Module: Quail::Resource::TypeBuilder::FieldBuilder

Defined in:
lib/quail/resource/type_builder/field_builder.rb

Overview

Defines scalar (column-backed) and computed fields on a GraphQL type.

Constant Summary collapse

CONTEXT_AWARE_ARITY =

Full block signature: |object, args, context|

3

Class Method Summary collapse

Class Method Details

.define_column_fields(type_class, model, attrs) ⇒ Object 



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# File 'lib/quail/resource/type_builder/field_builder.rb', line 11

def self.define_column_fields(type_class, model, attrs)
  attrs.each do |name, config|
    next unless config[:type] == :column

    col = model.columns_hash[name.to_s]
    if col
      type_class.field name, TypeMap.graphql_types(col), null: TypeMap.nullable?(col)
    else
      type_class.field name, GraphQL::Types::String, null: true
    end
  end
end

.define_computed_fields(type_class, attrs) ⇒ Object 



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# File 'lib/quail/resource/type_builder/field_builder.rb', line 24

def self.define_computed_fields(type_class, attrs)
  attrs.each do |name, config|
    next unless config[:type] == :computed

    define_single_computed_field(type_class, name, config)
  end
end

.define_computed_resolver(type_class, name, blk) ⇒ Object 



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# File 'lib/quail/resource/type_builder/field_builder.rb', line 39

def self.define_computed_resolver(type_class, name, blk)
  type_class.define_method(name) do
    if blk.arity.abs >= CONTEXT_AWARE_ARITY
      FieldBuilder.safe_call(blk, object, nil, context)
    else
      FieldBuilder.safe_call(blk, object)
    end
  end
end

.define_single_computed_field(type_class, name, config) ⇒ Object 



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# File 'lib/quail/resource/type_builder/field_builder.rb', line 32

def self.define_single_computed_field(type_class, name, config)
  gql_type = config[:graphql_type] || GraphQL::Types::String
  nullable = config[:null].nil? || config[:null]
  type_class.field name, gql_type, null: nullable
  define_computed_resolver(type_class, name, config[:block])
end

.safe_call(blk) ⇒ Object 



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# File 'lib/quail/resource/type_builder/field_builder.rb', line 49

def self.safe_call(blk, *)
  blk.call(*)
rescue LocalJumpError => e
  e.exit_value
end