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app/controllers/vm_common.rb

Summary

Maintainability
F
1 wk
Test Coverage
D
60%

File vm_common.rb has 1172 lines of code (exceeds 400 allowed). Consider refactoring.
Open

module VmCommon
  extend ActiveSupport::Concern
  include ActionView::Helpers::JavaScriptHelper
  include Mixins::ChargebackPreviewMixin
  include ProvisionCustomizeHelper
Severity: Major
Found in app/controllers/vm_common.rb - About 2 days to fix

Method replace_right_cell has a Cognitive Complexity of 91 (exceeds 5 allowed). Consider refactoring.
Open

  def replace_right_cell(options = {})
    if params[:action] == 'x_history'
      # Making selected checkboxes array empty when compare cancel is clicked
      params[:miq_grid_checks] = []
    end
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 day 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 show has a Cognitive Complexity of 59 (exceeds 5 allowed). Consider refactoring.
Open

  def show(id = nil)
    @flash_array = [] if params[:display] && params[:display] != "snapshot_info"
    @sb[:action] = params[:display]

    return if perfmenu_click?
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 day 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

Cyclomatic complexity for replace_right_cell is too high. [60/11]
Open

  def replace_right_cell(options = {})
    if params[:action] == 'x_history'
      # Making selected checkboxes array empty when compare cancel is clicked
      params[:miq_grid_checks] = []
    end
Severity: Minor
Found in app/controllers/vm_common.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 list_child_vms has a Cognitive Complexity of 46 (exceeds 5 allowed). Consider refactoring.
Open

  def list_child_vms(model, node_id, title, show_list)
    options = {
      :model       => model,
      :named_scope => scopes_for_role,
    }
Severity: Minor
Found in app/controllers/vm_common.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 set_right_cell_vars has 172 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def set_right_cell_vars(options = {})
    name = @record.try(:name).to_s
    table = request.parameters["controller"]
    case @sb[:action]
    when "attach"
Severity: Major
Found in app/controllers/vm_common.rb - About 6 hrs to fix

Method replace_right_cell has 148 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def replace_right_cell(options = {})
    if params[:action] == 'x_history'
      # Making selected checkboxes array empty when compare cancel is clicked
      params[:miq_grid_checks] = []
    end
Severity: Major
Found in app/controllers/vm_common.rb - About 5 hrs to fix

Cyclomatic complexity for show is too high. [43/11]
Open

  def show(id = nil)
    @flash_array = [] if params[:display] && params[:display] != "snapshot_info"
    @sb[:action] = params[:display]

    return if perfmenu_click?
Severity: Minor
Found in app/controllers/vm_common.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

Cyclomatic complexity for set_right_cell_vars is too high. [40/11]
Open

  def set_right_cell_vars(options = {})
    name = @record.try(:name).to_s
    table = request.parameters["controller"]
    case @sb[:action]
    when "attach"
Severity: Minor
Found in app/controllers/vm_common.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 show has 122 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def show(id = nil)
    @flash_array = [] if params[:display] && params[:display] != "snapshot_info"
    @sb[:action] = params[:display]

    return if perfmenu_click?
Severity: Major
Found in app/controllers/vm_common.rb - About 4 hrs to fix

Method set_right_cell_vars has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.
Open

  def set_right_cell_vars(options = {})
    name = @record.try(:name).to_s
    table = request.parameters["controller"]
    case @sb[:action]
    when "attach"
Severity: Minor
Found in app/controllers/vm_common.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

Cyclomatic complexity for list_child_vms is too high. [25/11]
Open

  def list_child_vms(model, node_id, title, show_list)
    options = {
      :model       => model,
      :named_scope => scopes_for_role,
    }
Severity: Minor
Found in app/controllers/vm_common.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

Cyclomatic complexity for action_type is too high. [24/11]
Open

  def action_type(type, amount)
    case type
    when "advanced_settings"
      n_("Advanced Setting", "Advanced Settings", amount)
    when "disks"
Severity: Minor
Found in app/controllers/vm_common.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 button has a Cognitive Complexity of 22 (exceeds 5 allowed). Consider refactoring.
Open

  def button
    @edit = session[:edit]                                  # Restore @edit for adv search box
    params[:page] = @current_page unless @current_page.nil? # Save current page for list refresh
    @refresh_div = "main_div"                               # Default div for button.rjs to refresh
Severity: Minor
Found in app/controllers/vm_common.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

Cyclomatic complexity for button is too high. [20/11]
Open

  def button
    @edit = session[:edit]                                  # Restore @edit for adv search box
    params[:page] = @current_page unless @current_page.nil? # Save current page for list refresh
    @refresh_div = "main_div"                               # Default div for button.rjs to refresh
Severity: Minor
Found in app/controllers/vm_common.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 get_node_info has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
Open

  def get_node_info(treenodeid, show_list = true)
    # resetting action that was stored during edit to determine what is being edited
    @sb[:action] = nil

    @nodetype, node_id =
Severity: Minor
Found in app/controllers/vm_common.rb - About 2 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 list_child_vms has 57 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def list_child_vms(model, node_id, title, show_list)
    options = {
      :model       => model,
      :named_scope => scopes_for_role,
    }
Severity: Major
Found in app/controllers/vm_common.rb - About 2 hrs to fix

