Let's first upgrade Rails to v7
Upgrade Rails to v7
// In Gemfile
gem 'rails', '~> 7.0.0' # Change to this
// In the terminal
$ bundle update
Upgrade rails packages
In package.json, update all rails packages
$ yarn upgrade @rails/actioncable --latest
$ yarn upgrade @rails/activestorage --latest
$ yarn upgrade @rails/ujs --latest
$ yarn upgrade @rails/webpacker --latest
Run update rails task
// In terminal
$ bin/rails app:update
Verify framework defaults
// In config/application.rb
# old
config.load_defaults 6.1 # Change to 7.0
# new
config.load_defaults 7.0 # After change to 7.0
If you encountered this error
PG::UndefinedTable: ERROR: relation "active_storage_blobs" does not exist
Then do the following:
// In terminal
$ rails active_storage:install
It will create a create_active_storage_tables.active_storage.rb file in db/migrate, then
// In terminal
$ rails db:migrate
Then, go back to Verify framework defaults section, and proceed.
Read this stackoverflow solution
Now, we will proceed to install bootstrap v5.
Install bootstrap and popperjs/core to dependencies
// In terminal
$ yarn add bootstrap and popperjs/core
So, your package.json file should have these 2 lines added:
"dependencies": {
"@popperjs/core": "^2.11.5",
"bootstrap": "^5.1.3"
}
Note: The versions here might be different but since our purpose is to install bootstrap v5, it must be something similar to 5.x.x.
Change extract_css in default to true
// In config/webpacker.yml
default: &default
extract_css: true # Change to true
Change stylesheet_link_tag to stylesheet_pack_tag
Since the original app is still with config of Rails v6, we would use Webpacker instead of Sprockets/Asset Pipeline
// In app/views/layouts/<filename>.html.erb
// My <filename> is application, so in app/views/layouts/application.html.erb
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %> # Change this
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
Then, it should look like this:
<%= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %> # After changing
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
Note: The 'application' is your <filename>
Import bootstrap in app/javascript
In app/javascript create a folder stylesheets and create application.scss in the stylesheets folder
// The file structure should look like this
// Note application.scss can be changed to <filename.scss>
app
|_ javascript
|_ stylesheets
|_ application.scss
Then, import the bootstrap in the file
// In app/javascript/stylesheets/application.scss
@import "bootstrap"
Then, put the following code in the bottom of the app/javascript/packs/application.js file
// In app/javascript/packs/application.js
import "bootstrap"
import "../stylesheets/application"
// Remember to change it to <filename>
Now, let's do testing
In app/views/layouts/application.html.erb, put the following code in your <body> tag and before the <%= yield %> tag.
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
<%= yield %>
</body>
Check whether the navbar (dropdown etc) is working.
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