问题
In my view I need to add (dynamically) text inputs and I need to get theirs values in the controller (once the user submit the corresponding form).
My inputs are:
<input type="text" name="airports_input_origin" class="airports_input_origin" id="airports_input_origin_0" size="40"/>
<input type="text" name="airports_input_origin" class="airports_input_origin" id="airports_input_origin_1" size="40"/>
etc... etc...
They all have the same 'name' attribute.... so I guessed that if I do
params[:airports_input_origin]
I'd get the array ... but I was wrong...
How can I get those values?
Thx!
回答1:
You'd have to do something like so:
<input type="text" name="airports_input_origin[0]" class="airports_input_origin" id="airports_input_origin_0" size="40"/>
<input type="text" name="airports_input_origin[1]" class="airports_input_origin" id="airports_input_origin_1" size="40"/>
Rails understand that it's an array if you tag numbers like that within the name.
So you could have a JavaScript function that iterates over all the inputs and resets their numbers everytime a destination is added/deleted. Use regex to replace the numbers or you could probably even hard code the name and change the "[x]" if this is all that's required.
来源：https://stackoverflow.com/questions/6626636/how-to-pass-an-array-from-view-to-controller-in-ruby-on-rails