What I am trying to do is show the 2 letter abbreviation code of the countries, i.e 'US'.
After the country is selected I need to show its state or province.
but I am having a problem.
My code looks like
<%= f.select :country_code, region_options_for_select(only_us_and_france) %>
and define this in helper:
def only_us_and_france
Carmen::Country.all.select{|c| %w{US FR}.include?(c.code)}
end
I am using Rails 4.1.0.
I have solved this by :
Step1: Generated migration
rails g migration addStateCodeFieldToAccounts state_code:string
Step2: Define a method inside controller
def subregion_options
render partial: 'subregion_select'
end
Step3: Declare in routes
resources :accounts do
collection do
get 'subregion_options'
end
end
Step4: In view
<div class="input-control select state_input" data-role="input-control">
<%= f.select :country, region_options_for_select(only_us_and_france) %>
</div>
<div class="input-control select state_input" data-role="input-control">
<%= render partial: 'subregion_select', locals: {parent_region: f.object.country} %>
</div>
Step5: Make partial subregion_select
<div id="account_state_code_wrapper">
<% parent_region ||= params[:parent_region] %>
<% country = Carmen::Country.coded(parent_region) %>
<% if country.nil? %>
<em>Please select a country above</em>
<% elsif country.subregions? %>
<%= subregion_select(:order, :state_code, parent_region) %>
<% else %>
<%= text_field(:order, :state_code) %>
<% end %>
</div>
Step6: In my js file written this
$('select#account_detail_country').change(function(){
selectWrapper = $('#account_state_code_wrapper')
countryCode = $(this).val()
url = "/account_details/subregion_options?parent_region="+countryCode
console.log(url)
selectWrapper.load(url)
});
yeah and it works :) Hope this will help you.
Related
I'm trying to make a basic search function for a simple product inventory app on Sinatra, but don't know how to make the controller and view to properly output all the products which have similar names to a results page.
SearchPage.erb:
<form action="/search", method="post">
<input type="text" name="product[name]">
Controller:
post '/search' do
#Products = Product.find_by(name: params[:product][:name])
#Products = Product.all(:name.like => "%#{params[:name]}%") #found this on another question
erb :"result"
end
Result.erb
<% #Products.each do |product| %>
<%=product.name %>
<%=product.details %>
EDIT: I was able to make search work based on the suggestion with the following code. Thanks!:
Search.erb View
<form action="/search", method="get">
<input type="text" name="search">
Controller
get '/search' do
#products = Product.all
if params[:search]
#products = Product.search(params[:search])
else
#products = Product.all
end
erb :'results'
end
Model
class Product < ActiveRecord::Base
def self.search(search)
where("name like ?", "%#{search}%")
end
Results.erb View
<% if #products.present? %>
<table>
<td>Product Name</td><td>Company</td>
<% #products.each do |product| %>
<tr><td><%=h product.name %> </td>
<td><%=h product.company.name %></td>
<% end %>
<% else %>
<p>There are no Products containing the term(s) <%= params[:search] %>.</p>
<% end %>
</table>
I notice off the bat you're using a POST method. There is an easier way to do create search functionality for your products. Try this:
Posts Controller:
#products = Product.all
if params[:search]
#products = Product.search(params[:search]).order("created_at DESC")
else
#products = Product.all.order('created_at DESC')
end
end
Posts Model (note: If you are using SQLite keep it as LIKE. If you are using Postgres, change LIKE to ILIKE)
def self.search(search)
where('name like :pat or content like :pat', :pat => "%#{search}%")
end
Search Form (Put into your Result.erb and edit as needed but keep as get method. I personally like using form helpers but you can create a normal form if you'd like)
<%= form_tag(products_path, :method => "get", id: "search-form") do %>
<%= text_field_tag :search, params[:search], placeholder: "Search Posts" %>
<%= submit_tag "Search" %>
<% end %>
Render Results
<% if #products.present? %>
<%= render #products %>
<% else %>
<p>There are no posts containing the term(s) <%= params[:search] %>.</p>
<% end %>
Let me know if this works for you. If not, i'll try help some more.
