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Lines changed: 61 additions & 6 deletions

‎app/assets/stylesheets/application.css‎

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@@ -58,6 +58,16 @@ h1 {
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background: #dee2e6;
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}
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.programming-language-list-item .name {
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font-size: 20px;
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font-weight: bold;
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margin-bottom: 10px;
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}
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.programming-language-list-item .tagline {
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font-style: italic;
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}
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article p {
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font-size: 20px;
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line-height: 1.3;

‎app/controllers/application_controller.rb‎

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class ApplicationController < ActionController::Base
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helper_method :page_title
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def page_title
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'Programming languages'
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end
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end

‎app/controllers/programming_languages_controller.rb‎

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end
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def show
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programming_language = ProgrammingLanguage.find!(params[:language])
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raise ActiveRecord::RecordNotFound unless programming_language?
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# Render the file for the programming language
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render programming_language.slug
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end
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private
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def programming_language
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return nil unless params[:language].present?
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ProgrammingLanguage.find(params[:language])
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end
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def programming_language?
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programming_language.present?
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end
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def page_title
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programming_language.try(:page_title) || super
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end
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end

‎app/models/programming_language.rb‎

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end
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def slug
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# The filename for the template, extension(s) removed
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pathname.basename.to_s.split('.').first
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end
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def path
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"/#{slug}"
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end
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def name
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frontmatter_data['name']
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[
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'first_introduced',
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'name',
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'tagline',
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].each do |attribute|
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# attribute: Get the value of attribute from frontmatter_data
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define_method(attribute) do
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frontmatter_data[attribute]
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end
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# attribute?: check if attribute is present?
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define_method("#{attribute}?") do
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send(attribute).present?
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end
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end
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def first_introduced
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frontmatter_data['first_introduced']
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def page_title
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frontmatter_data['page_title'].presence || "The #{name} Progamming Language"
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end
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def <=>(other)

‎app/views/layouts/application.html.erb‎

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<!DOCTYPE html>
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<html>
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<head>
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<title>FrontmatterOnRailsDev</title>
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<title><%= page_title %></title>
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<%= csrf_meta_tags %>
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<%= csp_meta_tag %>

‎app/views/programming_languages/assembly.html.slim‎

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---
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name: Assembly
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tagline: Unleashing the Power of Bare Metal Brilliance.
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first_introduced: 1947
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---
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‎app/views/programming_languages/c.html.slim‎

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---
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name: C
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tagline: The Foundation of Modern Computing, C You at the Core.
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first_introduced: 1972
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---
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‎app/views/programming_languages/crystal.html.slim‎

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---
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name: Crystal
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tagline: Crystal Clear Code, Performance Unleashed.
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first_introduced: 2014
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---
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‎app/views/programming_languages/index.html.slim‎

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li.programming-language-list-item
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= link_to(programming_language.path) do
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.name= programming_language.name
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.tagline= programming_language.tagline

‎app/views/programming_languages/lisp.html.slim‎

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---
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name: Lisp
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tagline: Elegance in Parentheses, Power in Simplicity.
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first_introduced: 1960
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---
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