I'm attempting to create a loop which shows stars as reviews are placed for a product, i have it so that it shows the rating as a number however i wish for it to display an image relating to the rating number,
i've currently got
<%=product.no_of_stars.to_i do image_tag "star-on.png" end %>
however it just displays the rating figure and not the number, no doubt I've missed something simple.
I've researched other questions and they state that should be enough for what i want, but of course its not working as expected.
Thanks, Ben.
The above answer is not quite correct. The problem is that Integer#times returns the integer it was called on, so you will still get 5 as the result. Try
<% product.no_of_starts.to_i.times do %>
<%= image_tag "star-on.png" %>
<% end %>
Try this.
<%=product.no_of_stars.to_i.times do image_tag "star-on.png" end %>
You are missing the times method. This is what allows you to run the number as a loop over and over again (super simplification).
Related
I am trying to build an ecommerce page using rails. In my products page I want to add products with an image, description, color and price. Everything works properly except for the images. I am not able to assign proper image to the desired product. If i use this syntax : <%= image_tag("/assets/6.jpeg", class: "img-fluid") %>, then this particular image is assigned to all other products and it's definitely not logical!
I have already added the images which I need for my project in the app/assets/images folder. I want to have the possibility to dynamically add/modify the photos on my page.
Please help me how to solve this issue. Thanking you guys in advance!
if images file are saved 1.jpeg-?.jpeg you could loop say
<% #product.each_with_index do |product, index| %>
<% i = index + 1 %>
<%= image_tag("assets/#{i}.jpeg"), class: 'image-fluid' %>
<% end %>
I mean for what you're asking this would work but is probably not the best way to go about this.
I'm stuck on a tiny problem regarding chartkick. I have a rail app where you can create different currencies. You can then create a expense with a title, a amount and choose the currency from a list and the user_id. The relations are made and working. I have in my user controller something like this :
#user_spendings = #current_user.spendings.all.order('date DESC').paginate(:page => params[:page], :per_page => 15)
#sums_by_currency = Currency.joins(:spendings).
select(:symb, 'SUM(spendings.amount) AS amount').
where(spendings: { id: #user_spendings.map(&:id) }).
group(:symb)
And in my show view (as I want the expense from each user to be shown there) something like this :
<% #sums_by_currency.each do |currency| %>
<%= '%.02f' % "#{currency.amount}" %> <%= "#{currency.symb}" %>
<% end %>
That shows me the sum for each spending depending on the currency.
I would like to use this total and use chartkick to display the spending, with the date when this spending has been created.
I've tried several things already
First I went with this just to see :
<% #sums_by_currency.each do |currency| %>
<%= bar_chart currency.amount %>
<% end %>
Well I have to charts appearing but nothing shows up. Maybe the loop isn't the solution. Then I thought about the .map but I don't really know how to put that in place to be honnest.
I tried this aswell :
<%= line_chart #current_user.spendings.group(:date).sum(:amount) %>
That shows me the total spendings from all the currencies. I have to find out how to split all the currencies in different charts and show only the total amount from each currency.
If anyone can give me a clue I would appreciate it.
Thanks alot.
Ok guys I got it !
Took me 2 days only...
For the one interested in the answer here is what I did. I actually didn't change anything in the controller and I let the #sums_by_currency like it is.
Instead I went for that :
<%= column_chart #current_user.spendings.all.joins(:currency).group('currencies.symb').group_by_month(:date, format: "%B %Y").sum(:amount) %>
Give me all the spendings from the current_user from where I joined the currency that I grouped by symb. Then I grouped everything by month and I get the sum from the amount.
Yeah, you need to pass a set of data to the chart, not lots of individual pieces of data for individual charts (ie what you've got with the loop). Using map to convert your currency-objects to their amounts makes sense eg
<%= bar_chart #sums_by_currency.map{|c| c.amount } %>
or if you need a name something like:
<%= bar_chart #sums_by_currency.map{|c| {name: c.unit, data: c.amount} } %>
Where unit is whatever currency unit eg AUD
In my app to learn RoR, I want to get the last x (say 5) records in a list.
Currently I get all using
<% #business_partner.received_documents.each do |document| %>
Looking at documentation and SC posts, I tried using this code below, yet get an empty list.
<% #business_partner.received_documents.last(5) do |document| %>
what should I use?
Order received_documents by the creation date and take 5 last:
#business_partner.received_documents.order(:created_at).limit(5)
To get 5 newest ones you'd do:
#business_partner.received_documents.order(created_at: :desc).limit(5)
EDIT
The problem with this
#business_partner.received_documents.last(5) do |document|
is that you actually do not iterate over the collection, thus no output is shown.
Use each:
#business_partner.received_documents.last(5).each do |document|
You Forget to User each In Your Code
<% #business_partner.received_documents.last(5).each do |document| %>
I have been learning rails for a while now, but I still have a lot to learn. I recently found this community and I love it. But now, I am at a loss of what to do.
On the genre/show.html.erb page, I want to display other matching genre.title on this page.
From my understanding I should be able to do this from the show page.
This code of course does not work, and I am sure I am off in the wrong direction, if someone could get me back on path, I would be a happy person.
<% if #genre.title == #genre.title %>
<% #genres.each do |genre| %>
<%= link_to genre.title, movie_genre_path(#movie, genre) %>
<% end %>
This is my route:
movie_genre GET /movies/:movie_id/genres/:id(.:format) genres#show
You can filter your genres in your controller.
def show
movie_genre = Movie.find(params[:movie_id]).genre
#genres = Genre.where(genre: movie_genre)
end
If you use your correct database names in this above code, you will have #genres be what you wanted it to be.
I have this part of code:
<% current_user.meta_accounts.each do |meta_account| %>
<%= content_tag(:li, link_to(meta_account.name, 'javascript:void(0)')) %>
<% end %>
So, I want Rails to show all my MetaAccounts in list, but I get this:
<li>Wallet</li>
<li>Credit card</li>
<li>Debit card</li>
<li>Debts</li>
<li>javascript:void(0)</li> #This is the problem
So, it also shows me MetaAccount, which isn't created yet.
In my MetaAccounts table I have this. I'm using Postgres.
So, it also shows me the last row, where row_number is *. I don't know why, and how to avoid this.
Thanks for any help!
Try:
<% current_user.meta_accounts.select(&:persisted?).each do |meta_account| %>
<%= content_tag(:li, link_to(meta_account.name, 'javascript:void(0)')) %>
<% end %>
The * row you see in PostgreSQL is not an actual record, it's just a quick way to create new records. If you want to be sure, run the following query:
SELECT COUNT(*) FROM MetaAccounts WHERE user_id=1
It will return 4.
I think the problem comes from an unsaved MetaAccount object in current_user.meta_accounts. This could be the case for instance in a form, where you build an empty object bound to the form. Make sure you don't have a call to current_user.meta_accounts.build(...).
If so, you can simply skip in your each loop all MetaAccount objects with a blank name.