I'm currently developing with Rails5 and React.
And to use React, we use a gem called react-rails, and this gem uses webpacker.
At that time, in React, js.erb file was created to refer to the image precompiled with assets.
The information I looked up on the net had rails-erb-loader, so it should have been readable.
However, SyntaxError occurred.
I will write the details below.
ErrorLog
# ./bin/webpack-dev-server
~~~
Module build failed (from ./node_modules/babel-loader/lib/index.js):
SyntaxError: /home/myproject/app/javascript/components/sample.js.erb: Unexpected token (1:1)
> 1 | <% helpers = ActionController::Base.helpers %>
sample.js.erb
<% helpers = ActionController::Base.helpers %>
export const png_path = "<%= helpers.image_path('sample.png') %>"
package.json
{
"name": "Sample",
"private": true,
"dependencies": {
"#babel/preset-react": "^7.0.0",
"#rails/webpacker": "^4.0.7",
"babel-plugin-transform-react-remove-prop-types": "^0.4.24",
"lodash": "^4.17.14",
"prop-types": "^15.7.2",
"rails-erb-loader": "^5.5.2",
"react": "^16.10.2",
"react-dom": "^16.10.2",
"react_ujs": "^2.6.0",
"reactjs-popup": "^1.4.1"
},
"devDependencies": {
"webpack-dev-server": "^3.8.2"
}
}
How can I solve this error?
We will wait for the answer.
This issue was not resolved. Sorry
Related
Trying to isolate an error I'm getting with the basic setup of a new blog site using the below just so I can test Action_Text for the create blog section.
Every-time i create the below- it works great until i change the <%= form.text_area :content %> to <%= form.rich_text_area :content %> then the text area vanishes????
package.json
{
"name": "app",
"private": "true",
"dependencies": {
"#hotwired/stimulus": "^3.1.0",
"#hotwired/turbo-rails": "^7.1.3",
"#popperjs/core": "^2.11.5",
"#rails/actiontext": "^7.0.3-1",
"bootstrap": "^5.2.0",
"bootstrap-icons": "^1.9.1",
"esbuild": "^0.14.54",
"sass": "^1.54.3",
"trix": "^2.0.0-beta.0"
},
"scripts": {
"build": "esbuild app/javascript/*.* --bundle --sourcemap --outdir=app/assets/builds --public-path=assets",
"build:css": "sass ./app/assets/stylesheets/application.bootstrap.scss:./app/assets/builds/application.css --no-source-map --load-path=node_modules"
}
}
rvm gemset create project
rails new project --css bootstrap
rails g scaffold blog title:string content:text
Rails db:migrate
Rails action_text:install
Rails db:migrate
class Blog < ApplicationRecord
validates_presence_of :title
has_rich_text :content
end
<%= form.rich_text_area :content %>
I have searched for days online, tested, broken this multiple times and still cant find a solution.
Any assistance would be great.
Thank you
Im trying to include easyMDE in my rails 6 project. I was including it from an external source before and that worked (via unpkg.com). To improve loading times I wanted to include it into my project via yarn.
I did the following steps:
yarn add easymde --save
In application.js:
require("easymde");
But when reloading the page I get the following error:
Uncaught ReferenceError: EasyMDE is not defined
When I run webpack-dev-server I see that easymde.js gets compiled:
Built at: 08/11/2020 3:16:09 PM
Asset Size Chunks Chunk Names
js/application-caadc00338c3578fee39.js 1.2 MiB application [emitted] [immutable] application
js/application-caadc00338c3578fee39.js.map 1.39 MiB application [emitted] [dev] application
js/easymde-1f6737d8a160c1180536.js 872 KiB easymde [immutable] easymde
js/easymde-1f6737d8a160c1180536.js.map 805 KiB easymde [dev] easymde
manifest.json 675 bytes [emitted]
ℹ ｢wdm｣: Compiled successfully.
application.js:
// This file is automatically compiled by Webpack, along with any other files
// present in this directory. You're encouraged to place your actual application logic in
// a relevant structure within app/javascript and only use these pack files to reference
// that code so it'll be compiled.
require("#rails/ujs").start()
require("turbolinks").start()
require("#rails/activestorage").start()
require("channels")
// Uncomment to copy all static images under ../images to the output folder and reference
// them with the image_pack_tag helper in views (e.g <%= image_pack_tag 'rails.png' %>)
// or the `imagePath` JavaScript helper below.