Method tree_select has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.
Open

  def tree_select
    assert_accordion_and_tree_privileges(x_active_tree)
    params[:miq_grid_checks] = []
    @explorer = true
    @lastaction = "explorer"
Severity: Minor
Found in app/controllers/vm_common.rb - About 2 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

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

  def tree_select
    assert_accordion_and_tree_privileges(x_active_tree)
    params[:miq_grid_checks] = []
    @explorer = true
    @lastaction = "explorer"
Severity: Minor
Found in app/controllers/vm_common.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 action_type has 48 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def action_type(type, amount)
    case type
    when "advanced_settings"
      n_("Advanced Setting", "Advanced Settings", amount)
    when "disks"
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 hr to fix

Method button has 46 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def button
    @edit = session[:edit]                                  # Restore @edit for adv search box
    params[:page] = @current_page unless @current_page.nil? # Save current page for list refresh
    @refresh_div = "main_div"                               # Default div for button.rjs to refresh
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 hr to fix

Cyclomatic complexity for parent_folder_id is too high. [12/11]
Open

  def parent_folder_id(vm)
    if vm.orphaned
      "xx-orph"
    elsif vm.archived
      "xx-arch"
Severity: Minor
Found in app/controllers/vm_common.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 parent_folder_id has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

  def parent_folder_id(vm)
    if vm.orphaned
      "xx-orph"
    elsif vm.archived
      "xx-arch"
Severity: Minor
Found in app/controllers/vm_common.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 tree_select has 31 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def tree_select
    assert_accordion_and_tree_privileges(x_active_tree)
    params[:miq_grid_checks] = []
    @explorer = true
    @lastaction = "explorer"
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 hr to fix

Method get_node_info has 30 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def get_node_info(treenodeid, show_list = true)
    # resetting action that was stored during edit to determine what is being edited
    @sb[:action] = nil

    @nodetype, node_id =
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 hr to fix

Method policies has 30 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def policies
    @vm = @record = identify_record(params[:id], VmOrTemplate)
    @lastaction = "rsop"
    @showtype = "policies"
    drop_breadcrumb(:name => _("Policy Simulation Details for %{name}") % {:name => @record.name},
Severity: Minor
Found in app/controllers/vm_common.rb - About 1 hr to fix

Method scan_histories has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

  def scan_histories
    @vm = @record = identify_record(params[:id], VmOrTemplate)
    @explorer = true if request.xml_http_request? # Ajax request means in explorer
    @scan_history = ScanHistory.find_by(:vm_or_template_id => @record.id)
    if @scan_history.nil?
Severity: Minor
Found in app/controllers/vm_common.rb - 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

Avoid deeply nested control flow statements.
Open

        process_show_list(options) if show_list
Severity: Major
Found in app/controllers/vm_common.rb - About 45 mins to fix

Avoid deeply nested control flow statements.
Open

        @right_cell_text = if model
                             _("Archived %{models}") % {:models => ui_lookup(:models => model)}
                           else
                             _("Archived VMs & Templates")
                           end
Severity: Major
Found in app/controllers/vm_common.rb - About 45 mins to fix

Method scan_history has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
Open

  def scan_history
    @vm = @record = identify_record(params[:id], VmOrTemplate)
    @scan_history = ScanHistory.find_by(:vm_or_template_id => @record.id)
    @showtype = "scan_history"
    @lastaction = "scan_history"
Severity: Minor
Found in app/controllers/vm_common.rb - 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

Avoid too many return statements within this method.
Open

        return
Severity: Major
Found in app/controllers/vm_common.rb - About 30 mins to fix

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

  def policies
    @vm = @record = identify_record(params[:id], VmOrTemplate)
    @lastaction = "rsop"
    @showtype = "policies"
    drop_breadcrumb(:name => _("Policy Simulation Details for %{name}") % {:name => @record.name},
Severity: Minor
Found in app/controllers/vm_common.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 scopes_for_role has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

  def scopes_for_role
    named_scope = []
    named_scope << :not_orphaned unless role_allows?(:feature => 'vm_show_list_orphaned')
    named_scope << :not_archived unless role_allows?(:feature => 'vm_show_list_archived')
    named_scope << :not_retired unless role_allows?(:feature => 'vm_show_list_retired')
Severity: Minor
Found in app/controllers/vm_common.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 edit has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

  def edit
    @record = find_record_with_rbac(VmOrTemplate, params[:id]) # Set the VM object
    
    # reset @explorer if coming from explorer views
    @edit ||= {}
Severity: Minor
Found in app/controllers/vm_common.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 vm_rename has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

  def vm_rename
    @record = find_record_with_rbac(VmOrTemplate, params[:miq_grid_checks] || params[:id])
    unless @record.supports?(:rename)
      add_flash(_("Renaming selected VM \"%{name}\" is not supported") % {:name => @record.name}, :error)
      if @explorer
Severity: Minor
Found in app/controllers/vm_common.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

Avoid elsif branches without a body.
Open

    elsif @lastaction == "show_list"
    else
      @refresh_partial = "layouts/flash_msg"
      @refresh_div = "flash_msg_div"
Severity: Minor
Found in app/controllers/vm_common.rb by rubocop

Checks for the presence of if, elsif and unless branches without a body.

