Module: Graphql::Generators::GraphqlHelpers

Included in:
CreateAllGenerator, GraphqlGenerator
Defined in:
lib/generators/graphql/graphql_helpers.rb

Instance Method Summary collapse

Instance Method Details

#add_connection_query(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 113

def add_connection_query(model)
  inject_into_file 'app/graphql/types/root_level_type.rb', after: "field :id, field: GraphQL::Relay::GlobalIdField.new('RootLevel')\n" do "  connection :\#{model.to_s.tableize}, \#{model.to_s}Type.connection_type do\n    resolve ->(object, args, ctx){\n\#{model.to_s}.all\n    }\n  end\n  FILE\n  end\nend\n"

#add_connections(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 78

def add_connections(model)
  associations = model.reflect_on_all_associations(:has_many)
  associations += model.reflect_on_all_associations(:has_and_belongs_to_many)

  associations.map(&:name).each do |ast|
    association_klass = model.reflect_on_association(ast).class_name
    begin
      if models.include? association_klass.classify.constantize
        if circular_finder[model.to_s].include? association_klass || association_klass == model.to_s
          inject_into_file type_path(model), before: "# End of fields\n" do "  connection :\#{ast.to_s}, -> { \#{model.reflect_on_association(ast).class_name}Type.connection_type } do\n    resolve ->(\#{singular_route_key(model)}, args, ctx) {\n\#{singular_route_key(model)}.\#{ast}\n    }\n  end\n\n          FILE\n          end\n        else\n          inject_into_file type_path(model), before: \"# End of fields\\n\" do <<-FILE\n  connection :\#{ast.to_s}, \#{model.reflect_on_association(ast).class_name}Type.connection_type do\n    resolve -> (\#{singular_route_key(model)}, args, ctx) {\n\#{singular_route_key(model)}.\#{ast}\n    }\n  end\n          FILE\n          end\n        end\n      end\n    rescue => ex\n      puts ex\n    end\n  end\nend\n"

#add_fields(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 38

def add_fields(model)
  columns = model.columns_hash
  columns.keys.each do |k|
    next if columns[k].name == 'id'

    if columns[k].type.present?
      inject_into_file type_path(model), after: "field :id, field: GraphQL::Relay::GlobalIdField.new('#{model.to_s}')\n" do "  field :\#{columns[k].name}, types.\#{type_mapper[columns[k].type]}\n      FILE\n      end\n    end\n  end\nend\n"

#add_fields_to_mutation(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 180

def add_fields_to_mutation(model)
  columns = model.columns_hash
  columns.keys.each do |k|
    next if %w(id created_at updated_at).include? columns[k].name
    if columns[k].type.present?
      inject_into_file mutation_path(model), after: "name 'Update#{model.to_s}'\n" do "    input_field :\#{columns[k].name}, types.\#{type_mapper[columns[k].type]}\n      FILE\n      end\n\n      inject_into_file mutation_path(model), after: \"name 'Create\#{model.to_s}'\\n\", :force => true do <<-FILE\n    input_field :\#{columns[k].name}, !types.\#{type_mapper[columns[k].type]}\n      FILE\n      end\n    end\n  end\nend\n"

#add_methods(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 52

def add_methods(model)
  associations = model.reflect_on_all_associations(:belongs_to)

  associations.map(&:name).each do |ast|
    association_klass = model.reflect_on_association(ast).class_name

    begin
      if models.include? association_klass.classify.constantize
        inject_into_file type_path(model), before: "# End of fields\n" do "  field :\#{ast.to_s} do\n    type -> { \#{model.reflect_on_association(ast).class_name}Type }\n\n    resolve -> (\#{singular_route_key(model)}, args, ctx) {\n\#{singular_route_key(model)}.\#{ast.to_s}\n    }\n  end\n\n        FILE\n        end\n      end\n    rescue => ex\n      puts ex\n    end\n  end\nend\n"

#add_mutation_query(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 198

def add_mutation_query(model)
  inject_into_file "app/graphql/types/mutation_type.rb", after: "name 'MutationType'\n" do "  field :create\#{model.to_s}, field: \#{model.to_s}Mutations::Create.field\n  field :update\#{model.to_s}, field: \#{model.to_s}Mutations::Update.field\n  field :destroy\#{model.to_s}, field: \#{model.to_s}Mutations::Destroy.field\n\n  FILE\n  end\nend\n"