Ive had a problem for a couple of days. I've tried every solotion thad i found on stackoverflow, but nothing worked...
Rails gives me an error when i try to add a new 'journey' (just a simple datapase entry): undefined method `journeys_index_path' for #<#:0x3d0b888>
Problem resolved!
The issue was the model name. It was Journeys but it should be journey ! The only thing I had to do is rename the modelfile in app/models. (i had to change the filename and the contents, pretty simple!
Oh and the model name is not the same as the database name.
Please check http://rubyonrailsthrissur.wordpress.com/2012/07/18/naming-conventions-while-creating-tables-in-rails/ for more naming rules
Routes.rb:
Fabulam::Application.routes.draw do
root "home#home"
resources :journeys
match 'auth/:provider/callback', to: 'sessions#create', via: 'get'
match 'auth/failure', to: redirect('/'), via: 'get'
match 'signout', to: 'sessions#destroy', via: 'get', as: 'signout'
end
journeys_controller (relevant part)
def index
#current_user ||= User.find(session[:user_id]) if session[:user_id]
#journey = Journeys.where(uid: current_user.uid)
end
def show
#journey = Journeys.find(params[:id])
end
def new
#journey = Journeys.new
end
new.html.erb (location = journeys/new.html.erb)
<!DOCTYPE html>
<html>
<body>
<div>
<h1> Maak hieronder een nieuwe reis aan! </h1>
<% form_for(#journey) do |f| %>
<p>
<%= f.label :name %><br/<
<%= f.text_field :name %>
</P>
<p>
<%f.submit "Dubmittt" %>
</p>
<% end %>
</div>
</body>
</html>
index.html.erb (location journeys/index.html.erb, this one is working fine)
<!DOCTYPE html>
<html>
<body>
<div id="user_nav">
<% if current_user %>
Signed in as <strong><%= current_user.name %></strong>!
<%= link_to "Sign out", signout_path, id: "sign_out" %>
<% else %>
<%= link_to "Sign in with Facebook", "/auth/facebook", id: "sign_in" %>
<% end %>
</div>
<div id="travels">
Hieronder al je reizen!
<% #journey.each do |journey| %>
<h2><%= link_to journey.name, journey %></h2>
<% end %>
</div>
<p><%= link_to "Add a new journey" , new_journey_path %> </P>
</body>
</html>
Rake routes
Prefix Verb URI Pattern Controller#Action
root GET / home#home
journeys GET /journeys(.:format) journeys#index
POST /journeys(.:format) journeys#create
new_journey GET /journeys/new(.:format) journeys#new
edit_journey GET /journeys/:id/edit(.:format) journeys#edit
journey GET /journeys/:id(.:format) journeys#show
PATCH /journeys/:id(.:format) journeys#update
PUT /journeys/:id(.:format) journeys#update
DELETE /journeys/:id(.:format) journeys#destroy
GET /auth/:provider/callback(.:format) sessions#create
auth_failure GET /auth/failure(.:format) redirect(301, /)
signout GET /signout(.:format) sessions#destroy
Am I missing something?
Thanks in advance!
I want to do this:
<div class="menu">
<%- render_menu do |title,path,children| %>
<%= link_to title, path %>
<div class="submenu">
<%= render_menu(children) do |title,path,children| %>
<%= link_to title, path %>
<%= children %>
<%- end %>
</div>
<% end %>
</div>
The method render_menu would look something like this:
def render_menu(children=nil)
children = Paths.roots if children.nil?
children.collect do |child|
[ child.title, child.path, child.children ]
end
end
I'm not sure what the render_menu needs to return to get the three params..
The render_menu will grab the default menu items if no argument is given..