NOTE: empty else branches are handled by Style/EmptyElse.

Safety:

Autocorrection for this cop is not safe. The conditions for empty branches that the autocorrection removes may have side effects, or the logic in subsequent branches may change due to the removal of a previous condition.

Example:

# bad
if condition
end

# bad
unless condition
end

# bad
if condition
  do_something
elsif other_condition
end

# good
if condition
  do_something
end

# good
unless condition
  do_something
end

# good
if condition
  do_something
elsif other_condition
  do_something_else
end

Example: AllowComments: true (default)

# good
if condition
  do_something
elsif other_condition
  # noop
end

Example: AllowComments: false

# bad
if condition
  do_something
elsif other_condition
  # noop
end

Duplicate branch body detected.
Open

    elsif @lastaction == "show" && ["config"].include?(@showtype)
      @refresh_partial = @showtype
    elsif @lastaction == "show_list"
    else
      @refresh_partial = "layouts/flash_msg"
Severity: Minor
Found in app/controllers/vm_common.rb by rubocop

Checks that there are no repeated bodies within if/unless, case-when, case-in and rescue constructs.

With IgnoreLiteralBranches: true, branches are not registered as offenses if they return a basic literal value (string, symbol, integer, float, rational, complex, true, false, or nil), or return an array, hash, regexp or range that only contains one of the above basic literal values.

With IgnoreConstantBranches: true, branches are not registered as offenses if they return a constant value.

Example:

# bad
if foo
  do_foo
  do_something_else
elsif bar
  do_foo
  do_something_else
end

# good
if foo || bar
  do_foo
  do_something_else
end

# bad
case x
when foo
  do_foo
when bar
  do_foo
else
  do_something_else
end

# good
case x
when foo, bar
  do_foo
else
  do_something_else
end

# bad
begin
  do_something
rescue FooError
  handle_error
rescue BarError
  handle_error
end

# good
begin
  do_something
rescue FooError, BarError
  handle_error
end

Example: IgnoreLiteralBranches: true

# good
case size
when "small" then 100
when "medium" then 250
when "large" then 1000
else 250
end

Example: IgnoreConstantBranches: true

# good
case size
when "small" then SMALL_SIZE
when "medium" then MEDIUM_SIZE
when "large" then LARGE_SIZE
else MEDIUM_SIZE
end

Duplicate branch body detected.
Open

    elsif vm.cloud && vm.availability_zone_id.nil?
      TreeBuilder.build_node_id(vm.ext_management_system)
    elsif vm.cloud
      TreeBuilder.build_node_id(vm.availability_zone)
    elsif (blue_folder = vm.parent_blue_folder) && !blue_folder.hidden
Severity: Minor
Found in app/controllers/vm_common.rb by rubocop

Checks that there are no repeated bodies within if/unless, case-when, case-in and rescue constructs.

With IgnoreLiteralBranches: true, branches are not registered as offenses if they return a basic literal value (string, symbol, integer, float, rational, complex, true, false, or nil), or return an array, hash, regexp or range that only contains one of the above basic literal values.

With IgnoreConstantBranches: true, branches are not registered as offenses if they return a constant value.

Example:

# bad
if foo
  do_foo
  do_something_else
elsif bar
  do_foo
  do_something_else
end

# good
if foo || bar
  do_foo
  do_something_else
end

# bad
case x
when foo
  do_foo
when bar
  do_foo
else
  do_something_else
end

# good
case x
when foo, bar
  do_foo
else
  do_something_else
end

# bad
begin
  do_something
rescue FooError
  handle_error
rescue BarError
  handle_error
end

# good
begin
  do_something
rescue FooError, BarError
  handle_error
end

Example: IgnoreLiteralBranches: true

# good
case size
when "small" then 100
when "medium" then 250
when "large" then 1000
else 250
end

Example: IgnoreConstantBranches: true

# good
case size
when "small" then SMALL_SIZE
when "medium" then MEDIUM_SIZE
when "large" then LARGE_SIZE
else MEDIUM_SIZE
end

Wrap expressions with varying precedence with parentheses to avoid ambiguity.
Open

        drop_breadcrumb(:name => @record.name + _(" (Compliance History - Last %{number} Checks)") % {:number => count},
Severity: Minor
Found in app/controllers/vm_common.rb by rubocop

Looks for expressions containing multiple binary operators where precedence is ambiguous due to lack of parentheses. For example, in 1 + 2 * 3, the multiplication will happen before the addition, but lexically it appears that the addition will happen first.

The cop does not consider unary operators (ie. !a or -b) or comparison operators (ie. a =~ b) because those are not ambiguous.

NOTE: Ranges are handled by Lint/AmbiguousRange.

Example:

# bad
a + b * c
a || b && c
a ** b + c

# good (different precedence)
a + (b * c)
a || (b && c)
(a ** b) + c

# good (same precedence)
a + b + c
a * b / c % d

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