Class has too many lines. [118/100] Open
class ServicesController < ApplicationController
include ServiceRoles
before_action :authenticate_admin!
before_action :set_service,
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- Exclude checks
This cop checks if the length a class exceeds some maximum value. Comment lines can optionally be ignored. The maximum allowed length is configurable.
Method has too many lines. [12/10] Open
def service_params
interface_types = params[:service][:interface_types]
permitted_params = params.require(:service).permit(
:role,
:description,
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- Exclude checks
This cop checks if the length of a method exceeds some maximum value. Comment lines can optionally be ignored. The maximum allowed length is configurable.
Method new_service_flash_text
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
def new_service_flash_text(uri)
if @service
@service.validate
url_error = @service.errors.details[:url].first
flash_text = I18n.t('services.searching.already-taken-url')
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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
Similar blocks of code found in 2 locations. Consider refactoring. Open
def create
@service = Service.new(converted_attributes)
if @service.save
redirect_to services_url,
notice: I18n.t('services.create.success')
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Duplicated Code
Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:
Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.
When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).
Tuning
This issue has a mass of 26.
We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.
The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.
If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.
See codeclimate-duplication
's documentation for more information about tuning the mass threshold in your .codeclimate.yml
.
Refactorings
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Inconsistent indentation detected. Open
def error_redirect_to_edit_service_path
flash[:error] = I18n.t('services.refresh.error')
redirect_to edit_service_path(@service)
end
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- Exclude checks
This cops checks for inconsistent indentation.
Example:
class A
def test
puts 'hello'
puts 'world'
end
end
Use &&
instead of and
. Open
return service_params unless interface_type_ids and interface_type_ids.any?
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- Exclude checks
This cop checks for uses of and
and or
, and suggests using &&
and
|| instead
. It can be configured to check only in conditions, or in
all contexts.
Example: EnforcedStyle: always (default)
# bad
foo.save and return
# bad
if foo and bar
end
# good
foo.save && return
# good
if foo && bar
end
Example: EnforcedStyle: conditionals
# bad
if foo and bar
end
# good
foo.save && return
# good
foo.save and return
# good
if foo && bar
end
Put empty method definitions on a single line. Open
def show
end
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- Exclude checks
This cop checks for the formatting of empty method definitions.
By default it enforces empty method definitions to go on a single
line (compact style), but it can be configured to enforce the end
to go on its own line (expanded style).
Note: A method definition is not considered empty if it contains comments.
Example: EnforcedStyle: compact (default)
# bad
def foo(bar)
end
def self.foo(bar)
end
# good
def foo(bar); end
def foo(bar)
# baz
end
def self.foo(bar); end
Example: EnforcedStyle: expanded
# bad
def foo(bar); end
def self.foo(bar); end
# good
def foo(bar)
end
def self.foo(bar)
end
Inconsistent indentation detected. Open
def converted_attributes
interface_type_ids = service_params[:interface_types]
return service_params unless interface_type_ids and interface_type_ids.any?
converted_params = service_params
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- Exclude checks
This cops checks for inconsistent indentation.
Example:
class A
def test
puts 'hello'
puts 'world'
end
end
Missing top-level class documentation comment. Open
class ServicesController < ApplicationController
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- Exclude checks
This cop checks for missing top-level documentation of classes and modules. Classes with no body are exempt from the check and so are namespace modules - modules that have nothing in their bodies except classes, other modules, or constant definitions.
The documentation requirement is annulled if the class or module has a "#:nodoc:" comment next to it. Likewise, "#:nodoc: all" does the same for all its children.
Example:
# bad
class Person
# ...
end
# good
# Description/Explanation of Person class
class Person
# ...
end
Line is too long. [88/80] Open
# Never trust parameters from the scary internet, only allow the white list through.
- Exclude checks
Line is too long. [81/80] Open
return service_params unless interface_type_ids and interface_type_ids.any?
- Exclude checks
Inconsistent indentation detected. Open
def service_params
interface_types = params[:service][:interface_types]
permitted_params = params.require(:service).permit(
:role,
:description,
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- Exclude checks
This cops checks for inconsistent indentation.
Example:
class A
def test
puts 'hello'
puts 'world'
end
end
Keep a blank line before and after private
. Open
private
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- Exclude checks
Access modifiers should be surrounded by blank lines.
