#19 ひとまづ表示のみ

backend/app/controllers/wiki_pages_controller.rb

@@ -1,16 +1,24 @@
 class WikiPagesController < ApplicationController
-  def index
-  end
-
   def show
-  end
-
-  def create
+    p params
+    wiki_page = WikiPage.find_by(title: params[:title])
+    if wiki_page
+      render plain: wiki_page.markdown
+    else
+      head :not_found
+    end
   end
 
   def update
-  end
+    return head :unauthorized unless current_user
 
-  def destroy
+    title = params[:title]
+    wiki_page = WikiPage.find_by(title: title)
+    unless wiki_page
+      wiki_page = WikiPage.new(title: title, created_user: current_user, updated_user: current_user)
+    end
+    wiki_page.markdown = params[:markdown]
+    wiki_page.save!
+    head :ok
   end
 end

backend/app/controllers/wiki_proxy_controller.rb

@@ -1,31 +0,0 @@
-require 'net/http'
-require 'uri'
-
-
-class WikiProxyController < ApplicationController
-  def edit
-    tag = params[:tag]
-    uri = "http://localhost:4567/gollum/edit/#{ URI.encode_www_form_component(tag) }"
-    begin
-      res = fetch_with_redirect(uri)
-      render html: res.body.html_safe, content_type: res.content_type
-    rescue => e
-      render plain: "Wiki システムとの通信に失敗しました：#{ e.message }", status: 502
-    end
-  end
-
-  private
-
-  def fetch_with_redirect uri_str, limit = 5
-    raise 'Too many redirects' if limit == 0
-
-    uri = URI.parse(uri_str)
-    res = Net::HTTP.get_response(uri)
-    if res.is_a? Net::HTTPRedirection
-      location = res['location']
-      fetch_with_redirect(location, limit - 1)
-    else
-      res
-    end
-  end
-end

backend/app/models/wiki_page.rb

@@ -1,11 +1,34 @@
+require 'gollum-lib'
+
+
 class WikiPage < ApplicationRecord
+  WIKI_PATH = Rails.root.join('wiki').to_s
+
   belongs_to :tag, optional: true
   belongs_to :created_user, class_name: 'User', foreign_key: 'created_user_id'
   belongs_to :updated_user, class_name: 'User', foreign_key: 'updated_user_id'
 
   validates :title, presence: true, length: { maximum: 255 }, uniqueness: true
 
-  def gollum_path
-    "wiki/#{ title.parameterize }.md"
+  def markdown
+    wiki = Gollum::Wiki.new(WIKI_PATH)
+    page = wiki.page(title)
+    page&.raw_data
+  end
+
+  def markdown= content
+    wiki = Gollum::Wiki.new(WIKI_PATH)
+
+    page = wiki.page(title)
+
+    commit_info = { message:  "Update #{ title }",
+                    name:     current_user.id,
+                    email:    'dummy@example.com' }
+
+    if page
+      page.update(content, commit: commit_info)
+    else
+      wiki.write_page(title, :markdown, content, commit_info)
+    end
   end
 end