You have to use yield and replace each for collect inside render_menu:
def render_menu(children=nil)
children = Paths.roots if children.nil?
children.each do |child|
yield([child.title, child.path, child.children])
end
end
You should also modify your template to not display the value returned by render_menu:
<div class="submenu">
<% render_menu(children) do |title,path,children| %>
<%= link_to title, path %>
<%= children %>
<% end %>
</div>
I want to bring this code from my view html into a popup when a link is clicked
Is that possible in Ruby on Rails? I already have the pop up working but I'm wondering about the code to show just the comments:
<div class = "comments"><% if post.comments.exists? %>
<% post.comments.each do |comment| %>
<%= image_tag("http://www.gravatar.com/someavatarlink %) <!-- Retrieves Gravatar -->
<%= link_to comment.user.name, comment.user %>
<span class="timestamp"><%= time_ago_in_words(comment.created_at) %> ago</span>
<span class="content2"><%= comment.comment_content %></span>
<% end %>
<% end %></div>
Added Ajax call to _comment_form.html.erb
<%= link_to "Link", comment, :remote => true %>
Comments
<% end %></div></div>
<div id ="modal" class = "comments"><% if post.comments.exists? %>
<% post.comments.each do |comment| %>
<%= link_to comment.user.name, comment.user %>
<span class="timestamp"><%= time_ago_in_words(comment.created_at) %> ago</span>
<span class="content2"><%= comment.comment_content %></span>
<% end %>
<% end %></div>
Added def show into comments controller
class CommentsController < ApplicationController
def new
#post = post.new(params[:post])
end
def show
#comment = Comment.find(params[:id])
respond_to do |format|
format.js
end
def create
#post = post.find(params[:micropost_id])
#comment = Comment.new(params[:comment])
#comment.post = #post
#comment.user = current_user
if #comment.save
redirect_to(:back)
else
render 'shared/_comment_form'
end
end
end
Created show.erb.js and put it into 'comments' and 'shared' folders
$("#popup").html('<%= escape_javascript(render "comments") %>');
Then finally wrote my partial which is in comments/_comment.html.erb
<% if post.comments.exists? %>
<% post.comments.each do |comment| %>
<%= link_to comment.user.name, comment.user %>
<span class="timestamp"><%= time_ago_in_words(comment.created_at) %> ago</span>
<span class="content2"><%= comment.comment_content %></span>
<% end %>
<% end %>
1. Ajax call
To retrieve the data you use an Ajax call.
<%= link_to "Link", comment, :remote => true %>
Rails will evaluate these requests and will look for a .js view first (it will use .html if it does not exist).
Make also sure that the controller accepts requests to .js like
def show
#comment = Comment.find(params[:id])
respond_to do |format|
format.js
end
end
2. write js view
Add a show.erb.js view to your Comments . This is a JavaScript file with ERB evaluation.
In this template use your js popup code and tell it to fill a div with your html code like so:
$("#popup").html('<%= escape_javascript(render #comment) %>');
This will render the comment. The only thing we need then is a partial to render the html of the comment.
3. write partial for html
Write a partial for the view part you want to have in the popup. This can then be used in a normal html view or the js view. To make it work with the code above call it _comment.html.erb
To know more about partials you can check the guides here:
http://guides.rubyonrails.org/layouts_and_rendering.html#using-partials
Here is the users show view where they are supposed to show up. ..
<section>
<div id= "purchases">
<%= render 'shared/micropost_form_purchase' %>
</div>
<div id="sales">
<%= render 'shared/micropost_form_sale' %>
</div>
</section>
<%= #sales %> <%# This is just to see if it outputs anything. It doesn't :( %>
<div id="purchases list">
<ol class="microposts">
<%= render #purchases unless #purchases.nil? %>
</ol>
</div>
<div id="sales list">
<ol class="microposts">
<%= render #sales unless #sales.nil? %>
</ol>
</div>
so the forms (partials) are loading fine, but then when I make a post, in either one, neither the purchases list nor the sales list shows up. I checked the database and they are being created along with an entry in the column indicating kind (either sale or purchase).
