f.send in form?

rubyonrails-talk
1

Can you do f.send in a form? I have questions and the data type stored in a db.

<% Question.all.each do |question| %>

<%= f.send(:label, question.name), :class => ‘control-label’ %>

<%= f.send(question.data_type.to_sym, :question, :name) %> - <%= ’ allergic to shellfish?’ %>

<% end %>

2

Of course! Are you encountering any problems with that?

Dheeraj Kumar

3 
Is there something I need to do to the data_type to make it recognize it as a method?

wrong number of arguments (3 for 0)

<div class="control-group">
48: <%= f.label question.name.to_sym, :class => 'control-label' %>
49: <div class="controls">
50: <%= question.data_type "person[person_question_ids][]", [question.id](http://question.id), nil %> - <%= ' allergic to shellfish?' %>
51: </div>
52: </div>
4

You can access the object by using

f.object

then you can do

f.object.send

here ‘f.object’ return an instance of Question, but i think that whatever you are trying to do you are doing it wrong, can you elaborate in what you are trying to do?

5

Wait, what? You posted the correct code in your original post, but this isn’t that code. Line 50 here is saying, “call the data_type method on the question object with these three parameters”. The generated accessor doesn’t understand the parameters, and you get the error.

If you want to call a method whose name is selected at runtime, you need to use send.

–Matt Jones

6

Been a while, I had the closing bracket in the wrong spot:

send needs all the params, it was erroring on , if i put the closing bracket right after the data_type or name

<%= person_question.send(question.data_type.to_sym, question.name, :class => ‘text_field’) %>