undefined method `stringify_keys!' ruby on rails
I have this code:
def addcar
@car = Car.new(params[:car])
render :action => 'list'
end
<% @allcars.each do |cell| %>
<p>
<%= link_to cell.to_s, :controller => 'car', :action => 'addcar', :car => cell.to开发者_高级运维_s %>
</p>
<% end %>
It's giving me this error:
undefined method `stringify_keys!' for "Honda":String
I don't understand what is wrong with :car
.
in the addcar
method, you try to create a new object (create
method) while transfering just a string to it (params[:car]
which apparently is set to "Honda").
create
expects to get an attributes hash and to stringify it's keys for
the column names.
If you have a column named name in your cars table then try this:
@car = Car.new(:name => params[:car])
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