Class: GQL::Call

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

Defined Under Namespace

Classes: Method

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(caller, ast_node, target, variables, context) ⇒ Call

Returns a new instance of Call.



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# File 'lib/gql/call.rb', line 50

def initialize(caller, ast_node, target, variables, context)
  @caller, @ast_node, @target = caller, ast_node, target
  @variables, @context = variables, context
end

Instance Attribute Details

#ast_node ⇒ Object (readonly)

Returns the value of attribute ast_node.



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# File 'lib/gql/call.rb', line 48

def ast_node
  @ast_node
end

#caller ⇒ Object (readonly)

Returns the value of attribute caller.



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# File 'lib/gql/call.rb', line 48

def caller
  @caller
end

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/gql/call.rb', line 48

def context
  @context
end

#target ⇒ Object (readonly)

Returns the value of attribute target.



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# File 'lib/gql/call.rb', line 48

def target
  @target
end

#variables ⇒ Object (readonly)

Returns the value of attribute variables.



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# File 'lib/gql/call.rb', line 48

def variables
  @variables
end

Class Method Details

.build_class(id, result_class, method) ⇒ Object 



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# File 'lib/gql/call.rb', line 18

def build_class(id, result_class, method)
  if result_class.is_a? ::Array
    if result_class.size == 1
      result_class.unshift GQL.default_list_class || Connection
    end

    list_class, item_class = result_class

    unless list_class <= Connection
      raise Errors::InvalidNodeClass.new(list_class, Connection)
    end

    unless item_class <= Node
      raise Errors::InvalidNodeClass.new(list_class, Node)
    end

    options = { list_class: list_class, item_class: item_class }
    result_class = Connection.build_class(:result, nil, options)
  elsif result_class && !(result_class <= Node)
    raise Errors::InvalidNodeClass.new(result_class, Node)
  end

  Class.new(self).tap do |call_class|
    call_class.id = id.to_s
    call_class.method = method
    call_class.result_class = result_class
  end
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/gql/call.rb', line 55

def execute
  args = substitute_variables(ast_node.arguments)

  method = Method.new(target, context)
  target = method.execute(self.class.method, args)
  result_class = self.class.result_class || caller.class

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