Class: GQL::Call

Inherits:
Object
  • Object
show all
Defined in:
lib/gql/call.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target, context) ⇒ Call

Returns a new instance of Call.



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# File 'lib/gql/call.rb', line 39

def initialize(target, context)
  @target, @context = target, context
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/gql/call.rb', line 37

def context
  @context
end

#target ⇒ Object (readonly)

Returns the value of attribute target.



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# File 'lib/gql/call.rb', line 37

def target
  @target
end

Class Method Details

.execute(caller_class, ast_node, target, variables, context) ⇒ Object 



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# File 'lib/gql/call.rb', line 21

def execute(caller_class, ast_node, target, variables, context)
  args = substitute_variables(ast_node.arguments, variables)
  target = new(target, context).execute(*args)

  next_class = result_class || caller_class

  result = next_class.new(ast_node, target, variables, context)
  result.value
end

.returns(result_class = nil, &block) ⇒ Object 



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# File 'lib/gql/call.rb', line 8

def returns(result_class = nil, &block)
  if result_class
    self.result_class = result_class
  elsif block_given?
    Class.new(Node).tap do |result_class|
      result_class.default_proc = -> id { -> { target[id] } }
      result_class.class_eval(&block)

      returns result_class
    end
  end
end

Instance Method Details

#execute ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gql/call.rb', line 43

def execute(*)
  raise NotImplementedError, 'override in subclass'
end