I have two files. .rb (with Ruby code) and .erb(HTML file with some ruby script). I am calling a Ruby function in .rb from .erb.
.erb
<a href="<%= url_for :action => :showProducts(i) %>">Click here</a>
.rb
def showProducts(param)
//Some code
end
I am able to call a function without passing parameters to it. But as and when I pass parameters to function and then call it, I receive an error. I know this is the incorrect way to call a parametrized function from .erb. What is the correct way of calling a parameterized function from HTML?
If you add in another key/value pair to the hash in url_for
<%= url_for :action => :showProducts, :product => "toaster" %>
Your URL should go from, say, http://localhost:3000/showProducts
to http://localhost:3000/showProducts?product=toaster
Here, we're adding parameters to the GET request. To access these parameters in the controller we use the params
hash. For example to get the product
(toaster
):
params[:product] #=> "toaster"
I found the solution to my problem :
<a href="<%= url_for :action => :showProducts, :id=> 'Hello' %>">
.rb function:
def showProducts(param)
//Some code
end
I found the solution
def showProducts
@params['product']
end