gem wicked pdf

corsego · Apr 24, 2021 · c09d4f7 · c09d4f7
1 parent 0c886fb
commit c09d4f7
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diff --git a/Gemfile b/Gemfile
@@ -57,3 +57,5 @@ gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
 gem 'devise'
 gem "faker"
+gem 'wicked_pdf'
+gem 'wkhtmltopdf-binary'
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -207,6 +207,9 @@ GEM
     websocket-driver (0.7.3)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
+    wicked_pdf (2.1.0)
+      activesupport
+    wkhtmltopdf-binary (0.12.6.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     zeitwerk (2.4.2)
@@ -234,6 +237,8 @@ DEPENDENCIES
   web-console (>= 4.1.0)
   webdrivers
   webpacker (~> 5.0)
+  wicked_pdf
+  wkhtmltopdf-binary
 
 RUBY VERSION
    ruby 2.7.2p137

diff --git a/app/assets/stylesheets/application.css b/app/assets/stylesheets/application.css
@@ -10,6 +10,5 @@
  * files in this directory. Styles in this file should be added after the last require_* statement.
  * It is generally better to create a new file per style scope.
  *
- *= require_tree .
  *= require_self
  */
diff --git a/app/assets/stylesheets/pdf.scss b/app/assets/stylesheets/pdf.scss
@@ -0,0 +1,7 @@
+table, th, td {
+  border: 1px solid black;
+  border-collapse: collapse;
+} 
+table {
+  width: 100%;
+}
diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
@@ -3,9 +3,21 @@ class PostsController < ApplicationController
 
   def index
     @posts = Post.all
+    respond_to do |format|
+      format.html
+      format.pdf do
+        render pdf: "Posts: #{@posts.count}", template: "posts/index.html.erb"
+      end
+    end
   end
 
   def show
+    respond_to do |format|
+      format.html
+      format.pdf do
+        render pdf: "Post id: #{@post.id}", template: "posts/post.html.erb"
+      end
+    end
   end
 
   def new

diff --git a/app/views/layouts/pdf.html.erb b/app/views/layouts/pdf.html.erb
@@ -0,0 +1,16 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset='utf-8' />
+    <%= wicked_pdf_stylesheet_link_tag "pdf" -%>
+    <%= wicked_pdf_javascript_include_tag "number_pages" %>
+  </head>
+  <body onload='number_pages'>
+    <div id="header">
+      <%= wicked_pdf_image_tag 'mysite.jpg' %>
+    </div>
+    <div id="content">
+      <%= yield %>
+    </div>
+  </body>
+</html>
diff --git a/app/views/posts/index.html.erb b/app/views/posts/index.html.erb
@@ -1,7 +1,7 @@
 <h1>Posts</h1>
 
 <%= link_to 'New Post', new_post_path %>
-
+<%= link_to "Posts PDF", posts_path(format: :pdf) %>
 <br>
 
 <table>
@@ -10,7 +10,7 @@
       <th>Id</th>
       <th>Title</th>
       <th>Content</th>
-      <th colspan="3"></th>
+      <th colspan="4"></th>
     </tr>
   </thead>
 
@@ -20,6 +20,7 @@
         <td><%= post.id %></td>
         <td><%= post.title %></td>
         <td><%= simple_format(post.content) %></td>
+        <td><%= link_to 'PDF', post_path(post, format: :pdf) %></td>
         <td><%= link_to 'Show', post %></td>
         <td><%= link_to 'Edit', edit_post_path(post) %></td>
         <td><%= link_to 'Destroy', post, method: :delete, data: { confirm: 'Are you sure?' } %></td>

diff --git a/app/views/posts/post.html.erb b/app/views/posts/post.html.erb
@@ -0,0 +1,17 @@
+PDF generation date:
+<%= Time.zone.now %>
+
+<p>
+  <strong>Post ID:</strong>
+  <%= @post.id %>
+</p>
+
+<p>
+  <strong>Title:</strong>
+  <%= @post.title %>
+</p>
+
+<p>
+  <strong>Content:</strong>
+  <%= simple_format(@post.content) %>
+</p>
diff --git a/config/initializers/mime_types.rb b/config/initializers/mime_types.rb
@@ -2,3 +2,4 @@
 
 # Add new mime types for use in respond_to blocks:
 # Mime::Type.register "text/richtext", :rtf
+Mime::Type.register "application/pdf", :pdf
diff --git a/config/initializers/wicked_pdf.rb b/config/initializers/wicked_pdf.rb
@@ -0,0 +1,31 @@
+# WickedPDF Global Configuration
+#
+# Use this to set up shared configuration options for your entire application.
+# Any of the configuration options shown here can also be applied to single
+# models by passing arguments to the `render :pdf` call.
+#
+# To learn more, check out the README:
+#
+# https://github.com/mileszs/wicked_pdf/blob/master/README.md
+
+WickedPdf.config = {
+  # Path to the wkhtmltopdf executable: This usually isn't needed if using
+  # one of the wkhtmltopdf-binary family of gems.
+  # exe_path: '/usr/local/bin/wkhtmltopdf',
+  #   or
+  # exe_path: Gem.bin_path('wkhtmltopdf-binary', 'wkhtmltopdf')
+
+  # Layout file to be used for all PDFs
+  # (but can be overridden in `render :pdf` calls)
+  # layout: 'pdf.html',
+  layout: "pdf",
+  orientation: "Portrait", 
+  page_size: "A4"
+
+
+  # Using wkhtmltopdf without an X server can be achieved by enabling the
+  # 'use_xvfb' flag. This will wrap all wkhtmltopdf commands around the
+  # 'xvfb-run' command, in order to simulate an X server.
+  #
+  # use_xvfb: true,
+}