I'm writing a middleman extensions but having trouble re-using the render_partial method with an erb file path outside of the main application.
Trying to do so always gives me the error
Cannot locate partial ...
I believe this is because it only accepts relative paths from the application root.
Is there a way i can render partials with absolute paths in Middleman?
I can get around the issue by requiring Erb and doing my own rendering however I'm really keen to keep the Middleman Context when rendering my extension partials.
Any help greatly appreciated.
EDIT
It turn's out this is not currently possible with Middleman v4. This line of code will only resolve relative file paths.
My work around was to write my own mini helper class that utilises ERB to render partials from absolute paths. I was able to keep the Middleman template context by using delegates on the #app instance.
try using this instead of render_partial
<%= partial 'partial/yourpartialname' %>
where yourpartialname should be in the format of _yourpartialname.html.erb
Hope this helps :)
Related
I have an SVG file that's part of a template located at:
vendor/theme/assets/icons/icon-1.svg
How do I render that inline in my view? render partial: path fails and says it can't find a partial.
In your view insert the following:
<%= render inline: Rails.root.join('vendor/theme/assets/icons/icon-1.svg').read %>
If you're going to be doing this multiple times, you may want to refactor this into a helper.
Also, think about the following:
Are you okay with dumping third party code directly into your view?
Is the vendor SVG file updated automatically without review?
Are you sure the vendor SVG file will never contain malicious code?
I want, from a controller, to render a .js.coffee view that includes another js file from the lib/assets/javascripts directory:
#= require doc_ready
Why a view rendered by a controller instead of a static asset?
Because I want to refer to the file through an absolute url, that doesn't changes. Rails 4.0 only compiles assets with a digest like embed-dc589fbef3832d9c38a4fbbc4b021f59.js and I want to use the same url (and possibly expire the cache file based on time), even if I make changes to the script.
Why an absolute url?
Because I want to use the script externally on another website, and the code I give to the webmaster of that site mustn't change.
Why do I want to include another js from the assets?
To keep the code DRY
To require a simple library that simulates the jquery ready event, used to create widgets on the page that included the script.
Can I achieve that by making a controller action that renders a .js.coffee view, which compiles and includes other needed js files from the library, just like sprocket does when compiling assets?
Use redirection like so:
def show
redirect_to view_context.javascript_path('embed.js.coffee')
end
There is a way to render whole js file:
def show
render text: Rails.application.assets.find_asset('embed.js.coffee').body
end
I managed to find a way to do it, by using this answer.
The controller is left untouched:
class Widgets::EmbedJsController < ActionController::Base
def embedded_script
end
end
In the coffeescript view, I have "required" the other file like this:
`<%= raw Rails.application.assets['doc_ready'].body %>`
Seems to work locally, I'll test in production soon.
This can also be refactored by just serving Rails.application.assets['widgets/embed'].body directly from the controller, which should compile coffeescript but have not tested it.
Another approach is to symlink or copy the digest version of the asset to some constant path (and give that to the 3rd party). This has the advantage that the requests shouldn't hit rails at all (since these should be served directly by the web server.
It is relatively simple to automate this - two libraries that I am aware of that do this are
non stupid assets
asset_symlink (I wrote this one)
Well since I am using a lot of helper methods in my view files and I avoid using html in most of my view files.
Example
myview.html.erb
<%=myhelper #myobject%>
so I end up using,the erb processing tags each time for each file.
<%=%>
I want to register .rb as a template handler or any other extention for that matter.
So my templates look like
myview.html.rb
myhelper #myobject
I am clueless on how to go ahead.
I found it,it seems railscasts already covered that part.
Its show notes,worth checking out.
https://github.com/railscasts/379-template-handlers/blob/master/store-after/config/initializers/ruby_template_handler.rb
Things without ruby are easy to read and render without those erb tags.
Is there any way I can route assets inside of my css to where the rest of the views are pulling them? I mean, inside the CSS can I call url_for or css_for or something like that in order to have the images go through the assets router?
Thank you in advance!
You can use a controller action to render your CSS (with an erb template) and set the content type to text/css.
Take a look at this blog post from Josh Susser on dynamically generated stylesheets. It is from 2006 but the technique described is still applicable.
Hey, I'm new to Rails and Ruby in general. I was wondering if it's possible to use an embedded ruby css file (css.erb), similar to using html.erb files for views.
For example, I'm using
<%= stylesheet_link_tag "main" %>
to link to my main.css file in public/stylesheets, but when I change the file extension from main.css to main.css.erb, it no longer renders the css..
Is this even possible, or is there a better way?
By the time this question was answered there was indeed no way to use .css.erb files in rails properly.
But the new rails 3.1 asset pipeline enables you to use asset helpers inside your css file. The css parsers is not binded a controller/action scope, but the ruby parser is now able to resolve some issues like image path references
.class { background-image: url(<%= asset_path 'image.png' %>) }
or embed an image directly into your css
#logo { background: url(<%= asset_data_uri 'logo.png' %>) }
source: http://guides.rubyonrails.org/asset_pipeline.html
You can also generate a "stylesheets" controller
./script/generate controller stylesheets main admin maintenance
You get something like this:
exists app/controllers/
exists app/helpers/
create app/views/stylesheets
exists test/functional/
exists test/unit/helpers/
create app/controllers/stylesheets_controller.rb
create test/functional/stylesheets_controller_test.rb
create app/helpers/stylesheets_helper.rb
create test/unit/helpers/stylesheets_helper_test.rb
create app/views/stylesheets/main.html.erb
create app/views/stylesheets/admin.html.erb
create app/views/stylesheets/maintenance.html.erb
And you can later use the app/views/stylesheets/ files as dynamically rendered css files.
The same method works for javascript files (javascripts controller)
I dont think so. Whats your intention - to use variables and have them be evaluated at runtime, or "compile" time (meaning like deploy time?). Also, what would be the ERB binding? Would it bind to the controller, like views and helpers are, so that ERB instance would have access to the instance variables set in the controller? I just pose this question as more of a theoretical exercise.
If you want to use variables in your CSS than you can use Haml's SASS. You dont get access to the controller's scope but you do get basic variables and looping. Plus other cool stuff like mixins.