Dumber code, better examples to present

RailsEventStore · Nov 24, 2023 · 60f4465 · 60f4465
1 parent 90c33c4
commit 60f4465
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Showing 3 changed files with 47 additions and 10 deletions.
diff --git a/examples/aggregate_root/lib/project_management.rb b/examples/aggregate_root/lib/project_management.rb
@@ -2,4 +2,5 @@
 
 require_relative "../../../shared/lib/project_management"
 require_relative "project_management/handler"
+require_relative "project_management/repository"
 require_relative "project_management/issue"
diff --git a/examples/aggregate_root/lib/project_management/handler.rb b/examples/aggregate_root/lib/project_management/handler.rb
@@ -1,7 +1,7 @@
 module ProjectManagement
   class Handler
     def initialize(event_store)
-      @repository = AggregateRoot::Repository.new(event_store)
+      @repository = Repository.new(event_store)
     end
 
     def call(cmd)
@@ -23,17 +23,50 @@ def call(cmd)
       raise Error
     end
 
-    def create(cmd) = with_aggregate(cmd.id) { |issue| issue.open }
-    def resolve(cmd) = with_aggregate(cmd.id) { |issue| issue.resolve }
-    def close(cmd) = with_aggregate(cmd.id) { |issue| issue.close }
-    def reopen(cmd) = with_aggregate(cmd.id) { |issue| issue.reopen }
-    def start(cmd) = with_aggregate(cmd.id) { |issue| issue.start }
-    def stop(cmd) = with_aggregate(cmd.id) { |issue| issue.stop }
-
     private
 
-    def with_aggregate(id, &block)
-      @repository.with_aggregate(Issue.new(id), "Issue$#{id}", &block)
+    def create(cmd)
+      @repository.with_aggregate(
+        Issue.new(cmd.id),
+        stream_name(cmd.id)
+      ) { |issue| issue.open }
+    end
+
+    def resolve(cmd)
+      issue = Issue.new(cmd.id)
+      @repository.load(issue, stream_name(cmd.id))
+      issue.resolve
+      @repository.store(issue, stream_name(cmd.id))
+    end
+
+    def close(cmd)
+      issue = Issue.new(cmd.id)
+      @repository.load(issue, stream_name(cmd.id))
+      issue.close
+      @repository.store(issue, stream_name(cmd.id))
+    end
+
+    def reopen(cmd)
+      issue = Issue.new(cmd.id)
+      @repository.load(issue, stream_name(cmd.id))
+      issue.reopen
+      @repository.store(issue, stream_name(cmd.id))
+    end
+
+    def start(cmd)
+      issue = Issue.new(cmd.id)
+      @repository.load(issue, stream_name(cmd.id))
+      issue.start
+      @repository.store(issue, stream_name(cmd.id))
     end
+
+    def stop(cmd)
+      issue = Issue.new(cmd.id)
+      @repository.load(issue, stream_name(cmd.id))
+      issue.stop
+      @repository.store(issue, stream_name(cmd.id))
+    end
+
+    def stream_name(id) = "Issue$#{id}"
   end
 end
diff --git a/examples/aggregate_root/lib/project_management/repository.rb b/examples/aggregate_root/lib/project_management/repository.rb
@@ -0,0 +1,3 @@
+module ProjectManagement
+  Repository = AggregateRoot::Repository
+end