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Use def with parentheses when there are parameters.
Open

    def self.[] name
Severity: Minor
Found in lib/paperclip/interpolations.rb by rubocop

This cops checks for parentheses around the arguments in method definitions. Both instance and class/singleton methods are checked.

Example: EnforcedStyle: require_parentheses (default)

# The `require_parentheses` style requires method definitions
# to always use parentheses

# bad
def bar num1, num2
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

# good
def bar(num1, num2)
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

Example: EnforcedStyle: requirenoparentheses

# The `require_no_parentheses` style requires method definitions
# to never use parentheses

# bad
def bar(num1, num2)
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

# good
def bar num1, num2
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

Example: EnforcedStyle: requirenoparenthesesexceptmultiline

# The `require_no_parentheses_except_multiline` style prefers no
# parantheses when method definition arguments fit on single line,
# but prefers parantheses when arguments span multiple lines.

# bad
def bar(num1, num2)
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

# good
def bar num1, num2
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

Use def with parentheses when there are parameters.
Open

    def filename attachment, style_name
Severity: Minor
Found in lib/paperclip/interpolations.rb by rubocop

This cops checks for parentheses around the arguments in method definitions. Both instance and class/singleton methods are checked.

Example: EnforcedStyle: require_parentheses (default)

# The `require_parentheses` style requires method definitions
# to always use parentheses

# bad
def bar num1, num2
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

# good
def bar(num1, num2)
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

Example: EnforcedStyle: requirenoparentheses

# The `require_no_parentheses` style requires method definitions
# to never use parentheses

# bad
def bar(num1, num2)
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

# good
def bar num1, num2
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

Example: EnforcedStyle: requirenoparenthesesexceptmultiline

# The `require_no_parentheses_except_multiline` style prefers no
# parantheses when method definition arguments fit on single line,
# but prefers parantheses when arguments span multiple lines.

# bad
def bar(num1, num2)
  num1 + num2
end

def foo descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name
  do_something
end

# good
def bar num1, num2
  num1 + num2
end

def foo(descriptive_var_name,
        another_descriptive_var_name,
        last_descriptive_var_name)
  do_something
end

Line is too long. [83/80]
Open

    class AttachmentSizeValidator < ActiveModel::Validations::NumericalityValidator
Severity: Minor
Found in lib/paperclip/validators/attachment_size_validator.rb by rubocop

Line is too long. [88/80]
Open

        unless (AVAILABLE_CHECKS + [:in]).any? { |argument| options.has_key?(argument) }
Severity: Minor
Found in lib/paperclip/validators/attachment_size_validator.rb by rubocop

Use the new Ruby 1.9 hash syntax.
Open

        @url_generator.for(style_name, default_options.merge(:timestamp => options))
Severity: Minor
Found in lib/paperclip/attachment.rb by rubocop

This cop checks hash literal syntax.

It can enforce either the use of the class hash rocket syntax or the use of the newer Ruby 1.9 syntax (when applicable).

A separate offense is registered for each problematic pair.

The supported styles are:

  • ruby19 - forces use of the 1.9 syntax (e.g. {a: 1}) when hashes have all symbols for keys
  • hash_rockets - forces use of hash rockets for all hashes
  • nomixedkeys - simply checks for hashes with mixed syntaxes
  • ruby19nomixed_keys - forces use of ruby 1.9 syntax and forbids mixed syntax hashes

Example: EnforcedStyle: ruby19 (default)

# bad
{:a => 2}
{b: 1, :c => 2}

# good
{a: 2, b: 1}
{:c => 2, 'd' => 2} # acceptable since 'd' isn't a symbol
{d: 1, 'e' => 2} # technically not forbidden

Example: EnforcedStyle: hash_rockets

# bad
{a: 1, b: 2}
{c: 1, 'd' => 5}

# good
{:a => 1, :b => 2}

Example: EnforcedStyle: nomixedkeys

# bad
{:a => 1, b: 2}
{c: 1, 'd' => 2}

# good
{:a => 1, :b => 2}
{c: 1, d: 2}

Example: EnforcedStyle: ruby19nomixed_keys

# bad
{:a => 1, :b => 2}
{c: 2, 'd' => 3} # should just use hash rockets

# good
{a: 1, b: 2}
{:c => 3, 'd' => 4}

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

require 'active_support/core_ext/string/inflections'
Severity: Minor
Found in lib/paperclip/attachment.rb by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Line is too long. [93/80]
Open

    # Supplies the hash of options that processors expect to receive as their second argument
Severity: Minor
Found in lib/paperclip/style.rb by rubocop

Extra blank line detected.
Open


    def supplied_content_type
Severity: Minor
Found in lib/paperclip/media_type_spoof_detector.rb by rubocop

This cops checks for two or more consecutive blank lines.

Example:

# bad - It has two empty lines.
some_method
# one empty line
# two empty lines
some_method

# good
some_method
# one empty line
some_method

Use File.size(@filepath).zero? instead of File.size(@filepath) == 0.
Open

      File.exist?(@filepath) && File.size(@filepath) == 0
Severity: Minor
Found in lib/paperclip/content_type_detector.rb by rubocop

This cop checks for usage of comparison operators (==, >, <) to test numbers as zero, positive, or negative. These can be replaced by their respective predicate methods. The cop can also be configured to do the reverse.

