I have 3 pages:
[Page 1] Index
[Page 2] User enter value in a form.
[Page 3] Do calculation on the value entered and output it on this page.
I as wondering how do i do this? I do not want to save the data in any database.
Thank you =)
*Added info 20100628 based on feedback. Thank you! *
for PHP, I could user $_GET and %_POST function. I am not sure how to do it on ROR. [Page 1: index.html]
Amount in bank: Interest rate (%):[Page 2: interest_cal.php] In 10 yrs, the total amount in your bank would be _______
welcome to stackoverflow. This is a programming QA Website, so it would be nice to see some Code, to see more clearly what You want. But I think what you want is a tableless model. There are two good screencasts by railscasts :
只需在模型中声明属性并使用它即可。
attr_accessor :value
如果您在Rails中使用params[:field_name]
,则与PHP中的$_REQUEST['field_name']
类似(除了Rails中的params
不像$ _REQUEST那样包含cookie),
I do not want to save the data in any database.
its simple don't create any model. or if you must create model. create model without inheritance from ActiveRecord::Base
class UserModel
but not
class UserModel < ActiveRecord::Base
for PHP, I could user $_GET and %_POST function.
use params variable in controller
Try something like this
Page1 -> index
Page2 ->
say you have a model called user which is not inherited from ActiveRecord, so it will be looks like this
class User
attr_accessor :my_value
end
and you will have a form like this
<% form_for(@user) do |f| %>
<p>
<%= f.text_field :my_value %>
</p>
<p>
<%= f.submit 'send value' %>
</p>
<% end %>
** sorry i had to remove some tags
and in your form post action (in controller), you can get the value as
params[:user][:my_value]
hope this helps
cheers
sameera
If you don't have a model, but just simply a variable, I would prefer using form_tag instead of form_for
<%= form_tag :action => "your_page_3_action" $>
<%= text_field_tag :some_var %>
Something like that. And then you could get back the :some_var through:
def your_page_3_action
params[:some_var] # that's your input valut
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