I am using bb-code in a Rails application for postings and comments. At the moment, I have the following to put a post's content in a view:
<%= #post.content.bbcode_to_html.html_safe.gsub('<a', '<a rel="nofollow"') %>
What is the best way to convert the bb-code to html and add "nofollow" to all links?
Thanks!
The bb-ruby gem you are using allows for using custom BBCode translations passed as parameters to the bbcode_to_html method. However, if you really want ALL links to contain the rel="nofollow", I think your best bet is going to be monkey patching them gem itself. Based on the BBRuby source, you want to do this:
module BBRuby
##tags = ##tags.merge({
'Link' => [
/\[url=(.*?)\](.*?)\[\/url\]/mi,
'\2',
'Hyperlink to somewhere else',
'Maybe try looking on [url=http://google.com]Google[/url]?',
:link],
'Link (Implied)' => [
/\[url\](.*?)\[\/url\]/mi,
'\1',
'Hyperlink (implied)',
"Maybe try looking on [url]http://google.com[/url]",
:link],
'Link (Automatic)' => [
/(\A|\s)((https?:\/\/|www\.)[^\s<]+)/,
' \2',
'Hyperlink (automatic)',
'Maybe try looking on http://www.google.com',
:link]
})
end
This will rewrite the BBRuby translator to always include a nofollow attribute. I would put this in config/initializers with a descriptive filename such as bbruby_nofollow_monkeypatch.rb
As for the html_safe, I would leave that as is. As I understand it that is a preferred way of doing it and in my opinion it keeps your intent clear. The above monkey patch makes the line in your view more readable:
<%= #post.content.bbcode_to_html.html_safe %>
Related
I have some translations that I use in my views. These translations sometimes return very basic HTML markup in them -
t("some.translation")
#=> "This is a translation with some markup<br />"
(Side note: I'm using the fantastic it gem to easily embed markup, and specifically links, in my translations)
What if I wanted to strip the HTML tags in certain cases, like when I'm working with the translation string in my RSpec tests. Is there an HTML strp functionality that will compile and remove that markup?
t("some.translation").some_html_strip_method
#=> "This is a translation with some markup"
Thanks!
You may want to try strip_tags from ActionView::Helpers::SanitizeHelper
strip_tags("Strip <i>these</i> tags!")
# => Strip these tags!
strip_tags("<b>Bold</b> no more! <a href='more.html'>See more here</a>...")
# => Bold no more! See more here...
strip_tags("<div id='top-bar'>Welcome to my website!</div>")
# => Welcome to my website!
Depending on where you use it.
strip_tags method not functioning in controllers, models, or libs
It comes up with an error about white_list_sanitizer undefined in the class you’re using it in.
To get around this, use:
ActionController::Base.helpers.strip_tags('string')
To shorten this, add something like this in an initializer:
class String
def strip_tags
ActionController::Base.helpers.strip_tags(self)
end
end
Then call it with:
'string'.strip_tags
But if you only need to use it in VIEW, simply:
<%= strip_tags(t("some.translation")) %>
I want to make a view for my website coded in RoR wherein all the available path are listed as links. Is there any way to access the views for various models from the program?
For example, something like:
<%model.views.each do |v| %>
<%= link_to v %>
<% end %>
You could use the sitemap_generator or dynamic_sitemaps gem to generate Sitemaps for your application.
You can use named routes, which allows you to create a link to a different part of your rails app, based on names you set in routes.rb. You can also include route parameters, too, which makes it easy to link to models.
In your routes.rb
get 'test_route/:id' => 'example#controller', as :test
In controllers/views:
link_to #example.name, test_path(id: #example.id)
Further reading on named routes
Im not sure why you want this :), but this will give you the routes
Rails.application.routes.routes
if you want to get all the paths as an array
Rails.application.routes.routes.collect {|r| r.path.spec.to_s }
I'm using the Rails gem active_link_to for determining the active URL for menus. It works great on straight forward links such as '/controller/action' but how can I do it similarly for particular param?
Ie /controller/action?user=all
Or is there a better gem that can provide this?
https://github.com/twg/active_link_to
You could use the Regex functionality of the gem, depending on how your code is organized.
<%= active_link_to("Link Text", some_place_path, :active => /#{Regexp.escape(#param_value)}/, class: "blogYear") %>
You can execute code within a Regex with the above method if you are going to output the param or param value dynamically.
I have created an application that allows for users to input lots of different data (posts, comments, etc.). The simple_format is good for me for now I just want to protect against crazy stuff. I haven't used sanitize before and after reading some guides I am still a little confused on how to implement. Hoping I can get some direction here.
Let's say I am collecting #post.body. How do I remove any <div> tags or <script> tags that might be entered by the user? I am assuming that in the view it would look something like this:
<%= sanatize(simple_format #post.body) %>
...but where do I define what tags aren't allowed? In the Post model or in a sanitize_helper? What is the correct syntax here?
Here's the documentation link for the sanitize method in Rails 2.3.8. With that in mind you'll be able to define allowed tags in this way:
<%= sanitize(simple_format(#post.body), :tags => %w(p span strong)) %>
Note that you can define them also inside the Rails Initializer:
Rails::Initializer.run do |config|
config.action_view.sanitized_allowed_tags = 'table', 'tr', 'td'
end
I hope you find this helpful!
Let's say I have this:
<%= link_to "My Big Link", page_path(:id => 4) %>
And in my page.rb I want to show urls by their permalink so I use the standard:
def to_param
"#{id}-#{title.parameterize}"
end
Now when I click "My Big Link" it takes me to the correct page, but the url in the address bar does not display the desired permalink. Instead it just shows the standard:
wwww.mysite.com/pages/4
Is this because I hard-coded an id into the page_path? It also does not work if I use straight html like..
My Big Link
I would appreciate it if anyone could verify this same behavior and let me know if this intended or not. I need the ability to hard code :id's to specify exact pages...
Just use page_path(page). I guess the path helpers don't access the database themself (which is good), but if they are being supplied with an object and that object has a to_param method this method is being used to generate an identifier.
<%= link_to "My Big Link", page_path(page) %>
It's because you are specifying the id:
page_path(:id => 4)
You could specify the path you want in this method:
page_path(:id => "#{id}-#{title.parameterize}")
Where have you defined the to_param method? In the model?
UPDATE TO MY QUESTION ---------------------->
Thanks all for the answers. This was kind of a one off situation. My solution was to simply go with html:
My Big Link
Which produced the desired:
wwww.mysite.com/pages/4-great-title-here
I didn't want to loop through page objects and waste a call to the database for this one link. Much appreciated for all the answers though!