Allow editing of posts

slices/admin/commands/posts/update.rb

@@ -0,0 +1,19 @@
+module Admin
+  module Commands
+    module Posts
+      class Update
+        include Deps[
+                  "repos.post_repo",
+                  "renderers.markdown"
+                ]
+
+        def call(params:)
+          attrs_to_replace = {}
+          attrs_to_replace[:content] = markdown.call(content: params[:body]) if params[:body]
+
+          post_repo.update(params[:id], attrs_to_replace)
+        end
+      end
+    end
+  end
+end