Class: GraphQL::Query::Context::FieldResolutionContext

Inherits:
Object
  • Object
show all
Extended by:
Delegate
Defined in:
lib/graphql/query/context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Delegate

def_delegators

Constructor Details

#initialize(context:, key:, selection:, parent:, field:, parent_type:) ⇒ FieldResolutionContext

Returns a new instance of FieldResolutionContext.



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# File 'lib/graphql/query/context.rb', line 95

def initialize(context:, key:, selection:, parent:, field:, parent_type:)
  @context = context
  @key = key
  @parent = parent
  @selection = selection
  @field = field
  @parent_type = parent_type
  # This is needed constantly, so set it ahead of time:
  @query = context.query
  @schema = context.schema
end

Instance Attribute Details

#field ⇒ Object (readonly)

Returns the value of attribute field.



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# File 'lib/graphql/query/context.rb', line 93

def field
  @field
end

#parent_type ⇒ Object (readonly)

Returns the value of attribute parent_type.



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# File 'lib/graphql/query/context.rb', line 93

def parent_type
  @parent_type
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/graphql/query/context.rb', line 93

def query
  @query
end

#schema ⇒ Object (readonly)

Returns the value of attribute schema.



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# File 'lib/graphql/query/context.rb', line 93

def schema
  @schema
end

#selection ⇒ Object (readonly)

Returns the value of attribute selection.



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# File 'lib/graphql/query/context.rb', line 93

def selection
  @selection
end

Instance Method Details

#add_error(error) ⇒ void

This method returns an undefined value.

Add error to current field resolution.

Parameters:



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# File 'lib/graphql/query/context.rb', line 129

def add_error(error)
  if !error.is_a?(ExecutionError)
    raise TypeError, "expected error to be a ExecutionError, but was #{error.class}"
  end

  error.ast_node ||= irep_node.ast_node
  error.path ||= path
  errors << error
  nil
end

#ast_node ⇒ GraphQL::Language::Nodes::Field

Returns The AST node for the currently-executing field.

Returns:



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# File 'lib/graphql/query/context.rb', line 117

def ast_node
  @selection.ast_node
end

#irep_node ⇒ GraphQL::InternalRepresentation::Node

Returns:



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# File 'lib/graphql/query/context.rb', line 122

def irep_node
  @selection
end

#path ⇒ Object 



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# File 'lib/graphql/query/context.rb', line 107

def path
  @path ||= @parent.path.dup << @key
end

#spawn(key:, selection:, parent_type:, field:) ⇒ Object 



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# File 'lib/graphql/query/context.rb', line 140

def spawn(key:, selection:, parent_type:, field:)
  FieldResolutionContext.new(
    context: @context,
    parent: self,
    key: key,
    selection: selection,
    parent_type: parent_type,
    field: field,
  )
end