The cop disregards #nonzero? as it its value is truthy or falsey, but not true and false, and thus not always interchangeable with != 0.

The cop ignores comparisons to global variables, since they are often populated with objects which can be compared with integers, but are not themselves Interger polymorphic.

Example: EnforcedStyle: predicate (default)

# bad

foo == 0
0 > foo
bar.baz > 0

# good

foo.zero?
foo.negative?
bar.baz.positive?

Example: EnforcedStyle: comparison

# bad

foo.zero?
foo.negative?
bar.baz.positive?

# good

foo == 0
0 > foo
bar.baz > 0

Unused method argument - style_name. If it's necessary, use _ or _style_name as an argument name to indicate that it won't be used.
Open

    def timestamp attachment, style_name
Severity: Minor
Found in lib/paperclip/interpolations.rb by rubocop

This cop checks for unused method arguments.

Example:

# bad

def some_method(used, unused, _unused_but_allowed)
  puts used
end

Example:

# good

def some_method(used, _unused, _unused_but_allowed)
  puts used
end

Unused method argument - style_name. If it's necessary, use _ or _style_name as an argument name to indicate that it won't be used.
Open

    def updated_at attachment, style_name
Severity: Minor
Found in lib/paperclip/interpolations.rb by rubocop

This cop checks for unused method arguments.

Example:

# bad

def some_method(used, unused, _unused_but_allowed)
  puts used
end

Example:

# good

def some_method(used, _unused, _unused_but_allowed)
  puts used
end

Unused method argument - attachment. If it's necessary, use _ or _attachment as an argument name to indicate that it won't be used. You can also write as rails_root(*) if you want the method to accept any arguments but don't care about them.
Open

    def rails_root attachment, style_name
Severity: Minor
Found in lib/paperclip/interpolations.rb by rubocop

This cop checks for unused method arguments.

Example:

# bad

def some_method(used, unused, _unused_but_allowed)
  puts used
end

Example:

# good

def some_method(used, _unused, _unused_but_allowed)
  puts used
end

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

require 'paperclip/matchers/have_attached_file_matcher'
Severity: Minor
Found in lib/paperclip/matchers.rb by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

require 'paperclip/matchers/validate_attachment_content_type_matcher'
Severity: Minor
Found in lib/paperclip/matchers.rb by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Line is too long. [104/80]
Open

          raise ArgumentError, "You must pass either :less_than, :greater_than, or :in to the validator"
Severity: Minor
Found in lib/paperclip/validators/attachment_size_validator.rb by rubocop

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

        record.errors.add attribute, :invalid, options.merge(:types => types.join(', '))
Severity: Minor
Found in lib/paperclip/validators/attachment_content_type_validator.rb by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Line is too long. [81/80]
Open

      # * +unless+: Same as +if+ but validates if lambda or method returns false.
Severity: Minor
Found in lib/paperclip/validators/attachment_presence_validator.rb by rubocop

Avoid comma after the last parameter of a method call.
Open

        local_options,
Severity: Minor
Found in lib/paperclip/processor.rb by rubocop

This cop checks for trailing comma in argument lists.

Example: EnforcedStyleForMultiline: consistent_comma

# bad
method(1, 2,)

# good
method(
  1, 2,
  3,
)

# good
method(
  1,
  2,
)

Example: EnforcedStyleForMultiline: comma

# bad
method(1, 2,)

# good
method(
  1,
  2,
)

Example: EnforcedStyleForMultiline: no_comma (default)

# bad
method(1, 2,)

# good
method(
  1,
  2
)

Use the new Ruby 1.9 hash syntax.
Open

  task :refresh => ["paperclip:refresh:metadata", "paperclip:refresh:thumbnails"]
Severity: Minor
Found in lib/tasks/paperclip.rake by rubocop

This cop checks hash literal syntax.

It can enforce either the use of the class hash rocket syntax or the use of the newer Ruby 1.9 syntax (when applicable).

A separate offense is registered for each problematic pair.

The supported styles are:

  • ruby19 - forces use of the 1.9 syntax (e.g. {a: 1}) when hashes have all symbols for keys
  • hash_rockets - forces use of hash rockets for all hashes
  • nomixedkeys - simply checks for hashes with mixed syntaxes
  • ruby19nomixed_keys - forces use of ruby 1.9 syntax and forbids mixed syntax hashes

Example: EnforcedStyle: ruby19 (default)

# bad
{:a => 2}
{b: 1, :c => 2}

# good
{a: 2, b: 1}
{:c => 2, 'd' => 2} # acceptable since 'd' isn't a symbol
{d: 1, 'e' => 2} # technically not forbidden

Example: EnforcedStyle: hash_rockets

# bad
{a: 1, b: 2}
{c: 1, 'd' => 5}

# good
{:a => 1, :b => 2}

Example: EnforcedStyle: nomixedkeys

# bad
{:a => 1, b: 2}
{c: 1, 'd' => 2}

# good
{:a => 1, :b => 2}
{c: 1, d: 2}

Example: EnforcedStyle: ruby19nomixed_keys

# bad
{:a => 1, :b => 2}
{c: 2, 'd' => 3} # should just use hash rockets

# good
{a: 1, b: 2}
{:c => 3, 'd' => 4}

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

      styles = (ENV['STYLES'] || ENV['styles'] || '').split(',').map(&:to_sym)
Severity: Minor
Found in lib/tasks/paperclip.rake by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"
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