Here are the forms:
<%= form_for (#micropost) do |f| %>
<div class="field no-indent">
<%= f.text_area :content, placeholder: "What's something else you want to buy?" %>
<%= hidden_field_tag 'micropost[kind]', "purchase" %>
</div>
<%= f.submit "Post", class: "btn btn-large btn-primary" %>
<% end %>
and
<%= form_for (#micropost) do |f| %>
<div class="field no-indent">
<%= f.text_area :content, placeholder: "What's something else you want to buy?" %>
<%= hidden_field_tag 'micropost[kind]', "sale" %>
</div>
<%= f.submit "Post", class: "btn btn-large btn-primary" %>
<% end %>
also, here is the show part of the users_controller.rb
def show
#user = User.find(params[:id])
#micropost=Micropost.new
#microposts = #user.microposts.paginate(page: params[:page])
end
and here is the show part of the microposts_controller.rb
def show
#micropost = Micropost.find(params[:id])
#microposts = Micropost.where(:user_id => #user.id)
#purchases= #microposts.collect{ |m| m if m.kind == "purchase"}.compact
#sales = #microposts.collect{ |m| m if m.kind == "sale"}.compact
end
additionally, with the help of this post (http://stackoverflow.com/questions/12505845/ruby-error-wrong-number-of-arguments-0-for-1#12505865) the variables #microposts, #purchases, and #sales are all outputting correctly in the console.
can anyone help me out?
edit: using scopes as suggested by the answer given works in the console (it outputs everything correctly, but they still don't show up in the view. Does this mean it is something wrong with my syntax for the users show page?
edit 2:
Here is the view/microposts/_micropost.html.erb code
<li>
<span class="content"><%= micropost.content %></span>
<span class="timestamp">
Posted <%= time_ago_in_words(micropost.created_at) %> ago.
</span>
<% if current_user?(micropost.user) %>
<%= link_to "delete", micropost, method: :delete,
confirm: "You sure?",
title: micropost.content %>
<% end %>
</li>
I'm making some assumptions without seeing more of your code, but it looks like you could
write what you've shown a little differently. I'm assuming your databases are migrating
and have the required columns, e.g., Micropost#kind, Micropost#user_id, etc.
You can use scopes to refine a collection of microposts more expressively. It might be helpful to read
up about ActiveRecord scopes: http://guides.rubyonrails.org/active_record_querying.html#scopes.
class Micropost < ActiveRecord::Base
belongs_to :user
scope :purchases, where(:kind => "purchase")
scope :sales, where(:kind => "sale")
# your code
end
I'm also assuming your user has many microposts:
class User < ActiveRecord::Base
has_many :microposts
# your code
end
For your forms, I'd suggest attaching your hidden field to the form object (f.hidden_field) so
you don't have to specify the name as 'micropost[kind]'.
<%= form_for(#micropost) do |f| %>
<div class="field no-indent">
<%= f.text_area :content, placeholder: "What's something else you want to buy?" %>
<%= f.hidden_field :kind, :value => "sale" %>
</div>
<%= f.submit "Post", class: "btn btn-large btn-primary" %>
<% end %>
In MicropostsController#show, you can use your new scopes:
def show
#micropost = Micropost.find(params[:id])
#microposts = #user.microposts
#purchases = #microposts.purchases
#sales = #microposts.sales
end
You should also confirm that your MicropostsController#create action is actually adding
the microposts to the user sending the form (I'm assuming a current user method).
def create
#micropost = current_user.microposts.create(params[:micropost])
# yada
end
You can also confirm expected results on rails console after creating purchases or sales micropost with:
Micropost.purchases
Micropost.sales
Again, I could be missing something without seeing more of the code base.
Check Micropost.count, #purchases.count, #sales.count (by printing them in the controller, or some part of the view) to see if the records actually exist.
Also, if you want to render collections likes #sales and #purchases, you need to make sure that the model partial exists (_micropost.html.erb in your case). That is probably where you need to look for the view errors. For all you know, that file could be empty, thus no errors will show up at all.
The problem might also lie in your microposts#create (or whichever action that you are saving the micropost in), the micropost should be associated with the current_user:
#micropost = current_user.microposts.build(params[:micropost])
Taking this and your previous question into account, I suggest you go through the original code for the RoR tutorial again (and verify that all tests are passing) before taking it apart. You can always add new tests to it for your experiments and they will help in figuring out where you went wrong.