Method condition_edit
has a Cognitive Complexity of 79 (exceeds 5 allowed). Consider refactoring. Open
def condition_edit
case params[:button]
when "cancel"
id = params[:id] || "new"
return unless load_edit("condition_edit__#{id}")
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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
Cyclomatic complexity for condition_edit is too high. [33/11] Open
def condition_edit
case params[:button]
when "cancel"
id = params[:id] || "new"
return unless load_edit("condition_edit__#{id}")
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- Exclude checks
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 condition_edit
has 82 lines of code (exceeds 25 allowed). Consider refactoring. Open
def condition_edit
case params[:button]
when "cancel"
id = params[:id] || "new"
return unless load_edit("condition_edit__#{id}")
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Method build_expression_vars
has 29 lines of code (exceeds 25 allowed). Consider refactoring. Open
def build_expression_vars
@edit[:new][:expression] = @condition.expression.kind_of?(MiqExpression) ? @condition.expression.exp : nil
@edit[:new][:applies_to_exp] = @condition.applies_to_exp.kind_of?(MiqExpression) ? @condition.applies_to_exp.exp : nil
# Populate exp editor fields for the expression column
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Method condition_build_edit_screen
has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring. Open
def condition_build_edit_screen
@edit = {}
@edit[:new] = {}
@edit[:current] = {}
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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
Method build_expression_vars
has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring. Open
def build_expression_vars
@edit[:new][:expression] = @condition.expression.kind_of?(MiqExpression) ? @condition.expression.exp : nil
@edit[:new][:applies_to_exp] = @condition.applies_to_exp.kind_of?(MiqExpression) ? @condition.applies_to_exp.exp : nil
# Populate exp editor fields for the expression column
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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
Method condition_build_edit_screen
has 26 lines of code (exceeds 25 allowed). Consider refactoring. Open
def condition_build_edit_screen
@edit = {}
@edit[:new] = {}
@edit[:current] = {}
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Method condition_field_changed
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
def condition_field_changed
return unless load_edit("condition_edit__#{params[:id]}")
@condition = @edit[:condition_id] ? Condition.find(@edit[:condition_id]) : Condition.new
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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
Avoid more than 3 levels of block nesting. Open
if params[:button] == "save"
flash_msg = _("Condition \"%{name}\" was saved") % {:name => @edit[:new][:description]}
else
flash_msg = _("Condition \"%{name}\" was added") % {:name => @edit[:new][:description]}
end
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- Exclude checks
Checks for excessive nesting of conditional and looping constructs.
You can configure if blocks are considered using the CountBlocks
option. When set to false
(the default) blocks are not counted
towards the nesting level. Set to true
to count blocks as well.
The maximum level of nesting allowed is configurable.
Avoid more than 3 levels of block nesting. Open
javascript_redirect(:action => params[:button] == "add" ? "show_list" : @lastaction, :id => params[:id], :flash_msg => flash_msg)
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- Exclude checks
Checks for excessive nesting of conditional and looping constructs.
You can configure if blocks are considered using the CountBlocks
option. When set to false
(the default) blocks are not counted
towards the nesting level. Set to true
to count blocks as well.
The maximum level of nesting allowed is configurable.
Identical blocks of code found in 2 locations. Consider refactoring. Open
def build_expression(parent, model)
@edit[:new][:expression] = parent.expression.kind_of?(MiqExpression) ? parent.expression.exp : nil
# Populate exp editor fields for the expression column
@edit[:expression] ||= ApplicationController::Filter::Expression.new
@edit[:expression][:expression] = [] # Store exps in an array
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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 106.
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