Add communities and topics

app/controllers/topics_controller.rb

@@ -0,0 +1,47 @@
+class TopicsController < ApplicationController
+
+  before_action :set_community
+
+  skip_authorization_check
+
+  def new
+    @topic = Topic.new
+  end
+
+  def create
+    @topic = Topic.new(topic_params.merge(author: current_user, community_id: params[:community_id]))
+
+    if @topic.save
+      redirect_to community_path(@community), notice: I18n.t('flash.actions.create.topic')
+    else
+      render :new
+    end
+  end
+
+  def show
+    @topic = Topic.find(params[:id])
+  end
+
+  def edit
+    @topic = Topic.find(params[:id])
+  end
+
+  def update
+    @topic = Topic.find(params[:id])
+    if @topic.update(topic_params)
+      redirect_to community_path(@community), notice: t('topic.update.notice')
+    else
+      render :edit
+    end
+  end
+
+  private
+
+  def topic_params
+    params.require(:topic).permit(:title, :community_id)
+  end
+
+  def set_community
+    @community = Community.find(params[:community_id])
+  end
+end