#circular_finder ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 224

def circular_finder
  circular_finder = {}

  models.each do |m|
    associations = m.reflect_on_all_associations.map(&:name)
    circular_finder[m.to_s] = [] unless circular_finder[m.to_s].present?

    associations.each do |k|
      association_klass = m.reflect_on_association(k).class_name
      circular_finder[association_klass] = [] unless circular_finder[association_klass].present?

      circular_finder[association_klass] << m.to_s
    end
  end

  @circular_finder ||= circular_finder
end

#create_mutation(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 124

def create_mutation(model)
  create_file mutation_path(model), "module \#{model.to_s}Mutations\n\n  Create = GraphQL::Relay::Mutation.define do\n    name 'Create\#{model.to_s}'\n\n    return_field :\#{instance_name(model)}, \#{model.to_s}Type\n\n    resolve -> (inputs, ctx) {\nroot = RootLevel::STATIC\nattr = inputs.keys.inject({}) do |memo, key|\n  memo[key] = inputs[key] unless key == \"clientMutationId\"\n  memo\nend\n\n\#{instance_name(model)} = \#{model.to_s}.create(attr)\n\n{ \#{instance_name(model)}: \#{instance_name(model)} }\n    }\n  end\n\n  Update = GraphQL::Relay::Mutation.define do\n    name 'Update\#{model.to_s}'\n\n    input_field :id, !types.ID\n\n    return_field :\#{instance_name(model)}, \#{model.to_s}Type\n\n    resolve -> (inputs, ctx) {\n\#{instance_name(model)} = NodeIdentification.object_from_id((inputs[:id]), ctx)\nattr = inputs.keys.inject({}) do |memo, key|\n  memo[key] = inputs[key] unless key == \"clientMutationId\" || key == 'id'\n  memo\nend\n\n\#{instance_name(model)}.update(attr)\n{ \#{instance_name(model)}: \#{instance_name(model)} }\n    }\n  end\n\n  Destroy = GraphQL::Relay::Mutation.define do\n    name \"Destroy\#{model.to_s}\"\n\n    input_field :id, !types.ID\n\n    resolve -> (inputs, ctx) {\n\#{instance_name(model)} = NodeIdentification.object_from_id((inputs[:id]), ctx)\n\#{instance_name(model)}.destroy\n{ }\n    }\n  end\nend\n  FILE\nend\n"

#create_type(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 23

def create_type(model)
  create_file "app/graphql/types/#{ActiveModel::Naming.singular_route_key(model)}_type.rb", "\#{model.to_s}Type = GraphQL::ObjectType.define do\n  name '\#{model.to_s}'\n  description '\#{model.to_s} type'\n\n  interfaces [NodeIdentification.interface]\n\n  field :id, field: GraphQL::Relay::GlobalIdField.new('\#{model.to_s}')\n  # End of fields\nend\n  FILE\n  add_fields(model)\nend\n"

#instance_name(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 220

def instance_name(model)
  ActiveModel::Naming.singular_route_key(model)
end

#models ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 4

def models
  @models ||= ActiveRecord::Base.connection.tables.map{ |x| x.classify.safe_constantize }.compact
end

#mutation_path(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 212

def mutation_path(model)
  "app/graphql/mutations/#{singular_route_key(model)}_mutations.rb"
end

#singular_route_key(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 208

def singular_route_key(model)
  ActiveModel::Naming.singular_route_key(model)
end

#type_mapper ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 8

def type_mapper
  @type_mapper ||= {
      integer:  'Int',
      string:   'String',
      datetime: 'String',
      boolean:  'Boolean',
      float:    'Float',
      date:     'String',
      json:     'String',
      text:     'String',
      decimal:  'Float',
      '' =>     'String',
  }
end

#type_path(model) ⇒ Object 



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# File 'lib/generators/graphql/graphql_helpers.rb', line 216

def type_path(model)
  "app/graphql/types/#{singular_route_key(model)}_type.rb"
end