I'm trying to pass some locals into a partial render in rails, however they are not getting passed.
<%=render :partial => "search_results", :locals => {:refinement => "all", :query => params[:search]}%>
The partial is being rendered in a view that has the param[:search] in it, that params[:search] is accessable inside of the partial without it being passed in as a local.
I'm trying to access the locals refinement and query by doing params[:refinement] and params[:query] inside of the partial, however they are not being recognized.
You don't access them via params - you just access the local variable, eg. refinement or query.
Access them as locals[:refinement] or locals[:query] inside your partial. That should work.
Related
I'm adding a new partial view in ruby on rails project and want to pass some additional data to the partial. I have code below for rendering a view . I understand this is the way to pass data (id in my case) to partial view. I'm not sure if this is the best way, as I'm new to rubyonrails. How do i access in my partial view file?
render "index" , :locals => {:id => params[:id]}
You can pass data to your view(s) using options on render, one of which is locals, or by setting instance variables which automatically propagate.
Normally what's done is something like this:
#id_param = params[:id]
Where within your view you can use #id_param wherever and whenever:
<%= #id_param %>
I've chosen #id_param for a name here instead of #id to give it a bit more context as #id on its own might prompt questions of "What ID?"
If you want to do the locals method, then:
render 'index', locals: { id: params[:id] }
Using the Ruby 1.9 hash notation for simplicity here, versus the outdated 1.8 style in your original example. This produces a local variable called id that can be used in that view, like:
<%= id %>
I realize this is similar to some other questions, but I have been through a fair number of those and I think I'm doing what they suggested, but my code is still not working.
So, as the title says, I'm attempting to load a partial from a js.erb file (in response to an AJAX call.) However, it is not working correctly.
full_list.html.haml:
=link_to(test_path(#work), id: "privacy-button", remote: true) do
= render "privacy_button_content", locals: {:show_others => #work.show_others}
_privacy_button_content.html.haml:
-if locals[:show_others] == false
-test_string = "twas false"
-else
-test_string = "twas true"
%p = test_string
works_controller.rb:
def test_function
#work.model_function
respond_with(:layout => false)
end
test_function.js.erb:
$("#privacy-button").html("<%= escape_javascript render(:partial => 'privacy_button_content', locals: {:show_others => #work.show_others}) %>");
So the full_list has privacy_button, which is rendering the partial, and the response to clicking the #privacy-button should be to modify something in the controller, and get the response.js.erb.
This works correctly on page load (so passing the local to the partial does work,) but whenever I run the AJAX call I'm getting
(undefined local variable or method `locals' for #<#<Class:0x00000005006338>:0x000000068481f8>):
Any help would be appreciated.
Update _privacy_button_content.html.haml as below:
-if show_others == false
-test_string = "twas false"
-else
-test_string = "twas true"
%p = test_string
When you pass show_others in locals hash, a local variable would be created for you named show_others. You can access it as show_others in the partial and not locals[:show_others].
Refer to Passing local variables in Rails Guides.
Apply Kirti Thorat's change and then change
= render "privacy_button_content", locals: {:show_others => #work.show_others}
for
= render "privacy_button_content", show_others: #work.show_others
Also remember that views should not have logic, it should be in a helper or in a decorator
BTW: I think %p = test_string should be %p= test_string
So, I've figured it out. It seems that specific error I was getting had to do with the render syntax when working when haml (I got the same issue when I specified render :partial from the view, so it wasn't unique to the js.erb.)
The code in partial.js.erb now looks like:
$("#privacy-button").html("<%= escape_javascript render("privacy_button_content", :locals => {:show_others => #work.show_others}) %>");
As you can see, the main difference is having render "works_group_list" rather than render( partial: => "works_group_list". As I said, I believe this may be related to my views being written in Haml, though it should be noted that the render(partial:...) syntax does work when not attempting to pass local variables from a js.erb.
I was also getting some little issues because I kept referring to something as #my_element in the js when in the html it was #my-element. So if you're encountering this issue, checking your spelling (for the thirtieth time) never hurts.
Edit:
Just a note, as others have pointed out using the locals hash is not mandatory. So the line of code could instead be
$("#privacy-button").html("<%= escape_javascript render("privacy_button_content", :show_others => #work.show_others ) %>");
This will work as long as you update your partial appropriately (referring to var instead of locals[:var]).
In controller, I have #users_shown. In views, I render a partial _attendants.html.haml with #users_shown.
It's okay but there is a button on this page called attend_again, while you click this button, it will render the partial via AJAX with partial _attendants.html.haml.
The question is in the partial _attendants.html.haml, #users_shown is nil. I don't know why.
file _attendants.html.haml like this
- unless #users_shown.blank?
-#users_shown.each do |user|
user.name,user.id
You need to set #users_shown in your controller action that is rendering the ajax _attendants partial. It's a completely separate request, and needs all relevant data set appropriately.
Try add a local to the partial rendering like:
<%= render :partial => "xxxx/_page_attendants", :locals => { :users_shown => #users_shown } %>
I have a partial that contains javascript
#shared/monkey.js
:javascript
//javascript code here
and I want to be able to use partial in that
render :partial => 'shared/monkey', :locals => {:monkey => 'HELLO'}
how do i use the variable monkey inside my partial?
actually, found out a way.
in order to execute ruby code in your :javascript block, you need to do
"#{ruby_code}"
In my application I call the controller foo that sets a variable var to a value and then want to render the the div container with id bar_var. Therefore I have a js.erb file with the code
$('#bar_var').html("<%= escape_javascript(render :partial => ....)
How can I pass the variable parameter var to differ between container bar_1 and bar_2 perhaps? The bar parameter is passed via get parameters and also via ruby class variables.
As far as your question is kind of unclear I will suggest this
$('#bar_<%= params[:var] %>').html("<%= escape_javascript(render :partial => ....)