In a Rails 3.2 index view I am rendering two partials.
<%= render :partial => 'users/user', :locals => {:users => #happy_users} %>
<%= render :partial => 'users/user', :locals => {:users => #sad_users} %>
and in the partial
<% users.each do |user| %>
Show some fields
<% end %>
<%= will_paginate users %>
The pagination is not working.
If I alter will_paginate to take an instance variable, pagination works (but the wrong collection)
<%= will_paginate #users %>
How can I pass locals to will_paginate when the partial is called?
(I realize that I'll also need to pass :param_name to get this working with two collections. For now I'm just trying to get one instance working.)
The partial is rendered via index.js.erb
$(".ajaxable-users").html('<%= escape_javascript(render("users/user")) %>');
And the controller looks like
def index
#users = User.scoped.paginate(:page => params[:page], :per_page => 5)
#happy_users = User.happy_scope.paginate(:page => params[:page], :per_page => 5)
#sad_users = User.happy_scope.paginate(:page => params[:page], :per_page => 5)
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #users }
format.json { render :json => #users }
format.js
end
end
Thanks for any ideas.
you need to make sure the controller knows which page link of which listing you press. we do this by passing a param to will_paginate page link generator.
you need to make sure your js updates the correct html tag when refreshing the pagination of either listing. we do this by wrapping the pagination in a mood-dependent :) div tag.
since we share the partial we need to make sure mood as well as correct collection is set in controller and passed to partial as local from index views (both html and js).
finally make sure your ajax remote picks up after you redraw pagination (this is a bonus)
so, to set controller instance vars depending on request mood parameter
note that this code also spares you some db calls, since if you just pagintae sad users you do not need to retrieve happy ones or all).
I ommit #users for simplicity, its never used
I suspect happy scope for sad users is only a typo
.
# controller
def index
#mood = params[:mood]
#mood_users = #happy_users = User.happy_scope.paginate(:page => params[:page], :per_page => 5) if #mood.blank? || #mood == 'happy'
#mood_users = #sad_users = User.happy_scope.paginate(:page => params[:page], :per_page => 5) if #mood.blank? || #mood == 'sad'
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #users }
format.json { render :json => #users }
format.js
end
end
make sure we dispatch the right locals to partials:
# index.html.erb
<%= render :partial => 'users/user', :locals => {:users => #happy_users, :mood => 'happy' } %>
<%= render :partial => 'users/user', :locals => {:users => #sad_users, :mood => 'sad' } %>
make partial mood sensitive allowing for distinct div tag id. also put mood in request url.
# users/user partial
<div id='<%= "#{mood || ''}users"%>'>
<% users.each do |user| %>
Show some fields
<% end %>
<%= will_paginate users, :params => { :mood => mood } %>
</div>
this js allows for refreshing different collections in different divs depending on which pagination link was pressed.
# index.js.erb
$("#<%= #mood %>users").html('
<%= escape_javascript(render(partial: "users/user", locals: { users: #mood_users, mood: #mood })) %>
');
For unobtrusive ajax links for pagination you need.
Ruby - Rails 3 - AJAXinate Paginate and sorting
# in a generic js
$(document).ready(function () {
$(".pagination").find("a").livequery(function () {
$(this).attr("data-remote", true);
});
});
Note that the solution should even work if javascript is not enabled and we fall back on html. In this case both sections should be redisplayed allowing for different pages.
MODIFIED CODE TO ALSO HANDLE GRACEFUL JS FALLBACK TO HTML
controller
# controller
def index
#mood = params[:mood]
#happy_page = #mood == 'happy' ? params[:page] : params[:happy_page]
#sad_page = #mood == 'sad' ? params[:page] : params[:sad_page]
#mood_users = #happy_users = User.happy_scope.paginate(:page => #happy_page, :per_page => 5) if !request.xhr? || #mood == 'happy'
#mood_users = #sad_users = User.happy_scope.paginate(:page => #sad_page, :per_page => 5) if !request.xhr? || #mood == 'sad'
#mood_users = #users = User.scoped.paginate(:page => params[:page], :per_page => 5) if #mood.blank?