//
// const images = require.context('../images', true)
// const imagePath = (name) => images(name, true)
require("easymde")
package.json:
{
"name": "logbook_v2",
"private": true,
"dependencies": {
"#rails/actioncable": "^6.0.0",
"#rails/activestorage": "^6.0.0",
"#rails/ujs": "^6.0.0",
"#rails/webpacker": "4.2.2",
"easymde": "^2.11.0",
"turbolinks": "^5.2.0"
},
"version": "0.1.0",
"devDependencies": {
"webpack-dev-server": "^3.11.0"
}
}
Let me know if you need any more code. :-)
Update
Here is the file where I use the editor:
<%= render "components/sidebar" %>
<div class="form-wrapper post-form-wrapper">
<%= form_with model: #post, class: 'form post-form' do |f| %>
<%= f.text_field :name, placeholder: 'title', class: 'field post-field' %>
<%= f.text_area :content, id: 'mde' %>
<%= f.submit 'create post', class: 'form-button post-form-button' %>
<%end%>
</div>
<script type="text/javascript" charset="utf-8">
var easyMDE = new EasyMDE({
element: document.getElementById("mde"),
placeholder: "Write your post here...",
autosave: {
enabled: true,
uniqueId: <%= current_user.id %>
},
blockStyles: {
code: "~~~"
},
minHeight: "calc(100vh - 320px)",
renderingConfig: {
codeSyntaxHighlighting: true
},
promptURLs: true,
toolbar: ["bold", "italic", "strikethrough", "heading", "|", "code", "quote", "clean-block", "|", "link", "image", "|", "unordered-list", "ordered-list", "|", "preview", "side-by-side", "fullscreen", "|", "guide"]
});
</script>
If I put in import * as EasyMDE from 'easymde'; (suggested by #Ninh Le) at the beginning of the script I get this error: Uncaught SyntaxError: import declarations may only appear at top level of a module
Easymde using module.exports, you can find it here
So to use it in with yarn and rails 6 I think the way is in js file:
import * as EasyMDE from 'easymde';
var easyMDE = new EasyMDE({element: document.getElementById('my-text-area')});
Edit: To make it can call globally, call this in application.js file
import * as EasyMDE from 'easymde';
window.EasyMDE = EasyMDE;
I have these errors in a Rails 6 app and all javascript is not working:
ERROR in ./app/javascript/packs/application.js
Module not found: Error: Can't resolve '#rails/activestorage' in '/Users/jrsahuquillo/Dropbox/myappname/app/javascript/packs'
# ./app/javascript/packs/application.js 9:0-31
ERROR in ./app/javascript/packs/application.js
Module not found: Error: Can't resolve '#rails/ujs' in '/Users/jrsahuquillo/Dropbox/myappname/app/javascript/packs'
# ./app/javascript/packs/application.js 5:0-21
My package.json is:
{
"name": "myappname",
"private": true,
"dependencies": {
"#rails/actioncable": "^6.0.0-alpha",
"#rails/activestorage": "^6.0.2",
"#rails/ujs": "^6.0.2",
"#rails/webpacker": "4.2.0",
"bootstrap": "^4.4.1",
"jquery": "^3.4.1",
"jquery-ui": "^1.12.1",
"jquery-ui-dist": "^1.12.1",
"popper.js": "^1.16.0",
"serialize-javascript": "2.1.2",
"turbolinks": "^5.2.0"
},
"version": "0.1.0",
"devDependencies": {
"webpack-dev-server": "^3.8.0"
},
"optionalDependencies": {
"fsevents": "2.0.0"
}
}
In application.js:
require("#rails/ujs").start();
require("turbolinks").start();
require("#rails/activestorage").start();
require("channels");
require("bootstrap/dist/js/bootstrap");
In app/views/layouts/application.html.erb:
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
It was working ok, but I don´t know when and why it left working.
Could someone help me?
Sorry, I solved it yet. Previously to having the error, I installed yarn autoclean, and I discovered later that in .yarnclean there was this:
# asset directories
docs
doc
website
images
assets
I removed this, and error disappeared.
Run the commands. the node_modules has a problem i guess.
yarn add rails-ujs turbolinks
npm install rails-ujs turbolinks
Encountered this error when running system tests and managed to fix it by removing node_modules folder and anything that was cached in /tmp folder and then reran yarn install.
