{"id":11597,"date":"2024-10-28T09:55:22","date_gmt":"2024-10-28T09:55:22","guid":{"rendered":"https:\/\/www.bacancytechnology.com\/qanda\/?p=11597"},"modified":"2024-10-28T09:55:22","modified_gmt":"2024-10-28T09:55:22","slug":"database-access-with-render-json-hello-world","status":"publish","type":"post","link":"https:\/\/www.bacancytechnology.com\/qanda\/ruby-on-rails\/database-access-with-render-json-hello-world","title":{"rendered":"Why is Render json: {hello: &#8216;world&#8217;} Hitting My Database?"},"content":{"rendered":"<h3>1. Override the serialization_scope Method<\/h3>\n<p>The key issue is likely related to how Rails automatically sets the serialization_scope. By default, Rails will call current_user to establish the context for serialization. We need to override this behavior.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"ruby\">\r\nclass YourController &lt; ApplicationController\r\n    def serialization_scope\r\n      nil # Prevents Rails from using current_user as the scope for serialization\r\n    end\r\n  end<\/pre>\n<p>This ensures that current_user is not invoked during the rendering process. Setting serialization_scope to nil disables the automatic attempt to assign a scope for JSON serialization.<\/p>\n<h3>2. Skip Unnecessary Callbacks<\/h3>\n<p>Even if you&#8217;ve removed some callbacks, it&#8217;s good to ensure that any default Rails callbacks (like set_turbolinks_location_header_from_session) don\u2019t interfere with the action.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"ruby\">\r\n class YourController < ApplicationController\r\n     skip_before_action :set_turbolinks_location_header_from_session, :clean_temp_files\r\n  \r\n     def test\r\n       _process_action_callbacks.map { |c| pp c.filter }\r\n       render json: { hello: 'world' }\r\n     end\r\n   end\r\n<\/pre>\n<p>Skipping callbacks makes sure that Rails isn\u2019t triggering any logic (like session handling or file cleanup) that could indirectly cause current_user to be called.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Override the serialization_scope Method The key issue is likely related to how Rails automatically sets the serialization_scope. By default, Rails will call current_user to establish the context for serialization. We need to override this behavior. class YourController &lt; ApplicationController def serialization_scope nil # Prevents Rails from using current_user as the scope for serialization end [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-11597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ruby-on-rails"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/posts\/11597"}],"collection":[{"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/comments?post=11597"}],"version-history":[{"count":2,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/posts\/11597\/revisions"}],"predecessor-version":[{"id":11600,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/posts\/11597\/revisions\/11600"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/media\/11598"}],"wp:attachment":[{"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/media?parent=11597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/categories?post=11597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacancytechnology.com\/qanda\/wp-json\/wp\/v2\/tags?post=11597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}