Calling method in rails - ruby-on-rails

Question

In my application I have an form to create new company. Here I have to enter company name and company url.Here is my code for the from.
<%= form_tag(controller: "/company", action: "add_startup_to_index", method: "post") do %>
<div class="modal-body">
<div class="form-group">
<label class="control-label">Company Name</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Enter the name of the company..." required />
</div>
<div class="form-group">
<label class="control-label">Company URL</label>
<input type="text" class="form-control" id="url" name="url" placeholder="e.g. http://www.company.com..." required />
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default btn-conf" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary btn-conf">Add Company</button>
</div>
<% end %>
This is my method for saving above data.
def add_startup_to_index
#url = api_version_root + 'startups/new'
response = RestClient.post #url,
{ startup: { friendly_name: params[:name],
url: params[:url]
}
}, api_token_hash
record = JSON.parse(response.body)
flash[:info] = 'Startup has been added and Crunchbase sync started.'
redirect_to('/startups/' + record['company_id']) && return
rescue RestClient::ExceptionWithResponse => err
handle_rest_error http_code: err.http_code
end
This is working fine and I can save the companies. Now I want to validate the URL. For that I have below method.
def valid_url?(url)
return false if url.include?("<script")
url_regexp = /^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$/ix
url =~ url_regexp ? true : false
end
Since I am new for rails I have no idea how to call that method within my form. I had tried nested form_tag. But it is now allowed.
I tried as below.
<%= form_tag(controller: "/company", action: "add_startup_to_index", method: "post") do %>
<div class="modal-body">
<div class="form-group">
<label class="control-label">Company Name</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Enter the name of the company..." required />
</div>
<%= form_tag(controller: "/company", action: "valid_url", method: "post") do %>
<div class="form-group">
<label class="control-label">Company URL</label>
<input type="text" class="form-control" id="url" name="url" placeholder="e.g. http://www.company.com..." required />
</div>
<% end %>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default btn-conf" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary btn-conf">Add Company</button>
</div>
<% end %>
Can any one help me for this.

Answer 1

Lanka, if I understand you correctly, what you are looking for is client side form validation. Before HTML5 this was a tedious task involving JS. With HTML5, url validation is baked right in. Simply try to change the type of the input to url, i.e. change
<input type="text" id="url" name="url" ...>
to
<input type="url" id="url" name="url" ...>
Then, when a non-conforming url string is entered, the browser will not submit the form and automatically indicate the issue. This even works out of the box with a default url pattern. See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/url for more information on custom patterns, placeholders and much more.