Cause of the issue for me was:
Had recently ran yarn autoclean --init yarn autoclean --force and then tried to reverse it since everything was messed up.
Climbing the learning curve with Webpacker and Rails 6.
I've installed Boostrap 4 using Yarn and Webpacker. When I try play with Bootstrap components in a browser's JS console then I get: TypeError: $.fn.button is undefined.
If I remove the Yarn installation add a Bootstrap CDN link in the head of the HTML (the old way) everything works fine. When I remove the CDN links and revert to using Webpacker I get back to the error above.
Here is my Webpacker setup:
// package.json
{
"name": "depot",
"private": true,
"dependencies": {
"#rails/actioncable": "^6.0.0-alpha",
"#rails/activestorage": "^6.0.0-alpha",
"#rails/ujs": "^6.0.0-alpha",
"#rails/webpacker": "^4.0.7",
"bootstrap": "4.2.1",
"jquery": "^3.4.1",
"popper.js": "^1.15.0",
"turbolinks": "^5.2.0"
},
"version": "0.1.0",
"devDependencies": {
"webpack-dev-server": "^3.8.0"
}
}
// enviornment.js
const { environment } = require("#rails/webpacker");
const webpack = require("webpack");
environment.plugins.append(
"Provide",
new webpack.ProvidePlugin({
$: 'jquery/src/jquery',
jQuery: 'jquery/src/jquery',
Popper: ["popper.js", "default"]
})
);
module.exports = environment;
// application.js
require("#rails/ujs").start();
require("turbolinks").start();
require("#rails/activestorage").start();
require("channels");
require("jquery");
require("bootstrap");
import "./src/application.scss";
# layouts/application.html.haml
!!!
%html
%head
%meta{:content => "text/html; charset=UTF-8", "http-equiv" => "Content-Type"}
%title Depot
= csrf_meta_tags
= csp_meta_tag
= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track': 'reload'
= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload'
Is there something I should be doing to export the Bootstrap functions to the global namespace?
Found a forum where this was discussed: https://gorails.com/forum/how-to-use-bootstrap-with-webpack-rails-discussion
They mentioned it could be caused by having jQuery loading multiple times, with the latest declaration preventing Bootstrap's JS from loading. I couldn't find any evidence of this in my project.
For me the fix ended up being a few lines added to the webpack entry point that exposed jQuery to the browser:
# packs/application.js
import JQuery from 'jquery';
window.$ = window.JQuery = JQuery;
I noticed even I removed require 'jquery' from applications.js, jquery still appears in the compiled application.js, so I removed this from enviroment.js
$: 'jquery/src/jquery',
jQuery: 'jquery/src/jquery',
and add this to application.js
import JQuery from 'jquery';
window.$ = window.JQuery = JQuery;
restart rails server, it works!
If you want to know why see this answer
After creating a new ruby 2.6 / rails6 app and
scaffolding the destroy popup is not working.
Any idea whats wrong.. happens out of sudden..
package.json
{
"name": "untitled1",
"private": true,
"dependencies": {
"#rails/actioncable": "^6.0.0-alpha",
"#rails/activestorage": "^6.0.0-alpha",
"#rails/ujs": "^6.0.0-alpha",
"#rails/webpacker": "^4.0.6",
"turbolinks": "^5.2.0",
},
"version": "0.1.0",
"devDependencies": {
"webpack-dev-server": "^3.5.1"
}
}
console shows this error:
rails-ujs.js:22 Uncaught TypeError: Cannot set property 'Rails' of undefined
at rails-ujs.js:22
at rails-ujs.js:37
at rails-ujs.js:38
at Module.<anonymous> (rails-ujs.js:822)
at Module../node_modules/#rails/ujs/lib/assets/compiled/rails-ujs.js (rails-ujs.js:822)
at __webpack_require__ (bootstrap:19)
at Object../app/javascript/packs/application.js (application.js:6)
at __webpack_require__ (bootstrap:19)
at bootstrap:83
at bootstrap:83
github.com/rails/webpacker/issues/2109,
solves the problem,
comment out //corejs: 3, in babel.config.js
Hopefully the bug will be solved soon.
For anyone that is as catastrophically dumb as I am with this Q/A as my only possible lead (that will take you nowhere) – My issue with Rails being undefined was that my javascript_include_tag was missing. In short, make sure you have:
<!-- app/views/layouts/application.html -->
<!-- turbolinks optional -->
<%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>