Module: GraphqlModelMapper::Query

Defined in:
lib/graphql_model_mapper/query.rb

Class Method Summary collapse

Class Method Details

.get_default_select_arguments(model, scope_methods) ⇒ Object 



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# File 'lib/graphql_model_mapper/query.rb', line 15

def self.get_default_select_arguments(model, scope_methods)
    default_arguments = [
      {:name=>:explain,   :type=>GraphQL::BOOLEAN_TYPE, :default=>nil}, 
      {:name=>:id,    :type=>GraphQL::INT_TYPE, :default=>nil}, 
      {:name=>:ids,    :type=>GraphQL::INT_TYPE.to_list_type, :default=>nil}, 
      {:name=>:limit, :type=>GraphQL::INT_TYPE, :default=>50},
      {:name=>:offset, :type=>GraphQL::INT_TYPE, :default=>nil},
      {:name=>:order,   :type=>GraphQL::STRING_TYPE, :default=>nil}, 
      {:name=>:where, :type=>GraphQL::STRING_TYPE.to_list_type, :default=>nil}
    ]

    scope_methods = scope_methods.map(&:to_sym)                        
    #.select{|m| model.method(m.to_sym).arity == 0}
    if (model.public_methods - model.instance_methods - Object.methods - ActiveRecord::Base.methods).include?(:with_deleted)
      default_arguments << {:name=>:with_deleted, :type=>GraphQL::BOOLEAN_TYPE, :default=>false}
    end
    allowed_scope_methods = []
    if scope_methods.count > 0
      scope_methods.each do |s|
        #.select{|m| model.method(m.to_sym).arity == 0}
        allowed_scope_methods << s if (model.public_methods - model.instance_methods - Object.methods - ActiveRecord::Base.methods).include?(s)
      end
      if allowed_scope_methods.count > 0
        typename = GraphqlModelMapper.get_type_case("#{GraphqlModelMapper.get_type_name(model.name)}Scope_Enum")
        if !GraphqlModelMapper.defined_constant?(typename)
          enum_type = GraphQL::EnumType.define do
            name typename
            description "scope enum for #{GraphqlModelMapper.get_type_name(model.name)}"
            allowed_scope_methods.sort.each do |s|
              value(s, "")
            end
          end
          GraphqlModelMapper.set_constant typename, enum_type
        end
        default_arguments << {:name=>:scope, :type=>GraphqlModelMapper.get_constant(typename), :default=>nil}
      end
    end
    default_arguments
end

.get_query(name, description, operation_name, resolver, arguments, scope_methods, input_type, output_type) ⇒ Object 



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# File 'lib/graphql_model_mapper/query.rb', line 55

def self.get_query(name, description, operation_name, resolver, arguments, scope_methods, input_type, output_type)
    
    query_type_name = GraphqlModelMapper.get_type_case("#{GraphqlModelMapper.get_type_name(name)}#{operation_name}")
    return GraphqlModelMapper.get_constant(query_type_name) if GraphqlModelMapper.defined_constant?(query_type_name) 
    
    model = name.classify.constantize

    default_arguments = self.get_default_select_arguments(model, scope_methods)
    select_input_type_name = "#{GraphqlModelMapper.get_type_case(GraphqlModelMapper.get_type_name(name))}QueryInput"     
    if GraphqlModelMapper.defined_constant?(select_input_type_name)
      select_input_type = GraphqlModelMapper.get_constant(select_input_type_name)
    else
      select_input_type = GraphQL::InputObjectType.define do
        name select_input_type_name
        default_arguments.each do |k|
          argument k[:name].to_sym, k[:type], k[:description], default_value: k[:default] 
        end
      end
      GraphqlModelMapper.set_constant(select_input_type_name, select_input_type)
    end

    total_output_type_name = "#{GraphqlModelMapper.get_type_name(name)}QueryPayload"
    if GraphqlModelMapper.defined_constant?(total_output_type_name)
      total_output_type = GraphqlModelMapper.get_constant(total_output_type_name)
    else
      total_output_type = GraphQL::ObjectType.define do
        name total_output_type_name
        if [:deep, :shallow].include?(GraphqlModelMapper.nesting_strategy)
          connection :items, -> {output_type.connection_type}, hash_key: :items
        else
          field :items, -> {output_type.to_list_type}, hash_key: :items
        end
        field :total, -> {GraphQL::INT_TYPE}, hash_key: :total
      end
      GraphqlModelMapper.set_constant(total_output_type_name, total_output_type)
    end

      
    ret_type = GraphQL::Field.define do
        name query_type_name
        type total_output_type
        #argument :select, -> {!select_input_type}
        default_arguments.each do |k|
          argument k[:name].to_sym, k[:type], k[:description], default_value: k[:default] 
        end

        resolve resolver 
      end
    GraphqlModelMapper.set_constant(query_type_name, ret_type)
    GraphqlModelMapper.get_constant(query_type_name)
end

.graphql_query(name: "", description: "", resolver: nil, arguments: [], scope_methods: []) ⇒ Object 



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# File 'lib/graphql_model_mapper/query.rb', line 3

def self.graphql_query(name: "",
    description: "",
    resolver: nil,
    arguments: [],
    scope_methods: []
  )
  
    input_type = GraphqlModelMapper::MapperType.get_ar_object_with_params(name, type_key: :query, type_sub_key: :input_type)
    output_type = GraphqlModelMapper::MapperType.get_ar_object_with_params(name, type_key: :query, type_sub_key: :output_type)
    self.get_query(name, description, "Query", resolver, arguments, scope_methods, input_type, output_type)
end