Module: QueryInterface::Server::Resource::InstanceMethods

Defined in:
lib/query-interface-server/resource.rb

Instance Method Summary collapse

Instance Method Details

#order_query(order) ⇒ Object 



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# File 'lib/query-interface-server/resource.rb', line 28

def order_query(order)
  order.each do |field|
    direction = :asc
    if field.starts_with?('-')
      field = field[1..-1]
      direction = :desc
    end
    @instances = query_send("order_#{field}_#{direction}") do
      @instances.order_append(Sequel.send(direction, field.to_sym))
    end
  end
end

#query ⇒ Object 



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# File 'lib/query-interface-server/resource.rb', line 41

def query
  default_data = {"conditions" => [], "with" => [], "order" => [] }
  if query_data = params[:query_data]
    unless query_data.is_a?(Hash)
      query_data = JSON.parse(query_data)
    end
    query_data = default_data.merge(query_data)

    @instances = query_model.filter.select_all(query_model.table_name)
    query_data["conditions"].each do |key, value|
      @instances = query_send("filter_#{key}", value)
    end

    query_data["with"].each do |field|
      @instances = query_send("with_#{field}")
    end

    order = query_data['order'] << "#{query_model.table_name}__id"
    order_query(order)

    case query_data["mode"].to_sym
    when :evaluate
      @result = @instances
    when :count
      @result = {count: @instances.count}
    when :ids
      id_selector = "#{query_model.table_name}__id".to_sym
      @result = @instances.select(id_selector).map(&:id)
    when :paginate
      page = query_data["page"].to_i
      per_page = query_data["per_page"].to_i
      @result = {total: @instances.count, objects: @instances.paginate(page, per_page)}
    when :first
      @result = @instances.first
    when :last
      @result = @instances.last
    else
      return head :unprocessable_entity
    end
    if @result
      respond_with(@result)
    else
      head :not_found
    end
  else
    head :unprocessable_entity
  end
end

#query_send(method_name, *args) ⇒ Object 



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# File 'lib/query-interface-server/resource.rb', line 16

def query_send(method_name, *args)
  if respond_to?(method_name)
    send(method_name, *args)
  elsif @instances.respond_to?(method_name)
    @instances.send(method_name, *args)
  elsif block_given?
    yield(*args)
  else
    raise Exception, "method #{method_name} not found"
  end
end