Bring app in line with Hanami 2.1.0 base

app/relations/posts.rb

@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Adamantium
+  module Relations
+    class Posts < ROM::Relation[:sql]
+      schema :posts, infer: true do
+        associations do
+          has_many :post_tags
+          has_many :tags, through: :post_tags
+
+          has_many :post_trips
+          has_many :trips, through: :post_trips
+
+          has_many :webmentions
+        end
+      end
+
+      auto_struct(true)
+
+      def published
+        where(self[:published_at] <= Time.now)
+      end
+
+      def weekly
+        ref = post_tags.where(tag_id: "70").select(:post_id).dataset
+        where(id: ref)
+      end
+
+      def non_weekly
+        ref = post_tags.where(tag_id: "70").select(:post_id).dataset
+        exclude(id: ref)
+      end
+
+      def published_between(start_date, end_date)
+        where(self[:published_at] >= start_date)
+          .where(self[:published_at] <= end_date)
+      end
+    end
+  end
+end