for my CMs i want to be able to easily add new themes, my idea was to simply add a mime type for the new theme (so application.theme1.erb would work).
but for 99% of the themes im not going to want to change the views, well not all of them.
is there someway to have rails fall back on html if the themed view isnt present?
I'm pretty new to Rails, so this might not be a perfect answer:
you might want to try using querystring parameters as part of the route like described here:
http://guides.rubyonrails.org/routing.html#querystring-parameters
so eventually something like this would work
map.connect ':theme/:controller/:action/:id'
As I understand it, the theme would be available as params[:theme] in the controller. If no theme is specified you probably have to add another route like
map.connect '/:controller/:action/:id'
to handle that case.
In the i18n guide something similar is described for locales: http://guides.rubyonrails.org/i18n.html#setting-the-locale-from-the-url-params
Hope that helps.
It depends on how much of the layout you want to change with the themes.
If you build your HTML right, most of the things can be done through css. (changing fonts, colours, where the stuff show up)
Then it is quite easy to add just a theme parameter to style it.
If you don't want to do that, you can always create a separate layout for it, and assign that depending on the parameters passed in (or even set it as a session variable so you won't have it in the url).
Basically, for the default theme, you stick to the layouts/application.erb, then you have say layouts/theme1.erb which you then assign with a method
class ApplicationController
layout :decide_layout
def decide_layout
#session[:layout] || 'application'
end
end
Customizing the views would be possible just by doing something like this in your actions:
def my_action
render "my_action_#{#session[:layout]}" if #session[:layout]
end
if #session[:layout] is not set, it will render the default, otherwise it will render your themed view.
Of course, if you set the layout depending on user input, make sure to sanitize and check the layout parameter before.
I've just had this same problem with mobile_fu, which sets the format to :mobile for mobile requests.
It turns out that if an :action.:format.erb template isn't available, Rails will serve :action.rhtml as a replacement in any format.
I can't say whether this will work for layouts, but it certainly works for actions
Related
My default templating engine is haml, but I would to sometimes change it to erb if i specify a specific parameter?
For example, I am pasting in some html code and would just like to test the code without HAML complaining about its format.
Any idea how to do this?
do something like:
if params[:render_erb]
render 'file.html.erb'
else
render 'file.html.haml'
end
and call the action with ?render_erb=true
or
render "file.html.#{params[:render]}" ir params[:render]
and call it ?render=haml or ?render=erb (or nothing and it will use the default
at the end of the controller's action that you are using
Am I wrong that you simply need to save file as your_file.html.erb instead of your_file.html.haml?
You can use different templates in the same application, and you can use different template engines for views, partials, and layouts, but as far as I know you can't duck in and out of multiple template engines within the same template file.
If you just want to drop some code in using a different template language, then I'd put it in a separate partial. That certainly seems easiest in this particular case.
I've created a theme and applied it to my ASP.NET MVC site. However, the elements on the page aren't picking up the styles automatically. If I do the following for a specific element they get applied appropriately:
$("input[type=button]").button();
$("input[type=submit]").button();
Am I right in thinking I need to do this for all the different elements? Perhaps incorrectly, I assumed this would be done automatically by referencing the css and custom js files?
Thanks
you can write :submit instead of input[type=submit], but I know that's no the answer of your question.
The jQuery UI library only provides code to style your website, but it doesn't do it automatically. So what you need to do is something like this:
$(":submit, :button, :reset").button();
But sometimes you want to use icons or something like this, then you can use
$("#specificButton").button("option", "...", "...");
I hope it helps!
I need an after filter that will perform a query depending on what layout is chosen by the user for the current page.
Is there a way to see what layout is being used before the page is rendered?
Thanks.
The after_filter is executed after the page is rendered. In the after_filter you can know which layout has been used, but it's too late if you need to run a query and include the output in the layout.
You should probably follow an other way. If your query is tied to a specific layout, then create an helper containing the query and call the helper in your template.
Otherwise, provide more context about your need and we can suggest a different approach.
The ActiveScaffold list view has a search form that is loaded via ajax when a user click the search link. I'd prefer to have the form show by default when a user opens a list page.
I've figured out a way to trigger the ajax call when the page loads, but I'm wondering if there's a way to get ActiveScaffold to render the form automatically. Is there a template or a method I can override? I've had a look through the code but there's nothing obvious, at least to me.
Update:
srboisvert's answer inspired me to have a better look.
The trick is to use Template overrides to refactor the following: list.rhtml, _list_header.rhtml, _search.rhtml so that the search form partial renders inline.
There is a way to get it rendered automatically:
active_scaffold :model do |config|
config.list.always_show_search = true
end
I don't currently have an active scaffold project handy but here is how I would figure it out.
I'd use firefox with firebug installed and take a look at what is called when the link is clicked. Then I would go look at that javascript and what it is generating. Then I would search the source for any part of the code or combination that would be fairly unique to the search box ajax. After that it should be easy to cut and past it in without the ajaxyness.
The option
config.list.always_show_search = true
works fine, but only on concrete controller. It throws an exception when used in AS set_default block. Somebody know better solution then to include it in every controller (apart from overriding the template which is handy but complicates version updates)
I am using ActiveScaffold in a Ruby on Rails app, and have replaced the default "actions" text in the table (ie. "edit", "delete", "show") with icons using CSS. I have also added a couple of custom actions with action_link.add ("move" and "copy").
For clarity, I would like to have the icons displayed in a different order than they are. Specifically, I would like "edit" to be the first icon displayed.
I seem to be able to change the order of the action_links by the changing the order of definition in the controller. I have also been able to change the order of the default actions by first config.actions.excluding everything, and then adding them with config.actions.add in a specific order.
However, my custom actions always seem to appear before the default actions in the list.
Ideally I would like them to display "edit" "copy" "move" "delete" (ie - built-in, custom, custom, built-in). Can anyone suggest how I might do this?
One idea I had was to re-define "edit" as a custom action (with the default functionality), but I don't know how to go about this either.
Caveat: I don't know ActiveScaffold. This answer is based on me reading its source code.
It looks like the action_links variable is a custom data structure, called ActionLinks. It's defined in ActiveScaffold::DataStructures.
Internally, it has a #set variable, which is not a Set at all, but an Array. ActionLinks has an add, delete, and each methods that serve as gatekeepers of this #set variable.
When displaying the links, ActiveScaffold does this (in _list_actions.rhtml):
<% active_scaffold_config.action_links.each :record do |link| -%>
# Displays the link (code removed for brevity)
<% end -%>
So, short of extending ActiveScaffold::DataStructures::ActionLinks to add a method to sort the values in #set differently, there doesn't seem to be a way to do it, at least not generally.
If I were you, I'd add something called order_by!, where you pass it an array of symbols, with the proper order, and it resorts #set. That way, you can call it after you're done adding your custom actions.