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How can i have a link on a page that takes the user to another URL and passes along a parameter and on the target url how can we pick up that parameter.
usually I add links like following:
<%= link_to "Add Product", '/pages/product' %> But how can I send parameters along with this url? Can I pick them in the target action by using params[:parm_name]
953
Any word after the question mark (?) in a URL is considered to be a parameter which can hold values. The value for the corresponding parameter is given after the symbol "equals" (=). Multiple parameters can be passed through the URL by separating them with multiple "&".
What you would like is to pass account_id as a url parameter to the path. If you have set up named routes correctly in routes. rb, you can use path helpers. And you need to control that account_id is allowed for 'mass assignment'.
GET parameters (also called URL parameters or query strings) are used when a client, such as a browser, requests a particular resource from a web server using the HTTP protocol. These parameters are usually name-value pairs, separated by an equals sign = . They can be used for a variety of things, as explained below.
Just add them to link:
<%= link_to "Add Product", '/pages/product?param1=value1¶m2=value2' %> and in controller:
param1 = params[:param1] # "value1" param2 = params[:param2] # "value2" If you use helper methods for routes (for example company_path), then you can add hash of params, so this two should be similar:
<%= link_to "Add Product", new_product_path(:param1 => "value1", :param2 => "value2") %> <%= link_to "Add Product", "/products/new?param1=value1¶m2=value2" %> From documentation:
link_to "Comment wall", profile_path(@profile, :anchor => "wall") # => <a href="/profiles/1#wall">Comment wall</a> link_to "Ruby on Rails search", :controller => "searches", :query => "ruby on rails" # => <a href="/searches?query=ruby+on+rails">Ruby on Rails search</a> link_to "Nonsense search", searches_path(:foo => "bar", :baz => "quux") # => <a href="/searches?foo=bar&baz=quux">Nonsense search</a> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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