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #users }
format.json { render :json => #users }
format.js
end
end
forward new view vars to partial local
# index.html.erb
<%= render :partial => 'users/user', :locals => {:users => #happy_users, :mood => 'happy', :happy_page => #happy_page, :sad_page => #sad_page } %>
<%= render :partial => 'users/user', :locals => {:users => #sad_users, :mood => 'sad', :happy_page => #happy_page, :sad_page => #sad_page } %>
we only need to pass this here to not get undefined method in partial.
# index.js.erb (fixed HTML syntax)
$("#<%= #mood %>users").html('
<%= escape_javascript(render(partial: "users/user", locals: { users: #mood_users, mood: #mood, :happy_page => #happy_page, :sad_page => #sad_page })) %>
');
this will then persist happy pages in param if sad page link is clicked, and vica versa.
# users/user partial
<div id='<%= "#{mood || ''}users"%>'>
<% users.each do |user| %>
Show some fields
<% end %>
<%= will_paginate users, :params => { :mood => mood, :happy_page => happy_page, :sad_page => sad_page %>
</div>
First, create in controller two diferent methods for each list for example fill_list1 and fill_list2 there are independent of method for create the main page for example index
Each list method must render a partial without layout for example
render :partial=>'fill_list1', :layout => false
The main page must call partials in view for first time.
when you click in paginate control you must hack click for call ajax next pagination items list
$('list1 a').live('click', function(event){
event.preventDefault();
$.ajax(
{url:URLFORCALLMETHODLIST,
success: function(content) {
DIVLOCATIONLIST.html(content);
},
async:false,
});
});
Try passing proper locals in the index.html.erb:
$(".ajaxable-users").html('
<%= escape_javascript(render("users/user", locals: { users: #users })) %>
');
Related
The controller Actions
def search_leads
#search = Sunspot.search(Lead) do |searcher|
searcher.all do
fulltext params[:email], :fields => :email
fulltext params[:name], :fields => [:first_name, :last_name]
end
searcher.paginate(:page => params[:page], :per_page => 10)
end
#leads = #search.results
respond_to do |format|
if (params[:email].present? || params[:name].present? ) and (current_user.credits > 0)
format.html { redirect_to search_leads_path }
format.js { }
else
format.html { redirect_to new_search_path }
end
end
end
search_leads.js.erb
$(".search_results").html("<%= escape_javascript(render :partial => 'search/search_results') %>");
$('#paginator').html('<%= escape_javascript(paginate(#search.hits, :remote => true).to_s) %>');
HTMl
<div id="paginator">
<%= paginate #search.hits, remote: true %>
</div>
Pagination buttons appear in results, but i am not able to scroll through pages. When clicking on next pages, no call goes to solr.
Everything is ok, the issue is remote: true on paginate, just update like below
Remove remote: true from paginate and it will be on the partial e.g search_results.html.erb
<%= paginate #search.hits %>
and the main file e.g search_leads.html.erb add this script
<script type="text/javascript">
$(document).ready(function() {
$('.pagination > a').attr('data-remote', 'true');
});
</script>
the .pagination > a is selector if this not working then just find the selector from browser console then use this.
I think this line does not require, remove this
$('#paginator').html('<%= escape_javascript(paginate(#search.hits, :remote => true).to_s) %>');
and on the search_leads.js.erb this script also OK
$(".search_results").html("<%= escape_javascript(render('search/search_results')) %>");
In my app there is a list of items which you can upvote. I want to make these votes with AJAX calls.
This is the view:
<ul class="list-groups">
<% #questions.each do |question| %>
<li class="list-group-item">
<%= link_to question.description, question_path(question) %>
<%= form_for(question, :url => url_for(:controller => 'vote', :action => 'vote'), method: :post, html: { class: 'form-inline' }) do |f| %>
<%= f.submit 'Up vote', class: "btn btn-default" %>
<%= f.hidden_field :id, :value => question.id %>
<% end %>
</li>
<% end %>
</ul>
And this the method that does it:
class VoteController < ApplicationController
respond_to :json
def vote
question_id = params[:question][:id]
user_id = current_user.id
vote = Vote.where(["question_id = :q", { q: question_id }]).where(["user_id = :u", { u: user_id }])
respond_to do |format|
if vote.nil?
