Optional attribute in activemodel serializer in ruby on rails

Question

I have following two Serializer class. In index controller I want skip loading project_products, only show/edit method I want to fetch project_product details.

class ProjectSerializer < ActiveModel::Serializer
      attributes :id, :name, :category, :project_category_id, :status, :description
      has_many :project_products
    end

class ProjectProductSerializer < ActiveModel::Serializer
  attributes :id, :name, :quantity
end

Controller:

  def index
    respond_with @projects
  end

def load_projects
    @projects = current_organization.projects.includes(:project_category)
  end

To sum up, you do not want to load project_products in show/edit ? — Defoncesko, Nov 05 '15 at 14:00
hi @Defoncesko Just opposite i want to load project_products in show/edit but not in index — Santi, Nov 05 '15 at 14:37
So you want to remove project_products from your JSON response ? — Defoncesko, Nov 05 '15 at 16:19
Yes, i want to remove project_products form JSON response for index function — Santi, Nov 06 '15 at 10:36

Defoncesko · Answer 1 · 2015-11-06T14:37:30.700

0

Try to override association methods

 class ProjectSerializer < ActiveModel::Serializer
      attributes :id, :name, :category, :project_category_id, :status, :description
      has_many :project_products

    def project_products
        if current_page?(edit_path_url)
            object.comments
        else
            object.comments = nil
    end

end

edited Nov 06 '15 at 14:37

answered Nov 06 '15 at 10:40

Defoncesko

657
5
25

Thanks for your help but when i place the code `respond_with @projects.to_json(:except => ["project_products"])` it ignores my active serializer and showing all fields form projects table – Santi Nov 06 '15 at 11:36
That 's what you are using ? https://github.com/rails-api/active_model_serializers – Defoncesko Nov 06 '15 at 13:18
Did you try to override association methods and inside select what you need to return with conditions on path ? – Defoncesko Nov 06 '15 at 14:32
Simply i want to fetch some fields from project table when listing projects. And want product listing along with project details (not all fields) in project details page. obviously using activeModelSerializer – Santi Nov 06 '15 at 15:03

score 0 · Answer 2 · answered Mar 27 '17 at 17:43

0

You can use the "except" param when creating the serializer instance:

respond_with @projects, except: project_products

(when the index controller action)

answered Mar 27 '17 at 17:43

Tonatiuh

2,205
1
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Optional attribute in activemodel serializer in ruby on rails

2 Answers2