Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://graphql-ruby.org/api-doc/2.5.11/GraphQL/Analysis/QueryComplexity below:

QueryComplexity — GraphQL Ruby API Documentation

Inherits:

Analyzer

• Object
• Analyzer
• GraphQL::Analysis::QueryComplexity

show all

Defined in:

lib/graphql/analysis/query_complexity.rb

Calculate the complexity of a query, using Field#complexity values.

Classes: ScopedTypeComplexity

• #initialize(query) ⇒ QueryComplexity constructor

  State for the query complexity calculation: - complexities_on_type holds complexity scores for each type.

• #on_enter_field(node, parent, visitor) ⇒ Object
• #on_leave_field(node, parent, visitor) ⇒ Object
• #result ⇒ Object

  Override this method to use the complexity result.

#analyze?, #visit?

State for the query complexity calculation: - complexities_on_type holds complexity scores for each type

8
9
10
11
12

# File 'lib/graphql/analysis/query_complexity.rb', line 8

def initialize(query)
  super
  @skip_introspection_fields = !query.schema.max_complexity_count_introspection_fields
  @complexities_on_type_by_query = {}
end

78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94

# File 'lib/graphql/analysis/query_complexity.rb', line 78

def on_enter_field(node, parent, visitor)
      return if visitor.visiting_fragment_definition?
  return if visitor.skipping?
  return if @skip_introspection_fields && visitor.field_definition.introspection?
  parent_type = visitor.parent_type_definition
  field_key = node.alias || node.name

    scopes_stack = @complexities_on_type_by_query[visitor.query] ||= [ScopedTypeComplexity.new(nil, nil, query, visitor.response_path)]

    scope = scopes_stack.last[parent_type][field_key] ||= ScopedTypeComplexity.new(parent_type, visitor.field_definition, visitor.query, visitor.response_path)
  scope.nodes.push(node)
  scopes_stack.push(scope)
end

96
97
98
99
100
101
102
103
104

# File 'lib/graphql/analysis/query_complexity.rb', line 96

def on_leave_field(node, parent, visitor)
      return if visitor.visiting_fragment_definition?
  return if visitor.skipping?
  return if @skip_introspection_fields && visitor.field_definition.introspection?
  scopes_stack = @complexities_on_type_by_query[visitor.query]
  scopes_stack.pop
end

Override this method to use the complexity result

15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

# File 'lib/graphql/analysis/query_complexity.rb', line 15

def result
  case subject.schema.complexity_cost_calculation_mode_for(subject.context)
  when :future
    max_possible_complexity
  when :legacy
    max_possible_complexity(mode: :legacy)
  when :compare
    future_complexity = max_possible_complexity
    legacy_complexity = max_possible_complexity(mode: :legacy)
    if future_complexity != legacy_complexity
      subject.schema.legacy_complexity_cost_calculation_mismatch(subject, future_complexity, legacy_complexity)
    else
      future_complexity
    end
  when nil
    subject.logger.warn <<~GRAPHQL
      GraphQL-Ruby's complexity cost system is getting some "breaking fixes" in a future version. See the migration notes at https://graphql-ruby.org/api-doc/#{GraphQL::VERSION}/GraphQL/Schema.html#complexity_cost_calculation_mode_for-class_method

      To opt into the future behavior, configure your schema (#{subject.schema.name ? subject.schema.name : subject.schema.ancestors}) with:

        complexity_cost_calculation_mode(:future) # or `:legacy`, `:compare`

    GRAPHQL
    max_possible_complexity(mode: :legacy)
  else
    raise ArgumentError, "Expected `:future`, `:legacy`, `:compare`, or `nil` from `#{query.schema}.complexity_cost_calculation_mode_for` but got: #{query.schema.complexity_cost_calculation_mode.inspect}"
  end
end

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4