ManageIQ/manageiq

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app/models/miq_report/generator.rb

Summary

Maintainability
D
1 day
Test Coverage

Method build_add_includes has a Cognitive Complexity of 49 (exceeds 11 allowed). Consider refactoring.
Open

  def build_add_includes(data_records, entry, includes, parent_association)
    include_has_options = includes.kind_of?(Hash)
    associations = include_has_options ? includes.keys : Array(includes)

    associations.each do |association|
Severity: Minor
Found in app/models/miq_report/generator.rb - About 6 hrs 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 build_correlate_tag_cols has a Cognitive Complexity of 27 (exceeds 11 allowed). Consider refactoring.
Open

  def build_correlate_tag_cols
    tags2desc = {}
    arr = self.cols.inject([]) do |a, c|
      self.extras[:group_by_tag_cols].each do |tc|
        tag = tc[(c.length + 1)..-1]
Severity: Minor
Found in app/models/miq_report/generator.rb - About 2 hrs 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

Cyclomatic complexity for build_table is too high. [15/11]
Open

  def build_table(data, db, options = {})
    data = data.to_a
    objs = data[0] && data[0].kind_of?(Integer) ? db_klass.where(:id => data) : data.compact

    remove_loading_relations_for_virtual_custom_attributes
Severity: Minor
Found in app/models/miq_report/generator.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 include_as_hash has a Cognitive Complexity of 22 (exceeds 11 allowed). Consider refactoring.
Open

  def include_as_hash(includes = include, klass = db_class, klass_cols = cols)
    result = {}
    if klass_cols && klass && klass.respond_to?(:virtual_attribute?)
      klass_cols.each do |c|
        result[c.to_sym] = {} if klass.virtual_attribute?(c) && !klass.attribute_supported_by_sql?(c)
Severity: Minor
Found in app/models/miq_report/generator.rb - About 2 hrs 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

Cyclomatic complexity for build_add_includes is too high. [13/11]
Open

  def build_add_includes(data_records, entry, includes, parent_association)
    include_has_options = includes.kind_of?(Hash)
    associations = include_has_options ? includes.keys : Array(includes)

    associations.each do |association|
Severity: Minor
Found in app/models/miq_report/generator.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 include_as_hash is too high. [13/11]
Open

  def include_as_hash(includes = include, klass = db_class, klass_cols = cols)
    result = {}
    if klass_cols && klass && klass.respond_to?(:virtual_attribute?)
      klass_cols.each do |c|
        result[c.to_sym] = {} if klass.virtual_attribute?(c) && !klass.attribute_supported_by_sql?(c)
Severity: Minor
Found in app/models/miq_report/generator.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 build_correlate_tag_cols is too high. [13/11]
Open

  def build_correlate_tag_cols
    tags2desc = {}
    arr = self.cols.inject([]) do |a, c|
      self.extras[:group_by_tag_cols].each do |tc|
        tag = tc[(c.length + 1)..-1]
Severity: Minor
Found in app/models/miq_report/generator.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 build_table has a Cognitive Complexity of 18 (exceeds 11 allowed). Consider refactoring.
Open

  def build_table(data, db, options = {})
    data = data.to_a
    objs = data[0] && data[0].kind_of?(Integer) ? db_klass.where(:id => data) : data.compact

    remove_loading_relations_for_virtual_custom_attributes
Severity: Minor
Found in app/models/miq_report/generator.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 build_pivot has a Cognitive Complexity of 17 (exceeds 11 allowed). Consider refactoring.
Open

  def build_pivot(data)
    return data unless rpt_options && rpt_options.key?(:pivot)
    return data if data.blank?

    # Build a tempory table so that ruport sorting can be used to sort data before summarizing pivot data
Severity: Minor
Found in app/models/miq_report/generator.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 build_add_missing_timestamps has a Cognitive Complexity of 14 (exceeds 11 allowed). Consider refactoring.
Open

  def build_add_missing_timestamps(recs)
    return recs unless !recs.empty? && (recs.first.kind_of?(Metric) || recs.first.kind_of?(MetricRollup))
    return recs if db_options && db_options[:calc_avgs_by] && db_options[:calc_avgs_by] != "time_interval" # Only fill in missing timestamps if averages are requested to be based on time

    base_cols = Metric::BASE_COLS - ["id"]
Severity: Minor
Found in app/models/miq_report/generator.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

Avoid more than 3 levels of block nesting.
Open

              tags2desc[tag] = entry.nil? ? tag.titleize : entry.description
Severity: Minor
Found in app/models/miq_report/generator.rb by rubocop

This cop 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

          assoc_klass = (assoc_reflection.options[:polymorphic] ? k : assoc_reflection.klass) if assoc_reflection
Severity: Minor
Found in app/models/miq_report/generator.rb by rubocop

This cop 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.

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    while arr.first[1] == "[None]"
      arr.push(arr.shift)
    end unless arr.blank? || (arr.first[1] == "[None]" && arr.last[1] == "[None]")
    arr.each do |c, h|
Severity: Minor
Found in app/models/miq_report/generator.rb and 1 other location - About 20 mins to fix
app/models/miq_report/generator.rb on lines 537..540

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 28.

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

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    while tarr.first[1] == "[None]"
      tarr.push(tarr.shift)
    end unless tarr.blank? || (tarr.first[1] == "[None]" && tarr.last[1] == "[None]")
    self.extras[:group_by_tags] = tarr.collect { |a| a[0] }
Severity: Minor
Found in app/models/miq_report/generator.rb and 1 other location - About 20 mins to fix
app/models/miq_report/generator.rb on lines 527..530

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 28.

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

Further Reading

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

  def build_table(data, db, options = {})
Severity: Minor
Found in app/models/miq_report/generator.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

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