#vote = Vote.new
#vote.question_id = question_id
#vote.user_id = user_id
#vote.save
format.html { render '/home/index' }
format.json { render :json => { :status => 'ok' } }
else
format.html { render '/home/index' }
format.json { render :json => { :status => 'failed', :msg => 'You already voted' } }
end
end
end
end
If I don't include this format.html { render '/home/index' } I am getting this error:
ActionController::UnknownFormat in VoteController#vote
But I don't want to render the page again, I am just loading the pieces of html that will change after the action with jQuery and ajax.
How can I respond only with the json?
Use respond_with instead of respond_to in your controller action.
respond_with do |format|
respond_to at the top of your controller is designed to work with respond_with in your controller action, whereas respond_to in your controller action ignores the respond_to that you've defined at the top of your controller.
Also make sure you are making a remote call, instead of a normall one if you want your request to go through AJAX.
<%= form_for(question, :url => url_for(:controller => 'vote', :action => 'vote'), method: :post, remote: true, html: { class: 'form-inline' }) do |f| %>
Note the remote: true part that is added as an argument to the form_for helper.
You need to include remote: true in form_for in order to make the call requests AJAX instead of HTML.
<%= form_for(question, :url => url_for(:controller => 'vote', :action => 'vote'), remote: true, method: :post, html: { class: 'form-inline' }) do |f| %>
Check out the Working with JavaScript in Rails documentation for more information.
def selected
#enquiries = Enquiry.all
#enquiry_details = EnquiryDetail.all
#comments = Comment.all
#enquiries.where("created_at >= ? AND created_at <= ?", Time.zone.now.beginning_of_day, Time.zone.now.end_of_day)
respond_to do |format|
format.html # index.html.erb
format.json { render json: #enquiries and #enquiry_details and #comments }
end
end
How to call this method in my view.
<%= link_to '<button type="button">SELECT</button>'.html_safe, method: :selected %>
Create a route for the action selected and then do this;
<%= button_to "SELECT", { :controller => "CONTROLLER", :action => "selected"} %>
I have a form:
<% form_tag({:controller => "/faq", :action => 'search_ajax'}, :update => "help_results", remote: true) do %>
that is going to the search_ajax action which is supposed to update the help_results div. That action is supposed to render a partial at the end, but I for sure am having syntax issues:
def search_ajax
#categories = HelpCategory.find(:all)
if params[:query].not_blank? && params[:query] != "Search for help about..."
#query = params[:query]
#terms = params[:query].split.map {|t| "%#{t.downcase}%" }
options = {
:allow_partial_match => true,
:order => 'fulltext_match_score DESC',
}
#results = SearchableText.search_model(HelpItem, #query, options).uniq
#results = {"Search Results" => #results} if !#results.blank?
#complicated_query = HelpItem.is_complicated_query?(#query)
#search_included = true
else
#results = HelpItem.all.group_by {|item| item.category.name rescue "Misc"}
#search_included = false
end
render :partial => "results"
respond_to do |format|
format.js do
render :partial => 'results'
end
format.html do
render :partial => 'results'
end
end
end
Some of the respond_to area is commented out. I am getting the error message:
ActionController::DoubleRenderError in FaqController#search_ajax
I know that if I add the remote => true helper into my form that the controller action needs to respond to js. I'm pretty sure this is a syntax error. The respond_to also comes at the end of my controller action.
Remove the
render :partial => "results"
Above the respond_to block
I am learning Haml.
My view files are like:
show.html.haml:
.content
= render 'meeting_info', :locals => { :info => #info }
and _meeting_info.html.haml:
.detail
%table
%caption
Meeting Informations of
= info["meeting_name"]
...
When I tried running this I got an undefined local variable or method 'info' error.
Try this
Without :locals and :partial
.content
= render 'meeting_info', :info => #info
No need to specify locals.
With :locals and :partial
You should specify locals in following case i.e specifying :partial for render
.content
= render :partial => 'meeting_info', :locals => { :info => #info }
You would use the :locals option if you're calling render from a controller. When calling render from a view, you would simply do this:
= render 'meeting_info', :info => #info