Assignment Branch Condition size for feedback_response_report is too high. [50.5/15] Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
- Read upRead up
- Exclude checks
This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
Method has too many lines. [36/10] Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
- Read upRead up
- 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 feedback_response_report
has a Cognitive Complexity of 21 (exceeds 5 allowed). Consider refactoring. Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
- Read upRead up
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
Perceived complexity for feedback_response_report is too high. [10/7] Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
- Read upRead up
- Exclude checks
This cop tries to produce a complexity score that's a measure of the
complexity the reader experiences when looking at a method. For that
reason it considers when
nodes as something that doesn't add as much
complexity as an if
or a &&
. Except if it's one of those special
case
/when
constructs where there's no expression after case
. Then
the cop treats it as an if
/elsif
/elsif
... and lets all the when
nodes count. In contrast to the CyclomaticComplexity cop, this cop
considers else
nodes as adding complexity.
Example:
def my_method # 1
if cond # 1
case var # 2 (0.8 + 4 * 0.2, rounded)
when 1 then func_one
when 2 then func_two
when 3 then func_three
when 4..10 then func_other
end
else # 1
do_something until a && b # 2
end # ===
end # 7 complexity points
Assignment Branch Condition size for email is too high. [18.87/15] Open
def email(defn, _participant, assignment)
defn[:body][:type] = 'Author Feedback'
# reviewee is a response, reviewer is a participant
# we need to track back to find the original reviewer on whose work the author comments
response_id_for_original_feedback = reviewed_object_id
- Read upRead up
- Exclude checks
This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
Cyclomatic complexity for feedback_response_report is too high. [8/6] Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
- Read upRead up
- Exclude checks
This cop 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.
Method has too many lines. [11/10] Open
def email(defn, _participant, assignment)
defn[:body][:type] = 'Author Feedback'
# reviewee is a response, reviewer is a participant
# we need to track back to find the original reviewer on whose work the author comments
response_id_for_original_feedback = reviewed_object_id
- Read upRead up
- 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 feedback_response_report
has 36 lines of code (exceeds 25 allowed). Consider refactoring. Open
def self.feedback_response_report(id, _type)
# Example query
# SELECT distinct reviewer_id FROM response_maps where type = 'FeedbackResponseMap' and
# reviewed_object_id in (select id from responses where
# map_id in (select id from response_maps where reviewed_object_id = 722 and type = 'ReviewResponseMap'))
Do not prefix reader method names with get_
. Open
def get_title
- Read upRead up
- Exclude checks
This cop makes sure that accessor methods are named properly.
Example:
# bad
def set_attribute(value)
end
# good
def attribute=(value)
end
# bad
def get_attribute
end
# good
def attribute
end
Missing top-level class documentation comment. Open
class FeedbackResponseMap < ResponseMap
- Read upRead up
- 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
Use a guard clause instead of wrapping the code inside a conditional expression. Open
if Assignment.find(id).varying_rubrics_by_round?
- Read upRead up
- Exclude checks
Use a guard clause instead of wrapping the code inside a conditional expression
Example:
# bad
def test
if something
work
end
end
# good
def test
return unless something
work
end
# also good
def test
work if something
end
# bad
if something
raise 'exception'
else
ok
end
# good
raise 'exception' if something
ok