Module: Stardust::GraphQL::Collector

Defined in:
lib/stardust/graphql/collector.rb

Constant Summary collapse

FIXED_TYPES = 
{
  id: ::GraphQL::Types::ID,
  int: Integer,
  integer: Integer,
  float: Float,
  string: String,
  date: ::GraphQL::Types::ISO8601DateTime,
  datetime: ::GraphQL::Types::ISO8601DateTime,
  boolean: ::GraphQL::Types::Boolean,
}.freeze
@@__types__ = 
{}.merge(FIXED_TYPES)
@@__defined_types__ = 
[]
@@__queries__ = 
{}
@@__mutations__ = 
{}

Class Method Summary collapse

Class Method Details

.add_mutation(name, mutation:) ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 61

def add_mutation(name, mutation:)
  if name.in?(@@__queries__.keys)
    raise "Mutation #{name.to_s} is already defined."
  end
  @@__mutations__[name] = mutation
end

.add_query(name, query:) ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 54

def add_query(name, query:)
  if name.in?(@@__queries__.keys)
    raise "Query #{name.to_s} is already defined."
  end
  @@__queries__[name] = query
end

.add_type(type, block, object_klass) ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 23

def add_type(type, block, object_klass)
  if type.in?(@@__types__.keys)
    raise "Type #{type.to_s} is alread defined."
  end

  @@__defined_types__ << type.to_s.camelize

  klass = Class.new(object_klass, &block)

  begin
    klass.graphql_name
  rescue NotImplementedError
    klass.graphql_name(type.to_s.camelize)
  end

  ::Stardust::GraphQL::Types.const_set("#{type.to_s.camelize}", klass)
  @@__types__[type] = "Stardust::GraphQL::Types::#{type.to_s.camelize}".constantize
end

.clear_definitions! ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 42

def self.clear_definitions!

  @@__defined_types__.each do |type|
    Stardust::GraphQL::Types.send(:remove_const, type)
  end

  @@__defined_types__ = []
  @@__types__ = {}.merge(FIXED_TYPES)
  @@__queries__ = {}
  @@__mutations__ = {}
end

.lookup_type(type) ⇒ Object

Raises:



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# File 'lib/stardust/graphql/collector.rb', line 76

def self.lookup_type(type)
  if type.is_a?(Array)
    type = type.first
    is_a_array = true
  end

  raise MissingType, type.to_s unless @@__types__[type]

  if is_a_array
    [@@__types__[type]]
  else
    @@__types__[type]
  end
end

.queries ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 72

def self.queries
  @@__queries__
end

.replace_types! ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 91

def self.replace_types!
  @@__types__.values.each do |klass|
    begin
      klass.replace_types! if klass.respond_to?(:replace_types!)
    rescue MissingType => e
      warn <<~TEXT

        Stardust Compilation Error
        Type #{e.message} is not defined.

      TEXT
    end
  end

  ## Here we define a new graphql type
  if Stardust::GraphQL.const_defined?("Schema")
    Stardust::GraphQL.send(:remove_const, "Schema")
  end
  klass = Class.new(::GraphQL::Schema) do
    use ::GraphQL::Batch
  end
  Stardust::GraphQL.const_set("Schema", klass)

  query_class = Class.new(::Stardust::GraphQL::Object)
  query_class.graphql_name("QueryRoot")
  @@__queries__.each do |name, query|

    block = ->(field) {

      query.get_arguments.each do |name, type, description, kwargs, block|
        field.argument(name, type, description, **kwargs, &block)
      end

      field.instance_variable_set(:@resolver_class, query)
      field.instance_variable_set(:@resolver_method, :resolve)
      field.extension(Extensions::Authorize)
    }

    query_class.send(:field,
      name,
      query.get_type,
      query.get_description,
      null: query.get_null,
      &block
    )
  end

  begin
    query_class.replace_types!
  rescue MissingType => e
    warn <<~TEXT

      Stardust Compilation Error
      Type #{e.message} is not defined.

    TEXT
  end
  Stardust::GraphQL::Schema.query(query_class)


  mutation_class = Class.new(::GraphQL::Schema::Object)
  mutation_class.graphql_name("MutationRoot")
  @@__mutations__.each do |name, mutation|
    begin
      mutation.replace_types!
      mutation_class.send(:field, name, mutation: mutation )
    rescue MissingType => e
      warn <<~TEXT

        Stardust Compilation Error
        Type #{e.message} is not defined.

      TEXT
    end
  end
  Stardust::GraphQL::Schema.mutation(mutation_class)
end

.types ⇒ Object 



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# File 'lib/stardust/graphql/collector.rb', line 68

def self.types
  @@__types__
end