{"id":7890,"date":"2019-09-26T12:18:25","date_gmt":"2019-09-26T12:18:25","guid":{"rendered":"https:\/\/www.botreetechnologies.com\/blog\/?p=7890"},"modified":"2021-01-08T11:36:48","modified_gmt":"2021-01-08T06:06:48","slug":"how-to-customize-taxon-images-in-spree-3-7","status":"publish","type":"post","link":"https:\/\/www.botreetechnologies.com\/blog\/how-to-customize-taxon-images-in-spree-3-7\/","title":{"rendered":"How to customize Taxon Images in Spree 3.7?"},"content":{"rendered":"\n

Recently we have migrated from Spree 2.3 to Spree 3.7. We faced many challenges as a lot has been changed in v3.7 compared to v2.3. Below are a few notable changes<\/p>\n\n\n\n

  1. The new style of extending or customizing the model using module.prepend<\/code>. Earlier it was being done using class_eval<\/code><\/li>
  2. Added support of Active Storage. However, Paperclip support is still available but will be deprecated in the next version (Spree 4.0).<\/li>
  3. Factory Girl became Factory Bot<\/li>
  4. Removed image specific columns from Taxons<\/code> table<\/li><\/ol>\n\n\n\n

    We are going to discuss point 4, how to customize the icon or other images for the Taxons.<\/p>\n\n\n\n

    By default, spree provides an icon for the taxon. Our app needed a page header image for the taxon. If a user visits the specific taxon, let’s say clothing, then he should see the clothing image in the header. So in our case, there were two attachments for the taxon.<\/p>\n\n\n\n

    1. Icon<\/li>
    2. Header Image<\/li><\/ol>\n\n\n\n

      In Spree 2.3, there were columns of icons in the Taxon table itself. And the declaration was present in the model like below:<\/p>\n\n\n\n

      \"Default<\/figure><\/div>\n\n\n\n

      Now we need a header image for the taxons as well. So here is the code snippet in taxon_decorator.rb to support the header image.<\/p>\n\n\n\n

      \"Spree<\/figure><\/div>\n\n\n\n

      Below are the columns for the header image which paperclip uses to manage the attachments.<\/p>\n\n\n\n

      \"Spree<\/figure><\/div>\n\n\n\n

      Read Also: Spree 3.6 with Rails 5.2, Ruby 2.5, Active Storage and Multi Store Support!<\/a><\/p><\/blockquote>\n\n\n\n

      Now, let\u2019s see how it has been changed in Spree 3.7!<\/p>\n\n\n\n

      Spree 3.7 started using Single Table Inheritance(STI)<\/strong> and Polymorphism <\/strong>for various models. Storing images for the different models is the classic case for STI associations. For each attachment, there is a separate model file which would be inherited from Spree::Asset<\/code> class.<\/p>\n\n\n\n

      Spree::Assets<\/code> is a table which stores all attachments with column type<\/code> and two more columns viewable_type<\/code> and viewable_id<\/code><\/p>\n\n\n\n

      Here, type column<\/code> represents STI and viewable_type, viewable_id<\/code>   represents the polymorphic association.<\/p>\n\n\n\n

      We have made below changes to add a header image to the taxon.<\/p>\n\n\n\n

      Add below relationship in taxon_decorator.rb<\/p>\n\n\n\n

      has_one :header_image, as: :viewable, dependent: :destroy, class_name: 'Spree::TaxonHeaderImage'<\/code><\/p>\n\n\n\n

      Now, create taxon_header_image.rb<\/code> in models\/spree directory and use below code<\/p>\n\n\n\n