[Solved-4 Solutions] Rails hidden field undefined method 'merge' error
Error Description:
Rails hidden field undefined method 'merge' error
Solution 1:
- We should do:
<%= f.hidden_field :service, :value => "test" %>click below button to copy the code. By - ruby on rails tutorial - team
- hidden_field expects a hash as a second argument
- we are using a hidden_field instead of a hidden_field_tag. Because we are using the non-_tag version, it is assumed that our controller has already set the value for that attribute on the object that backs the form.
For example:
controller:
def new
...
@order.service = "test"
...
end</pre>
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view:
<%= form_for @order do |f| %>
<%= f.hidden_field :service %>
<%= f.submit %>
<% end %>
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Solution 2:
We should do:
<%= f.hidden_field :service, :value => "test" %>
click below button to copy the code. By - ruby on rails tutorial - team
- hidden_field expects a hash as a second argument
Solution 3:
- By the way, we don't use hidden fields to send data from server to browser. Data attributes are awesome. We can do
<%= form_for @order, 'data-service' => 'test' do |f| %>
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- And then get attribute value with jquery
$('form').data('service')
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Solution 4:
- A version with the new syntax for hashes in ruby 1.9:
<%= f.hidden_field :service, value: "test" %>