Example:
# bad
class Foo
def bar; end
private
def baz; end
end
# good
class Foo
def bar; end
private
def baz; end
end
Inconsistent indentation detected. Open
def new_service_flash_text(uri)
if @service
@service.validate
url_error = @service.errors.details[:url].first
flash_text = I18n.t('services.searching.already-taken-url')
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- Exclude checks
This cops checks for inconsistent indentation.
Example:
class A
def test
puts 'hello'
puts 'world'
end
end
Put empty method definitions on a single line. Open
def edit
end
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- Exclude checks
This cop checks for the formatting of empty method definitions.
By default it enforces empty method definitions to go on a single
line (compact style), but it can be configured to enforce the end
to go on its own line (expanded style).
Note: A method definition is not considered empty if it contains comments.
Example: EnforcedStyle: compact (default)
# bad
def foo(bar)
end
def self.foo(bar)
end
# good
def foo(bar); end
def foo(bar)
# baz
end
def self.foo(bar); end
Example: EnforcedStyle: expanded
# bad
def foo(bar); end
def self.foo(bar); end
# good
def foo(bar)
end
def self.foo(bar)
end
Inconsistent indentation detected. Open
def set_service
@service = Service.find(params[:id])
end
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- Exclude checks
This cops checks for inconsistent indentation.
Example:
class A
def test
puts 'hello'
puts 'world'
end
end
Line is too long. [98/80] Open
raise ActionController::RoutingError.new('Not Found') unless Service.roles.keys.include?(role)
- Exclude checks
Provide an exception class and message as arguments to raise
. Open
raise ActionController::RoutingError.new('Not Found') unless Service.roles.keys.include?(role)
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- Exclude checks
This cop checks the args passed to fail
and raise
. For exploded
style (default), it recommends passing the exception class and message
to raise
, rather than construct an instance of the error. It will
still allow passing just a message, or the construction of an error
with more than one argument.
The exploded style works identically, but with the addition that it will also suggest constructing error objects when the exception is passed multiple arguments.
Example: EnforcedStyle: exploded (default)
# bad
raise StandardError.new("message")
# good
raise StandardError, "message"
fail "message"
raise MyCustomError.new(arg1, arg2, arg3)
raise MyKwArgError.new(key1: val1, key2: val2)
Example: EnforcedStyle: compact
# bad
raise StandardError, "message"
raise RuntimeError, arg1, arg2, arg3
# good
raise StandardError.new("message")
raise MyCustomError.new(arg1, arg2, arg3)
fail "message"
Use %i
or %I
for an array of symbols. Open
only: [
:check_connectivity,
:destroy,
:edit,
:refresh,
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- Exclude checks
This cop can check for array literals made up of symbols that are not using the %i() syntax.
Alternatively, it checks for symbol arrays using the %i() syntax on projects which do not want to use that syntax.
Configuration option: MinSize
If set, arrays with fewer elements than this value will not trigger the
cop. For example, a MinSize of
3` will not enforce a style on an array
of 2 or fewer elements.
Example: EnforcedStyle: percent (default)
# good
%i[foo bar baz]
# bad
[:foo, :bar, :baz]
Example: EnforcedStyle: brackets
# good
[:foo, :bar, :baz]
# bad
%i[foo bar baz]
Avoid rescuing without specifying an error class. Open
rescue
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- Exclude checks
This cop checks for rescuing StandardError
. There are two supported
styles implicit
and explicit
. This cop will not register an offense
if any error other than StandardError
is specified.
Example: EnforcedStyle: implicit
# `implicit` will enforce using `rescue` instead of
# `rescue StandardError`.
# bad
begin
foo
rescue StandardError
bar
end
# good
begin
foo
rescue
bar
end
# good
begin
foo
rescue OtherError
bar
end
# good
begin
foo
rescue StandardError, SecurityError
bar
end
Example: EnforcedStyle: explicit (default)
# `explicit` will enforce using `rescue StandardError`
# instead of `rescue`.
# bad
begin
foo
rescue
bar
end
# good
begin
foo
rescue StandardError
bar
end
# good
begin
foo
rescue OtherError
bar
end
# good
begin
foo
rescue StandardError, SecurityError
bar
end