Class: Solargraph::Rails::Model

Inherits:
Object
  • Object
show all
Defined in:
lib/solargraph/rails/model.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.instance ⇒ Object 



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# File 'lib/solargraph/rails/model.rb', line 4

def self.instance
  @instance ||= self.new
end

.valid_filename?(filename) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/solargraph/rails/model.rb', line 8

def self.valid_filename?(filename)
  filename.include?('app/models')
end

Instance Method Details

#extract_custom_class_name(ast) ⇒ Object 



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# File 'lib/solargraph/rails/model.rb', line 92

def extract_custom_class_name(ast)
  options = ast.children[3..-1].find { |n| n.type == :hash }
  return unless options

  class_name_pair =
    options.children.find do |n|
      n.children[0].deconstruct == %i[sym class_name] &&
        n.children[1].type == :str
    end
  class_name_pair && class_name_pair.children.last.children.last
end

#plural_association(ns, ast) ⇒ Object 



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# File 'lib/solargraph/rails/model.rb', line 65

def plural_association(ns, ast)
  relation_name = ast.children[2].children.first
  class_name =
    extract_custom_class_name(ast) ||
      relation_name.to_s.singularize.camelize

  Util.build_public_method(
    ns,
    relation_name.to_s,
    types: ["ActiveRecord::Associations::CollectionProxy<#{class_name}>"],
    location: Util.build_location(ast, ns.filename)
  )
end

#process(source_map, ns) ⇒ Object 



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# File 'lib/solargraph/rails/model.rb', line 12

def process(source_map, ns)
  return [] unless self.class.valid_filename?(source_map.filename)

  walker = Walker.from_source(source_map.source)
  pins = []

  walker.on :send, [nil, :belongs_to] do |ast|
    pins << singular_association(ns, ast)
  end

  walker.on :send, [nil, :has_one] do |ast|
    pins << singular_association(ns, ast)
  end

  walker.on :send, [nil, :has_many] do |ast|
    pins << plural_association(ns, ast)
  end

  walker.on :send, [nil, :has_and_belongs_to_many] do |ast|
    pins << plural_association(ns, ast)
  end

  walker.on :send, [nil, :scope] do |ast|
    next if ast.children[2].nil?
    name = ast.children[2].children.last

    method_pin =
      Util.build_public_method(
        ns,
        name.to_s,
        types: ns.return_type.map(&:tag),
        scope: :class,
        location: Util.build_location(ast, ns.filename)
      )

    if ast.children.last.type == :block
      location = ast.children.last.location
      block_pin =
        source_map.locate_block_pin(location.line, location.column)
      method_pin.parameters.concat(block_pin.parameters.clone)
    end
    pins << method_pin
  end

  walker.walk
  if pins.any?
    Solargraph.logger.debug(
      "[Rails][Model] added #{pins.map(&:name)} to #{ns.path}"
    )
  end
  pins
end

#singular_association(ns, ast) ⇒ Object 



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# File 'lib/solargraph/rails/model.rb', line 79

def singular_association(ns, ast)
  relation_name = ast.children[2].children.first
  class_name =
    extract_custom_class_name(ast) || relation_name.to_s.camelize

  Util.build_public_method(
    ns,
    relation_name.to_s,
    types: [class_name],
    location: Util.build_location(ast, ns.filename)
  )
end