/controllers/configuration_controller.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 update has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  def update
    assert_privileges('my_settings_default_filters')
    tab_vars(@tabform.split('_').last)
    if params["save"]
      case @tabform
Severity: Minor
Found in app/controllers/configuration_controller.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

Remove unnecessary existence check File.exist?.
Open

  Dir.mkdir(logo_dir) unless File.exist?(logo_dir)

Checks for non-atomic file operation. And then replace it with a nearly equivalent and atomic method.

These can cause problems that are difficult to reproduce, especially in cases of frequent file operations in parallel, such as test runs with parallel_rspec.

For examples: creating a directory if there is none, has the following problems

An exception occurs when the directory didn't exist at the time of exist?, but someone else created it before mkdir was executed.

Subsequent processes are executed without the directory that should be there when the directory existed at the time of exist?, but someone else deleted it shortly afterwards.

Safety:

This cop is unsafe, because autocorrection change to atomic processing. The atomic processing of the replacement destination is not guaranteed to be strictly equivalent to that before the replacement.

Example:

# bad - race condition with another process may result in an error in `mkdir`
unless Dir.exist?(path)
  FileUtils.mkdir(path)
end

# good - atomic and idempotent creation
FileUtils.mkdir_p(path)

# bad - race condition with another process may result in an error in `remove`
if File.exist?(path)
  FileUtils.remove(path)
end

# good - atomic and idempotent removal
FileUtils.rm_f(path)

Use atomic file operation method FileUtils.mkdir_p.
Open

  Dir.mkdir(logo_dir) unless File.exist?(logo_dir)

Checks for non-atomic file operation. And then replace it with a nearly equivalent and atomic method.

These can cause problems that are difficult to reproduce, especially in cases of frequent file operations in parallel, such as test runs with parallel_rspec.

For examples: creating a directory if there is none, has the following problems

An exception occurs when the directory didn't exist at the time of exist?, but someone else created it before mkdir was executed.

Subsequent processes are executed without the directory that should be there when the directory existed at the time of exist?, but someone else deleted it shortly afterwards.

Safety:

This cop is unsafe, because autocorrection change to atomic processing. The atomic processing of the replacement destination is not guaranteed to be strictly equivalent to that before the replacement.

Example:

# bad - race condition with another process may result in an error in `mkdir`
unless Dir.exist?(path)
  FileUtils.mkdir(path)
end

# good - atomic and idempotent creation
FileUtils.mkdir_p(path)

# bad - race condition with another process may result in an error in `remove`
if File.exist?(path)
  FileUtils.remove(path)
end

# good - atomic and idempotent removal
FileUtils.rm_f(path)

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