in view code:
<% for item in #cart.line_items %>
<%= item.quantity*item.product.price %>
<% end %>
I want to get the total price after calculation and show in a label.
#cart.line_items.sum { |item| item.quantity * item.product.price }
Related
I'd like to create a todo list looking for any cell that matches today's date on either agreement, start or due date.
<% #project.where("project_date_agreement + project_date_start + project_date_due > ?", Date.today).each do |tasks_today| %>
<ul>
<li>Item Due Today</li>
</ul>
<% end %>
Any help getting me in right direction would be appreciated.
You want to use OR conditions in your where clause. Properly speaking this would be in your controller.
#projects = Project.where('date_agreement = ? OR date_start = ? or date_due = ?', Date.today, Date.today, Date.today)
In your Project Model you might want to create a field that say's what's due...
def due_because
due_array = []
due_array << 'Agreement date' if date_agreemnt == Date.today
due_array << 'Start date' if date_start == Date.today
due_array << 'Due date' if date_due == Date.today'
due_array.join(', ')
end
Then in your view you would iterate over the #projects
<ul>
<li>Items Due Today</li>
<% #projects.each do |project| %>
<li><%=project.name%> <%=project.due_because%></li>
<% end %>
</ul>
if you asking one row and different column, how about if you combine with table
<% #tasks = #projects.where("date_agreement = ? AND date_start = ? AND date_due = ?",Date.today ,Date.today, Date.today) %>
<table>
<tr>
<ul>
<% #tasks.each do |task| %>
<td>
<li><%= task.check_box :item_due %></li>
</td>
<% end %>
</ul>
</tr>
</table>
I got four different models.
Here's an example,
#single = Single.all
#coe = Coe.all
#blend = Blend.all
#production = #single+#coe+#blend
then how to check which model #production is?
I tried
<% #production.each do |p| %>
<%=p.class.name%>
<% end %>
but it returns "Array"
It seems to be simple, but I can't find out
(I edited question)
The problem is here
#single = Single.all
#coe = Coe.all
#blend = Blend.all
#production = #single+#coe+#blend
change these lines with
#single = Single.all.to_a
#coe = Coe.all.to_a
#blend = Blend.all.to_a
#production = #single+#coe+#blend
and then if you will check
#production.first.class.name #Single
#production.last.class.name #Blend
so in your view you can do this
<% #production.each do |p| %>
<% p.each do |product| %>
<%= product.class.name %>
<% end %>
<% end %>
if while iterating on #production it returns array so you need to try this.
<% #production.each do |p| %>
<% p.each do |product| %>
<%= product.class.name %>
<% end %>
<% end %>
#production is a collections of combinations of single, coe, and blend thats why #production.class.name doesnt work, you need to iterate each object like this:
<% #production.each do |object| %>
<%= object.class.name %>
<% end %>
For my final project I need to create two radio buttons with a submit button that will display my GPA for all my classes and those in my major. I can have them displayed easily but am stuck when I need to use radio buttons to display only one
<h2>Please select which GPA you would like to view:</h2>
<%= form_tag("/trans/transcript", :method => "get") do %>
<table>
<tr>
<th>Major Credits</th>
<th>All Credits</th>
</tr>
<tr>
<td><%= radio_button_tag(:gpa, "Major") %></td>
<td><%= radio_button_tag(:gpa, "All") %> </td>
</tr>
</table>
<%= submit_tag("View GPA") %>
<% end %>
<p> Major credits GPA <%= #transcript.GPA_for_major %>
<p> All credits GPA <%= #transcript.GPA_for_non_major %>
Everything appears fine but I'm not sure how to set up the controller to say if he clicks the major gpa radio button and clicks "View GPA" this <%= #transcript.GPA_for_major %> should display
SHORT ANSWER
Make an instance variable #gpa in TransController's transcript action
In the transcript action, check for params[:gpa]
set #gpa & #transcript to nil if params[:gpa].nil?
set #gpa to params[:gpa] and #transcript accordingly if params[:gpa] is not nil
In the view/trans/transcript.html.erb
If #gpa is nil, display nothing
If #gpa == "Major" show #transcript.GPA_for_major
If #gpa == "All" show #transcript.GPA_for_non_major
LONG ANSWER
Assuming that the controller is trans and the action is transcript, here is what you should do in TransController
class TransController < ApplicationController
def transcript
if params[:gpa].nil?
#transcript = #gpa = nil
else
#gpa = params[:gpa]
#transcript = ... # Find your transcript here
end
end
# ... other actions
# ... other actions
# ... other actions
end
and here is how the trans/transcript.html.erb view should look like -
<h2>Please select which GPA you would like to view:</h2>
<%= form_tag('trans/transcript', :method => "get") do %>
<table>
<tr>
<th>Major Credits</th>
<th>All Credits</th>
</tr>
<tr>
<td>Major<%= radio_button_tag(:gpa, "Major") %></td>
<td>All<%= radio_button_tag(:gpa, "All") %> </td>
</tr>
</table>
<%= submit_tag("View GPA") %>
<% end %>
<% if #gpa == "Major" %>
<%= #transcript.GPA_for_major %>
<% elsif #gpa == "All" %>
<%= #transcript.GPA_for_major %>
<% end %>
In code:
<% #line_item.each do |line_item| %>
<% id=line_item.menu_id%>
<% #menu1=Menu.find(id)%>
<%= #menu_name = #menu1.menu_item_name%>
<% #offers.each do |offer| %>
**<% if offer.menuName_buy1 == #menu_name && offer.menuName_buy2 == #menu_name %>**
I am new in rails.I want to compare menuName_buy1 & menuName_buy2 with #menu_name, but how do i achieve this result.At a time i am getting 1 value for #menu_name.
Hi newb to Rails here.
I want to format a string to fit into an html div. The model I'm after is;
Break the string into an array seperated by whitespace.
If any array item length is greater than 22
Split the characters into lengths of 22 and display.
else separate the words by whitespace and then display.
It's for handling long names on a guestbook type application.
<% $p = 0 %>
<% #m = name.split(" ") %>
<% while $p < #m.size do %>
<% if #m[$p].length > 22 %>
<%= name.slice(0, 21) %><br>
<%= name.slice(21, 43) %><br>
<% else %>
<% $i = 0 %>
<% #x = name.split(" ") %>
<% while $i < #x.size do %>
<%= #x[$i] %><br>
<% $i +=1 %>
<% end %>
<% end %>
<% $p +=1 %>
<% end %>
(1..(name.length / 22)).each { |i| name[22*i] = ' ' } if name.length > 22