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app/controllers/student_task_controller.rb

Summary

Maintainability
A
2 hrs
Test Coverage
F
0%

Class has too many lines. [116/100]
Open

class StudentTaskController < ApplicationController
  include AuthorizationHelper

  helper :submitted_content
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

This cop checks if the length a class exceeds some maximum value. Comment lines can optionally be ignored. The maximum allowed length is configurable.

Assignment Branch Condition size for list is too high. [51.83/15]
Open

  def list
    if current_user.is_new_user
      redirect_to(controller: 'eula', action: 'display')
    end
    session[:user] = User.find_by(id: current_user.id)
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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

Assignment Branch Condition size for send_email is too high. [35.57/15]
Open

  def send_email
    subject = params['send_email']['subject']
    body = params['send_email']['email_body']
    participant_id = params['participant_id']
    assignment_id = params['assignment_id']
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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

Assignment Branch Condition size for others_work is too high. [34.06/15]
Open

  def others_work
    @participant = AssignmentParticipant.find(params[:id])
    return unless current_user_id?(@participant.user_id)

    @assignment = @participant.assignment
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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. [24/10]
Open

  def send_email
    subject = params['send_email']['subject']
    body = params['send_email']['email_body']
    participant_id = params['participant_id']
    assignment_id = params['assignment_id']
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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.

Assignment Branch Condition size for view is too high. [28.25/15]
Open

  def view
    StudentTask.from_participant_id params[:id]
    @participant = AssignmentParticipant.find(params[:id])
    @can_submit = @participant.can_submit
    @can_review = @participant.can_review
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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. [19/10]
Open

  def others_work
    @participant = AssignmentParticipant.find(params[:id])
    return unless current_user_id?(@participant.user_id)

    @assignment = @participant.assignment
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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 has too many lines. [17/10]
Open

  def list
    if current_user.is_new_user
      redirect_to(controller: 'eula', action: 'display')
    end
    session[:user] = User.find_by(id: current_user.id)
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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 has too many lines. [15/10]
Open

  def view
    StudentTask.from_participant_id params[:id]
    @participant = AssignmentParticipant.find(params[:id])
    @can_submit = @participant.can_submit
    @can_review = @participant.can_review
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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.

Perceived complexity for list is too high. [9/7]
Open

  def list
    if current_user.is_new_user
      redirect_to(controller: 'eula', action: 'display')
    end
    session[:user] = User.find_by(id: current_user.id)
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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

Cyclomatic complexity for list is too high. [8/6]
Open

  def list
    if current_user.is_new_user
      redirect_to(controller: 'eula', action: 'display')
    end
    session[:user] = User.find_by(id: current_user.id)
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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.

Cyclomatic complexity for others_work is too high. [7/6]
Open

  def others_work
    @participant = AssignmentParticipant.find(params[:id])
    return unless current_user_id?(@participant.user_id)

    @assignment = @participant.assignment
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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

  def others_work
    @participant = AssignmentParticipant.find(params[:id])
    return unless current_user_id?(@participant.user_id)

    @assignment = @participant.assignment
Severity: Minor
Found in app/controllers/student_task_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 list has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  def list
    if current_user.is_new_user
      redirect_to(controller: 'eula', action: 'display')
    end
    session[:user] = User.find_by(id: current_user.id)
Severity: Minor
Found in app/controllers/student_task_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 send_email has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

  def send_email
    subject = params['send_email']['subject']
    body = params['send_email']['email_body']
    participant_id = params['participant_id']
    assignment_id = params['assignment_id']
Severity: Minor
Found in app/controllers/student_task_controller.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

Missing top-level class documentation comment.
Open

class StudentTaskController < ApplicationController
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

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

Move format.json { head :no_content } out of the conditional.
Open

        format.json { head :no_content }
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

This cop checks for identical lines at the beginning or end of each branch of a conditional statement.

Example:

# bad
if condition
  do_x
  do_z
else
  do_y
  do_z
end

# good
if condition
  do_x
else
  do_y
end
do_z

# bad
if condition
  do_z
  do_x
else
  do_z
  do_y
end

# good
do_z
if condition
  do_x
else
  do_y
end

# bad
case foo
when 1
  do_x
when 2
  do_x
else
  do_x
end

# good
case foo
when 1
  do_x
  do_y
when 2
  # nothing
else
  do_x
  do_z
end

Move format.json { head :no_content } out of the conditional.
Open

        format.json { head :no_content }
Severity: Minor
Found in app/controllers/student_task_controller.rb by rubocop

This cop checks for identical lines at the beginning or end of each branch of a conditional statement.

Example:

# bad
if condition
  do_x
  do_z
else
  do_y
  do_z
end

# good
if condition
  do_x
else
  do_y
end
do_z

# bad
if condition
  do_z
  do_x
else
  do_z
  do_y
end

# good
do_z
if condition
  do_x
else
  do_y
end

# bad
case foo
when 1
  do_x
when 2
  do_x
else
  do_x
end

# good
case foo
when 1
  do_x
  do_y
when 2
  # nothing
else
  do_x
  do_z
end

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