Initial commit

lib/adamantium/persistence/relations/post_tags.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module Adamantium
+  module Persistence
+    module Relations
+      class PostTags < ROM::Relation[:sql]
+        schema :post_tags, infer: true do
+          associations do
+            belongs_to :post
+            belongs_to :tag
+          end
+        end
+
+        auto_struct(true)
+      end
+    end
+  end
+end

lib/adamantium/persistence/relations/posts.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+module Adamantium
+  module Persistence
+    module Relations
+      class Posts < ROM::Relation[:sql]
+        schema :posts, infer: true do
+          associations do
+            has_many :post_tags
+            has_many :tags, through: :post_tags
+          end
+        end
+
+        auto_struct(true)
+
+        def published
+          where(self[:published_at] <= Time.now)
+        end
+      end
+    end
+  end
+end

lib/adamantium/persistence/relations/tags.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module Adamantium
+  module Persistence
+    module Relations
+      class Tags < ROM::Relation[:sql]
+        schema :tags, infer: true do
+          associations do
+            belongs_to :post_tag
+            belongs_to :post, through: :post_tag
+          end
+        end
+
+        auto_struct(true)
+      end
+    end
+  end
+end